Thanks for all the great comments and advice on this guys! I really
appreciate it.
73
Brian / w5ami
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- Original Message
From: Jay Rusgrove <[EMAIL PROTECTED]>
They can be easily checked if you have a DVM that reads ac amperes. Put the DVM
and the rf ammeter
in series with an appropriate sized load (several light bulbs) and plug it in
to 120 VAC.
Jay
Reply from Jim, WDJKO:
JAY,
On 2/10/07, Rbethman <[EMAIL PROTECTED]> wrote:
Brian,
GOOD DEAL!
Until you poke around, you don't know if YOU are supposed to supply the
thermocouple OR if it is INTERNAL.
Yours is INTERNAL and already supplied AND matched to the meter.
Life is GOOD! Makes it very simple.
I guess I'm sti
The only 'drawback' to the internal-TC RF ammeters, is that the meter
must be physically near the feedline, or whatever source of RF you're
measuring.
At low and medium power HF frequencies, this usually isn't a big
problem, but as powers and freqs go up - it becomes more and mmore of a
Brian,
GOOD DEAL!
Until you poke around, you don't know if YOU are supposed to supply the
thermocouple OR if it is INTERNAL.
Yours is INTERNAL and already supplied AND matched to the meter.
Life is GOOD! Makes it very simple.
Bob - N0DGN
A.R.S. - W5AMI wrote:
On 2/10/07, A.R.S. - W5AMI
On Sat, 10 Feb 2007, A.R.S. - W5AMI wrote:
Thanks Bob. Well, it looks like I'm missing that. All I have is the
meter, by itself in a box.
Usually in the tiny fine print on the meter face, down at the bottom -
it will give the meter parameters - "5.0 ma fs" for example - the scale
sa
2007 10:32 AM
Subject: Re: [AMRadio] Thermocouple rf ammeter
> Brian,
>
> There is 'supposed' to be an EXTERNAL thermocouple that sits in parallel
> to the RF Ammeter.
>
> The ammeter is ONLY one piece.
>
> My $0.02 worth.
>
> Bob - N0DGN
>
> A.R.S. - W
I have a couple of RF ammeters. They work stand-alone. No external
thermocouple. I just put them in series with feedline, and they seem to
indicate RF current just fine.
--
Ernie, k0occ
Atlanta, GA
-- Original message --
From: Rbethman <[EMAIL PROTECTED]>
> Brian,
>
On 2/10/07, A.R.S. - W5AMI <[EMAIL PROTECTED]> wrote:
On 2/10/07, Rbethman <[EMAIL PROTECTED]> wrote:
> Brian,
>
> There is 'supposed' to be an EXTERNAL thermocouple that sits in parallel
> to the RF Ammeter.
>
> The ammeter is ONLY one piece.
>
Thanks Bob. Well, it looks like I'm missing that.
On 2/10/07, Rbethman <[EMAIL PROTECTED]> wrote:
Brian,
There is 'supposed' to be an EXTERNAL thermocouple that sits in parallel
to the RF Ammeter.
The ammeter is ONLY one piece.
Thanks Bob. Well, it looks like I'm missing that. All I have is the
meter, by itself in a box.
73
Brian
Bob and Brian...
Don't some rf ammeters operate without a thermocouple or are they built
in? I have several meters rf meters and wonder how best to tell which
is which.
Thanks,
Rick/K5IZ
Rbethman wrote:
Brian,
There is 'supposed' to be an EXTERNAL thermocouple that sits in
parallel to t
Brian,
There is 'supposed' to be an EXTERNAL thermocouple that sits in parallel
to the RF Ammeter.
The ammeter is ONLY one piece.
My $0.02 worth.
Bob - N0DGN
A.R.S. - W5AMI wrote:
Don, or anyone;
I've got a NOS, still in the box Triplet 0-5 amp rf ammeter that I'd
like to hook up. Using
Don, or anyone;
I've got a NOS, still in the box Triplet 0-5 amp rf ammeter that I'd
like to hook up. Using balanced feedline, I'm assuming I just hook it
in series with one leg of the feedline. This would be AFTER the
balanced link coupled tuner of course. Do; do you use two, one on
each leg?
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