WSPR 4.0 (Beta release)

This is a beta release of WSPR (version 4.0). It has worked fine for me.

This is the version I currently use on all bands. Unfortunately, it does not have the real-time waterfall. You see the action only after a 2 minute TX period and not during the transmission as was the case for WSPRX.

The interface looks very similar to WSPR V2.2.

Please let me, and others, know if there are more recent releases by adding a comment and link.

Roger Lapthorn, G3XBM, is a regular contributor to and writes from Cambridge, England.

3 Responses to “WSPR 4.0 (Beta release)”

  • VA3ROM, Robert:


    I use Spectran to create a real-time waterfall for digital modes programs which don’t have one built-in. Others use Spectrum Lab or Argo, et al.


  • Jon Ove, la3jj:

    Bad thing is it doesn’t tx in I/Q mode. On my Ensemble txrx 2.21 works fine, but 4.0 will not work. 4.0 is good for using with plain audio rigs and for rx only in I/Q mode.

  • Peter, vk5pj:

    Looks nice but each time it goes to TX it just crashes for me, all my version of 2.21 work well but this one does not like my PC.

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