HB9ASB wrote:
Alarming is the increasing number of stations with good signals and
mediocre receivers. It seems to me, that the real challenge on the LF
band is the receiving part and I think there is still a lot of work to
do. This includes also directional receiving aerials.
I am aware of the fact that some locations suffer from heavy local QRM
or Loran-splatter or have more Luxembourg-effect than others. On the
other hand are receivers suffering from front end overload,
inappropriate AGC-characteristics and large bandwidths far from the
optimum.
I have argued this for years, and won't bore everyone with my
sermon again. The bottom line is that if you get better reports than
you give most of the time, you need to improve the receiver.
Remember the most successful stations can receive just as well
as they can transmit. With a good receiver and a poor antenna, or
low power, you can work more stations than with just a good Tx.
In the UK, I find a good test is comparing the 138.82 signal, and
the Greek RTTY on about 136, with the band noise, as follows:
138.82kHz s9+40
136kHz (evenings) s9
Band noise s2-3
It took me a while to get there, with careful filtering and level
adjustment.
Mike, G3XDV (IO91VT)
http://www.dennison.demon.co.uk/activity.htm
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