Yes Mark , around 6 pm GMT time louder than the days before.
Shorter propagation by the moment I suppose because no eastern station at the
grey line today.
73´
Jean Paul
Envoyé de mon iPad
> Le 20 févr. 2018 à 21:29, Mark van Wijk <pa5mw@home.nl> a écrit :
>
> And just tonight they are loud again:
> https://www.flickr.com/photos/pa5mw/39676032834/in/dateposted/
>
> Signal level: 25dB above bandnoise
>
> RX antenna: 60mtr BOG in a ditch QTF 30
>
>
> 73
> Mark, PA5MW
>
>
>> On 2/20/2018 10:41 AM, Roger Kennedy wrote:
>> Yes, upon searching, I came across Alan Cordwell's web pages that he wrote
>> about the old Decca HiFix navigation beacons that used to be VERY strong
>> here in Britain, but closed down during the 90s.
>>
>> I emailed him about these, as they sound very similar.
>>
>> He confirmed that they are a Russian system that works in much the same way,
>> and have low power transmitter around the Baltic.
>>
>> As Mark posted, here's a link to Alan's webpage which shows you how they
>> sound:
>>
>> http://alancordwell.co.uk/Legacy/radionavigation/russian/bras.html
>>
>> They are used by fishermen to pinpoint their position so they can locate
>> fish stocks - that's why I referred to them as fishing beacons.
>>
>> I'm amazed some of you can hear them in the US, as they're rarely very
>> strong here - typically between S2 and S9, but generally around S5.
>>
>> But the thing to remember is that there are about 15 of them spaced evenly
>> between 1800 and 1820 kHz . . and they are quite wide. So these will often
>> block out weak DX signals here in Europe. So worth avoiding that part of
>> the band.
>>
>> Hopefully they will turn them off soon, and just use GPS !
>>
>> 73 Roger G3YRO
>>
>> _________________
>> Topband Reflector Archives - http://www.contesting.com/_topband
>
> _________________
> Topband Reflector Archives - http://www.contesting.com/_topband
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
|