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Old September 17th 03, 10:16 AM
Bob Miller
 
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On Tue, 16 Sep 2003 17:21:23 +0200, "Thierry"
wrote:

Hi OM's,

I would like to buy an external wattmeter able, in the future, to check the
power emitted by a 1-2 km Amplifier (kenwood TL 922 or another high-end).
There are a lot of models, from the portable Bird43 using a single niddle to
the MJF 817 and alike using a dual system, crossed niddles, or even digital,
but it must first be able to support a PEP of 2 kW.

As a dual system similar to the MJF model, there is the vectronic,
http://www.vectronics.com/vectronics...p?prodid=PM-30 (3 kW)
Another good one seems to be the ameritron 30X
http://www.ameritron.com/ameritron/p...?prodid=AWM-30 (2 kW)
but in both models the scale seems too small and not easy to read.
The Autek looks fine too but it is not powerful enough,
http://www.autekresearch.com/wm1.htm (100 W)

What are good models able to meet my specs ?

Thanks in advance

Thierry
ON4SKY, LX3SKY
http://www.astrosurf.com/lombry/menu-qsl.htm


I have a Bird 43, which works fine, but is inconvenient to use, if you
want to compute SWR. You have to go to the instruction booklet and lay
down pieces of paper on a nomograph, which is a hassle.

Most of the time, I just use the cross-needle meter on my MFJ-989C
tuner. It shows watts out at a glance -- just look at the "forward"
needle. And so long as the "reverse" needle is not moving, I know the
SWR is okay. I'd imagine any of the MFJ stand-alone SWR meters would
work equally well. Just choose one for the appropriate power.

The MFJ meter is only about 2.5" wide, but is quite easy to read.

Bob
k5qwg