Stefan
Write a report about a QRM generator.
This is not the first time this has happened on both LF es
MF.when operating from an ex commercial site antenna.
These commercial sites were used for Broadcasting and do
not have a suitable environment for Receiving when used by radio amateurs,
usually the antenna is too large on RX and picks up all the local
unwantedl noise. An attenuator would most certainly be required on RX plus
a good quality receiver.
If I remember correctly every time that radio amateurs
used these type of sites they ALL had the same problem and two of these events
happened in the UK on 137 Khz a few years back.
Large antennas are excellent when used in a Rural
environment but not in a built up industrial estate or similar.
A good receiver and flexible input attenuator is also
useful
Advice for future exploits would be to visit the site
beforehand and do a field/environment test and do not be tempted to TX if there
is no possibility of hearing anyone on the frequency of interest.
Another point is that the majority of LF es MF operators
are using BEACON mode only and have NO experience when it comes to having a real
time QSO and lack Receiving techniques. ie BEACON MODE es QSL VIA INTERNET, some
probably do not even have a Receiver in the shack.
To add to the confusion yesterday evening one OZ station
was in CW Beacon Mode on the QSO frequency of 472.5 Kh sending a long
list of information and QSL VIA INTERNET.
de G3KEV
----- Original Message -----
Sent: Sunday, September 09, 2012 1:36
AM
Subject: Re: LF: Re: Re: Re: DK0SWF
antenna
That's it, Geri!
We are coming from LF to MF, so MF is
not that spectacular. But if you're coming from HF to MF, that must be much
more exciting and new to explore such a "low" band wher all the stuff "must"
be homemade.
If they will write a report about their experiment and
results, they will cause more interest for others, which makes the band even
more alive. So the results can only be positive, even without 100s of
QSOs.
73, Stefan/DK7FC
Am 09.09.2012 00:47, schrieb Holger
'Geri' DK8KW DI2BO W1KW:
John,
A WSPR transmission
for the same length of time would gather much more usefuly information
than calling CQ with no hope of hearing any
replies?
I think it all depends on what we expect to get out of our
amateur radio activity. What would a WSPR signal reveal other than that what
everybody who ever had talked to the marine guys already knew: that a MF
signal can be heard a few thousand miles away.
Here we have a group of people setting up a fieldday station under less
than optimal conditions, not experienced with MF operation at all yet - and
had trouble to receive - so what? How long did it take us "experienced" guys
to be where we are today? Did it really kill some 'valuable' QSOs tonight
that we will never have another chance to have again? Just relax, the band
is still there tomorrow, sooner or later we will all have contacted each
other numerous times, in CW, WSPR, QRSS or whatever mode.
By the way: I had a QSO with Bert, DF2PI who was operating DK0SWF this
evening, and I was able to hear and feel his excitement to explore a new
band.
Did we all forget on how we started, on how we had to make our own
experiences when we began and what fun we had?
73
Geri, DK8KW & DI2BO
