IQ Sampling without antenna array

RE: IQ Sampling without antenna array

mariakenneth — Thu, 06 Mar 2025 07:06:15 GMT

Interesting challenge with IQ sampling! It seems like you're navigating some complex settings here. If only there were an iq test free of these technical hurdles to clarify the sampling process! Good luck with your adjustments!

RE: IQ Sampling without antenna array

Simonr — Fri, 03 Mar 2023 07:56:59 GMT

Some input from one of our developers working on the Direction Finding features:

It's possible to do IQ samples with the manual setup from the Direction Finding whitepaper. If you use a single antenna, it should already skip using the reference, sample and switch periods and only take samples.

The guard period can not be disabled, but it is possible to use proprietary configuration for TSAMPLESPACINGREF and TSAMPLESPACING. They also can setup TSWITCHSPACING to 8us to make the radio attempt to switch antennas not so often.

Best regards,

Simon

RE: IQ Sampling without antenna array

Simonr — Thu, 02 Mar 2023 12:05:45 GMT

I don't think you'll be able to disable the switching periods etc. while using the Direction Finding sample applications like this, but I have asked the developers internally if they have any clever ideas to purely maximize the number of IQ samples you can achieve.

AFAIK the only documentation we have on doing this manually is the Direction Finding whitepaper that shows you how to set up every part of IQ sampling separately, so if you set up IQ sampling without antenna switching from scratch that would be my guess as to what the best procedure forward would be. I'll let you know if I hear anything from the developers on the matter.

Best regards,
Simon