[Tech-Assist] Marti STL funny readingsHere's a head scratcher.

[Ronald J. Dot'o Sr.]

Thanks Curt,  That's an awful lot to type and I appreciate the effort!

A couple things I haven't mentioned to add to the mix is the forward power 
meter on the STL-20 reads about 20 on the top scale and no reflected into 
the dummy and reads 20 forward and a needle wiggle just off the post 
reflected into the antenna load.

One problem I had during the installation was some low output (17 W forward 
and about 3 W reflected) into the antenna at the TX end of the coax.

It turned out that the 2 1/2" pigtail at the antenna end was RG-11 instead 
of RG-8.  I replaced it with RG-8 and the readings went to 35W forward and 
about 1.5 W reflected @ the TX end.

At the end of the coax into the antenna thru a 2 1/2' RG-8 pigtail the Bird 
read about 16 W into the antenna and 0 W reflected and the built in metering 
on the STL-20 read the same as above.

Ron D

----- Original Message ----- 
From: "Cowboy" <curt at spam-o-matic.net>

> On Tuesday 26 July 2011 01:09:14 am Ronald J. Dot'o Sr. wrote:
>
>> Both thrulines show 24 W into a 50 ohm dummy load and almost double that
>> into the antenna.  I'm sure that the STL-20 isn't magically almost 
>> doubling
>> the TPO into the antenna.  Both thrulines show about 1 to 1.5 W 
>> reflected.
>
> Alan gave you the short version.
> Here's a little longer version.
> ( ignoring frequency, which compounds the indication )
>