[TowerTalk] Radio Shack remote-reading wattmeter

John Brosnahan broz@csn.net
Tue, 5 Aug 1997 08:17:20 -0600 (MDT)


>
>It has average and peak modes -- no peak hold as far as I can tell.
>
>As I do not have another peak reading meter, I can't offer any comments on
>accuracy in this mode. In average mode, it agrees with my Bird 43.
>
>Rolfe, W1VC


Rolfe,

I have seen a lot of interest over the last few days on the
Radio Shack units.  I purchased two of them about a month
ago and was quite disappointed.  Both were very poor on
power calibration (and similar!),  reading about 25 watts on
a carrier when both the 781 and the Bird 43 were reading
100 watts.  But they could have been recalibrated, I guess.
But both seemed to perform poorly on CW with erratic 
readings due to improper time constants in their integration
circuitry.

The review in QST was not very favorable and I just wanted
to add my thoughts as a bit of a caveat.  My experience led
me to the conclusion that I should build my power meters
myself.

73  John  W0UN


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