Do you know the time of day when there will be a break, please? I do not
expect to notice it in Burgundy but would like to see if I'm wrong.
73
John F/G3PAI
*********** REPLY SEPARATOR ***********
On 31/03/2006 at 13:28 John W Gould wrote:
>Given that there may be a short break in LORAN transmission this coming
>Tuesday I thought that I would post an e-mail requesting measurement of the
>background noise floor, whilst the Rugby transmitter is off, and a further
>measurement when the Rugby LORAN signal re-appears. It would be helpful if
>this could be done in a number of locations around the UK, especially where
>the interference is significant, so that we can get a better picture as to
>the extent of the problem. Unfortunately, I will be travelling on Tuesday
>so won't be able to participate from my QTH in Newport Pagnell.
>
>I would like to be able to compare results from a number of sources, so it
>may be best to calculate the difference between the noise level in say a
>500Hz bandwidth with and without the Rugby LORAN transmission and thus
>compare S/N. The other measurement that is probably worth doing is to
>measure the S/N of one of the lines. Any other suggestions?
>
>On the complaint front the RSGB made an official approach last year and had
>a reply from Trinity House. However, at the time it looked as if the NELS
>might close many of its LORAN transmitters at the end of 2005. Given that
>this didn't happen, and the continuing nature of the problem from the Rugby
>transmitter, I feel that we now need to follow-up our initial approach, and
>perhaps widen our concerns, given that a proposal for an Amateur Secondary
>allocation at 136kHz is on the agenda for WRC07.
>
>73 John, G3WKL
>RSGB HF Manager
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