[1000mp] Mark V power on 10 meters

Fri, 08 Mar 2002 16:06:45 +0100

When was the Bird calibrated? What kind � slug do you have in it?
The tolerance of a Bird is 8 % of full scale so if that�s an 250 W slug
the 125 W reading is nothing to complain about.. Your dummy load
is it correct on 10 m? Do you know if it has the same impedance on
10 as on 7 MHz? When was it calibrated or checked?

/Jim
---------------------------------------------------------

John L Merrill wrote:

>I forgot to mention that there is a constant 25 or so watt difference at any
>power level using a Bird 43....at 100w on the radio the Bird reads 125w,
>etc. Probably no big deal, but I thought it was odd that ten meters was the
>only band that was significantly different.
>
>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of Tom Rauch
>Sent: Friday, March 08, 2002 4:46 AM
>To: [email protected]
>Subject: Re: [1000mp] Mark V power on 10 meters
>
>
>>My new Mark V puts out 225watts or so on 10 meters even though the
>>meter on the radio says 200. The other bands are ok compared to my
>>external wattmeter into a dummy load. Is there an adjustment for 10
>>meters only or is this one of those Mark V abnormalties?
>>
>
>What type of external meter are you using for a reference and what
>is the tolerance of that meter?
>
>Maybe the FT1000MKV meter is right, and your reference meter is
>wrong. Probably it is a bit of both.
>
>10% error isn't much when measuring RF power!!
>73, Tom W8JI
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