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From: | Ralph A. Schmid, dk5ras |
Subject: | Re: [Discuss-gnuradio] Need help identifying jammer signal |
Date: | Wed, 18 Dec 2013 09:18:59 +0100 |
Thanks for the follow-up, this is similar to a 1 second noise burst every 60 seconds or so we had on our ham repeater. The reason could be identified after months of search by coincidence. The repeater sysop visited his fathers office, monitored the input frequency of the repeater like he had done routinely for months to hear exactly nothing – but there it was, some wideband noise pulse! 100 m from this office a paging system for a facility management team was sitting on a tower, not actively used for years, still transmitting its beacon every minute, and with age the TX started emitting noise along with its POCSAG signal. Gnuradio also would have been useful in our case, but it was way before we knew of this exciting stuff :)
From: address@hidden [mailto:address@hidden On Behalf Of Juha Vierinen Last Friday we managed to finally track this thing down. It was a broken FSK telemetry system on an FM radio tower. It was about 30 km Southwest of our radar. I did a small write up about this: Thanks for all the help. juha On Wed, Dec 11, 2013 at 4:34 PM, Johnathan Corgan <address@hidden> wrote: On 12/10/2013 02:00 PM, Miki Lustig - KK6GEO wrote: Sure, I see what you mean.
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