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Can you adjust the spectrum analyzer range?
Posted: Sun Jun 28, 2015 3:30 am
by wegunterjr
Right now the spectrum analyzer is 60MHz, but it starts at zero...can we get ranges more like 2.4Ghz...we would like to use it to check out how the spectrum looks around our plant (we are away from town, but having issues with our spectrum).
Re: Can you adjust the spectrum analyzer range?
Posted: Sun Jun 28, 2015 7:07 am
by pavel
Two possible solutions for looking at higher frequencies were posted by mrxfm in the "SDR (Software Defined Radio) Transceiver" thread of this forum:
viewtopic.php?f=11&t=265&start=10#p1563
According to
the ADC documentation, its bandwidth is 750 MHz.
Looks like the only possible solution to look at 2.4 GHz with the Red Pitaya board is to use an external down-converter from 2.4 GHz to 0-60 MHz.
However, taking into account that there are already SDR transceivers that are designed to work at the GHz frequencies such as USRP B200, bladeRF x40, HackRF, UmTRX, I don't think that building any down-converter for the Red Pitaya board is a good idea.
Here is a link to an article comparing several SDR transceivers working at the GHz frequencies:
http://www.taylorkillian.com/2013/08/sd ... -usrp.html