Copy abt 50% of your transmission, but its weak and much QRM. Tried replying, but not sure how to "connect". Just replied manually using MultiPSK Andy G4JNT www.g4jnt.com
Has everybody had their 500kHz NoV extensions yet, or am I the only one not to receive it ? Until 23:59:59 2009/02/28 I hope to have the WSPR beacon running each evening and overnight on 503.870kHz 2
According to the WSPR Spot database, there is some "interesting" DX being received chez GM4ISM. Is there some carrier or coherent QRM present to generate these false hits? Just got a WSPR generating
First decode of the evening here. 14 minutes after the first one yesterday. Conditions are much noiser than they were then. Very impulsive broadband noise covering tens of kHz with durations of 10s t
Scott: Its precisely that an LFSR does not give what is needed that made me start thinking along these lines. For one thing, LFSRs are only random if considered over the whole repeat length, viz 2 ^
Having now been encouraged by being decoded now by at least two US stations, was wondering how much improvement in efficiency I could scrape out of my existing antenna. It is a Marconi Tee, the verti
Heavy snow (by our standards!) in S England, so took the opportunity to not bother going into work and to carry on logging. The signal has been pretty consistent at -20dB +/- 4 since switch-on at 064
Not unsurprisingly, nothing heard during the night at the -2dBm RF power level. Just put a 3W amp into circuit to test it - which will explain the few hits now being seen with the 37dB power increase
SRI folks, the 600 Watt PA has now been sold. ...and to the several who asked if it would go at 500kHz, the answer is 'No'. At least as it stood; the transformers would have to be rewound with 3 - 4
I'll be running the WSPR beacon again tonight, from around 1900 UTC - or perhaps a little earlier. Frequency 503.870kHz centre, 33% duty cycle (based on a 32 frame repeat cycle). There's a CW ident a
...but if any mathematicians, number theorists or cryptographers should be reading this... I've just got a WSPR generating routine running on a PIC / AD9852 / GPS combination, but I'm looking for a h
Its going continuously, although I suspect I'll have to turn it off when I'm not around such as weekday day times - unattended beacons are not permitted it seems! Certainly will be going all weeken
If timing slips, the averaged power will be out by the amount of slippage. So, for a 1 second error the total power summed over the window is 4/5, or about 1dB down. For 2.5s slippage, -3dB BUT.
That should have read http://www.g4jnt.com/PCBCN.zip Andy G4JNT www.g4jnt.com 2009/3/17 Andy Talbot <[email protected]> Try http://www.g4jnt.com/beacons.htm and go to PCBCN at the bottom
It is no trouble to continue the transmission. I have set up the equipment in the garage where it does not get in the way of other shack activites, and won't do too much damage if the euipment blows
Nothing happens here - the systems just carries on as usual. Its noticable that during those periods, the signal drops to the daytime groundwave level. Blame the sun :-) Andy G4JNT www.g4jnt.com
Just a reminder to all - this beacon is still going, and will probably continue to do so until further notice. A few listeners have downloaded the software, and thanks to all (you know who your are
