[App_rpt-users] Anyone using MDC1200 for control?

Scott Weis kb2ear at kb2ear.net
Tue Mar 23 11:35:58 EDT 2010


So how can you tell if the MDC is decoding? Is there a debug statement?

Scott
----- Original Message ----- 
From: "KT9AC" <kt9ac at ameritech.net>
To: "app_rpt mailing list" <app_rpt-users at qrvc.com>
Sent: Monday, March 22, 2010 8:26 PM
Subject: Re: [App_rpt-users] Anyone using MDC1200 for control?


> 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
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>
>>>> _______________________________________________
>>>> App_rpt-users mailing list
>>>> App_rpt-users at qrvc.com
>>>> http://qrvc.com/mailman/listinfo/app_rpt-users
>>>>
>>>>
>>> _______________________________________________
>>> App_rpt-users mailing list
>>> App_rpt-users at qrvc.com
>>> http://qrvc.com/mailman/listinfo/app_rpt-users
>>>
>>
>>
> _______________________________________________
> App_rpt-users mailing list
> App_rpt-users at qrvc.com
> http://qrvc.com/mailman/listinfo/app_rpt-users
>
> 





More information about the App_rpt-users mailing list