Extremes in WSPR on 40 meter What about making no miles? Huh? What about DX with 0,000 Watt QRPpp Or what about QRO? 1000Watt! Or what about working the other side of the globe?
1000W on WSPR?? That is Crazy!! I usually run about 1 watt on that mode. I am not an a total QRP man as I have a linear in the shack here and can run around 350watts, but its not often I do that. In any case that guy must have a BIG amplifier and a big electricity bill :)
The spots of EA5CV are very interesting. He use 5 watts and is received with a SNR of -10 at (05:18 UTC) With a SNR of -10 his signal is 20 dB stronger than the minimal SNR of -33. So he could use 20 dB less power at that moment. He would still be received just above the noise at 50 mW. SNR would be -30 (hi) QRSS and QRPp is an excellent combination. ;-) Bert PA1B
The person running 60dBm needs to understand that nothing is proved by using this sort of power. It is possible he meant 60W, but even that is excessive.
Extremes in WSPR on 40 meter
Hi Paul,
ReplyDelete1000W on WSPR?? That is Crazy!! I usually run about 1 watt on that mode. I am not an a total QRP man as I have a linear in the shack here and can run around 350watts, but its not often I do that.
In any case that guy must have a BIG amplifier and a big electricity bill :)
73 Kevin
Hi Kevin, indeed, it is unbelievable. 1 watt will do on WSPR. ;-)
ReplyDeletePaul, zou het echt zo zijn? Of zou het station in kwestie z'n dB's niet goed hebben staan. We zullen het nooit weten. 73, Bas
ReplyDeleteHello Paul,
ReplyDeleteThe spots of EA5CV are very interesting. He use 5 watts and is received with a SNR of -10 at (05:18 UTC) With a SNR of -10 his signal is 20 dB stronger than the minimal SNR of -33.
So he could use 20 dB less power at that moment.
He would still be received just above the noise at 50 mW. SNR would be -30 (hi)
QRSS and QRPp is an excellent combination. ;-)
Bert PA1B
Hi Paul,
ReplyDeleteHB9OAB and HB9AFZ are in the same Grid, so the distance is calculated as 0 km.
Bert PA1B
Hallo Bas: dat zou kunnen, dat sluit ik niet uit. 73 Paul
ReplyDeleteHallo Bert: check. ;-) 73 Paul
ReplyDeleteThe person running 60dBm needs to understand that nothing is proved by using this sort of power. It is possible he meant 60W, but even that is excessive.
ReplyDeleteTo: Bert PA1B
ReplyDeleteYou are right!!, if I did not had been sleeping at that time I would test for less pw.
Yes! here a newbie on WSPR and QRp, sorry for any mistakes... I´am learning pse. be patient!,hi,hi
Paul-PC4T, congratulations for that nice blog.
73,s Maxi
EA5CV
Hello Maxi, thank you for the compliments, success with WSPR and our great hobby! 73 Paul
ReplyDelete