[UK-CONTEST] 7020 and 7018 kHz.

[G3SJJ]

Posting this to UK Contest and FOC Reflector, with a copy to G4BOH, as I 
had discsussions with members of both groups. Apologies to those who 
will receive it twice. G4BOH refers to 5th harmonic from 1440, it should 
be 1404 and there is a French station now. So it wasn't my rx after all 
but I am sure what I heard wasn't French!

By coincidence this one of the stations I have been recommended to 
listen to as part of my French course, though I prefer listening around 
7020 or even 7005!
I guess I will need to keep Main Rx on 1404 whilst maintaining a watch 
on 40m CW on sub rx!! Les deux oiseaux avec une pierre, n'est-c pas?

I think it is useful to send these reports to Chris Cummings. He 
responded quickly with good information.

Chris G3SJJ


Chris Cummings wrote:

>In message <43C7D542.6000101 at btinternet.com>, G3SJJ
><g3sjj at btinternet.com> writes
>  
>
>>Chris, Colin G3PSM suggested I tell you of Band Intrusions. Currently 1628
>>Friday 13 Jan, there is an FM broadcast station on 7020. I am trying to
>>record it.
>>
>>Chris G3SJJ
>>    
>>
>Chris,
>        Thanks for your report. Although I cannot hear this one at the
>moment, there is a very good chance that it is the fifth harmonic (!) of
>Radio France Info which transmits on 1440 kHz in the medium wave. It has
>been a problem for a number of years, the 4th harmonic on 5760 kHz also
>causes problems to other HF users.
>        This was raised with the OFCOM monitoring station at Baldock and
>they have discussed it with the authorities in France. They have been
>assured that the transmitter will be changed some time soon, no date
>specified. As this is a live case, I will keep an eye on it.
>        The FSK signal on 7018 kHz has been identified by our German
>colleagues as REA4, the Russian Air Force in Moscow. They run a number
>of transmissions across HF and use whatever frequencies suit them. This
>has been the case for many years and unfortunately nothing can be done
>officially. My advice to anyone being interfered with by unauthorised
>transmissions is to work through the interference, after all, you have
>the right to be there!
>  
>
Regards
Chris Cummings G4BOH   

>Co-ordinator
>RSGB Intruder Watch
>  
>