[Lowfer] Re: Hifer reception this week
James Moritz
[email protected]
Fri, 05 Jul 2002 17:25:46 +0100
Dear Lowfers,
Noisy conditions on 13.555MHz last night - I was able to see NC, MP, and GM
again, but nothing from RY this time.
The previous 5 nights have yielded signals on every occasion, although
conditions don't appear to have been particularly good. The best reception
seems to occur between about 0000 and 0500 utc, when there is usually
something visible, and the man-made noise seems to be at a minimum. The
signals often become audible for short periods - there has always been
rapid fading over about 10 - 20dB over a timescale of a few seconds, giving
rise to a broken-up appearance on the waterfall trace, and the signal also
fades in and out more slowly over periods lasting from minutes to 10s of
minutes, so having a QRSS contact might not be easy at this distance.
The effects of propagation are much more apparent than at LF, as you would
expect. The waterfall traces are often blurred, and at one point last
night, the signal from GA split into 2 distinct traces running parallel a
couple of Hz apart.
SM6LKM's 14.1011MHz beacon has been harder to copy here - it is usually
visible in the mornings, but generally much weaker than the trans-atlantic
signals. Perhaps this is due to our antennas not being favourably aligned,
or just that propagation at 14MHz works better over several 1000s of km
than it does at 1000km
Cheers, Jim Moritz
73 de M0BMU