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Original Message -----
Sent:
Wednesday, September 05, 2012 9:17 PM
Subject:
LF: Re: Re: Re: MF CW QSO
Mal, tks for the QSO.
I have a massive carrier here spot
on 501 which is making any reception on adjacent freqs v difficult.
Rx is a Redifon R408 with good MF
sensitivity and excellent vbl bandwith filters but even then it was
difficult to separate your sigs out.
The QSO was a bit tricky because I
had to swap the Ae over between Tx & Rx.
Also, I had no sidetone just the
clunk of the key and subsequent relays.
RST was nearer 229.
Source
is a Marconi Marine Oceanspan 7 Tx.
The Tx is xtal controlled but has
a LC osc as reserve in case the 500kHz Xtal goes down.
I have tweaked it up to 501.
Unfortunately the HT supply to the
osc is not sufficiently stabilised so I am surprised you gave me T=9
despite the distinct birdie tone!.
The Tx has 3 x 807s in the
finals running 800V at 80mA into an impressive variometer.
I am putting out abt 2 amps of RF into a LW
Ae.
More work will be required to get a good
stable signal out on 472 when we get it.
Rgds
Bruce GW4XXF
-----
Original Message -----
Sent:
Wednesday, September 05, 2012 9:40 PM
Subject:
LF: Re: Re: MF CW QSO
Cannot hear u
mal/g3kev
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Original Message -----
Sent:
Wednesday, September 05, 2012 8:26 PM
Subject:
LF: Re: MF CW QSO
Are you about for a quick try
on 501kHz right now? I will be quite chirpy! GW4XXF
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Original Message -----
Sent:
Wednesday, September 05, 2012 7:34 PM
Subject:
LF: MF CW QSO
Anyone about for a CW qso on 472/500
Khz
Daylight suitable for me, no need to
work in the dark
de g3kev
