What's the Topic?
CJ: "WTF? Totally irrelevant here. Both terms are used indiscriminately. A "radio" or "radar" altimeter uses FM CW radar technology to measure the distance to the ground, generally from 2500ft downwards."
Maybe you use both terms indiscriminately, CJ, but that doesn't make it right, especially when the topic is related to EMI. As you know, the radio altimeter is FMCW, and radar altimeter transmissions are pulsed. Those are quite different in terms of potential for EMI. Military techies and others just may get confused. In fact, there were radar altimeters used on 737s many years back.
Reminds me of the moderator on another technical forum who used to use electrical "shorts" to mean both short circuits and open circuits...
GB