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  • [EI7GL] Did a VHF APRS signal cross the North Atlantic on the 17th of A

    From EI7GL via rec.radio.amateur.moderat@21:1/5 to All on Sun Apr 18 14:46:35 2021
    XPost: rec.radio.amateur.moderated

    EI7GL....A diary of amateur radio activity

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    Did a VHF APRS signal cross the North Atlantic on the 17th of Apr 2021? (Spoiler-Probably not)

    Posted: 18 Apr 2021 01:12 AM PDT https://ei7gl.blogspot.com/2021/04/did-vhf-aprs-signal-cross-north.html


    The Ham Radio Concepts Facebook page put this image up on Saturday the 17th
    of April with the comment... 'Wow! Is this a computer glitch? A transcontinental band opening on VHF?'

    I've edited the image to remove the parts of the map which aren't of
    interest and left the important parts.
    The Facebook post was put up around 17:00 UTC on Saturday the 17th of
    April. Other than that, we don't have any other info to go on.
    Who? What? Where? When?... Other than the time stamp on the image which may
    not be UTC, we have no other info. Was it a 144 MHz FM APRS signal? What
    was heard? Who heard it? When was it heard? Is it even real?
    I looked at the mennolink website but couldn't really get any further. I'm posting it here so that others can investigate if they want to.
    I looked at the F5LEN tropo forecast website and it does show some
    enhancement in the Atlantic for large parts of the path but that in itself proves nothing.
    Until such time as there is some actual real data, I'd be inclined to write
    it off as a non-event.
    Links...
    1) http://aprs.mennolink.org/
    2) https://aprs.fi

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    Modest Sporadic-E on 28 MHz for the 3rd day in a row - 17th April 2021

    Posted: 17 Apr 2021 11:41 PM PDT https://ei7gl.blogspot.com/2021/04/modest-sporadic-e-on-28-mhz-for-3rd-day.html





    Saturday the 17th of April 2021 was the third day in a row where there was
    a modest Sporadic-E opening on 28 MHz. The main Sp-E opening was again to
    the Iberian Peninsula with some F2 propagation as well to South Africa, St Helena and South America.
    According to the PSK Reporter website, I heard 108 stations in 20 countries.
    I think it's safe to say that the Summer Sporadic-E season for the Northern Hemisphere has started.

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