[App_rpt-users] Anyone using MDC1200 for control?

Jim Duuuude telesistant at hotmail.com
Tue Mar 23 15:13:51 EDT 2010


Yes, it makes some output when it happily decodes a unit id

For those wanting extra functionality for "buttons" or whatever
it is your radios are equipped with. If someone could give me
a recording (of the receive input of a receiver listening
to your transmiter) of the output your transmitter as you
press the buttons you are interested in, and then tell me what
you pressed in what order, I could use that recording to do
what I need to do. Probably the best way to accomplish the recording
is to use the URI as a regular sound device (like on a windows machine
or Linux) and use a standard sound recorder program or editor
(like audacity) to make the recording.

Thanks!!

JIM WB6NIL


----------------------------------------
> From: kb2ear at kb2ear.net
> To: app_rpt-users at qrvc.com
> Date: Tue, 23 Mar 2010 11:35:58 -0400
> Subject: Re: [App_rpt-users] Anyone using MDC1200 for control?
>
> So how can you tell if the MDC is decoding? Is there a debug statement?
>
> Scott
> ----- Original Message -----
> From: "KT9AC" 
> To: "app_rpt mailing list" 
> 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
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>
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