[BC] 50 Ohm Load...

[BOYDSIRBOYD at aol.com]

RON,
 
don't forget the resistance of the cable/coax going from the  transmitter to 
the ATU.
this could be several ohms, and is not accounted for if you tune at the  
input of the ATU.
 
bill

I would then read the input of the ATU at Fo and adjust it for  50J0, 
which was all I could do on TX's that didn't have a reflected power  
meter.

After I set the ATU input to 50J0 I would tune / load the TX  into the 
ATU on the TX's that were tunable.

So far the TX's with  fixed outputs (BE AM-1A etc.) have had reflected 
power meters and I use that  to tune the ATU on CW for min reflected to 
accomadate the whole tunnle thing  that you suggested, which I think is 
a very good explaination for why the TX  doesn't like 50J0 at the ATU 
input.

Ron  D