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LF: Re: 73kHz crossband

To: [email protected]
Subject: LF: Re: 73kHz crossband
From: "Peter Dodd" <[email protected]>
Date: Mon, 20 Mar 2000 09:01:52 GMT
Reply-to: [email protected]
Sender: <[email protected]>
Dear all.

Dave said
I have just spent a frustrating day trying to work Valerio IK5ZPV crossband
73/136. We had taken it for granted that the difficult bit would be hearing
the 73k signal at Valerio's QTH....  In fact he copied me at 0700, 1300 and
1400hrs but I saw nothing of his signal on 137.700 . Those of you who have
worked or heard him, know that Valerio has a very good signal on 136k,
usually quite workable on normal CW. So why could I not see him today? Beats
When I worked Valerio the sked time was arranged for 2000UTC and I
was to call every 15mins and spend the rest of the time listening (looking).
I saw nothing from Valerio until 2040 although he was apparently
receiving my 73kHz signals all the time. I put it down to finger
trouble this end because when he did appear he was so strong. It is
strange that 137kHz is the weak link.
The other factor is that my station is not optimized on receive on
136k when working crossband because the antenna is tuned to 72kHz.
What I need is a relay that will short out the 72k section of the
loading coil receive, so the contacts have to stand many thousands of
volts! When this problem is sorted out I am going to try a cross band
QSO with I5TGC.
On Friday evening I put out a QRSS CQ call on 72kHz while looking for
QRSS replies at around 137.7kHz. Later I received an e-mail from
Reino that he had seen me and called me on 137.1 normal CW. I now
understand that Dave had a successful sked with Reino. I received a
.jpg file showing Dave's and my signals nearly on the same frequency!
I arranged a sked and had a successful QRSS QSO with OH9UFO starting
at 2000, reports 'O' and 549 respectively. Reino asked if I could try
normal CW. This was a bit marginal, my report being 239, with a bit
of QRM (Dave?).

Regards, Peter, G3LDO

<[email protected]>

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