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Sdr Guru sdrguru1 at gmail.comHi rtl-sdr-relay Some of the recommendations. Please add PPM error calculation, exactly like new rtl_test -p but multiple receivers simultaneously. It provides immediate information if something is wrong with USB or dongles. https://github.com/keenerd/rtl-sdr/commit/b5f89dcf40463130e717b6c9bb3a39a3c8b9535f https://github.com/keenerd/rtl-sdr/blob/master/src/rtl_test.c Please add automatic eeprom PPM calibration https://github.com/keenerd/rtl-sdr/commit/ecf267737ca52f5005b7a12a352307e8cd763ed6 default sample rate 2.4M (28.8/12) or 1.2M (28.8/24), probably lower jitter MAX_NUM_DEV 4->16 :) Some nice to have features. ip binding multicast support one common (interleaved) stream of all the receivers timestamped stream I'm trying to convert MATLAB script to Ocatve. SG On Mon, Dec 30, 2013 at 9:38 AM, Jiao Xianjun <putaoshu at gmail.com> wrote: > Hi guys, > > For the multiple dongles synchronization in signal level instead of > bits/packets level, I setup a working repo in github, and write a initial > demo framework. See below: > > https://github.com/JiaoXianjun/multi-rtl-sdr-udp-relay.git > > You may find information and instruction of demo quickly by reading the > README. > > My initial purpose is performing in-fly calibration for multiple dongles > according to some pre-known signal (GSM, ADS-B?) to let them work together > coherently. > > An ideal scheme may be that we should generate a very narrow band and very > week signal in (or just located at the edge of) target working band of > dongles, and perform the software in-fly calibration in background (or > driver level). This would be user friendly. > > I know it is far from final state currently, and many things are not clear > yet (See TODO). But please join me if you also think this is a good idea. > Just check out the demo and run it to have a look. > > Currently I just test the demo in Ubuntu-Linux. > > BR > > Jiao Xianjun > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/osmocom-sdr/attachments/20140101/2954f804/attachment.htm>