In article , Paul Burridge
writes:

Now I have another question on the same subject. Imagine if you will,
a NBFM recieiver, set to listen on one particular channel. Now
consider 3 seperate sweep transmitters located say 100yds away. Each
sweeps slowly across the band which encompasses the RX's receive
channel.
Sweep transmitter 1 puts out only an unmodulated carrier wave. STX 2
puts out an FM signal of the same power level; STX 3 puts out an AM
signal of the same power. Assume the extent of modulation is likewise
identical - or as identical as it can be given different classes. Now,
which of the three TXs is going to 'take over' the RX channel for the
longest time? IOW, which of the TX signals appears broadest to the FM
RX?

Whichever signal is strongest is going to "take over."

You CAN determine this yourself, given some frequencies, RF output
levels, approximate gain/loss of the antennas, and the selectivity
(bandwidth) of the receiver and the modulation indexes of the
transmitters. Piece of cake.

Might I suggest you walk slowly away from the interfering RF fields
to avoid ionization the neurons? Any more?

Len Anderson
retired (from regular hours) electronic engineer entity

...and headed back to the Mother Ship...