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  • [G3XBM] Sound powered TX

    From G3XBM via rec.radio.amateur.moderat@21:1/5 to All on Tue Nov 16 01:49:56 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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    Sound powered TX

    Posted: 15 Nov 2021 05:30 AM PST http://g3xbm-qrp.blogspot.com/2021/11/sound-powered-tx.html


    Looking back on my emails I see some correspondence from Michael Rainey
    AA1TJ about a sound powered CW TX he built. I think Michael's TX involved converting sound from his voice into CW RF. I have seen other circuits that convert the action of pressing the Morse key into RF. In theory, this would also work with speech. Of course, physics dictates that low milliwatts only
    can be achieved.
    If you know of ideas, please let me know.

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    Getting thinner?

    Posted: 15 Nov 2021 01:57 PM PST http://g3xbm-qrp.blogspot.com/2021/11/getting-thinner.html


    Through the post today I got my monthly copy of Practical Wireless. It
    seems a lot thinner. To my mind this says one thing: they are in trouble
    and are trying to save money.
    Not looked inside yet. It may be fewer adverts or fewer articles or both.
    I have been a faithful subscriber for many years, but may stop.
    In Rob Mannion's day I wrote articles for PW.
    How much longer will it continue?
    UPDATE 1700z: I am puzzled. Several issues have had a similar number of
    pages, yet it feels noticeably thinner to me. Is it thinner paper?
    UPDATE 2156z: It has been this thin for several months, although this is
    the first time I have noticed.

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    10m FT8 RX (Monday)

    Posted: 15 Nov 2021 01:58 PM PST http://g3xbm-qrp.blogspot.com/2021/11/10m-ft8-rx-monday_15.html


    A few minutes ago, I turned on my 10m FT8 system. So far (at 1137z) 2
    stations spotted.
    UPDATE 1340z: 19 stations spotted on 10m FT8 RX with the furthermost
    ZS4JAN (9386km).
    UPDATE 2147z: 64 stations spotted today on 10m FT8 RX. QRT soon.
    UPDATE 2158z: QRT.

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    Sunspots - Monday November 15th 2021

    Posted: 15 Nov 2021 01:13 AM PST http://g3xbm-qrp.blogspot.com/2021/11/sunspots-monday-november-15th-2021.html


    Solar flux is 78 and the SSN 23. A=4 and K=1.

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