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Following my exile to another radio station, I'm
back at Malin Head Radio again.
However my extensive LF antenna system came down
in a recent gale and I have not had a chance to restore it to service
again. All is not lost, at least I can hear some stations on an indoor 1
metre loop with a differential loop amp. The following stations have been heard
over the previous weekend.
G3KEV, G3YXM, G4GVC, MM0ALM.
I managed to get on the LF 80 metre net last Sunday evening,
for a very short while before rushing off for my night duty. It might be
of interest to note that I was using an antenna of about 2 feet
high, well short of a metre high , sitting on the work bench, consisting of the
base matching coil from my LF set up and a 2 foot by 1 foot piece of
cooking foil wrapped over a
piece of perspex , for the top hat. The coil has
38 turns wide spaced over one foot , diameter , 6
inches. Originally I used this almost as a joke to listen on 80 metres,
since I have no outside antennnas at present. I was astounded to get a
responce
on 80 metres and have now worked a number of station on 80 m.
Yesterday and today I worked quite a few stations on 40 m.
To match to 80 m , the tx tapping was 11 turns up and
the coil tap was 17 turns up. On 40 m , tx 12 turns up
and coil
14 turns up.
The reason for mentioning
this is , it has made me re-think about heavily loaded antennas for 136
khz. Perhaps before I put up my usual big long wire antenna for 136
khz I might have a go at a micro helical top loaded antenna. Will
keep the group informed of any progress.
73's Finbar
EI0CF and glad to be back at Malin Head
Radio.
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