[App_rpt-users] Talk-through tone....

Ramesh Dhami (VA3UV) Ramesh at va3uv.com
Sat Oct 27 16:39:48 EDT 2012

Hi Guys;

I have just updated to app_rpt v0.307 from 0.306.

My main motivator was to get rid of the darn squelch crash on my 220 

So, I have added the following 2 COP commands to rpt.conf

882=cop,58              ; talk through tone
883=cop,59              ; normal ctcss

So the cop,58 command works great for LOCAL RF users - no more squelch 
crashes - YEH :)

However, we are not hearing remote activity (from connected links) or 
any 'commanded' telemetry (link status, etc.) - it's all there, but no 
PL is being transmitted.

What am I missing???

Here is my usbradio.conf file contents:

hdwtype=0               ; Leave this set to 0 for USB sound fobs 
modified using
                         ; the instructions from usbfob.pdf. Use a 
setting of
                         ; 1 is for Dingotel/Sph interfaces.


rxboost=0               ; 0 = 20db attenuator inserted, 1= 20db 
attenuator removed
                         ; Set to 1 for additonal gain if using a 
low-level receiver output

rxctcssrelax=1          ; reduce talkoff from radios w/o CTCSS Tx HPF
                         ; Do not change this, leave this as a 1

txctcssdefault=103.5    ; default tx ctcss freq, any frequency permitted
rxctcssfreqs=103.5      ; rx ctcss freqs in floating point. must be in table
txctcssfreqs=103.5      ; tx ctcss freqs, any frequency permitted
;rxctcssoverride=0      ; Set to 1 or yes to start out in carrier 
squelch mode

carrierfrom=dsp         ; no,usb,usbinvert,dsp,vox
                         ; no - no carrier detection at all
                         ; usb - from the COR line on the modified USB 
sound fob
                         ; usbinvert - from the inverted COR line on the 
modified USB sound fob
                         ; dsp - from RX noise using dsp techniques
                         ; vox - voice activated from RX audio

ctcssfrom=dsp           ; no,usb,dsp
                         ; no - CTCSS decoding, system will be carrier 
                         ; usb - CTCSS decoding using input from USB FOB
                         ; (currently not supported)
                         ; dsp - CTCSS decoding using RX audio in DSP.
                         ; rxdemod option must be set to flat for this 
to work.

rxdemod=flat            ; input type from radio: no,speaker,flat
                         ; no - RX audio input not used
                         ; flat - Use RX audio from discriminator 
(before de-emphasis)
                         ; speaker - use de-emphasized audio

txprelim=no             ; Audio processing on left output channel: no,yes
                         ; no - Audio is not pre-emphasized and limited.
                         ; Suitable for use on a microphone input
                         ; yes - Audio is pre-emphasized and limited.
                         ; Suitable for direct connection to an FM modulator

txlimonly=yes           ; Audio limiting with no pre-emphasis on output 
channel: no,yes
                         ; no - Audio is not limited.
                         ; yes - Audio is  limited.
                         ; Suitable for transmitters with no limiting 
but with pre-emphasis.

txtoctype=notone        ; Transmit tone control type: no,phase,notone
                         ; no - CTCSS tone encoding with no hang time
                         ; phase - encode CTCSS and reverse phase
                         ; AKA ("reverse burst") before unkeying TX
                         ; notone - encode CTCSS and stop sending tone 
before unkeying TX
                         ; AKA ("chicken burst")

txmixa=voice            ; Left channel output: 
                         ; no - Do not output anything
                         ; voice - output voice only
                         ; tone - CTCSS tone only
                         ; composite - voice and tone
                         ; auxvoice - auxiliary voice output at 
headphone level for monitoring

txmixb=tone             ; Right channel output: no,voice,tone,composite, 
                         ; See txmixa above.

invertptt=0             ; Invert PTT 0 = ground to transmit, 1 = open to 
                         ; This is the collector lead of the 2n4401 on 
the modified
                         ; usb sound fob.
                         ; please refer to the howto for the procedure 
to do this.

duplex=1                ; Full Duplex

;rxondelay=20           ; Uncomment and/or adjust for simplex nodes to 
eliminate "Ping Ponging"
                         ; or "Relay Racing".
                         ; A positive value here will instruct the 
usbradio driver to ignore the
                         ; COR line for a specified number of 20mSec 
intervals following the
                         ; release of PTT. Use this only on simplex 
nodes, and leave commented
                         ; out for repeaters or other full duplex nodes.



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