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Re: LF: QRM on 472.5kHz

To: <[email protected]>
Subject: Re: LF: QRM on 472.5kHz
From: "Graham" <[email protected]>
Date: Sun, 18 Aug 2013 14:53:47 +0100
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QRP stations prefer to do WSPR only or have short QSOs.(
 
Q-Q-QRP  ones  use  Opera  and  ROS-MF-2   and  have   very long  qso's  ...  but  no one  knows [but us]  as  the  signals  are  under the  noise
 
G ; ) 
 

Sent: Sunday, August 18, 2013 1:43 PM
Subject: Re: LF: QRM on 472.5kHz

Hi Clemens, MF,

Some more thoughts about QSY:

Am 18.08.2013 11:38, schrieb Clemens Paul:
In the mean time it would be a good idea to stay away at least 2kHz from the
usual calling qrg 472,5 when you are rag chewing for hours which was
interesting to listen to.:-)
The band is wide and empty enough so there is plenty of room to choose.

The problem is:
There are only a few active CW stations on that band (over the year, not arround xmas time). CW activity can be found between 474...473 kHz (> 90% of all QSOs).
And: The regular active CW stations are the stronger ones!!
The reason is simple: If you struggle a long time just to get the station deteils of the other station for the logbook, then you are happy and tend to finish the QSO before the signal is lost in QSB completely. You will not talk for hours, talking about others antenna :-) , when the RST is 239!
QRP stations prefer to do WSPR only or have short QSOs.( OK, the UK may be an exception here, because the station density is much higher and they can find active stations in a smaler range, which is fine.)

Now, if these few active stations are splitting each other on the entire band, it will be even more harder to find a QSO partner. And RX stations will tend to choose the frequency where they can actually listen to a QSO while doing other things in the background (like building linear PAs), as you did last night.
After some time, the actual center of CW activity would move then to where activity can be found. And if it is true that the active stations are the strong stations, then someone will come with the idea to make QSY from that fequency :-)

73, Stefan/DK7FC
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