[App_rpt-users] CTCSS and carrier squelch

Jim Duuuude telesistant at hotmail.com
Sat Mar 6 12:04:59 EST 2010


A reasonable and easy request. I went to great extremes (sarcasm intended)
to make a 1 line change in chan_usbradio to accommodate this need.

A new copy of chan_usbradio.c will be posted to the SVN later today once
Steve gets home and does it. 

It will add the "rxctcssoverride" parameter to usbradio.conf, allowing
the rx CTCSS to default to off. (you have to put "rxctcssoverride = yes"
in the file.

You then specify your CTCSS tones like you would normally (as if you were
going to require them for access), but the receiver will not require any tone
to actually receive.

JIM WB6NIL

----------------------------------------
> From: jann at gmx.de
> To: app_rpt-users at qrvc.com
> Date: Sat, 6 Mar 2010 17:17:19 +0100
> Subject: [App_rpt-users] CTCSS and carrier squelch
>
> Hello,
>
> our repeater is in "carrier squelch"-mode. Since there is much traffic on
> our repeater we are used to use different subtones for different user groups
> just for the initial call to request a group member to continue the qso
> without subtone (so nobody else in the group will be disturbed).
> Unfortunately this seems to be impossible. We tried these configurations in
> usbradio.conf:
>
> #1 (we tried "0" in rxctcssfreqs/txctcssfreqs in CTCSS dsp-mode)
> hdwtype=0
> ;txctcssdefault=71.9
> rxctcssfreqs=0,67.0,71.9,74.4,77.0,79.7,82.5,85.4,88.5,91.5,94.8,97.4,100.0,
> 103.5,107.2,110.9,114.8,118.8,123.0,127.3,131.8,136.5,141.3,146.2,151.4,156.
> 7,162.2,167.9,173.8,179.9,186.2,192.8,203.5,210.7,218.1,225.7,233.6,241.8,25
> 0.3
> txctcssfreqs=0,67.0,71.9,74.4,77.0,79.7,82.5,85.4,88.5,91.5,94.8,97.4,100.0,
> 103.5,107.2,110.9,114.8,118.8,123.0,127.3,131.8,136.5,141.3,146.2,151.4,156.
> 7,162.2,167.9,173.8,179.9,186.2,192.8,203.5,210.7,218.1,225.7,233.6,241.8,25
> 0.3
> carrierfrom=dsp
> ctcssfrom=dsp
> rxdemod=flat
> txprelim=yes
>
> #2 (we tried to disable CTCSS)
> hdwtype=0
> carrierfrom=dsp
> ctcssfrom=no
> rxdemod=flat
> txprelim=yes
>
> Is there a way to pass CTCSS tones through the repeater in "carrier
> squelch"-mode ? I don't care whether it will be decoded/encoded by the
> software or just passed through the repeater (0-300 Hz passthrough).
> Currently passthrough of 0-300 Hz seems to be blocked by the software.
>
> Thanks
> 73,
> Jann
> DG8NGN
>
>
> --
> Jann Traschewski, Drosselstr.1, D-90513 Zirndorf, Germany
> Tel.: +49-911-696971, Mobile: +49-170-1045937, E-Mail: jann at gmx.de
> Ham: DG8NGN / DB0VOX, http://www.qsl.net/dg8ngn, ICQ UIN: 4130182
>
>
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