Ken Arck wrote:
>Hi kids
>
>I'm tuning up a T1504A, which has the 430 - 470 cable set on it. Everything
>looks good, except for one cavity - one of the lowpass/hi reject ones. I
>can't seem to get a very good null on it, regardless of the loop position.
>As a matter of fact, the reject seems to be "getting better" when it runs
>up against the outside edge of the adjustment slot. But I never find a
>definate point. The other 3 cavities are great - a nice, sharp, deep null,
>just about centered in the slot.
>
>Anyone have any ideas what I should be looking for?
>
You should be looking for a nice sized Ball-Pien hammer. They are a
very handy tuning aide for the Motorola T-1500 series duplexer.
<Grin>
Kevin
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