well yes, the 1200bps output pin does exactly that, but the 9600 baud pin in 1200 mode is somewhere bizarrely in between.
In fact it should transmit a clean 1k2 signal, but with wrong (flat) frequency response, so decoding it with the normal ham receivers will not be 100% OK... Ralph.
----------------------------------------
From: ralph@radio-link.net To: app_rpt-users@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@gmx.de To: telesistant@hotmail.com; app_rpt-users@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
_______________________________________________ App_rpt-users mailing list App_rpt-users@qrvc.com http://qrvc.com/mailman/listinfo/app_rpt-users
_______________________________________________ App_rpt-users mailing list App_rpt-users@qrvc.com http://qrvc.com/mailman/listinfo/app_rpt-users