Please Help. GQRX and SDR-RTL V3 for HF reception

Main forum to discuss RTL-SDR related topics.
Post Reply
cu2ij
Posts: 2
Joined: Wed Jan 16, 2019 9:52 pm

Please Help. GQRX and SDR-RTL V3 for HF reception

Post by cu2ij » Wed Jan 16, 2019 10:03 pm

Hello

Can you please show a step by step configuration for GQRX in Manjaro linux with the SDR-RTL V3 for HF reception?

In configure I/O devices, the most apropriate device seams Realtek RTL2838UHIDIR SN 00..1.
Also tryed Device "Other".

Device String, RTL=0 and input rate 1800000. I have recption only from 24MHz up. The program does not allow lower frequencyes.

I also tryed "rtl=0,direct_samp=2", but results were the same.

Thank you

Luis
CU2IJ

rtlsdrblog
Site Admin
Posts: 2219
Joined: Mon Nov 19, 2012 11:54 pm

Re: Please Help. GQRX and SDR-RTL V3 for HF reception

Post by rtlsdrblog » Thu Jan 17, 2019 12:08 am

Can you try "rtl=0,direct_samp=3" ?

It depends on what drivers you have installed. Some of them use "3" for some reason.

Also make sure that "No limits" in GQRX is checked.

RCND
Posts: 17
Joined: Mon Dec 10, 2018 3:41 am

Re: Please Help. GQRX and SDR-RTL V3 for HF reception

Post by RCND » Thu Jan 17, 2019 3:17 am

Hello:

Have you run the volk_profile in the terminal? This optimizes the Gqrx software.

For HF use, other, and then the rtl=0,direct_samp=2 or the rtl=0,direct_samp=3 string.

Should work then.
Last edited by RCND on Fri Jan 18, 2019 12:27 am, edited 2 times in total.

cu2ij
Posts: 2
Joined: Wed Jan 16, 2019 9:52 pm

Re: Please Help. GQRX and SDR-RTL V3 for HF reception

Post by cu2ij » Thu Jan 17, 2019 9:40 pm

Thank you both,
rtl=0,direct_samp=3 has done the trick.
Best regards

Luis

Post Reply