Jorge,
1. Measure the wire resistance in respect to ground and it should show
a resistance a little bit higher than your termination value. This
will check for breaks in the wire,
2. Put a temporary termination on the end of the coax (any convenient
value) and measure it at the shack end.
3. Check both sides of the beverage box with an ohm meter and you
should see only a few ohms on both sides.
4. Put a 450 ohm resistor across the Beverage side of the transformer
and check from the shack with a MFJ-259 for SWR.
5. If you don't have a MFJ 259 or equivalent try running 1 watt RF out
the cable and check the VSWR at the shack. (Most boxes with take a
couple of watts for a few seonds assuming you have a 2 watt resistor
across the Beverage side terminals.
6. Pull the wire out of the weeds.☺
Herb Schoenbohm, KV4FZ
On 11/23/2015 10:21 AM, Jorge Diez - CX6VM wrote:
Hello
I notice that my USA beverage is lower in 3-4 S units that some weeks ago.
At simple view all seems to be OK. I think the coax is not the problem,
because if I have a problem in the coax, will be completely deaf, right?
So this can be the cause of a problem in the end resistor or maybe in the
transformer? I use in this beverage a WX0B beverage boxes
What do you I need to test first?
Thanks,
Jorge
CX6VM/CW5W
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