[TowerTalk] Two radio overload?

[n4kg@juno.com]

Your description fails to mention whether the two antennas
will be pointing at each other or away from each other.  It 
makes a BIG difference.

To determine the amount of coupling, point the antennas 
at each other, feed 1KW into one and put a dummy load
on the other with a wattmeter in line.  Measure the coupled
power and you will know your worst case coupling.

My old TS830's have a transverter connector which interrupts
the RX line.  I built "protection boxes" for each radio using a
series 2 Watt 22 Ohm non-inductive (carbon comp) resistor
followed by two stacks of 4 low capacitance (pin) diodes
oriented in opposite directions.  NO more burned out antenna
coils.

de  Tom  N4KG

On Wed, 6 Dec 2000 10:38:30 EST W0AH@aol.com writes:
> A friend of mine and I plan to operate this weekend's 10M test and 
> are 
> thinking of using his IC-756PRO barefoot connected to a 3 element 
> monobander 
> at 40' pointing mainly toward the Carribean and South America.  My 
> FT-1000 
> and Titan 425 at one KW out will be connected to the KT-34XA at 40' 
> pointed 
> mainly at Europe or Asia/Pacific.
> Question.  With the towers and antennas about 90' apart do we risk 
> damaging 
> the fronts ends of the transceivers, especially the IC-756PRO?
> Can anyone suggest an better way to use the second transceiver for 
> South 
> America plusS+P while running with the FT-1000 and amp.
> Doug  W0AH

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