Search found 3 matches

by stillrolling
Fri Jan 24, 2020 11:22 am
Forum: Off-Topic
Topic: Low Level Information sadly lacking
Replies: 3
Views: 1313

Re: Low Level Information sadly lacking

This is an excellent book for learning DSP from the ground up and it's free! http://www.dspguide.com/ As for 'low level interfacing', it's a bog-standard USB device driver written in C, nothing particularily obscure. If you want to write software around an RTL dongle, you should be looking at GNU-Ra...
by stillrolling
Wed Oct 16, 2019 3:17 pm
Forum: Other SDR Devices
Topic: Weird MSI.SDR QRM issue
Replies: 2
Views: 1754

Re: Weird MSI.SDR QRM issue

Got the other laptop, hooked up a regular dongle.

https://youtu.be/PTJM_hiNKdE

Definitely the LO frequency that's being transmitted and for a fair distance too. Both antennas were about 7 feet apart.

Weirdly only seems to happen between ~430MHz and ~1100MHz.
by stillrolling
Wed Oct 16, 2019 2:10 pm
Forum: Other SDR Devices
Topic: Weird MSI.SDR QRM issue
Replies: 2
Views: 1754

Weird MSI.SDR QRM issue

Hi guys, sorry for the vague title, not entirely sure how to term what's going on. Bought an MSI.SDR dongle via Aliexpress after seeing some positive hubbub about it. Been playing around with it today however to discover that the LO (I think) is putting out some serious interference when an antenna ...