|
The facts speak for themselves not my doing,
there were over 30 countries active on 137 a few yeas ago, now three or
four hardly encouraging.
All the recent hype by a few about getting on 9
Kcs, where are they now, since several permits have been
issued.
I have a 500 metre inv L antenna system
installed and resonated on 9 Kcs looking for acty on CW or QRS but
stress NOT looking for QRS 600 - 6000 atomic clock signals ctl.
I want to see someone transmitting that has put some effort into putting
out a signal that can be copied a few hundred miles away.
If there is enough acty I would consider
transmitting a signal that meets the above criteria.
Who at present has the capability of receiving such
signals in the UK. When can I expect some acty from you?
de g3kev
----- Original Message -----
Sent: Sunday, November 14, 2010 2:57
PM
Subject: Re: LF: Eu QRSS freq....
Mal,
As always, you paint a negative view of life on LF.
You may be right about LF activity levels, but it is for us all to
encourage others, not put them off, and there is a
place for CW, WSPR, QRSS and ROS etc on the LF bands.
Experimenting on
MF, LF and VLF, albeit very simply, has been a wonderful learning experience
for me and the good old days are still very much here with plenty to explore
and discover.
Be happy - life is too short to be always
miserable!
73s
Roger G3XBM
On 14 November 2010 14:08, mal hamilton <[email protected]>
wrote:
Jay
Another point which is different from some
years back.
The numbers are not there anymore, and what
does exist is spread across the bands 9, 137, 500 Kcs for example 2 ops
active on 9 kcs at times, 3 or 4 on 137 kcs and 500 kcs hardly used, only
heard 2 stns today testing and went away. Then there is mode diversity
dividing the acty between WSPR and CW
and most SWL'S are not interested in
WSPR.
The good days on the lower frequencies are
gone, definitely not attracting new comers, the numbers speak for
themselves.
I must say the other mf band 160 metres is vy
active world wide with CW acty
73 de mal/g3kev
----- Original Message -----
Sent: Sunday, November 14, 2010 12:17
PM
Subject: Re: LF: Eu QRSS
freq....
Markus, Group
Since my name was mentioned I'll make a quick
post.
We may have a chicken and egg situation here.
Up until several years ago I routinely monitored and reported on
EU activity on LF ... that is until EU stations moved en masse to the
US T/A window. It is simply impossible to receive weak signals from
EU while BIG US stations are on the air. One is reduced
to looking for crumbs of weak signals between long callsigns
strings. Worse yet, set up for overnight captures because no US
stations are active only to wake up to a screen full of US stations
that got a late start. I gave up.
Now there's talk of merging the EU and
US 500 kHz WSPR windows. Providing spots last winter, especially
for low power EU stations, was an interesting and challenging
pursuit. But it won't be if the majority of WSPR time slots are
clobbered by strong local groundwave signals.
Don't change anything on my account ...
there's plenty of other interesting things to do on VLF, LF and
MF!
Jay
----- Original Message -----
Sent: Sunday, November 14, 2010
6:17 AM
Subject: Re: LF: Eu QRSS
freq....
Dear Mike,
first of all, let me say that your signal
has never created any problem here, and I appreciate your careful choice
of operating techniques to mitigate potential interference. As far as I could see, there were only very
few occasions, when spectrograms in Holland and
France where being desensitized when you and XGJ were on
simultaneously. But on the other hand, I think I would have
a problem if I lived much closer to you.
I also completely
understand your point about the lack of feedback from grabbers
operating in the designated Eu slot. In the past, we were
rewarded by excellent captures, for example from Jay and Laurence.
In my opinion, the point of the story is to motivate every LF grabber
operator to include an Eu slot as well.
Regarding choice of frequency: If I
remember right, we went from the original 135.92 kHz to
136.32, because the latter provided a larger gap between
American Loran lines - which is no more an issue now. But
recently, CFH's wideband FSK around 137.0 has been reactivated. How
much does it affect stateside reception on 136.32? If they
continue, we may consider to bring the slot back to the bottom
end.
Kind regards,
Markus (DF6NM)
Sent: Sunday, November 14, 2010 11:41 AM
Subject: LF: Eu QRSS freq. Was 'XDV QRSS60
137k'
Hartmut,
You are right. In the past I
have strongly argued that Eu beacons
should be in that part of the
band. However, the reality is that no-
one is listening there (apart
from a couple of Eu grabbers). There
are grabbers in Alaska, Western
Canada, Japan and Eastern Russia but
not one covers the 136.320kHz
sub-band.
That sub-band was originally created when there were
many Eu (mostly
UK) stations chasing QSOs and reports from the east
coast of America -
there were even several Canadians capable of
two-way QSOs. The idea
of the split frequency was that these QSOs
should not cause QRM to
each other. Now there are very few Eu
stations interested in DX
working, and seemingly no east coast
American stations routinely
monitoring.
I try not to
QRM those Eu stations who are monitoring for US and
Russian beacons.
This is achieved by not beaconing every day, and by
not beaconing
continuously (which is why I synchronise each
transmission with the
start of each hour). My frequency is much lower
than most US and
Russian beacons. I have also announced that if my
transmissions
cause anyone any problems, I will close down. In
practice, unless
the receiving station is within about 150km of me
there is little
chance of real QRM - last night EW6GB was fully
readable just 0.2Hz
HF of me on the grabbers of DF6NM and OE3GHB.
There is still a
use for the Eu DX sub-band during two-way DX QSOs,
or tests
involving lots of activity. I will be the first to use it
again if
any DX stations are prepared to monitor it.
Does anyone else have
a view on this?
Mike,
G3XDV
==========
--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM GQRP
1678 ISWL G11088
|
