Dear Andy, John, LF Group, Yes, Chas, G3DXZ suddenly appeared on the WSPR frequency in CW, so we QSYed a bit for a contact - I'll probably recover, given time! The WSPR beacon is back on again now. C
Hello Mike, LF This is precisely why I thought it might be instructive to report TX power! In the above example, of an inefficient antenna and 800W vs an efficient antenna and 100W for the same ERP,
Graham, LF, I do agree that ERP is more meaningful & as Mal & Andy stated it is the criteria with which the licence is approved. My comment was to follow the WSPR recommended method as adopting ERP w
Yes that funny mode is 559 up here using the mk1 lug 'an' speaker ! G .. Jim is 10 - 11dB SNR apart from the transmission at 1622 when there was a dropout of some kind in his signal Was about to say
Gary I got a decode at 192600 15 -11 0.5 -98 0 G4WGT 1083 27 I hope this helps mal/g3kev LF, Regarding my WSPR settings, the power is not a correct evaluation at the moment. My Tx power is about 5 wa
Mal, LF, Thanks for the report Mal. The best I can make of the ERP with the antenna current right at the bottom of the meter scale, antenna dimensions & the ERP spread sheet is 2 mW ERP. It has to be
This does not follow. On the HF bands the ERP is close to RF power, especially on the bands where WSPR is popular, and can therefore be used a a rough approximation. That is most certainly not the ca
Dear Dave, LF Group, Many thanks to everyone who listened for the WSPR beacons and for all the reports. Over the last few weeks, 50 or so stations have copied the beacons, in about 14 different count
Jim If you want a laugh ,re stability - check out the posting of the spectrum plot on 4 mtrs when I was testing with Gary .. transverters are 'not' quite as stable as you would like .. but the wspr s
Gary, I don't think a guard band is really needed as if you set the centre carrier frequency to 503.9 , then operating at the extreme edges is not really possible, you're right on the edge of the wat
Jim is 10 - 11dB SNR apart from the transmission at 1622 when there was a dropout of some kind in his signal Was about to say there's QRM on Jims signal (at 1639z), but its that funny on-off mode, de
Hi John, LF, You wrote :- As to power reporting, I see that most people on LF/MF are attempting to estimate ERP, and use this figure in the beacon data. This aspect of power reporting method has been
Is there some sort of unofficial bandplan on this band? I'm rather late coming on to it having only got the NoV last week, and haven't followed the reflector over the last year or two (microwaves wer
In a MAN'S world its ERP that counts, it is more meaningful for LF/MF and it complies with the licence criteria. g3kev I disagree - ERP is the licenced figure, and its what really matters in the prop
Gary, Well that's a interesting point ,the data so far is that :- Operators with correctly fabricated engineering elegant antenna systems and modest power levels have in fact crossed the Atlantic wit
Dear LF Group The M0BMU WSPR Beacon went QRT at about 1000utc - thanks for all the reports. Best DX of the night was of course from WD2XSH/17 at 5245km, according to my software - thanks, Dave. Also
Hi All, In agreement with John & Graham, I believe that makes sense. The top part of the band is probably the least used area so we just need to agree on a 200Hz slot of either 503.800 to 504.000KHz
