"CD" bravely wrote to "All" (20 Oct 05 06:44:55)
--- on the heady topic of "Two antennas and two power amps"

CD From: "CD"
CD Xref: core-easynews rec.radio.amateur.antenna:219123

CD I have some questions. If I had two power amps at 15W each, 2 feet
CD apart, and they are connected to two similar isotropic antennas, would
CD the two far-field patterns add up? How would I calculate the power
CD received by a receiver at a certain distance?

CD I wonder since each antenna will have 0dB gain, then ideally the loss
CD that I would need to take into account would just be free space path
CD loss, eh? Will the antenna patterns change in terms of beamwidth and
CD gain? What other changes/factors do I need to know about?


I'm not sure of the physics involved but when 2 oscillators of nearly
the same frequency are brought within a certain maximum distance of
each other, their frequency and phase will lock together suddenly. You
can experiment the effect with walkie-talkies. I'll bet the same
effect will occur with your transmitters.

A*s*i*m*o*v

.... A seminar on Time Travel will be held 2 weeks ago