VK2RH ham radio

Category: WSPR

  • K3 and digital modes

    Using WSJT-X as my example digital program, here are the steps to getting digital modes to work with the K3 using an external sound card, the ASUS U7. The process is almost identical to the one I use with the KX3, an external soundcard dongle and a MacBook Pro. First, it is simple and easy…

  • The book I’d like written/to write about FT8, WSPR & other digital modes

    I’ve spent the last couple of weeks spending some continuous and focused time finally getting some consistent results out of my radios using digital modes, especially WSPR and JT8 using WSJT-X. Like everything else I do with ham radio, they reveal the woeful inadequacy of my antennas here. In fact, one of the benefits of…

  • Back in the loop

    My main project for at least the last 12 months has been building a solid magnetic loop antenna and its companion automatic loop controller. I’ve been roughly tracking its progress at my magnetic loop antenna project page on this blog. As usual, life has got in the way, but I want to get back on track and…

  • And they’re racing!

    Interesting thread on the softrock40 email list about how easy it is these days to get a good sense of how well your station and the ionosphere are performing in an almost ‘hands-free’ way. Increasingly modes like WSPR and tools like SDR have enabled us to let the radio do its thing and in a short amount…

  • WSPR

    Prompted by Julian G4ILO’s musings about the possibility of volcanic ash being responsible for propagation he observed a few days back, I’ve been looking deeper into WSPR, the application that produced the data that inspired the notion. First stop was the main WSJT site where Princeton physicist Joe Taylor K1JT outlines the application along with other weak…

  • Joe Taylor K1JT presentation on WSJT-X

    Joe Taylor, K1JT gave a 75 minute long presentation on WSJT-X at the recent MicroHams Digital Conference in Redmond Washington in mid March. This link takes you to the section within the full day’s 8 hours and 21 minutes long recording. This link takes you to a version edited by Budd, WB7FHC of the same talk. During the presentation,…