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SDRplay RSPdx review and interview

Discussion in 'Amateur Radio News' started by VA2PV, Nov 18, 2019.

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  1. VA2PV

    VA2PV Ham Member QRZ Page

    Hello everyone,

    This video is part review of the new SDRplay RSPdx receiver and part interview with SDRplayer Mike Ladd KD2KOG and Jon Hudson G4ABQ. Hope you like the format.

    73 Pascal VA2PV

    KA0IBF, KK4HPY, W4SEX and 2 others like this.
  2. KR3DX

    KR3DX Subscriber QRZ Page

    I watched 5 minutes of "uuummmm..........aaaahhhhhh...........eeeeeerrrrrrrrrrrr..........hhhhhmmmmm........ then I decided NOT to waste another 27 minutes watching the rest of the video. I went to and I read about the improvements in about 1 minute. Here's the text from the website:


    The SDRplay RSPdx is a single-tuner wideband full featured 14-bit SDR which covers the entire RF spectrum from 1kHz to 2GHz giving up to 10MHz of spectrum visibility. It contains three antenna ports, two of which use SMA connectors and operate across the full 1 kHz to 2 GHz range and the third uses a BNC connector which operates up to 200MHz.
    The RSPdx is a replacement for the highly successful RSP2 and RSP2pro SDR receivers, which have been extensively redesigned to provide enhanced performance with additional and improved pre-selection filters, improved intermodulation performance, the addition of a user selectable DAB notch filter and more software selectable attenuation steps . The RSPdx , when used in conjunction with SDRplay’s own SDRuno software, introduces a special HDR (High Dynamic Range) mode for reception within selected bands below 2MHz. HDR mode delivers improved intermodulation performance and fewer spurious responses for those challenging bands.
    W2MIX, WW3JR, KG7HVR and 4 others like this.
  3. K2SDS

    K2SDS XML Subscriber QRZ Page

    I thought it was an informative video.
    Last edited: Nov 19, 2019
    KK4HPY and KN4LGM like this.


    I personally liked it. Learned a lot of useful information.
    VA2PV likes this.
  5. DO8SV

    DO8SV Ham Member QRZ Page

    Honestly, is it really the winner in the new housing because of 1 or 2 filters?
    VA2PV and KE4RWS like this.
  6. KR3DX

    KR3DX Subscriber QRZ Page

    It's more than just 2 filters. They replaced the "Hi-Z" connector (1kHz - 30MHz) with a BNC (1kHz - 200MHz). There are additional AND IMPROVED band-pass filters, a DAB notch filter, improved IMD performance, and more attenuator settings. If you use the SDRuno software, they claim better IMD and fewer spurs below 2MHz. I don't have a new RSPdx with which to do an A/B comparison with my RSP2 Pro, but these appear to be significant, albeit incremental, improvements to an already great product. It's nice to see that the folks at SDRplay are continuing to improve upon the limitations of an SDR receiver. I'd like to see Rob Sherwood do a test on one of these so that their performance could be compared to other radios.
    Last edited: Nov 20, 2019
    K5KNM and VA2PV like this.
  7. SM0FPR

    SM0FPR Ham Member QRZ Page

    Thanks for sparing my time

    //Mats SM0FPR
  8. NB4R

    NB4R Ham Member QRZ Page

    I did notice it's less expensive than the radios it's replacing.
  9. DL4QB

    DL4QB XML Subscriber QRZ Page

    Well...let´s wait for the first comparion with other SDRs....
    It would be great if it was really as good as the advertising promises.

  10. KA0IBF

    KA0IBF Premium Subscriber QRZ Page

    Thank you so much for this great video. I have wanted to get into using a SDR unit of yours - but I am not good with computers. Maybe I will try it because of all the help that is out there. Thanks again Carl KA0IBF
    VA2PV likes this.

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