History
Braewynner is one of the first true microwave link stations set up by the Post Office for general telephony purposes. The link to Thrumster entered service in 1956 on 4 GHz using equipment to a PO design (type RS 10/2) and carrying 240 circuits. The scheme was designed to integrate with existing cable at either end and many of the technical developments for the Braeywynner/Thrumster link were adopted as standard practice. BT Archives has a number of papers covering the technical detail and the operational performance of the link.
The link consisted of a single "hop" which was for its time over a relatively long distance and across water. Various "diversity" arrangements were adopted to ensure consistent performance, including the simultaneous use of two frequencies (4.110 and 4.158 GHz in the Braewynner > Thrumster direction) and dishes at different heights above ground. Guyed masts of the standard type - square section with pointed top were used at both ends of the link - the one at Thrumster survives.
The route remained in service until around 1978 however the site at Braewynner was then abandoned - the network had developed using Tor Sliasg and a new route which reached Thrumster via a series of shorter segments along the coast. The buildings possibly remain at the end of the access track but the mast has been dismantled.
