Doing some research I have found that each interconnecting jumper must
be an electrical 1/4 wave or performance suffers. The jumpers
attribute 6.5dB each to the isolation of the duplexer. I havn't
gotten around to replacing the RG-214 jumpers on my set of 2M cavitys
but it may help my performan
At 01:35 AM 4/13/2005 -, you wrote:
>
>I am not sure if anyone else has had this problem, but with these
>duplexers I have had a hard time with tuning a pair of cavities with
>the stock phasing lines. I seem to be getting "double peaks" and the
>peaks just won't pull together down around 4
derek_mcintyre wrote:
>I am not sure if anyone else has had this problem, but with these
>duplexers I have had a hard time with tuning a pair of cavities with
>the stock phasing lines. I seem to be getting "double peaks" and the
>peaks just won't pull together down around 443 MHz. I went and
The T-1504 works very well if clean. The notches are difficult to tune
perfectly if the inside of the cavity has been exposed to moisture. I
have opened up cavities and cleaned with steel wool and coated with
light grease and they tune much better.
I am not sure if anyone else has had this
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