JHN
Yes other radar transmissions can appear if the Rx is tuned to the same frequency, e.g. if two aircraft are using, for example, X-band radars that transmit (and hence receive) at the same frequency and let's say that they are facing each other, both aircraft's radars would receive each other's transmission. Can make for some interesting effects on the PPI
Graybeard
Cheers, no problem. The components that suffer most tend to be power supply circuitry and any processing circuits, which can get very hot quickly. You are entirely correct in what you say however.
Smithy