Hi Gus, Graham,
The WSPR part of the UK 500kHz band has been adopted by UK WSPR users
at 503.800 to 504.000 kHz. Dial set at 503.400kHz USB giving
505.900kHz centre frequency.
UK users must remember not to operate too close to 504kHz to keep Tx
bandwidth within the UK allocation.
This is the setting I am using on air at the moment - WSPR Tx
frequency 503.910kHz.
73.
Gary - G4WGT.
2009/8/30 Graham <[email protected]>:
> Ok Gus
>
> That's ok but for example 508 is a long way from the uk band , which
> presents a problem if you set up a wspr monitor either side of the pond
> .. as to what do you receive on ..508 or 504 .....?
>
> G ..
>
> from a previous post >>> 090826 0012 7 -17 -0.3 0.508513 W22XGR FN31
> 57
>
> From: Gus
> Sent: Sunday, August 30, 2009 1:25 PM
> To: [email protected]
> Subject: LF: Re: Fw: Quite please , beacons running close to 504
> Graham,
>
> for me there is no problem to tramsmit under 504 kHz.
> Why not run WSPR beacon from 503.900- 504.000 kHz !?
>
> de Gus SM6BHZ
>
>
> ----- Original Message -----
> From: Graham
> To: [email protected]
> Sent: Sunday, August 30, 2009 1:29 PM
> Subject: LF: Fw: Quite please , beacons running close to 504
>
> From: Graham
> Sent: Sunday, August 30, 2009 12:08 AM
> To: [email protected]
> Subject: Quite please , beacons running close to 504
> Just WSPR hihi
>
> Nice signal from Jim 504 - and Gus 504 + just the other side of 504 Gary
> also running with a good signal from his
> 'new' hf to mf convertor ...all showing >>>
> http://www.wireless.org.uk/grab/
>
> The big spread of wspr beacon frequency's is / will make wspr
> monitoring a problem this winter and beyond as the separation falls out
> side the bandwidth of the software, the uk frequency, just under 504 was
> to make use of the quite window close to the 504 carrier's noise band ,
> just inside the top of the uk 501>504 allocation.
>
> 'We' could re define the 'UK' dial set frequency higher to allow
> reception over 504 , but this dose bring with it a strong carrier in the
> pass band and the side band noise from 504 .. and will also increase the
> possibility of collisions within the uk allocation should activity
> increase
>
> Any ideas ?
>
> Graham .
>
>
>
>
>
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