# View satellite beacon in spectrum analyzer

**URL:** <https://www.ruby-forum.com/t/view-satellite-beacon-in-spectrum-analyzer/232838>\
**Category:** GNU Radio\
**Created:** [October 30, 2014, 4:17pm UTC](https://www.ruby-forum.com/t/view-satellite-beacon-in-spectrum-analyzer/232838 "2014-10-30T16:17:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [October 30, 2014, 4:17pm UTC](https://www.ruby-forum.com/t/view-satellite-beacon-in-spectrum-analyzer/232838/1 "2014-10-30T16:17:59Z")

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Dear Gnu Radioers,

I am trying to follow the advices on Seeber’s presentations  
([http://www.trondeau.com/storage/grcon12/Seeber-BlindSignalAnalysis.pdf](http://www.trondeau.com/storage/grcon12/Seeber-BlindSignalAnalysis.pdf))  
to interpret a satellite signal. I do not have the LNB datasheet, but it  
is the one used for satellite TV in Brazil. This LNB has two outputs and  
I use one for the TV tuner, and with the other one I fed the spectrum  
analyzer, and I got the signal in the picture below. It has signals  
around 1.5 GHz and spaced by approximately 100 MHz. Any hints on how to  
interpret it? I am simply searching for a beacon!!!

Sincerely,  
Pedro Ramos