# No Carrier Squelch Mode

**URL:** <https://community.allstarlink.org/t/no-carrier-squelch-mode/7935>\
**Category:** AllStarLink\
**Created:** [August 19, 2009, 10:09pm UTC](https://community.allstarlink.org/t/no-carrier-squelch-mode/7935 "2009-08-19T22:09:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tim\_Sawyer](https://community.allstarlink.org/letter_avatar_proxy/v4/letter/t/bc79bd/32.png) [@Tim\_Sawyer](https://community.allstarlink.org/u/Tim_Sawyer)\
**Post date:** [August 19, 2009, 10:09pm UTC](https://community.allstarlink.org/t/no-carrier-squelch-mode/7935/1 "2009-08-19T22:09:49Z")

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I am attempting to get carrier squelch mode to work. The relevant parts of my usbradio.conf are shown below. Even with this configuration the repeater is always in P/L decode mode. I know for sure there is not a P/L decoder in the repeater. Any ideas?

txctcssdefault=100.0 ; default tx ctcss freq, any frequency permitted  
rxctcssfreqs=100.0 ; rx ctcss freqs in floating point. must be in table  
txctcssfreqs=100.0 ; tx ctcss freqs, any frequency permitted  
carrierfrom=usb ; no,usb,usbinvert,dsp,vox  
ctcssfrom=no ; no,usb,dsp  
rxdemod=speaker ; input type from radio: no,speaker,flat

> **···**
>
> --  
> Tim, WD6AWP  
> :wq

---

<div class="post-metadata">

**Author:** ![Sales1](https://community.allstarlink.org/letter_avatar_proxy/v4/letter/s/ed655f/32.png) [@Sales1](https://community.allstarlink.org/u/Sales1)\
**Post date:** [August 20, 2009, 1:38am UTC](https://community.allstarlink.org/t/no-carrier-squelch-mode/7935/2 "2009-08-20T01:38:54Z")

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Tim Sawyer wrote:

> I am attempting to get carrier squelch mode to work. The relevant  
> parts of my usbradio.conf are shown below. Even with this  
> configuration the repeater is always in P/L decode mode. I know for  
> sure there is not a P/L decoder in the repeater. Any ideas?
> 
> txctcssdefault=100.0 ; default tx ctcss freq, any frequency permitted  
> rxctcssfreqs=100.0 ; rx ctcss freqs in floating point. must be in  
> table  
> txctcssfreqs=100.0 ; tx ctcss freqs, any frequency permitted  
> carrierfrom=usb ; no,usb,usbinvert,dsp,vox  
> ctcssfrom=no ; no,usb,dsp  
> rxdemod=speaker ; input type from radio: no,speaker,flat
> 
> --  
> Tim, WD6AWP  
> :wq
> 
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_  
> App\_rpt-users mailing list  
> App\_rpt-users@qrvc.com  
> [http://qrvc.com/mailman/listinfo/app\_rpt-users](http://qrvc.com/mailman/listinfo/app_rpt-users)

Yes, there's an annoying issue with CTCSS which needs to be fixed.

Comment out the rxctcssfreqs and txctcssfreqs entries and it should  
start working.

This issue logged in Mantis.

Steve  
WA6ZFT