Hi Bob , I am sure that you are aware of this but do get the guys to
remember that it is not ground sunrise/sunset that matters. It is the
darkness edge about 1000kms away. You can heft a signal into the dark zone
ionosphere up to an hour before sunset and an hour after sunrise at this
part of the sunspot cycle. On good days trans-Atlantic signals have been
seen two hours after dawn in Eu.
I look forward to your tests and hope for a bit better luck with the
conditions. I have submitted a request to Ra for a quiet period but a little
geomag activity about 5 days earlier !! :-))
It will be a pity if the wind farm QRTs you permanently from that site. It
has been a major landmark in LF development in amateur circles.
Best Wishes de Alan G3NYK
----- Original Message -----
From: Vernall <[email protected]>
To: <[email protected]>
Sent: 09 March 2007 22:37
Subject: LF: ZM2E activity from the end of the month
> Hi all,
>
> ZM2E is setting up for 136 kHz DX activity from 31 March, for up to three
> consecutive nights. This could be the last time that there is LF
> transmitting from Quartz Hill as the district is planned to become a large
> wind turbine project, and all radio antennas could need to be removed in
the
> next few months to cater for development.
>
> We are in private discussion with VO1NA and RU6LA regarding LF QSO
attempts.
> Expressions of interest are invited from others, as at ZM2E we will try
and
> cover moderate receiving bandwidth by having multiple Argo sessions
running.
> If we see an opening with another DX station we will "go fo it", whoever
it
> is, and try to make the best use of an incidental propagation lift. As we
> are prepared for three nights of operation, then we are hoping there will
be
> multiple "events" arising.
>
> The previously selected 137.7886/137.7890 kHz 0.4 Hz FSK, using "DFCW"
> coding, is the preferred transmission mode for ZM2E. There is very little
> QRM for ZM2E receive (no Loran lines of significance), so we can accept a
> range of receive frequencies within the receiver IF bandwidth, and we
could
> have three receivers running.
>
> If we are not in QSO mode before a ZL sunrise, we will go to beacon mode
and
> send a string of Z Z Z Z .... at FSK120, with the start of any Z
> synchronised to the hour and ten minute rests thereafter, so that EU
> monitoring may receive something identifiable from EU sunset.
>
> 73, Bob ZL2CA
>
>
>
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