Hi Markus,
Yes, Jay picked it. A good surprise.
OP32 is about 100 Hz lower in frequency, maybe this is more promising
;-)
About the reactive load: If i just run half of the antenna current, the
PA has no problems. BTW i somehow feel that the MOSEFTs become better
by the time, they somehow know now what they have to do (frequency,
di/dt, peak current...) :-)
73, Stefan
Am 21.08.2014 04:30, schrieb Markus Vester:
Stefan,
ah, that explains it! I was wondering
why your fieldstrength had dropped after you went up the
band, thinking that my RX calibration had somehow gone haywire. Hope
your PA doesn't mind the reactive load! Maybe you could temporarily
reduce the coil inductance by half a percent, eg. by inducing eddy
currents in a metal sheet beneath it. Or (perhaps less lossy) insert an
80 nF series capacitor.
Anyway it looks like Jay has picked up your
"QRP" signal already!
73, Markus
Sent: Thursday, August 21, 2014 1:30 AM
Subject: Re: LF: Re: Anyone there?
Thanks Mike.
Obviously my TX power is about 6 dB lower because of a temporary
metallic construction near the antenna, which brings my variometer to
the lower end, i.e. the maximum resonance frequency below 137.610
kHz. :-(
Thus my DFCW is not affected but WSPR-15 is QRP as you can see :-( Good
luck anyway :-)
73, Stefan
Am 21.08.2014 00:22, schrieb Michael Sapp:
Stefan: I'll put 2200m wspr15 RX
on after local sunset here in EN90xn...
73, Mike wa3tts
-----
Original Message -----
Sent:
Wednesday, August 20, 2014 6:08 PM
Subject:
Re: LF: Re: Anyone there?
Hi all,
I've just started my WSPR-15 transmissions for this night but was a few
seconds to late. So the first slot will be 22:30 UTC.
Will someone join to LF?
73, Stefan (operator DWS) ;-)
Am 20.08.2014 23:19, schrieb Markus Vester:
Dave, following your notice I
reactivated the WSPR-15 receiver, though I have little hope of catching
Robert's signal in my noisy location. But Tom 'HUH appeared on screen
so the setup still seems to work.
Jay, yes I've made a habit of looking at your LF grabber,
and noticed that you've been picking up Stefan's transmissions quite
well. The weather is now getting a bit more quiet here with less
thunder, so I hope to join in again soon.
Thanks both for your replies!
73, Markus
Sent: Wednesday, August 20, 2014 10:00 PM
Subject: LF: Re: Anyone there?
Markus
I'm still here ...
Yes, I've been keeping an eye
out for Stefan when he fires up 'Deutschland World
Service' and broadcasts in time slots favorable to the west ;~)
Jay
-----
Original Message -----
Sent:
Wednesday, August 20, 2014 3:42 PM
Subject:
LF: Anyone there?
...no
mails for a couple of days - just the usual summer hole, or has
Blacksheep gone offline?
Nice DFCW
activity from DK7FC every evening, apparently aiming for Tasmania
again. Bombastic signal, as always :-)
Wishing
everyone a nice summer,
73, Markus
(DF6NM)
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