GB4TRS is the Special Event Amateur Radio callsign for Railways on the Air.

It will be operated from Tondu Railway Canteen by the members of Aberkenfig & District Amateur Radio Club on the 28th and 29th September. 

The railway station was opened by the Llynvi Valley Railway on the 25 February 1864. Originally developed as part of the Duffryn Llynvi and Porthcawl Railway, it was a junction of six railway lines:
 

• The Duffryn Llynvi and Porthcawl Railway from Porthcawl to Maesteg and Abergwynfi
   

• The Maesteg Line to Bridgend, connecting to the South Wales Main Line
   

• The Ogmore Valley Railway to Brynmenyn & Nantymoel
   

• The Port Talbot Railway and Docks Company to Port Talbot docks and Pontyrhyl
   

• The Garw Valley Railway to Blaengarw and onwards to the Blaengarw and International collieries.
  
  It hence had an extensive set of railway workshops, and was also the junction access point for the Tondu Ironworks. Enough traffic flowed through the junction to warrant a sizable locomotive shed. The original Ogmore Valley Railway shed was demolished in 1889 to make way for a roundhouse shed, which later became home to various Great Western Railway allocated tank engines.
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The ironworks shut from 1895 onwards, but the previous developments meant that it remained an important junction with the installation of a wagon works for the collieries in the area. After British Railways closed most of the branch lines to passengers in the 1950s and early 1960s and the demise of the Blaengarw and International collieries in the late 1980s, the station and lines were greatly rationalised. The locomotive shed closed in the late-sixties. Tondu station was closed on 22 June 1970 (with the end of passenger trains over the old L&O route to Cymmer Afan) and was reopened on 28 September 1992. British Rail and Mid Glamorgan County Council reopened the line.

The current passing loop is still controlled by the former Tondu junction signal box, which manually controls the line using semaphore signals. As well as the former Maesteg Line, the former Port Talbot Railway and Docks Company line exists as a freight-only by-pass line to Margam. Passenger trains would sometimes be diverted through this branch-line whenever the main-line between Bridgend and Port Talbot was closed for engineering work. Trains were diverted to travel via and reverse at Tondu.[2] Nowadays, when the main-line is closed, bus services will replace train services as the old branch has speed restrictions of 5-15 mph in force.

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For more information on this or the Aberkenfig & District Amateur Radio Club please email us on info@aberkenfigradioclub.co.uk