[App_rpt-users] Anyone using MDC1200 for control?

KT9AC kt9ac at ameritech.net
Mon Mar 22 20:26:06 EDT 2010


Great! I never expected this so quickly. I'll grab a copy, compile and 
start testing. I'll do my part and try to find online documentation 
about the data layout for MDC.

Tony

Jim Duuuude wrote:
> The new version of app_rpt.c which will be posted on SVN
> this evening contains new code (experimental at this point)
> which allows you to put a '[mdcmacro]' stanza in your rpt.conf file
> where the entries under it are UnitID=DTMF Tones To RUN
>
> So, like:
>
> [mdcmacro]
> d00d=*32000
>
> If you have id d00d, it logs into hub node 2000.
>
> If you send the same ID over and over again, it ignores
> subsequent duplicates.
>
> If someone would find me a full copy of the MDC-1200 command
> set, I sure would appreciate it.
>
> JIM WB6NIL
>
>
>
> ----------------------------------------
>   
>> Date: Mon, 22 Mar 2010 16:44:50 -0500
>> From: w9drr.ham at gmail.com
>> To: kt9ac at ameritech.net
>> CC: app_rpt-users at qrvc.com
>> Subject: Re: [App_rpt-users] Anyone using MDC1200 for control?
>>
>> Wouldn't it be better to use mdc status messages for control? The unit
>> id is sent every transmission.
>> You really wouldn't want a dtmf macro activated every time a unit
>> transmits.. that could be real bad if you slip on the ptt.
>> I can see it would be pretty easily to generate a couple commands by
>> accident. I think MDC status messages are more
>> up that alley.
>>
>> My MDC-1200 biggest wish is an "MDC squelch" that will compare the
>> unit-ID to a list, if in the list allow the audio to repeat.
>>
>> A local ham repeater (fishfar) only allows access based on a known
>> list of Unit IDs.
>>
>> My concept would be status-1 to enable the repeater, status-2 disable,
>> status-3 reboot the server, status-4 enable mdc-squech,
>> status-5 enable pl squelch, status-6 send "ffff" all call. Something
>> like that....
>>
>> It would be really cool if we could also have the ability to generate
>> MDC messages. a command like rpt mdc 2090 ffff which would generate
>> an ffff all call on node 2090 would be really appreciated.
>>
>> Being able to watch the output of the decoder into a log would help
>> find what codes are being seen.
>>
>> In the mean time, I recorded my ht sending the "all call" and play the
>> wav file back. It does activate all the radios each time it's sent.
>>
>> --
>> Don Russell, CBRE
>> W9DRR - ARRL OES, Technical Specialist
>> --
>>
>>
>>
>> On Mon, Mar 22, 2010 at 14:12, KT9AC  wrote:
>>     
>>> Yes, that is correct.
>>>
>>> Jim Duuuude wrote:
>>>       
>>>> okay, What I will do is have a list of "Unit-ID"'s that
>>>> can correspond to DTMF macros. In other words, you
>>>> could make unit ID 1234 be the same as pressing *32000
>>>> or something like that.
>>>>
>>>> Is that pretty much what you had in mind??
>>>>
>>>> JIM WB6NIL
>>>>
>>>> ----------------------------------------
>>>>
>>>>         
>>>>> Date: Mon, 22 Mar 2010 13:42:50 -0500
>>>>> From: kt9ac at ameritech.net
>>>>> To: telesistant at hotmail.com
>>>>> CC: app_rpt-users at qrvc.com
>>>>> Subject: Re: [App_rpt-users] Anyone using MDC1200 for control?
>>>>>
>>>>> Thanks Jim for the reply and interest. Basically I just want to
>>>>> send/decode the Unit ID that will be used as a control function (i.e.
>>>>> macro to connect up to site "X"), activity timer (link transmit
>>>>> authorization) or repeater access control. I like MDC since its a
>>>>> fixed-length packet, has error-correction built-in and once programmed
>>>>> in to a radio mode doesn't require using a DTMF mic while mobile.
>>>>>
>>>>> Tony
>>>>>
>>>>> Jim Duuuude wrote:
>>>>>
>>>>>           
>>>>>> Well, it could very easily. Im game.. (be sure you
>>>>>> pronounce that right) :-). What kind of MDC-1200
>>>>>> message type are you intending use (excuse the
>>>>>> possibility of this being a dumb question, but
>>>>>> the only thing Im familiar with MDC-1200 for is
>>>>>> UnitID).
>>>>>>
>>>>>> JIM WB6NIL
>>>>>>
>>>>>> ----------------------------------------
>>>>>>
>>>>>>
>>>>>>             
>>>>>>> Date: Sat, 20 Mar 2010 20:17:52 -0500
>>>>>>> From: kt9ac at ameritech.net
>>>>>>> To: App_rpt-users at qrvc.com
>>>>>>> Subject: [App_rpt-users] Anyone using MDC1200 for control?
>>>>>>>
>>>>>>> Hi Everyone,
>>>>>>> New to the group and Asterisk; got my first node online today. I know
>>>>>>> there are libraries available from Matthew Kaufman for MDC1200 decoding,
>>>>>>> but haven't ventured into the code just yet. Does anyone have examples
>>>>>>> of what works and how difficult it was? I want to simply send an MDC ID
>>>>>>> into Asterisk to control my links/macros versus DTMF.
>>>>>>>
>>>>>>> Thanks!
>>>>>>> Tony, KT9AC
>>>>>>> _______________________________________________
>>>>>>> App_rpt-users mailing list
>>>>>>> App_rpt-users at qrvc.com
>>>>>>> http://qrvc.com/mailman/listinfo/app_rpt-users
>>>>>>>
>>>>>>>
>>>>>>>               
>>>>         
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>>>       
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