[Ovmsdev] 3G / 2G fallback on SIM5360 Europe?

Chris van der Meijden chris at arachnon.de
Wed Aug 5 16:47:21 HKT 2020


:-))


Am Mittwoch, den 05.08.2020, 16:33 +0800 schrieb Mark Webb-Johnson:
> Maybe VW lying about antenna performance? Wouldn’t be the first time:
>  🤣
> Mark
> > On 5 Aug 2020, at 4:08 PM, Chris van der Meijden <chris at arachnon.de
> > > wrote:
> > 
> > 
> >     
> >   
> >   Hi Michael,
> > the antenna seems not to be active according to the wiring diagram
> > and some forum posts I found.
> > I double checked the connection of GPS and GSM. Seems to OK ...
> > Greetinx
> > Chris
> > 
> > Am Mittwoch, den 05.08.2020, 08:01 +0200 schrieb Michael Balzer:
> > >     Chris,
> > > 
> > >     
> > > 
> > >     two additional thoughts:
> > > 
> > >     
> > > 
> > >     - maybe the VW antenna contains a GSM and a GPS antenna (?),
> > > and you
> > >     connected the wrong one?
> > > 
> > >     
> > > 
> > >     - maybe the VW antenna is an active one and needs a supply
> > > voltage
> > >     which is currently missing?
> > > 
> > >     
> > > 
> > >     Regards,
> > > 
> > >     Michael
> > > 
> > >     
> > > 
> > >     
> > > 
> > >     Am 05.08.20 um 07:24 schrieb Mark
> > >       Webb-Johnson:
> > > 
> > >     
> > > 
> > >     
> > > >       
> > > >       Maybe,
> > > >       
> > > > 
> > > >       
> > > >       Or the VW antenna is way off on specification.
> > > >       
> > > > 
> > > >       
> > > >       Regards, Mark.
> > > > 
> > > >         
> > > > 
> > > >           
> > > > >             On 5 Aug 2020, at 1:17 PM, Chris van der
> > > > >               Meijden <chris at arachnon.de> wrote:
> > > > >             
> > > > > 
> > > > >             
> > > > >               
> > > > >               
> > > > >                 Thank you for your response.
> > > > >                 
> > > > > 
> > > > >                 
> > > > >                 That leaves me with a poor home made SMA
> > > > >                   to Fakra adapter cable, I guess ...
> > > > >                 
> > > > > 
> > > > >                 
> > > > >                 Regards
> > > > >                 
> > > > > 
> > > > >                 
> > > > >                 Chris
> > > > >                 
> > > > > 
> > > > >                 
> > > > >                 Am Mittwoch, den 05.08.2020, 09:27 +0800
> > > > >                   schrieb Mark Webb-Johnson:
> > > > >                 
> > > > > > The antenna surely
> > > > > >                   helps, but in some locations you can
> > > > > > receive a signal
> > > > > >                   with a piece of wet string resting on the
> > > > > > antenna
> > > > > >                   connection. Seriously. At my office
> > > > > > desktop, I still
> > > > > >                   get 3G without an antenna connected (but
> > > > > > I don’t
> > > > > >                   recommend it due to possible feedback in
> > > > > > the modem
> > > > > >                   module).
> > > > > >                   
> > > > > > 
> > > > > >                   
> > > > > >                   These are not binary on/off situations.
> > > > > >                     An antenna rated to 1710-1990 will
> > > > > > still work at
> > > > > >                     1991, or even 2100, but just not
> > > > > > optimally with the
> > > > > >                     best reception or transmission.
> > > > > > 
> > > > > >                     
> > > > > > 
> > > > > >                     
> > > > > >                     The original Fasttech antennas were
> > > > > >                       designed for 2G (OVMS v2), but should
> > > > > > still cover
> > > > > >                       some 3G ranges optimally. The newer
> > > > > > ones (from
> > > > > >                       Medlock in USA and OpenEnergyMonitor
> > > > > > in UK) should
> > > > > >                       cover all ranges (up to and including
> > > > > > 4G LTE) -
> > > > > >                       and we used these for radio
> > > > > > certification so have
> > > > > >                       been very thoroughly tested at all
> > > > > > the supported
> > > > > >                       2G and 3G frequency ranges.
> > > > > >                     
> > > > > > 
> > > > > >                     
> > > > > >                     Regards, Mark.
> > > > > >                     
> > > > > > 
> > > > > >                       
> > > > > > >                         On 5 Aug 2020, at 12:21 AM, Chris
> > > > > > >                           van der Meijden <chris at arachnon
> > > > > > > .de>
> > > > > > >                           wrote:
> > > > > > >                         
> > > > > > > 
> > > > > > >                         
> > > > > > >                           
> > > > > > >                           
> > > > > > >                             Still digging on the subject
> > > > > > >                               ...
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             Today I took my original
> > > > > > >                               Fasttech OVMS v2 antenna
> > > > > > > out of my Nissan
> > > > > > >                               Leaf and connected it to
> > > > > > > the OVMS v3 in
> > > > > > >                               our VW e-Up. And surprise,
> > > > > > > surprise I got
> > > > > > >                               direct connection over the
> > > > > > > SIM to the
> > > > > > >                               network.
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             The VW antenna gives me -101
> > > > > > >                               dBm, the Fasttech antenna
> > > > > > > gives me -91
> > > > > > >                               dBm.
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             So I took a look at the
> > > > > > >                               frequencies ...
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             The old fasttech antenna has
> > > > > > > a
> > > > > > >                               frequency range of 824-960
> > > > > > > / 1710-1990.
> > > > > > >                             
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             o2 (my SIM card provider)
> > > > > > > uses
> > > > > > >                               GSM 900 and GSM+LTE 1800
> > > > > > > for 2g (4g LTE
> > > > > > >                               cannot be used on the
> > > > > > > SIM5360) and uses
> > > > > > >                               UMTS 2100 for 3g.
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             Now I have two theories on
> > > > > > >                               what make things go wrong
> > > > > > > with the VW
> > > > > > >                               antenna, but work with the
> > > > > > > fasttech
> > > > > > >                               antenna:
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             1. My home made sma / fakra
> > > > > > >                               adapter cable to the VW
> > > > > > > antenna is bad
> > > > > > >                               (could be, but in the city
> > > > > > > it connects)
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             2. Because 3g on 2100 mHz is
> > > > > > >                               not available through the
> > > > > > > fasttech
> > > > > > >                               antenna, OVMS v3 is forced
> > > > > > > to 2g and
> > > > > > >                               everything runs fine.
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             Any corrections on the second
> > > > > > >                               theory are welcome. I'm
> > > > > > > guessing ...
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             I will buy an other sma 2g/3g
> > > > > > >                               antenna just to get rid of
> > > > > > > the problem,
> > > > > > >                               but will also continue
> > > > > > > thinking on this
> > > > > > >                               one.
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             Greetinx
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             Chris
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             
> > > > > > > 
> > > > > > >                             
> > > > > > >                             Am Montag, den 03.08.2020,
> > > > > > >                               12:31 +0200 schrieb Chris
> > > > > > > van der Meijden:
> > > > > > >                             
> > > > > > > >                               Hi Michael
> > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               
> > > > > > > >                               yeah, economical
> > > > > > > > visionaries
> > > > > > > >                                 are always a lot of fun
> > > > > > > > :-))
> > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               
> > > > > > > >                               I read that "GSM voices
> > > > > > > >                                 services" line too and
> > > > > > > > checked on that
> > > > > > > >                                 with my mobile phone. I
> > > > > > > > restricted the
> > > > > > > >                                 connection of the phone
> > > > > > > > with
> > > > > > > >                                 *#*#4636#*#* to "GSM
> > > > > > > > auto (PRL)" and it
> > > > > > > >                                 connects to EDGE. So
> > > > > > > > data over GSM is
> > > > > > > >                                 available ...
> > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               
> > > > > > > >                               Still mysterious. Will
> > > > > > > > dig
> > > > > > > >                                 some more ...
> > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               
> > > > > > > >                               Greetinx
> > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               
> > > > > > > >                               Chris
> > > > > > > >                                
> > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               
> > > > > > > >                               Am Montag, den
> > > > > > > > 03.08.2020,
> > > > > > > >                                 12:21 +0200 schrieb
> > > > > > > > Michael Balzer:
> > > > > > > >                               
> > > > > > > > >  Chris,
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 we don't tell the
> > > > > > > > > modem to restrict
> > > > > > > > >                                 itself in any way.
> > > > > > > > > Bugs in the modem
> > > > > > > > >                                 firmware are likely,
> > > > > > > > > but I think a
> > > > > > > > >                                 serious bug like this
> > > > > > > > > would have been
> > > > > > > > >                                 solved early.
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 I've read the pilot
> > > > > > > > > description now, and
> > > > > > > > >                                 you need to pay
> > > > > > > > > attention to this
> > > > > > > > >                                 section:
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > > statt
> > > > > > > > > >                                   der üblichen drei
> > > > > > > > > > Dienste LTE, UMTS
> > > > > > > > > >                                   und GSM kommen in
> > > > > > > > > > Kirchfarrnbach "nur"
> > > > > > > > > >                                   LTE 800 und LTE
> > > > > > > > > > 900 für die
> > > > > > > > > >                                   Datenversorgung
> > > > > > > > > > sowie GSM für
> > > > > > > > > >                                   Sprachdienste und
> > > > > > > > > > SMS zum Einsatz. Auf
> > > > > > > > > >                                   UMTS haben die
> > > > > > > > > > Funknetzplaner hier
> > > > > > > > > >                                   verzichtet, weil
> > > > > > > > > > bereits LTE und GSM
> > > > > > > > > >                                   alle
> > > > > > > > > > Anforderungen der Bevölkerung
> > > > > > > > > >                                   erfüllen.
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 …translated…
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > > Instead
> > > > > > > > > >                                   of the usual
> > > > > > > > > > three services LTE, UMTS
> > > > > > > > > >                                   and GSM, "only"
> > > > > > > > > > LTE 800 and LTE 900
> > > > > > > > > >                                   are used in
> > > > > > > > > > Kirchfarrnbach for data
> > > > > > > > > >                                   supply as well as
> > > > > > > > > > GSM for voice
> > > > > > > > > >                                   services and SMS.
> > > > > > > > > > The radio network
> > > > > > > > > >                                   planners have
> > > > > > > > > > dispensed with UMTS here
> > > > > > > > > >                                   because LTE and
> > > > > > > > > > GSM already meet all
> > > > > > > > > >                                   the requirements
> > > > > > > > > > of the population.
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 So you have neither
> > > > > > > > > UMTS nor EDGE. GSM
> > > > > > > > >                                 is only available for
> > > > > > > > > voice streams and
> > > > > > > > >                                 SMS. Data is only
> > > > > > > > > available via LTE.
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 Your only option is
> > > > > > > > > to tell them they're
> > > > > > > > >                                 a bunch of …
> > > > > > > > > outstanding economical
> > > > > > > > >                                 visionaries, who
> > > > > > > > > could possibly consider
> > > > > > > > >                                 rethinking their IoT
> > > > > > > > > compatibility ;-)
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 Regards,
> > > > > > > > > 
> > > > > > > > >                                 Michael
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 Am 03.08.20
> > > > > > > > >                                   um 11:33 schrieb
> > > > > > > > > Chris van der
> > > > > > > > >                                   Meijden:
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > >                                 
> > > > > > > > > >                                   
> > > > > > > > > >                                   I did some more
> > > > > > > > > > reading
> > > > > > > > > >                                     on the SIM5360
> > > > > > > > > > and also digged a bit
> > > > > > > > > >                                     through the
> > > > > > > > > > simcom source. Found
> > > > > > > > > >                                     loads of AT-
> > > > > > > > > > commands there :-)
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   I could not find
> > > > > > > > > > an AT
> > > > > > > > > >                                     command to
> > > > > > > > > > restrict the selection to
> > > > > > > > > >                                     2g. Perhaps I
> > > > > > > > > > did not look deep
> > > > > > > > > >                                     enough, but if
> > > > > > > > > > someone knows the
> > > > > > > > > >                                     command ...
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   I'm still
> > > > > > > > > > thinking why
> > > > > > > > > >                                     the automatic
> > > > > > > > > > fallback to 2g does
> > > > > > > > > >                                     not happen. 
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   - The transmitter
> > > > > > > > > > offers
> > > > > > > > > >                                     only 2g (GSM
> > > > > > > > > > 900 mHz) and LTE (800
> > > > > > > > > >                                     or 1800). No
> > > > > > > > > > 3g.
> > > > > > > > > >                                   - I have a signal
> > > > > > > > > >                                     strength of
> > > > > > > > > > -110 to -100 dBm
> > > > > > > > > >                                   - AT+COPS? gives
> > > > > > > > > > me an
> > > > > > > > > >                                     empty response.
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   Could it be
> > > > > > > > > > possible,
> > > > > > > > > >                                     that somewhere
> > > > > > > > > > in the code something
> > > > > > > > > >                                     like
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   - I don't have 3g
> > > > > > > > > >                                   - I do have LTE
> > > > > > > > > >                                   - Lets try LTE
> > > > > > > > > >                                   - I see LTE
> > > > > > > > > >                                   - I have no
> > > > > > > > > > hardware for
> > > > > > > > > >                                     LTE
> > > > > > > > > >                                   - OK, don't do
> > > > > > > > > > anything
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   happens? So
> > > > > > > > > > somehow
> > > > > > > > > >                                     fallback to 2g
> > > > > > > > > > never happens?
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   Just guessing
> > > > > > > > > > around ...
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   Regards
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   Chris
> > > > > > > > > >                                    
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   Am Montag, den
> > > > > > > > > >                                     03.08.2020,
> > > > > > > > > > 10:10 +0800 schrieb Mark
> > > > > > > > > >                                     Webb-Johnson:
> > > > > > > > > >                                   
> > > > > > > > > > > The
> > > > > > > > > > >                                     SIM5360E
> > > > > > > > > > > should auto-switch between
> > > > > > > > > > >                                     2G and 3G. It
> > > > > > > > > > > supports the following
> > > > > > > > > > >                                     frequency
> > > > > > > > > > > bands:
> > > > > > > > > > >                                     
> > > > > > > > > > > 
> > > > > > > > > > >                                     
> > > > > > > > > > >                                     
> > > > > > > > > > >                                       GSM/GPRS/ED
> > > > > > > > > > > GE
> > > > > > > > > > >                                           850/900
> > > > > > > > > > > /1800/1900MHz;
> > > > > > > > > > >                                       UMTS/HSPA+
> > > > > > > > > > >                                           900/210
> > > > > > > > > > > 0MHz
> > > > > > > > > > >                                     
> > > > > > > > > > >                                     
> > > > > > > > > > > 
> > > > > > > > > > >                                     
> > > > > > > > > > >                                     There are
> > > > > > > > > > > SIMCOM
> > > > > > > > > > >                                       options/com
> > > > > > > > > > > mands to restrict the
> > > > > > > > > > >                                       selection,
> > > > > > > > > > > but the default is
> > > > > > > > > > >                                       automatic.
> > > > > > > > > > >                                     
> > > > > > > > > > > 
> > > > > > > > > > >                                       Regards,
> > > > > > > > > > > Mark
> > > > > > > > > > >                                       
> > > > > > > > > > > 
> > > > > > > > > > >                                         
> > > > > > > > > > > >                                           On 2
> > > > > > > > > > > > Aug 2020,
> > > > > > > > > > > >                                             at
> > > > > > > > > > > > 6:40 PM, Chris van der
> > > > > > > > > > > >                                             Mei
> > > > > > > > > > > > jden <chris at arachnon.de>
> > > > > > > > > > > >                                             wro
> > > > > > > > > > > > te:
> > > > > > > > > > > >                                           
> > > > > > > > > > > >                                             
> > > > > > > > > > > >                                             
> > > > > > > > > > > >                                               H
> > > > > > > > > > > > ey Michael
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               T
> > > > > > > > > > > > hanx for
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  the help :-)
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               T
> > > > > > > > > > > > he AT
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  commands are working
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  now, but as expected no
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  connection at all. So
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  also no fallback to 2g.
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  Or no GPRS offered on 2g
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  ...
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               H
> > > > > > > > > > > > ere some
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  (German) information on
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  the "site lite"
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  transmitters:
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               h
> > > > > > > > > > > > ttps://www.telekom.com/de/blog/netz/artikel/sta
> > > > > > > > > > > > ndort-light-pilotprojekt-552152
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               I
> > > > > > > > > > > > also did
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  not find any AT command
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  for the SIM5360 to force
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  2g. I will play a bit
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  around with the modem in
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  the next days. Will also
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  try congstar, I do have
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  a congstar SIM laying
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  around here ...
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               G
> > > > > > > > > > > > reetinx
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               C
> > > > > > > > > > > > hris
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               
> > > > > > > > > > > > 
> > > > > > > > > > > >                                               
> > > > > > > > > > > >                                               A
> > > > > > > > > > > > m Sonntag,
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  den 02.08.2020, 10:59
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  +0200 schrieb Michael
> > > > > > > > > > > >                                                
> > > > > > > > > > > >  Balzer:
> > > > > > > > > > > >                                               
> > > > > > > > > > > > >  Chris,
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    how to send modem
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    commands and read the
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    responses:
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    OVMS# log
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      level debug simcom
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Logging
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      level for simcom set
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      to debug
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    OVMS#
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      simcom cmd AT+COPS?
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    SIMCOM
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      command has been sent.
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    D
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      (164488782) simcom: tx
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      mcmd ch=4 len=10  :
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      AT+COPS?
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    D
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      (164488792) simcom: rx
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      line ch=4 len=23  :
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      +COPS:
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      0,0,"congstar",2
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    D
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      (164488802) simcom: rx
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      line ch=4 len=2   : OK
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Now let's see if we have
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    3G:
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    OVMS#
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      simcom cmd AT+CPSI?
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    SIMCOM
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      command has been sent.
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    D
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      (164693462) simcom: tx
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      mcmd ch=4 len=10  :
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      AT+CPSI?
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    D
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      (164693482) simcom: rx
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      line ch=4 len=85  :
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      +CPSI:
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      WCDMA,Online,262-01,0x16C3,7824927,WCDMA
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      IMT
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      2000,454,10836,0,7.5,104,18,8,500
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    D
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      (164693482) simcom: rx
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      line ch=4 len=2   : OK
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Yes. Well, no surprise,
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Telekom network :-).
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    The SIM5360 is supposed
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    to automatically fall
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    back to 2G if 3G isn't
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    available. On a quick
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    browse through the
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    manual, I didn't find a
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    command to force 2G,
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    just one to lock to a
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    specific 2G cell… you
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    could do that depending
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    on your location, but
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    maybe you should first
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    inspect your modem
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    status now.
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Regards,
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Michael
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    Am
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      02.08.20 um 09:39
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      schrieb Chris van der
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >      Meijden:
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Hi all
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        I'm
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          trying to understand
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          some principals of
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          the SIM connection
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          methods of OVMS.
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Reason
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          is that I recently
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          moved from "the big
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          city" Munich to the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          very much rural
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          village Thalham. In
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          Thalham we have so
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          called "lite" mobile
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          transmitters. These
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          transmitters are
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          installed, as far as
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          I understood, to
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          safe money and to
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          prepare the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          transition of the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          providers to 4g /
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          5g. They are forcing
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          the frequencies
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          towards the 4g band
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          with those.
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        So these
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          transmitters seem to
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          offer only 2g and
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          4g, but no more 3g
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          (really ???).
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        I don't
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          have any network
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          connection with the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          SIM in my OVMS here
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          in Thalham. In the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          next village Zolling
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          I have connection.
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          In Zolling they
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          don't have the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          "lite" transmitters,
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          but still have full
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          3g support. The
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          antenna of my OVMS
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          is working well
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          (-100 dBm to -70
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          dBm).
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Now my
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          questions ...
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Does
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          OVMS have a fallback
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          on SIM5360 Europe to
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          2g (EDGE) if 3g is
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          not available?
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        I also
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          did some reading in
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          the modem
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          documentation and
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          tried to send some
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          AT commands. Goal is
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          to try to force the
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          SIM into 2g mode. I
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          tried i.e.
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        simcom
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          muxtx 2 AT+COPS?
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        to get
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          some information
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          from the SIM, but I
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          don't get an answer
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          on that command at
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          all. No matter what
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          channel I try. Am I
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          missing something
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          there?
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Thanx
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >          for input.
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Regards
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        Chris
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >        ____________________________________
> > > > > > > > > > > > > > ___________
> > > > > > > > > > > > > > OvmsDev mailing list
> > > > > > > > > > > > > > OvmsDev at lists.openvehicles.com
> > > > > > > > > > > > > > http://lists.openvehicles.com/mailman/listi
> > > > > > > > > > > > > > nfo/ovmsdev
> > > > > > > > > > > > > > 
> > > > > > > > > > > > > >                                            
> > > > > > > > > > > > > >      
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >    __________________________________________
> > > > > > > > > > > > > _____
> > > > > > > > > > > > > OvmsDev mailing list
> > > > > > > > > > > > > OvmsDev at lists.openvehicles.com
> > > > > > > > > > > > > http://lists.openvehicles.com/mailman/listinf
> > > > > > > > > > > > > o/ovmsdev
> > > > > > > > > > > > > 
> > > > > > > > > > > > >                                              
> > > > > > > > > > > > >  
> > > > > > > > > > > > 
> > > > > > > > > > > >                                             
> > > > > > > > > > > > _______________________________________________
> > > > > > > > > > > > 
> > > > > > > > > > > >                                             Ovm
> > > > > > > > > > > > sDev mailing list
> > > > > > > > > > > > 
> > > > > > > > > > > >                                             Ovm
> > > > > > > > > > > > sDev at lists.openvehicles.com
> > > > > > > > > > > > 
> > > > > > > > > > > >                                             htt
> > > > > > > > > > > > p://lists.openvehicles.com/mailman/listinfo/ovm
> > > > > > > > > > > > sdev
> > > > > > > > > > > > 
> > > > > > > > > > > >                                           
> > > > > > > > > > > >                                         
> > > > > > > > > > > 
> > > > > > > > > > >                                       
> > > > > > > > > > >                                       
> > > > > > > > > > > 
> > > > > > > > > > >                                     
> > > > > > > > > > >                                     _____________
> > > > > > > > > > > __________________________________
> > > > > > > > > > > OvmsDev mailing list
> > > > > > > > > > > OvmsDev at lists.openvehicles.com
> > > > > > > > > > > http://lists.openvehicles.com/mailman/listinfo/ov
> > > > > > > > > > > msdev
> > > > > > > > > > > 
> > > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > > 
> > > > > > > > > >                                   
> > > > > > > > > >                                   _________________
> > > > > > > > > > ______________________________
> > > > > > > > > > OvmsDev mailing list
> > > > > > > > > > OvmsDev at lists.openvehicles.com
> > > > > > > > > > http://lists.openvehicles.com/mailman/listinfo/ovms
> > > > > > > > > > dev
> > > > > > > > > > 
> > > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 
> > > > > > > > > 
> > > > > > > > >                                 _____________________
> > > > > > > > > __________________________
> > > > > > > > > OvmsDev mailing list
> > > > > > > > > OvmsDev at lists.openvehicles.com
> > > > > > > > > http://lists.openvehicles.com/mailman/listinfo/ovmsde
> > > > > > > > > v
> > > > > > > > > 
> > > > > > > > >                               
> > > > > > > > 
> > > > > > > >                               _________________________
> > > > > > > > ______________________
> > > > > > > > OvmsDev mailing list
> > > > > > > > OvmsDev at lists.openvehicles.com
> > > > > > > > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> > > > > > > > 
> > > > > > > >                             
> > > > > > > 
> > > > > > >                           
> > > > > > > _______________________________________________
> > > > > > > 
> > > > > > >                           OvmsDev mailing list
> > > > > > > 
> > > > > > >                           OvmsDev at lists.openvehicles.com
> > > > > > > 
> > > > > > >                           http://lists.openvehicles.com/m
> > > > > > > ailman/listinfo/ovmsdev
> > > > > > > 
> > > > > > >                         
> > > > > > >                       
> > > > > > 
> > > > > >                     
> > > > > >                     
> > > > > > 
> > > > > >                   
> > > > > >                   _________________________________________
> > > > > > ______
> > > > > > OvmsDev mailing list
> > > > > > OvmsDev at lists.openvehicles.com
> > > > > > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> > > > > > 
> > > > > >                 
> > > > > 
> > > > >               
> > > > >               _______________________________________________
> > > > > 
> > > > >               OvmsDev mailing list
> > > > > 
> > > > >               OvmsDev at lists.openvehicles.com
> > > > > 
> > > > >               http://lists.openvehicles.com/mailman/listinfo/
> > > > > ovmsdev
> > > > > 
> > > > >             
> > > > >           
> > > > 
> > > >         
> > > >         
> > > > 
> > > >       
> > > >       
> > > > 
> > > >       
> > > >       _______________________________________________
> > > > OvmsDev mailing list
> > > > OvmsDev at lists.openvehicles.com
> > > > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> > > > 
> > > >     
> > > 
> > >     
> > > 
> > >     
> > >   
> > > 
> > > _______________________________________________
> > > OvmsDev mailing list
> > > OvmsDev at lists.openvehicles.com
> > > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> > _______________________________________________
> > OvmsDev mailing list
> > OvmsDev at lists.openvehicles.com
> > http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> 
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.openvehicles.com
> http://lists.openvehicles.com/mailman/listinfo/ovmsdev
> 
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