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:VLUAAOxy0zhTMhWZ 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 > [email protected] > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev > _______________________________________________ HackRF-dev mailing list [email protected] https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
