UK Broadcast Transmission
Main indexMain GalleryFeaturesInfoSend in your photos
Desktop wallpaperMailing listsFAQsContact
The LibraryTeletextMHPAstrohosts

THE TRANSMISSION GALLERY

Photos by John P Martin Page last updated: 2022-03-21
Dalwhinnie (Link Site)
NGR: NN609838 Maps: Google  Bing (Ord Surv) Site Height: 607m      Structure Height:
Digital TV:
BBC Radio:
 
Ind. National Radio:
Ind. Local Radio:
Digital Radio:
Comments:

Dalwhinne self-help: the sequel. The receive link site. March 2022.

In January 2022 I published pictures of the Dalwhinnie (self-help) transposer Tx site. I have now been able to visit the Rx link site which fed this self-help transmitter. This operated as an Active Deflector of Rosemarkie.


Starting right at the top, here's the RX aerial. This is as close as I could get due to the deer fence.


The RX aerial is a domestic Yagi and is horizontally polarised, matching the polarisation of Rosemarkie, its designated parent station.


This is still an exercise in optimism, but it must have worked!


About 150m down the hill from the RX aerial, the cable passes over a burn and under the forestry track in this metal pipe ...


... the cable leads into the Transmitter Hall ...


... which is remarkably well preserved ...


... and still contains the equipment, which at some point was upgraded to be run from mains power. The original was battery powered.


The incoming aerial cable goes through a Triax power inserter for the mast-head pre-amp....


... then into the first of a pair of Taylor modules, with their PSU over on the left.


The top module is a 40dB pre-amp with AGC. The lower module is the power amplifier which I guess has a maximum output power of about 1 Watt but is not labelled in any way.


The TX signal then exits the Transmitter Hall to another domestic Yagi (VP), pointing northeast to the transposer site.


Looking northeast over Loch Ericht and Dalwhinnie from the site.

Dalwhinnie (self-help) | Rosemarkie

Please let us know if the photographs for this site need updating or improved detail.
To do so, click here.

Back to TX Gallery index | TX main index

mb21 by Mike Brown
Hosted by Astrohosts
Top

GDPR and Privacy Policy