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The cliche` for testing a wattmeter to see if it's a 'true' peak-reading meter is to key the mike on sideband, and turn the mike gain all the way up. Take a pencil and "WHACK!" the mike with it. Then turn the mike gain back where it should be and compare the reading you got from the pencil to a "heeeello". If they're the same, it's the real thing. And if the thwack showed a lower reading than a "heeeello" it's not necessarily reading true peaks.

But this test depends on a really long fall time for the peak-reading circuit. I set mine to fall back faster. Tends to reduce that "heeeello" reading just a bit. Sure reduces the "thwack" reading.

I call it a technical compromise. Besides, if a customer's wattmeter shows a little more than mine did, nobody ever seems to complain about that.

73

<blockquote data-quote="nomadradio" data-source="post: 681999" data-attributes="member: 22">The cliche` for testing a wattmeter to see if it&#039;s a &#039;true&#039; peak-reading meter is to key the mike on sideband, and turn the mike gain all the way up. Take a pencil and &quot;WHACK!&quot; the mike with it. Then turn the mike gain back where it should be and compare the reading you got from the pencil to a &quot;heeeello&quot;. If they&#039;re the same, it&#039;s the real thing. And if the thwack showed a lower reading than a &quot;heeeello&quot; it&#039;s not necessarily reading true peaks. But this test depends on a really long fall time for the peak-reading circuit. I set mine to fall back faster. Tends to reduce that &quot;heeeello&quot; reading just a bit. Sure reduces the &quot;thwack&quot; reading. I call it a technical compromise. Besides, if a customer&#039;s wattmeter shows a little more than mine did, nobody ever seems to complain about that. 73</blockquote>

[QUOTE="nomadradio, post: 681999, member: 22"] The cliche` for testing a wattmeter to see if it's a 'true' peak-reading meter is to key the mike on sideband, and turn the mike gain all the way up. Take a pencil and "WHACK!" the mike with it. Then turn the mike gain back where it should be and compare the reading you got from the pencil to a "heeeello". If they're the same, it's the real thing. And if the thwack showed a lower reading than a "heeeello" it's not necessarily reading true peaks. But this test depends on a really long fall time for the peak-reading circuit. I set mine to fall back faster. Tends to reduce that "heeeello" reading just a bit. Sure reduces the "thwack" reading. I call it a technical compromise. Besides, if a customer's wattmeter shows a little more than mine did, nobody ever seems to complain about that. 73 [/QUOTE]

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