Question about RF Power Meter

Howard Long <hlong@...>

I recently purchased a 2nd hand Marconi 6950 RF Power meter with a
6910 probe covering 10MHz to 20GHz.

It's OK on the 5dBm and above ranges, but at the 0dBm and below
ranges there is an increasingly large zero offset as the range
decreases further.

Is this likely to be the probe or the meter, and if so is it simply a
calibration job or is one of these bits likely to be dodgey, and
therefore I am the pround owner of a kipper?

73 Howard G6LVB

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