EI4HQ

Radio Experimenter


Latest

  • EI4HQ NAVTEX Spectrograms for 2026-07 (July)

    , ,

    Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during July 2026. I started saving these in June 2026. Spectra for previous months are available on the NAVTEX page. Each spectrogram covers a 16h 44m period, that being the length of the longest night…

  • LW 198kHz BBC Radio 4 Shutdown

    ,

    Audio recording of the last Shipping Forecast to go out on BBC Radio 4 LW 198kHz on 26th June 2026 at 2348utc. It’s preceeded by “Sailing By” the iconic tune that’s long been played immediately before the late-night Shipping Forecast broadcast. SDR Video of the BBC 4 Radio Continuity Announcers’ farewell to LW 198kHz. Audio…

  • EI4HQ NAVTEX Spectrograms for 2026-06 (June)

    , ,

    Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m…

  • The End Fed Half Wave Antenna

    , , ,

    My trusty 20M GP antenna, is a much-loved and proven favourite for operations away from the home QTH. Recent experience has made clear however that It’s not ideal for POTA, SOTA and other short term /P activations. It’s relatively heavy at about 2kgs, and it takes about 15 minutes to set up. Of course, it’s…

  • POTA Activation at IE-0016

    , ,

    It was beautiful out this morning and being a Saturday, what else was I going to do but head out for a few hours to do another POTA activation. This time it was to another local wood, about half an hour from home. Ballanyannan is a beautiful and old deciduous forest that dates back to…