From: darksidelemm Date: Sat, 24 Jun 2017 09:54:40 +0000 (+0000) Subject: Some tweaks to readme X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=710e6e8448baf8587262af0984b7b44c3cc0beb4;p=freetel-svn-tracking.git Some tweaks to readme git-svn-id: https://svn.code.sf.net/p/freetel/code@3247 01035d8c-6547-0410-b346-abe4f91aad63 --- diff --git a/misc/lilacsat1/README.txt b/misc/lilacsat1/README.txt index fdfb88b1..b1d71846 100644 --- a/misc/lilacsat1/README.txt +++ b/misc/lilacsat1/README.txt @@ -51,12 +51,16 @@ Running + To power your LNA from your RTL-SDR see screenshots/enable_bias_t.png + Up top, look for settings icon. Make sure RX port set to 7356 + Up top, make sure little 'Remote control via TCP' icon is selected (2 computers icon) + + On 'Input Controls' tab, adjust Freq. Correction value as required. + + A good idea would be to transmit a CQ signal from a 'known good' transmitter, and adjust the ppm value + until the carrier is where it should be on the waterfall display. + In receiver options tab (on the right) set Mode to USB + Drag passband indication above waterfall so filter width is maybe 30 kHz wide. + Bottom right, click "..." Network tab, set UDP port to 7355, hostname to localhost + Suggest setting the 'main' audio output to a dummy audio device, you don't want to hear the modem signal really. + Click 'UDP' to have it start sending samples out via UDP port. + + Optionally, click 'Rec' to record the modem signal to disk (useful for later debugging) 4/ In a new Terminal start gpredict @@ -68,10 +72,12 @@ Running + Set port to 7356, hostname of localhost + Back on gpredict main window, top right look for down arrow, go to Radio control + Choose LilacSat-1 in target dropdown - + Set downlink freequency to 436.499.000 Hz + + Change downlink frequency from 436.510.000 Hz to 436.498.000 Hz (need a 12 kHz IF signal) + Choose gqrx from radio list, set cycle to 5000, + Click 'engage' then click 'track' + You should now see gqrx's frequency adjusting every 5 seconds. + + Once you start seeing the downlink signal, you may need to adjust the 'nominal' downlink frequency so it sits at + 12 kHz within the SSB passband. Build/Test Tips ---------------