Message-ID: <1232134087.4970dfc7cee7f@imp.netikka.net>
Date: Fri, 16 Jan 2009 21:28:07 +0200
From: Paul-Henrik <phl@netikka.fi>
To: rsgb_lf_group@blacksheep.org
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Subject: LF: QRG & MSG UPDATE: 136kHz test from OH1LSQ
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LF, Hello!

Many thanks to all that have reported and suggested so far. I will reply to=20=
you
later. I'm busy setting up and perfecting things at the moment :)

New QRG as suggested by Jim: 136.35kHz
New MSG to aid FFT reception: Id "VVV DE OH1LSQ OH1LSQ" in 12WPM + 2 9s dash=
es
(TT in QRSS3). Cycle runs once a minute.

When I'm confident the PSU makes it like this I can raise the odds by sendin=
g
full callsign in QRSS3.

Paul-Henrik / OH1LSQ


Quoting Paul-Henrik <phl@netikka.fi>:

> LF, transmitting now. CW on 136.40kHz.
>
> Quoting Paul-Henrik <phl@netikka.fi>:
>
> > LF, Hello all!
> >
> > I plan to run a test transmission on 136kHz during Friday, Saturday and
> > Sunday
> > night. The setup is very preliminary/temporary and can not be left
> unattended
> > for longer periods. The unprotected ATU has to be brought indoors when n=
ot
> in
> > use. We expect cold dry weather for the weekend so it should survive whi=
le
> in
> > use. The estimated ERP based on tests made yesterday is only 20mW. This
> > figure
> > does not include absorption in nearby objects.
> >
> > Initially the transmission will be CW only but QRSS3 with CW ID will fol=
low
> > as
> > soon as I have the ON7YD keyer software and interface set up.
> >
> > Antenna: Inverted-L 15m high with 35m horizontal wire. 20 radials 5-25m
> long,
> > half of them terminated in 0.5m deep earth rods. Rtot estimated to rough=
ly
> > 100ohms.
> > ATU: Variometer + large loading coil
> > TX: Keyed 1W 50ohm DDS signal generator feeding a pair of parallell 807'=
s
> in
> > class AB1 trough a wideband 1:5 voltage stepup transformer providing 80V=
p-p
> > for
> > the control grids. Classic parallel tuned tank with adjustable coupling
> coil.
> > Power output is measured to 65W at 810V/150mA on the plates.
> >
> > Unless I receive other suggestions for the QRG that will enable QRM-free
> QRSS
> > reception for interested stations the frequency will be 136.40kHz.
> >
> > I can not receive on 136kHz during this test. I will inform when QRV/QRT=
.
> >
> >
> > Best regards
> >
> > Paul-Henrik / OH1LSQ
> > Vaasa / KP03SD
> >
> >
> >
> >
> >
> >
>
>
>
>
>