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These impressive shots show the UK NDBs at Luton and Cranfield and were taken by David in May 2007. These images show the Luton Beacon 'LUT' on 345 kHz, and also the Cranfield Beacon 'CIT' on 850 kHz. The latter is one of the harder beacons to hear due to being in the middle of the Medium Wave Broadcast Band, so it's very nice to see it, even if we have a lot of trouble 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 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 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 radiator. The SSD beacon is located Stansted Airport in London. 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. 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. |
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NOTE# - All of the following pictures are copyright David Atkins, G8XBZ and should not be re-produced with out first obtaining the permission of the owner - please ask me for his contact details if you should require them. |
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This is an 'end-on' shot of the Cranfield NDB. (192.0kb) |
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This shot shows the feedline of the beacon. (172.0kb) |
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In this shot the NDB is seen from the front. (133.0kb) |
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CIT seen from the side. (323.0kb) |
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In this shot you can see the LUT compound. (355.0kb) |
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The NDB compound as seen from the front - note all the warning notices! (334.0kb) |
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Rear view of LUT. (244.0kb) |
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A close up shot of the LUT tower. (167.0kb) |
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In this shot you can see SSD mast, complete with lamp at the top of the radiator. (117.0kb) |
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This shot shows the base of the NDB, along with the transformer that supplies power to the lamp. (124.0kb) |
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