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  • [G3XBM] Amplitude Modulation

    From G3XBM via rec.radio.amateur.moderat@21:1/5 to All on Wed Apr 28 08:36:04 2021
    XPost: rec.radio.amateur.moderated, uk.radio.amateur, free.uk.amateur-radio

    Roger G3XBM's (Mainly) Amateur Radio Blog

    ///////////////////////////////////////////
    Amplitude Modulation

    Posted: 27 Apr 2021 07:17 AM PDT http://g3xbm-qrp.blogspot.com/2021/04/amplitude-modulation.html


    Although I have not used AM recently, partly as a result of my poor voice,
    I can see the attraction of the mode. It lends itself to home brewing and
    in the past I have designed and made several AM rigs. At one time they were practically giving away ex PMR AM rigs.
    The Fredbox and Sixbox are examples of AM rigs I have designed and made in
    the past.
    Southgate News has announced the formation of an AM Amateur Radio Society.
    See http://www.southgatearc.org/news/2021/april/announcing-the-formation-of-the-amplitude-modulation-amateur-radio-society.htm#.YIgZpGjYrrd .
    My thanks to Steve G1KQH for pointing this out.

    ///////////////////////////////////////////
    10m FT8 RX

    Posted: 27 Apr 2021 11:03 AM PDT http://g3xbm-qrp.blogspot.com/2021/04/10m-ft8-rx_27.html


    My 10FT8R RX (homemade) for 10m FT8 RX was turned on at 0739z with the
    indoor loop. Later today I hope to create a schematic for this 4 transistor
    RX, which works well.
    UPDATE 1540z: No spots.
    UPDATE 1700z: Just 1 spot so far - G4NBS (22km). I notice David G0LRD has spotted 67 stations today on 10m FT8.

    ///////////////////////////////////////////
    70cm activity contest (UKAC) published

    Posted: 27 Apr 2021 12:02 AM PDT http://g3xbm-qrp.blogspot.com/2021/04/70cm-activity-contest-ukac-published.html


    The RSGB has published the results of the April 2021 contest. Despite
    limited time, limited power and just a 2m omni antenna, I have climbed in
    the results. I only come on for the fun and never expect to do anything!
    See https://www.rsgbcc.org/cgi-bin/vhfresults.pl?Contest=432MHz%20UKAC&year=2021 .

    ///////////////////////////////////////////
    OFCOM spectrum auction final results

    Posted: 26 Apr 2021 11:57 PM PDT http://g3xbm-qrp.blogspot.com/2021/04/ofcom-spectrum-auction-final-results.html


    OFCOM has announced the final results of recent auctions of 700MHz and
    3.6GHz spectrum. See the OFCOM website for details.

    ///////////////////////////////////////////
    Sunspots - Tuesday April 27th 2021

    Posted: 26 Apr 2021 10:36 PM PDT http://g3xbm-qrp.blogspot.com/2021/04/sunspots-tuesday-april-27th-2021.html


    Solar flux is 80 and the SSN 54. A=14 and K=3.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
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