Most days we try to do a short walk.
According to my phone, we have walked 2.68 miles today. On the walk we bumped in to several friends and the rain held of.
We are home again.
7 Oct 2019
Good session on 472kHz WSPR
Overnight was a good session for me on 472kHz WSPR. Running (at most) 10mW ERP from my earth-electrode "antenna" in the ground, I was spotted by quite a few stations (see photo). Notice that LA3EQ (769km) copied me multiple times!
UPDATE 1928z: A couple of spots by stations in the Netherlands this evening, but nothing yet from Norway. I am not sure if LA3EQ is on tonight. As last night, as many stations are spotting me (actually more) than I am spotting others. It suggests my ERP is a bit higher, but measurements suggest not. Perhaps more stations have better RX set-ups?
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472kHz WSPR TX last evening
and overnight (10mW ERP)
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| 472kHz WSPR RX last evening and overnight |
6 Oct 2019
472kHz WSPR
I seem to have better optimised my matching transformer with the S/N being 1dB better on G1GKN who is like a beacon with me. I have been spotted by a couple of new UK stations in the last few hours and it is still daylight.
UPDATE 1843z: Already my 472kHz WSPR (10mW ERP, maybe less!) has been spotted in Norway 3 times and once in The Netherlands.
UPDATE 1843z: Already my 472kHz WSPR (10mW ERP, maybe less!) has been spotted in Norway 3 times and once in The Netherlands.
Miracle Antennas
It is some years since I last used my Miracle Whip. In fact, I am not even sure where it is! These days there are commercial alternatives as the original inventor became a SK in 2012. Now, please do not expect miracles from any of these. As I have said many times, a 56 inch whip can only be as good as a 56 inch whip, but with a counterpoise or ground they can work reasonably well on the higher HF bands. In their favour, they are small and convenient.
See https://sites.google.com/site/g3xbmqrp3/antennas/mwhip
See https://sites.google.com/site/g3xbmqrp3/antennas/mwhip
Labels:
antenna,
miracle whip
472kHz ERP
Despite having redone the calculations, I still cannot get a sensible figure.
All my sums seem to give me figures well below 10mW ERP, even if I assume the effective loop area is much bigger than I expected.
Now, it is entirely possible that I have made an error, but if the ERP is greater than 10mW I shall be very surprised. Perhaps I should take another look tomorrow.
All my sums seem to give me figures well below 10mW ERP, even if I assume the effective loop area is much bigger than I expected.
Now, it is entirely possible that I have made an error, but if the ERP is greater than 10mW I shall be very surprised. Perhaps I should take another look tomorrow.
Labels:
472khz
ON4KST chat
This is a useful resource for arranging skeds and seeing what is happening on various bands. As often happens, I forgot my password so requested a new one. Nothing received.
So I tried re-registering. Again nothing received. I checked the SPAM folder - nothing.
Crap. I give up.
So I tried re-registering. Again nothing received. I checked the SPAM folder - nothing.
Crap. I give up.
Labels:
on4kst
472kHz WSPR - no TX
For reasons I do not understand, it appears that my WSJT-X software decided to disable TX on 472kHz WSPR. I think this may have been the case for several hours. I manually enabled it again a few minutes ago. No reports resulted though!
G1GKN on 472kHz WSPR
G1GKN seems to be always copied. I am intrigued why the S/N is better now than earlier. It could be for several reasons. Has my noise floor dropped? I don't think so. Has the path loss dropped? I don't think so. Is he running more ERP? Not according to the WSPR database. Mystery.
New Beofeng 10W handie
My friend Steve G1KQH has sent me a link for a new 10W Beofeng handheld transceiver. How do they do it for the price?
See https://www.banggood.com/Baofeng-UV-9R-Plus-10W-Upgrade-Version-Two-Way-Radio-VHF-UHF-Walkie-Talkie-for-CB-Ham-AU-Plug-p-1402512.html?p=1T122389680562017027&custlinkid=588363&ID=43101&cur_warehouse=CN
See https://www.banggood.com/Baofeng-UV-9R-Plus-10W-Upgrade-Version-Two-Way-Radio-VHF-UHF-Walkie-Talkie-for-CB-Ham-AU-Plug-p-1402512.html?p=1T122389680562017027&custlinkid=588363&ID=43101&cur_warehouse=CN
Labels:
beofeng
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