• [G3XBM] 10m sideband

    From G3XBM via rec.radio.amateur.moderat@21:1/5 to All on Fri May 6 10:24:33 2022
    XPost: rec.radio.amateur.moderated, rec.radio.amateur.equipment, uk.radio.amateur
    XPost: free.uk.amateur-radio

    Roger G3XBM's (Mainly) Amateur Radio Blog

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    10m sideband

    Posted: 06 May 2022 02:34 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/10m-sideband.html


    Before my stroke in 2013, I had an idea for a very simple DSB transceiver
    for 10m.
    This was never competed, but with 10m looking good again, now is an ideal
    time. With just a few watts Europe should be easy and you will work DX.
    Don't forget antennas are small and simple and CB verticals work well.
    What I envisioned was a very simple, easily copied, DSB transceiver on a single, small, PCB. These days a simple phasing SSB rig may be possible
    with a synthesised VFO. This would be better, but the design goals, were simple, low cost and easy.
    This would make a neat club project next winter. Imagine if all builders
    had a simple sideband transceiver for 10m that they built! I should be more than happy for someone to design this and do a PCB. No design rights,
    simple...
    See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/10m-simple-sideband .

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    8m experiment (Friday)

    Posted: 06 May 2022 02:16 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/8m-experiment-friday.html


    Shortly, I shall be back on 8m FT8 TX on 40.680 MHz USB dial. Yesterday was disappointing.
    UPDATE 0917z: My FT8 TX was started at 0813z. EI9KP (649km) has spotted me
    and I have spotted him. This is so regular that I am suspecting aircraft reflection.

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    Sunspots - Friday May 6th 2022

    Posted: 05 May 2022 10:55 PM PDT http://g3xbm-qrp.blogspot.com/2022/05/sunspots-friday-may-6th-2022.html


    Solar flux is 120 and the SSN 85. A=4 and K=0.

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    Rally in Northern Ireland

    Posted: 05 May 2022 06:18 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/rally-in-northern-ireland.html


    The following rally is due to be held on Sunday May 8th. As always in these strange times, I advise checking with the organisers that it is taking
    place.
    Sunday May 8th Lough Erne ARC Annual Rally. Contact alan.r.gault@btinternet.com .

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    IC-705 and FT8?

    Posted: 05 May 2022 01:46 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/ic-705-and-ft8.html


    The ICOM IC-705 is a great 10W radio with many wonderful features. I love
    the waterfall and many of the things it has as standard.
    It is regularly used on 2m and 70cm (FM and USB, but I have not used it on
    FT8. Instead, I have used my FT817ND on 8m and other bands for FT8. Why?
    With the USB lead (even choked) I get desensitisation. I believe the simple solution is to use the IC-705 with wi-fi (yes it has this too!), but I have been too lazy to set this up yet. I am sure there are YouTube videos
    showing how to set this up! One of my projects in the coming weeks must be
    to set this up.
    If you can point me in the right direction this might save me time. What is
    the simplest and clearest please?

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    10m WSPR QRP TX

    Posted: 05 May 2022 06:55 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/10m-wspr-qrp-tx.html


    As the 10m antenna is free, I am on 10m WSPR TX using 500mW from the W5OLF beacon. So far, spots from the Canary Is only at 0833z.
    UPDATE 1355z: 3 unique stations spotting my 500mW with the furthermost TA4/G8SCU (3010km). I suspect these are all single hop F2 propagation.

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    8m experiment (Thursday)

    Posted: 05 May 2022 09:07 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/8m-experiment-thursday.html


    At the moment (0830z), I am again on 8m FT8 TX on 40.680 MHz USB dial. When
    we go for a walk later I shall be RX only. So far, no spots given or
    received.
    UPDATE 1505z: After just over a month, I am already drawing some
    conclusions as follows:
    (1) With my QRP and simple antenna I can work DX by Es, but I think TEP exchanges e.g. with South Africa are beyond me. I estimate my ERP could be
    20dB down on some of the better stations.
    (2) There are far fewer stations active than I was expecting. Is no-one
    really interested?
    (3) I suspect many of those active lose interest once they know their capability. It looks like I shall have FT8 exchanges with Slovenian
    stations, then what?
    UPDATE 1507z: Today I have spotted nobody and nobody has spotted me on 8m FT8. At this rate, especially as OFCOM wants £50 every year, I can see few being interested in the UK. What a great pity.
    UPDATE 1518z: Looks like I shall go QRT on 8m TX after the Es season.
    UPDATE 1607z: Now on 8m FT8 TX (first) on 40.680 USB dial.

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    10m operation

    Posted: 05 May 2022 01:44 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/10m-operation.html


    My favourite band of all is 10m (28 MHz). At 1.7 MHz wide, there is room
    for all modes. Apart from daytime in the better years of the sunspot cycle,
    it is unusual not to find clear frequency. Even with low power and small antennas worldwide DX is possible.
    See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/10m-operation .

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    Sunspots - Thursday May 5th 2022

    Posted: 04 May 2022 11:30 PM PDT http://g3xbm-qrp.blogspot.com/2022/05/sunspots-thursday-may-5th-2022.html


    Solar flux is 130 and the SSN 64. A=6 and K=1.

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    Dayton (USA) Hamvention 2022

    Posted: 04 May 2022 07:48 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/dayton-usa-hamvention-2022.html


    As far as I know this is on as a face-to-face convention later this month
    after a couple of dire Covid years rather getting in the way.
    Often the big manufacturers announce new products here, sometimes well
    before release. I guess they are testing the market interest. It will be interesting to see what is announced. This is an ideal chance for Yaesu to announce a proper successor to the FT817/818 series. The recent offering
    (the FT818) was distinctly underwhelming! With sunspot numbers rising this
    is an ideal time. Or will Yaesu again "miss the boat"?
    This is one of the largest amateur radio gatherings on the planet. I have
    never been.
    See https://hamvention.org/ .

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    2m activity contest (UKAC)

    Posted: 04 May 2022 06:54 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/2m-activity-contest-ukac.html


    Last night was the May 2022 leg of the UKAC activity contest organised by
    the RSGB. In the 50 minutes I was on, I managed 6 QSOs with the furthermost G4RUL/P (172km) on the south coast.


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    Jay, W5OLF?

    Posted: 04 May 2022 06:12 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/jay-w5olf.html


    As regular readers will know, Jay', W5OLFs 10m WSPR beacon is a small stand-alone 500mW WSPR beacon that I have used for many years. It is still
    in use this very minute. With it, I have reached all parts of the planet. Despite writing to Jay some days ago, I have not got a reply. Does anyone
    have any news please?

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    10m QRP WSPR TX

    Posted: 04 May 2022 04:33 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/10m-qrp-wspr-tx_4.html


    At the moment I am again on 10m WSPR TX with the W5OLF 500mW beacon. So
    far, spots from the Canary Is and Turkey.
    UPDATE 1135z: Still the same stations spotting me.

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    Dual band antenna

    Posted: 04 May 2022 01:32 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/dual-band-antenna.html



    This photo appeared as a Facebook memory today. It shows the 10m/6m antenna erected in 2012.
    See https://sites.google.com/view/g3xbm4/home/antennas/homebase10-10m-halo .

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    8m experiment (Wednesday)

    Posted: 04 May 2022 06:19 AM PDT http://g3xbm-qrp.blogspot.com/2022/05/8m-experiment-wednesday.html


    Once again, my intention is to stick with FT8 today on 40.680 MHz USB dial.
    So far, I have been copied in 4 European countries and expect this to
    increase during the Es season.
    The impression I am getting is that other than Es openings my QRP is not capable of being spotted at any distance. Also, I think there are fewer stations with TX permits this year. I was expecting more to be asking for these. Overall, I am a bit disappointed. Other than stations in the UK, Croatia, Slovenia and possibly Eire, I suspect the chances of exchanging
    FT8 reports are small. Once these countries are "worked", I suspect
    interest might wane.
    If I am honest I was expecting stations across Europe to be active this Es season. Sadly, this is not the case.
    Personally I think a very small 8m, digital only, allocation to the amateur service would really help research in radio propagation science. I think
    OFCOM and the RSGB have been totally stupid over their attitude to this!
    You feel that they are not really interested in real self training and research. Talking about gardens and arthritic knees on 80m with Japanese commercial rigs is fine!!
    UPDATE 0835z: For about an hour I have been on 8m FT8 TX. I was spotted
    (yet again) by EI9KP (649km) in the west of Eire. Nobody spotted here,
    although I am currently RX only.
    UPDATE 1320z: No further 8m spots. Currently RX only again.

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    Sunspots - Wednesday May 4th 2022

    Posted: 03 May 2022 11:10 PM PDT http://g3xbm-qrp.blogspot.com/2022/05/sunspots-wednesday-may-4th-2022.html


    Solar flux is 114 and the SSN 53 . A=7 and K=2.

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