[App_rpt-users] Re Kenwood Remote TRX

Jim Duuuude telesistant at hotmail.com
Wed Mar 17 11:16:21 EDT 2010


well yes, the 1200bps output pin does exactly that, but
the 9600 baud pin in 1200 mode is somewhere bizarrely
in between.

----------------------------------------
> From: ralph at radio-link.net
> To: app_rpt-users at qrvc.com
> Date: Wed, 17 Mar 2010 16:13:36 +0100
> Subject: Re: [App_rpt-users] Re Kenwood Remote TRX
>
>> Well, sorry but *WRONG!!!*. 1200 packet mode rolls off the
>> low side of the audio spectrum and makes CTCSS decoding completely
>> impossible.
>
> This should be normal behaviour, as 1k2 packet is AFSK/FFSK and relies on
> normal audio path, with pre/deemphasis and 300-3000 Hz AF filtering for best
> performance.
>
> Ralph.
>
>> JIM
>>
>>
>> ----------------------------------------
>>> From: jann at gmx.de
>>> To: telesistant at hotmail.com; app_rpt-users at qrvc.com
>>> Subject: Re [App_rpt-users] Kenwood Remote TRX
>>> Date: Wed, 17 Mar 2010 15:06:05 +0100
>>>
>>> Hello Jim,
>>>
>>>> Yep 9600 baud packet mode is
>>>> perfict. You will need to feed the URI output through the 2X
>>>> amplifier since the Kenwood takes boat-loads of audio to
>>>> modulate it properly.
>>>
>>> I checked the TM-D700 manual:
>>> "Output of detected 9600 bps data (500 mVP-P, 10 kOhm) -> Also
>> functions as
>>> a common pin for 1200 bps and 9600 bps data output."
>>>
>>> RX seems the same as for 9600 baud packet mode. For TX i tried
>> 1200 bps with
>>> a low setting of "txvoice" (radio tune txvoice 100). Seems to
>> be another way
>>> without using the amplifier + txboost=1. Or am I wrong?
>>>
>>>> Set carrier detect and rxctcss to dsp
>>>> and txmixa to voice. The radio makes its own CTCSS on transmit.
>>>
>>> Yep, it works fine with iaxRpt for Windows. How can I change the inital
>>> frequency 146.580 MHz to another one? It is not a frequency for
>> hamradio in
>>> germany. I found 146.580 MHz in app_rpt.c, but I hope there is
>> another way
>>> to change it ;)
>>>
>>> Thanks!
>>> 73,
>>> Jann
>>>
>>
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>
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