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<p>Hi Bill and Max --<br>
<br>
I'm a little confused where the frequency is set. Are you putting the <br>
control channel frequency on the command line with "-f", and then 0 in <br>
trunk.tsv, or the other way around?<br>
<br>
I'm still struggling to get things running here.<br>
<br>
Thanks,<br>
John<br>
----<br>
<br>
On 07/05/2017 07:35 PM, 'wa8wg' wa8wg@centurytel.net [op25-dev] wrote:<br>
> Max,<br>
> <br>
> I now have excellent audio using netcat & aplay with the zero center <br>
> frequency in trunk.tsv and the sampling rate –S 1000000 in the rx.py <br>
> command line. Still no sign though of sockaudio ever starting up.<br>
> <br>
> Thank you!<br>
> <br>
> Bill<br>
> <br>
> William G. Becks, WA8WG<br>
> <br>
> N7027 Shady Lane Circle<br>
> <br>
> Porterfield, WI 54159<br>
> <br>
> Telephone: 715.735.0131<br>
> <br>
> E-Mail: wa8wg@centurytel.net <mailto:wa8wg@centurytel.net><br>
> <br>
> *From:*op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com]<br>
> *Sent:* Wednesday, July 5, 2017 6:24 PM<br>
> *To:* op25-dev@yahoogroups.com<br>
> *Subject:* RE: [op25-dev] Re: sockaudio.py startup?<br>
> <br>
> Disregard my previous message. I had to reinitialize the SDR and <br>
> rx.py now loads with a zero center frequency in trunk.tsv using the <br>
> lower sample rate as suggested.<br>
> <br>
> Bill<br>
> <br>
> William G. Becks, WA8WG<br>
> <br>
> N7027 Shady Lane Circle<br>
> <br>
> Porterfield, WI 54159<br>
> <br>
> Telephone: 715.735.0131<br>
> <br>
> E-Mail: wa8wg@centurytel.net <mailto:wa8wg@centurytel.net><br>
> <br>
> *From:*op25-dev@yahoogroups.com <mailto:op25-dev@yahoogroups.com> <br>
> [mailto:op25-dev@yahoogroups.com]<br>
> *Sent:* Wednesday, July 5, 2017 6:08 PM<br>
> *To:* op25-dev@yahoogroups.com <mailto:op25-dev@yahoogroups.com><br>
> *Subject:* RE: [op25-dev] Re: sockaudio.py startup?<br>
> <br>
> I tried setting the center frequency to zero in my trunk.tsv and turning <br>
> the sampling rate down but rx.py doesn’t like the zero center <br>
> frequency. See below. Where can I download the patched version that <br>
> allows a zero center frequency statement?<br>
> <br>
> *pi@raspberrypi:~/op25/op25/gr-op25_repeater/apps $ ./rx.sh*<br>
> <br>
> *linux; GNU C++ version 4.9.1; Boost_105500; UHD_003.007.003-0-unknown*<br>
> <br>
> **<br>
> <br>
> *setting gain lna to 49*<br>
> <br>
> *set_center_freq: 0*<br>
> <br>
> *./rx.sh: line 2: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 3: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 4: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 5: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 6: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 7: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 8: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 9: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 10: $'\r': command not found*<br>
> <br>
> *./rx.sh: line 11: $'\r': command not found*<br>
> <br>
> *pi@raspberrypi:~/op25/op25/gr-op25_repeater/apps $*<br>
> <br>
> Thank you,<br>
> <br>
> Bill<br>
> <br>
> William G. Becks, WA8WG<br>
> <br>
> N7027 Shady Lane Circle<br>
> <br>
> Porterfield, WI 54159<br>
> <br>
> E-Mail: wa8wg@centurytel.net <mailto:wa8wg@centurytel.net><br>
> <br>
> *From:*op25-dev@yahoogroups.com <mailto:op25-dev@yahoogroups.com> <br>
> [mailto:op25-dev@yahoogroups.com]<br>
> *Sent:* Wednesday, July 5, 2017 4:03 PM<br>
> *To:* op25-dev@yahoogroups.com <mailto:op25-dev@yahoogroups.com><br>
> *Subject:* RE: [op25-dev] Re: sockaudio.py startup?<br>
> <br>
> yes, though it depends on whether a center frequency has been <br>
> specified. If so then OP25 remains tuned to the center frequency and if <br>
> not, it retunes the SDR each time a frequency change is needed. From <br>
> what I've seen the slow sample rate (250,000) on the PI causes the <br>
> changes to be somewhat slow, so I was getting the first word(s) of calls <br>
> chopped off. Currently (for the PI) we recommend -S 1000000 and setting <br>
> the center frequency to zero, or omitting it. Another user reported <br>
> getting a crash with this, and a possible workaround for it has just <br>
> been pushed to the repo.... It should be possible to set the center <br>
> frequency to zero. When this is done the trunk-tracking mode should <br>
> work fine no matter how wide the system is, but it does preclude the use <br>
> of the log-all-talkgroups-to-disk mode, unfortunately...<br>
> <br>
> Max<br>
> <br>
> <br>
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