These impressive shots show a number of UK NDBs, and were taken by David in May 2007 and July 2008. These images show the Chiltern Beacon 'CHT' on 277 kHz, the Cranfield Beacon 'CIT' on 850 kHz, Henton Beacon 'HEN' on 433.5 kHz, Luton Beacon 'LUT' on 345 kHz, Oxford Beacon 'OX' on 367.5 kHz, the Stansted Beacon 'SSD' on 429 kHz (now closed), Westcott Beacon 'WCO' on 335 kHz, and last but not least, Woodley 'WOD' on 352 kHz. 'CIT' is one of the harder beacons to hear due to it being in the middle of the Medium Wave Broadcast Band, so it's very nice to see it, even if many of us do have great difficulty hearing it.
David tells us that CIT-850 is located at IO92rd, and although it is less than 50km from his QTH, it has always been a weak signal - these images show you why. David also says that ironically, Cranfield (EGTC) is also used as a training field for most of the UK's commercial pilots, so the outer marker is one of the few that is still working. He said that the NDB hut was in a very sorry state, and he wasn't able to get inside the compound, but even up against the fence there was only a small signal. The feed was barely 2 metres above ground, and the single wire is draped onto a telegraph pole 30 metres away, and to hear this one, you will need good propagation and a good receiving set-up!
The LUT beacon at Luton (EGGW) is located at IO91uv. David says that the outer marker is now silent, and considering that there is absolutely no added capacity hat or wires, the Beacon itself is an incredibly good
The SSD beacon is located Stansted Airport in London (EGSS). David says that the radiator mast is only around 10m tall, which probably explains why so many listeners find it to be a marginal signal. Being on the airport, it has to be lit and you can see the lamp at the top of the radiator. He was also able to get a good shot of the transformer at the base that feeds power to the light, and has included a shot of that as well. SSD is located at: N5153.7 E00014.7, and has a listed range of 20 nautical miles.
'OX' is located at Oxford Kidlington Airport (EGTK), and this beacon stands at one end of the main runway. It has the usual lights at the top of its short tower, and the outsized transformer to feed them near the base. Unusually for these safety-obsessed times, there is not much in the way of a barrier around the tower. Oxford is a training base for commercial pilots, but the beacon is not usually active at weekends. This is also one of the few UK airfields where there is still an active 75MHz marker. OX is located at: N5150.0 W00119.4, with a listed range of 25 nautical miles.
Our thanks to David for sharing these pictures with us, it's always nice to see just what kind of set up we are hearing when we receive these signals.