Anyone using a SDR RSP1B for the radio?

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gwynethh
Posts: 29
Joined: Sat Aug 09, 2025 4:53 pm

Anyone using a SDR RSP1B for the radio?

Post by gwynethh »

I was not happy with the sensitivity of the RTL SDR and thought I would try the RSP1B from SDR Play. First install did not work with Hudiy (no tuning, same as with no SDR present test). I then installed SDR play's app thinking bookworm needed a driver. Sadly I messed up the SDRConnect install by activating the server option so the bookworm desktop app does not work. I will do a complete Bookworm/SDRConnect/Hudiy reinstall but wanted to check if anyone has tried RSP1B and what if any issues you had. TIA (dangerous noob on the loose).
alex124.rh
Posts: 125
Joined: Thu Jul 31, 2025 9:18 am

Re: Anyone using a SDR RSP1B for the radio?

Post by alex124.rh »

hi there, just wondering what issues you find with the RTL SDR as i’ve never used it. any advice you have is great thanks
gwynethh
Posts: 29
Joined: Sat Aug 09, 2025 4:53 pm

Re: Anyone using a SDR RSP1B for the radio?

Post by gwynethh »

I thought its signal sensitivity was poor and I live many miles between two big radio markets.
hudiy
Site Admin
Posts: 440
Joined: Mon Jul 14, 2025 7:42 pm

Re: Anyone using a SDR RSP1B for the radio?

Post by hudiy »

You can check the gain configuration in main_configuration.json - https://github.com/wiboma/hudiy/blob/ma ... md#fmradio. Hudiy allows you to manually set the gain value for the RTL-SDR dongle.

A list of supported gain levels can be obtained using the rtl_test command. You can then set the total value ( * 10) in main_configuration.json (the algorithm will select the closest value supported by the dongle).

For example:

Code: Select all

$ rtl_test
Found 1 device(s):
  0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Detached kernel driver
Found Rafael Micro R820T tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6 
main_configuration.json

Code: Select all

"fmRadio": {
    ...
    "autoGain": false,
    "gain": 496,
    ...
}
After changing the gain level, you should also increase the squelch (used when scanning radio stations). It is best to adjust squelch values by trial and error to ensure the scanner doesn't pick up noise, but also doesn't miss stations with slightly weaker reception.

You can also find universal radio signal boosters on the internet, for example: https://aliexpress.com/item/1005007170039079.html
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