• [G3XBM] Backscatter compendium

    From G3XBM via rec.radio.amateur.moderat@21:1/5 to All on Wed Jun 30 11:55:55 2021
    XPost: rec.radio.amateur.moderated, rec.radio.amateur.dx, uk.radio.amateur XPost: free.uk.amateur-radio

    Roger G3XBM's (Mainly) Amateur Radio Blog

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    Backscatter compendium

    Posted: 28 Jun 2021 07:14 AM PDT http://g3xbm-qrp.blogspot.com/2021/06/backscatter-compendium.html


    The microwave bands are an area of amateur radio that I have never got seriously interested in, although we can only do so much I guess. Quite a
    few people are doing ATV at 5.6GHz using low cost modules.
    Years ago I bought the "Backscatter compendium". This is now available free
    to download.
    See https://www.microwavers.org/backscatter.htm .

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    30THz tests

    Posted: 28 Jun 2021 02:21 PM PDT http://g3xbm-qrp.blogspot.com/2021/06/30thz-tests.html


    Working on optical frequencies at 481THz seems easier!




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    PFX Manual

    Posted: 28 Jun 2021 03:40 AM PDT http://g3xbm-qrp.blogspot.com/2021/06/pfx-manual.html


    Years ago, I worked on the Pye PFX. An old friend has just pointed me to
    a PFX service manual for sale on eBay. https://www.ebay.co.uk/itm/Pye-PFX-Pocketfone-VHF-UHF-FM-Transceiver-Reference-35-06-2021-/133800248662?_trksid=p2349624.m46890.l49286
    I have just spotted that it was my personal copy with my name on it!
    No, I shall not be bidding, HI.
    The PFX was widely used by the UK police and some were used on 70cm. It was
    the first synthesised portable Pye Telecom ever made. It had a few false starts, but was very successful in the end. The PF85 was a crystal
    controlled handheld using many of the same modules.

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    10m FT8 RX with the indoor loop

    Posted: 28 Jun 2021 08:45 AM PDT http://g3xbm-qrp.blogspot.com/2021/06/10m-ft8-rx-with-indoor-loop.html


    At about 0750z, I turned on the 10m FT8 RX with the 50cm diameter indoor
    loop. So far, 2 Iberian spots on RX.
    UPDATE 1022z: Now 30 stations spotted on RX with furthermost 5T5PA
    (3791km).
    UPDATE 1142z: 59 stations spotted on RX.
    UPDATE 1545z: 86 stations spotted today on 10m FT8 RX.

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    Sunspots - Monday June 28th 2021

    Posted: 27 Jun 2021 11:13 PM PDT http://g3xbm-qrp.blogspot.com/2021/06/sunspots-monday-june-28th-2021.html


    Solar flux is 87 and the SSN 32. A=4 and K=0.

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