At 05:18 PM 6/15/2005 -0700, you wrote:
> It sometimes helps to
>use 6 dB attenuators on either side of the cavity when tuning in this
manner, so
>that a relatively uniform impedance is presented.
<---I would argue that you should ALWAYS use a pad (3 or 6 dB) when tuning
a cavity. If for no other reason, to present an accurate 50 ohm load.
I never tune a duplexer (or cavities) without a pad on each port.
Ken
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