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SWR/Watt meters

W5LZ

Crotchety Old Bastard
Apr 8, 2005
6,832
911
173
Oklahoma
FWIW



Everyone has their like and dislikes, and if you get

three people together you'll probably get three opinions

about almost anything you can think of, encluding meters.

Personally, I think the 'cross-needle' SWR/Watt meters

are the handiest things that have come along in a while.

You get three readings with two meters, that's a bargain!

They're a bit confusing to start with, but that doesn't last

too long. They are also much easier to use than the

'standard' style SWR/watt meter too. If you rememebr which

needle is for 'reflected' power, and keep it on the bottom

peg, your SWR has to be acceptible whether you can

read it or not from the interpolation scale. At the same

time it's telling you what your power output is. I don't know

about you, but when I'm mobile I don't actually read the

number on the meter, I just pay attention to the relative

position of the needle. For me, it's much easier to 'see'

a needle against the peg (or close to it) than try to

memorize the 'correct' needle position for what ever the

SWR is supposed to be. If I just ~have~ to know what the

'numbers' are, I'll squint, lean over, and read the thing.

Most of the time I don't have to do that, though.



Anything you introduce into a feedline will cause some

loss. In most cases it will be very small, or not noticable.

The idea that a SWR/watt meter causes a nonacceptible

loss in signal is really stretching things! Unless there's

something wrong with the meter (or it's design), it just

doesn't make enough difference to worry about. Every

thing is subject to failure, feedline, meter, antenna, etc.

The failure of any of those things means bad news for

everything else in line before it. In I don't know how

many years, I've never had an SWR/watt meter fail and

not know it. Never had one to fail catestrofically(?) either.

I've had them fail, not read right, or at all, but it didn't

'take' anything with it when it quit. Maybe I've been lucky.

I think taking the meter out of line deprives you of useful

information, to no purpose.



So, I hope that may put a different 'light' on things. There

are too many other things to worry about without adding

'stuff' you don't need to worry about to it. An SWR/watt

meter is just more of that 'stuff'...

- 'Doc




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