PhantomSDR Support Forum

General Category => PhantomSDR Software => Topic started by: ihweb on Jan 02, 2025, 11:36 AM

Title: rx888 frequency offset
Post by: ihweb on Jan 02, 2025, 11:36 AM
Hi everyone, I can now start the rx888, but when I use the standard 10Mhz signal input, I find that the frequency is offset by 10346.88. How can I calibrate this?
Title: Re: rx888 frequency offset
Post by: magicint1337 on Jan 02, 2025, 11:56 AM
Probably wrong sample rate a bit?
Title: Re: rx888 frequency offset
Post by: ihweb on Jan 03, 2025, 12:41 AM
rx888_stream -f ./rx888_stream/SDDC_FX3.img -s 58000000 -g 90 -m low -d --pga -o - | build/spectrumserver --config config-RX888.toml
Title: Re: rx888 frequency offset
Post by: Emmanuel SV1BTL on Jan 03, 2025, 08:43 AM
Quote from: ihweb on Jan 03, 2025, 12:41 AMrx888_stream -f ./rx888_stream/SDDC_FX3.img -s 58000000 -g 90 -m low -d --pga -o - | build/spectrumserver --config config-RX888.toml

Try 60000000 instead of 58000000. The same in .toml
Title: Re: rx888 frequency offset
Post by: ihweb on Jan 06, 2025, 08:14 AM
Thanks for reply, I have set it according to 60000000 sampling, and it works now.