Hello Colin and others.

It's not altogether clear to me why one would need a SWR meter for power of
the kind generated by a linear amplifier. With the amplifier out of the
circuit, i.e., its relay in rest position, the exciter, unadjusted, looked
into whatever standing wave characteristics an antenna has. Those
characteristics, from my perspective, do not change, whether or not one
tunes out inductance and reactance with LC adjustable circuits. In short, if
a 50 ohm antenna appears flat with ten watts forward, it will or should
remain flat with a full thousand. If wide-spaced variable capacitors are
used to tune out these things, as done in high power amps with tubes, then
adjusting for maximum RF output is likely to be the optimal adjustment
capable with that amplifier. If my presumptions are true, why look for a
high power SWR meter, unless, of course, one wishes simply to look at SWR,
once maximum RF out has been attained.



Jerry, v e 3 q s o

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----- Original Message -----
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, February 19, 2005 2:36 PM
Subject: Re: Talking Watt Meter from LDG


> nope, it only goes up to 54MHZ...but it will handle up to 2000 watts where
> as remy's meter only handles max 625 RMS.
> When you are tuning an antenna with an amp you certainly want to make sure
> the swr between the amp and antenna or antenna tuner is right not just
> between radio and amp.
> So for anyone who wants to use over 625watts then the ldg meter would be
> better.
> However, since they dont offer a vhf version of the meter you would also
> need remy's meter for that....also if you are real picky about resolution
> the ldg meter is accurate to 5 percent either way where as the other is
> ten
> to fifteen percent accuracy.
> Regards
> Colin