Hi Heinz, try to run a pair of top wires in each direction if you can manage
it separated by at least 0.7m. They only need to be thick enough to support
their weight. Keep them as high as possible and if they need to slope make
it as shallow as possible. This should get the capacitance up above 1000pF
and make loading it a lot easier. It will also reduce your ground losses.
Increasing your ERP considerably.
I look forward to hearing OE again it has been a longtime since I heard it
last.
Do look out for the demo station at the RSGB HF Convention which will
probably be active late Friday and Saturday and early Sunday (Thanks to
Derek and the friends)
Regards de Alan G3NYK
----- Original Message -----
From: "Heinz Schnait" <[email protected]>
To: <[email protected]>
Sent: 02 October 2005 19:26
Subject: LF: 136kHz activity from OE
Hi everybody
Our local radio club will hold its annual fieldday on Saturday, October 8.
This years main activity will be an activation of 136kHz. The operating
site is a cottage out in the country. There is electricity but no
telephone or internet.
We have two transmitters with spare FET's available (G3YXM designs).
Receiving equipment will include various bandpass filters, preamplifiers,
a converter and commercial transceivers. The landscape at the operating
site is mainly meadows (pasture for cattle) with plenty of old trees
around. We plan to build a toploaded Marconi antenna. A vertical section
of 15 - 20m and 100 - 200m in two opposite directions should be possible.
We have a loading coil wound on a rain barrel and test equipment for
resonating the antenna.
We will start at about 0700UTC and operate until the evening hours. The
fieldday activity is centered on this one day, but as long as the antenna
stays up we might continue working longwave during the week and the
following weekends. It certainly will not be a permanent installation.
Callsigns on the air will include OE5EEP, OE5ODL, OE5PGL, OE5MW and
possibly some others.
One requirement is try weather. If we have to postpone, I will post it
here.
73 Heinz, OE5EEP
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