LF, Hello!
Thanks for reporting me too Mal!
The new message includes full callsign in QRSS3 to enable ID reception for those
seeing my dashes. Will run like this if the PSU doesn't overheat.
I did not expect results like this with such a low ERP, hence the step-by-step
perfection of the system. Thanks to all that have picked up the challenge!
73's
Paul-Henrik / OH1LSQ
Vaasa / KP03SD
Quoting Paul-Henrik <[email protected]>:
> LF, Hello!
>
> Many thanks to all that have reported and suggested so far. I will reply to
> 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
> dashes
> (TT in QRSS3). Cycle runs once a minute.
>
> When I'm confident the PSU makes it like this I can raise the odds by sending
> full callsign in QRSS3.
>
> Paul-Henrik / OH1LSQ
>
>
> Quoting Paul-Henrik <[email protected]>:
>
> > LF, transmitting now. CW on 136.40kHz.
> >
> > Quoting Paul-Henrik <[email protected]>:
> >
> > > 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
> not
> > in
> > > use. We expect cold dry weather for the weekend so it should survive
> while
> > 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
> follow
> > > 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
> roughly
> > > 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
> 80Vp-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
> > >
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
>
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