3 - Measure the amplitude of the TX DC offset as received by the RX (in
this case at -1 MHz). Iteratively adjust your I TX DC offset number
until you get to the lowest power you can see. Then do the same for Q.
If it still isn't low enough, do I again.
Matt
Hi Matt,
Are the settings for the I and Q adjustments independent or do I have to
iterate between them for the lowest error?
Also if I am sending a 0 amplitude signal can I simply AM detect the received
signal to measure the dc error value?
Finally what is the simplest way to synchronise receive, so I can
make sure I am associating a particular DC offset error with a corrected
transmitted block?
I can see the carrier going up and down on the Analyser but my
routine comes up with some silly values. I think it is because I have
the routine out of sync.
Sorry for the dumb questions :-)
- Charles
setup WBX, USRP2, UHD
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