Jeremy and all, the external wattmeter reading has to overcome the
diode drop in the wattmeter before it will provide deflection. At low
power levels it may show no response until the power is great enough for
the diodes to conduct.
The full scale reading of the wattmeter may be correct, but at low power
levels there is a certain 'threshold' below which some meters will show
no power output (regardless of the range).
I am glad to hear that you now have the bandpass filters peaked.
73,
Don W3FPR
On 3/6/2013 5:17 PM, JeremyJones wrote:
The watt meter has a 5, 15, 50, 100W ranges, and I was using the 15 and 5 to
try and get measurements. Carrying on with calibration using the internal
meter yielded the expected results. I may actually be able get this on the
air tonight!
Thanks for the help,
Jeremy
VA3ZTF
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