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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 |
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