Re: [Discuss-gnuradio] DOPPLER SHIFT

[ERNEST MATEY]

Hi Marcus and All  Thank you very much for your reply Apart from Gpredict, which other way could I use for doppler shifting for satellite tracking.  Please what do you say about Hamlib?‎  Which other method can I use to control HackRF frequency from satellite tracker on GNUradio?  Best‎ Regards Ernest. Sent from my BlackBerry 10 smartphone. From: Marcus Müller Sent: Friday, March 18, 2016 6:35 PM To: discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] DOPPLER SHIFT Hi Ernest, I saw your first mail, too, but I was really busy at that time. Now, what your error message indicates is that gpredict wasn't properly installed. Not having used that myself, I can't really be of much help, but you should first of all check that if you run a python2 prompt, "import gpredict" doesn't fail with the same error. Best regards, Marcus On 03/18/2016 12:43 PM, ERNEST MATEY wrote: Hi All, I am trying to track Satellite for CW  signal receiving and analysis on my GNURadio.   I know I need some tracking with Doppler shift.  What is the best way to do this? Now, I have GPredict installed hoping to use it.  I have added the GPredict doppler block to my GRC library blocks and added the block to my flow graph hoping to get Doppler shift from my engaged GPredict  I have set my Ports correctly but I have an error. ImportError: No module named gpredict.  What can I do?   I also learnt I can control my receiver ( Hackrf) frequency dir‎ectly from Gpredict using Hamlib. Will this work?   I tried to install Hamlib but installation says will delete some GRC files before Hamlib will work‎. I don't want to temper with my healthy running GRC  What can I do for my Doppler Shift? I am on Ubuntu 14 and I am very new to these thing Thank you for sharing your expertise. God Bless you!   Sent from my BlackBerry 10 smartphone. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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