--- In [email protected], "Mark Tomany" <[EMAIL PROTECTED]> wrote: " I have what I believe is a circulator/isolator that I would like to identify... " ----------------------------------------------
Microwave Associates catalog sheet shows a J2101, that measures 13.0"x4.75"x1.88" Specs: Type: Circulator Power: 150 Watts Isolation: Minimum 70 dB, Typical 75 dB Insertion Loss: 1.2 dB Maximum, 0.9 dB Typical Bandwidth: 450 - 470 MHz The third port should be connected to a 50 ohm termination of continuous power handling capability equal to the transmitter power output. Now all you have to do is put it on the bench and see if its measurements match its specs to determine if is still functioning properly and if it will meet your needs.
