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Dimitri Stolnikov horiz0n at gmx.netHi James, On Sun, 18 Nov 2012 05:40:55 +0100, James Peroulas <james at peroulas.com> wrote: > Hi! I just released a major update to the LTE code. There's a new program > called LTE-Tracker that camps on a certain frequency and tracks, any LTE > cells that it finds. > > Interesting features (all are in realtime): > > - You can see cells popping in and dropping off as the receiver is > moved > around the coverage area of the different cells. > - You can see the actual transfer function of the wireless channel > plotted on the screen. > > I've also made a small change to CellSearch so that now, it also displays > the number of antennas (ports) on the basestation. Cool! > > Please let me know of any comments or suggestions! I had to apply the attached patch for it to compile on my machine. Unfortunately i wasn't able to test the tools, as both of them segfaulted in xc_peak_freq? Backtrace fragment attached. LTE Tracker v1.0.0 (release) beginning Search frequency: 1815 MHz PPM: 120 correction: 1 Found Elonics E4000 tuner Calibrating local oscillator. Segmentation fault LTE CellSearch v1.0.0 (release) beginning Search frequency: 1815 MHz PPM: 120 correction: 1 Found Elonics E4000 tuner Examining center frequency 1815 MHz ... Segmentation fault The old copy of commit ef8474ed5d9213c494e8e17b8436208a04844b1a works just fine at the same time: C: CP type ; P: PHICH duration ; PR: PHICH resource type CID fc foff RXPWR C nRB P PR CrystalCorrectionFactor 262 1815M 595h -24.6 N 100 N one 1.0000447970890209426 263 1815M 595h -25.3 N 100 N one 1.0000447969528891701 Also, i noticed that you calculate the expected tuning frequency for e4k tuners in order to make your calculations more exact. Can you tell us which tuning errors you get from the e4k driver usually and how this affects your application? > > http://www.evrytania.com/lte-tools/lte-tracker Nice documentation & videos! Linked the page on the rtl-sdr wiki. Best regards, Dimitri -------------- next part -------------- A non-text attachment was scrubbed... Name: lte-tools.patch Type: text/x-diff Size: 792 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20121118/dbc8aa35/attachment.bin> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: cellscan-segfault.txt URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20121118/dbc8aa35/attachment.txt>