[arm-allstar] Notice - Intent to remove remote base rig control

[WB4BXO]

Doug and David, thanks for looking into this...

The computer connection to the TM-271A and TM-281A are mostly for making setup easier but the protocol supports enough commands to fully control the radios. I use the radios for frequency agile remote bases as well as for linking for SkyWarn nets and the like. With the RC-210 you can pretty completely control the radio. The interface is via a TTL level async UART connection to the mic connector of the radio. The RC-210 has async pins that are TTL level for doing this. From other devices or PCs you can use RS-232/TTL converters or a USB UART with TTL levels. Point is, it's a standard 9600 baud async signal using TTL levels (or may be 19.2K, can't remember right now, but a standard one).

I have sniffed the line and gotten most of the commands in the past , it's pure ASCII if I remember correctly. I don't know if they are the same commands as some of the other Kenwood models or not. It is not exactly the same as a TM-V71 that I have also used but there may be some common commands with the differences related to dual vs single band. I was just hoping someone might already know if it was common with some particular other model. 

If no one else has determined this I may just pull down the source for hamlib and chirp and do a comparison of the protocols they are using. If I come up with something I'll pass it on and/or look into adding it into hamlib and pushing it back for others to use.

... and thanks for all you do with the Hamvoip Allstar system, it certainly makes things easier!

Steve Mobley - WB4BXO
http://www.stevemobley.com

--- Hello, I am an iApp-oholic...


On Apr 4, 2018, at 12:40 AM, Doug Crompton via arm-allstar <arm-allstar at hamvoip.org> wrote:

Steve,

 I have no first hand knowledge of this so I am wondering how the 271A and
281A are controlled with the RC210. From what I can gather in looking here -

https://www.manualslib.com/manual/1277049/Arcom-Rc210.html?page=16

it can only change memory channels that are already programmed into the
radio. Is this correct? It looks like it does it via the mic jack?

I spoke with Dave about this and he thinks that there is an interface that
can be built between the radio and controller which could be the Pii.  It
is probably a serial stream with maybe a strobe that is applied at the
microphone and really just simulates what the microphone buttons can
already do.

I am thinking out loud here but it might very well be that hamlib is not
even needed and the Pi GPIO could directly control the radio.

We need to find more info on the commands and data that is sent to the
radio. The MCP-1A programming package does a similar thing.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


On Tue, Apr 3, 2018 at 3:56 PM, "Steve Mobley - WB4BXO via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Does anyone know if Hamlib will control a Kenwood TM-271a or TM-281a? It
> is not listed in the supported radios but may be the same as another model.
> I use these radios for link radios on several sites currently using an
> RC-210 controller but want to switch to letting the RPi running AllStar
> control them and may need to rethink that in light of this if Hamlib will
> not control them.
> 
> Steve Mobley - WB4BXO
> --- hello, I am an iApp-oholic...
> 
>> On Mar 30, 2018, at 3:27 PM, Doug Crompton via arm-allstar <
> arm-allstar at hamvoip.org> wrote:
>> 
>> We would like to remove and replace the old outdated remote base rig
>> control code from the hamvoip distribution. This has been replaced by the
>> much more capable and better documented hamlib code which is part of the
>> distribution. We would like to do this as soon as possible so if this
> would
>> have an impact on anyone please let us know.
>> 
>> The database for the old code is very outdated and supports or minimally
>> supports few radios made in the last 10-15 years. Hamlib is constantly
>> being updated and as these updates occur they will be part of the hamvoip
>> distribution.
>> 
>> When this happens the current code would be replaced with a standard
>> interface to the hamlib tools.
>> 
>> 
>> *73 Doug*
>> 
>> *WA3DSP*
>> 
>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>> _______________________________________________
>> 
>> arm-allstar mailing list
>> arm-allstar at hamvoip.org
>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>> 
>> Visit the BBB and RPi2/3 web page - http://hamvoip.org
> 
> _______________________________________________
> 
> arm-allstar mailing list
> arm-allstar at hamvoip.org
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> 
> Visit the BBB and RPi2/3 web page - http://hamvoip.org
> 
_______________________________________________

arm-allstar mailing list
arm-allstar at hamvoip.org
http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar

Visit the BBB and RPi2/3 web page - http://hamvoip.org