There is a lot of info on the RB website for the 202,including a
detailed explanation of the hybrid ring and jumper lengths. I would stay
away from crimp on connectors and stick with the RG-214 mil spec double
shielded cable. I use one here...
Eric Lemmon wrote:
>Steve,
>
>I have not experimented with the effects of jumper length, since I usually
>order
>a duplexer made for a specific repeater pair, and merely verify its operation
>upon receipt. You might contact Sinclair Tech Support directly for answers, or
>perhaps other list members can elaborate.
>
>Were I doing this myself, I'd do exactly what you suggest, using silver-plated
>connectors with gold-plated pins, while compensating for the differing velocity
>factors between RG-214/U and RG-400/U.
>
>73, Eric Lemmon WB6FLY
>
>Steve Rodgers wrote:
>
>
>
>>Eric,
>>
>>Thanks for the detailed response. The velocity factor is .66 for RG-214 vs.
>>.695 for RG-400. So, if the length isn't supercritical, couldn't I just use 14
>>inches tee center to tee center for my RG400 jumpers?
>>
>>What does the length of the cables between cavities affect in the duplexer
>>system? I seem to vaguely recall it had an effect on the bandpass to band
>>reject slope and the position of the notch (separation?) , but I'm not
>>completely sure of this.
>>
>>Steve
>>WA6ZFT
>>
>>
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