Raynet take part in tunnel exercise

Members of North Wiltshire Raynet and Gwent Raynet took part in an exercise at Box Railway Tunnel in Wiltshire, on 26 November.

The exercise, undertaken with Network Rail and the Wiltshire Fire and Rescue Service, tested radio communications the full length of the 1.5 mile straight tunnel.

Communication links were tested over the top of Box Hill as well as through it. External links were also tested to the Avon Fire & Rescue Service command HQ at Lansdowne with the help of Bath & North East Somerset Raynet.

The 2m band was used for the external, over-ground links, while 70cm and 23cm were used in the tunnel itself. While 70cm worked well through the tunnel, the tests showed that 23cm was by far the most reliable, backing up results from previous studies.

You can find out more about the exercise on the web at www.northwiltsraynet.org.uk.

Find out more about RAYNET
The Radio Amateurs' Emergency Network

Source: GB2RS News - Courtesy of the RSGB