Dear All,
I use HackRF one with telescopic antenna. I used gr-gsm to see GSM packets but I am not able to. I got following error : http://imgur.com/U3egNra Attached the video scanning of GSM in Singapore. https://sendvid.com/gxjm5yrb Please advise me. Regards Srinivasan T -----Original Message----- From: Cinaed Simson [mailto:[email protected]] Sent: Monday, 21 December 2015 11:36 AM To: Srinivasan T; [email protected] Subject: Re: [Hackrf-dev] info on GSM On 12/20/2015 03:11 AM, Srinivasan T wrote: > Hi There, > > > telescopic antenna > I have HackRf with telescopic antenna. If it's ANT500 telescopic antenna it has a frequency of 75-500 MHz - roughly 500 MHz fully collapsed. > > How do I see GSM signals ? > My GSM signals were in the 800 MHz band. I picked up a log periodic antenna on Ebay - sold by the guy who gave a presentation at DEFCON22 on how to choose an antenna <http://www.ebay.com/itm/Cellular-Zboost-Log-Periodic-Yagi-Antenna-CANT-0041 -GSM-LTE-Verizon-AT-T-Wilson-/381271094632?hash=item58c5873568:g:VLUAAOxy0zh TMhWZ> http://www.ebay.com/itm/Cellular-Zboost-Log-Periodic-Yagi-Antenna-CANT-0041- GSM-LTE-Verizon-AT-T-Wilson-/381271094632?hash=item58c5873568:g:VLUAAOxy0zhT MhWZ I use the log periodic antenna indoors. Made a small 24 inch stand out of PVC pipe and picked up 20 feet of LMR400 cable so I could move it away from computer equipment and point it in different directions. Then I downloaded gr-gsm from github and installed it on pentoo, and using gnuradio, fired gr-gsm. > > I have seen few videos but all of them using dongle base. > They only need 1 MHz of bandwidth - I believe the GSM signal they're looking at has a bandwidth of around 200 kHz. > > Please advise. > > > > Regards > > > > Srinivasan T > > > > _______________________________________________ > HackRF-dev mailing list > <mailto:[email protected]> [email protected] > <https://pairlist9.pair.net/mailman/listinfo/hackrf-dev> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev >
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