The units were generally ground or ship based. They were often associated with anti-aircraft radar installations. One application in Australia was with the army A.A. Radar No1, Mk2 also known as G.L. Mark 11.
The units had wide band receivers and although hundreds of units were released after the war, they were not very useful. A few brave souls used them on 2 metres - they were great until more than one signal appeared on the band. All signals tended to mix together. Most were wrecked for parts - even then there was not much of use in them.
The unit was designed for use with an external 240 volt power supply. The power supplies would have been of more value to radio hams than the responsors were!
© Ian O'Toole, 2009. Page created: 28/04/03 Last updated: 4/12/2009