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Author Topic: Cross needle Power Meter recomendations  (Read 1191 times)
ND9B
Member

Posts: 49




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« on: October 11, 2011, 06:20:03 PM »

I'm looking for a cross needle power meter that has GOOD PEP reading on BOTH forward and reflected power. My Ameritron AL-80B amplifier has such a meter. I can see at a glance if the power and SWR are good WHILE I'm talking. Unfortunately, I can't use the Ameritron meter when operating barefoot.

Oh, this meter would be for HF for both 100W and 1000W operation.

ND9B
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WA2AAR
Member

Posts: 83




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« Reply #1 on: October 11, 2011, 07:26:43 PM »

I use a Daiwa CN-801 it is good for 1.8 to 200MHz. Power range is 20, 200, 2kw. It does not need any external power supply. It is a good power meter. I did some testing on it and the readings are right on.

Bob
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K2OWK
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Posts: 1041




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« Reply #2 on: October 11, 2011, 09:47:12 PM »

I use an MFJ-8158 reads 300 and 3000 watts peak or average. No power is required for the meter, but if you want to illuminate it you will need a 12 volt wall wart. I have had this meter a few years with no problems. While it is not as accurate as a peak meter with an internal power supply. I find it is accurate enough for most operation and the peak damping is excellent.

73s

K2OWK
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K7KBN
Member

Posts: 2765




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« Reply #3 on: October 12, 2011, 04:41:01 PM »

A "real" PEP meter will have internal batteries or an external power supply to run the necessary extra circuitry it needs.  Meters that have a "peak" meter switch position might, occasionally, be reasonably close, but without the powered circuitry, they are NOT PEP meters.
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73
Pat K7KBN
CWO4 USNR Ret.
KS2G
Member

Posts: 368




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« Reply #4 on: October 12, 2011, 06:42:57 PM »

Forget about cross-needle.

Get a dual meter with REAL peak-reading like an Autek WM-1:
http://www.autekresearch.com/wm1.htm
http://www.eham.net/reviews/detail/139

Or, if you can find one at a reasonable price (not easy to do) a long-discontinued Kenwood SW-2000:
http://www.eham.net/reviews/detail/870

Much easier on the eyes.
And more accurate.

73,
Mel - KS2G

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ND9B
Member

Posts: 49




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« Reply #5 on: October 14, 2011, 06:25:07 PM »

I'm looking for a cross needle power meter that has GOOD PEP reading on BOTH forward and reflected power. My Ameritron AL-80B amplifier has such a meter. I can see at a glance if the power and SWR are good WHILE I'm talking. Unfortunately, I can't use the Ameritron meter when operating barefoot.

Oh, this meter would be for HF for both 100W and 1000W operation.

ND9B

Well I found a meter that really fits the bill, the Ameritron AWM-30. This thing really detects peaks on both forward and refected power. It manages to find the peaks in normal speech and holds on like a pit bull. There's no need to "eat you microphone" calling "heeeeeeeeelloooooooooo"! This is a good "while you talk" meter. I get readings on SSB just as easily as CW. The case is rather plain, but a perfect match to my Ameritron amplifier.

ND9B
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