'Deep Image.co.uk' A photograph by Leigh Bishop
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Image Information Directional finding radio receiver. These were available to the MOD at the time this vessel was afloat. The procedure was quite simple and is still in use today, however, a little bit more technical and usually automatic.The circular wheel as shown to the front would be turned by the operator until the incoming radio signal was at its strongest/loudest, to the rear of the dial would be a card marked with degrees in relation to the ships head. A note would be made of this bearing and also a note of the ships heading. This would then be passed to the operations centre. on its own the message would be useless, however, include the details from another couple of ships or indeed a shore station or two listening to the same broadcast, the sender's location could be plotted quite accurately by triangulation. Thanks to Robert Armitage-Walker for this kind information. Back