[BC] AM Loads

[Ronald J. Dot'o Sr.]

From: <towers at mre.com>

>I sounds like there is a mismatch in the X. Keep in mind that the X 
>side
> will transform with cable length to something not 50 ohm R at the 
> TX.
>
> Sweep the load at the ATU input and the TX going into the line.  If 
> there
> is any mismatch on the X side beyond it's sweet spot, then it won't 
> play
> no matter if the R might be 50 ohms at the TX.  No BE TX will.
>
> You also might have a transmission cable problem...
>
> MM

The AM-1A TX output goes through 3/4" foam filled 50 ohm heliax to a 
rocker type antenna switch with the switch output heliax going to the 
ATU input a short distance away.  There is maybe 15' of heliax for the 
whole run from the TX output to the ATU input.

Once the ATU is adjusted for min reflected things run fine so I doubt 
that I have a coax problem.  I have about 4 W reflected CW and about 6 
W with full modulation.

Ron D