Paul Finch wrote:
> Hello,
>
> Does anyone have a good way of measuring the frequency of PC board micro
> strips (M/S)? I have tried my old Millen Grid Dip meter but there is just
> not enough radiated at 220 MHz to get a good dip. I am trying to modify a
> transmitter from 168 MHz to 224 MHz and not having a lot of luck getting 220
> past these M/S's. There is a M/S before the driver and another after the
> final. Got everything tuned to the input of the Micro Strips but nothing
> past them.
>
> Paul
>
>
I would jumper them and try to get the driver tuned for 224 first. Then
I would then get a decent 220 source such as a sweep signal generator
and trim the strips accordingly . You need to find out what
impedances those strips are designed for and then placed them on
them so you can get those dips and notches.
Adam
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