Joe, It's a small world! I have exactly the same Motorola duplexer, that came mounted on the back of a 100 watt MICOR MSY repeater previously used by Union Oil Company. My unit is marked TFE6080A SP300, and was tuned to 451.675/456.675 MHz.
This unit comprises six helical resonators in a notch-only configuration, and is known as a "Compact Base Station Duplexer." A friend of mine who is a Motorola technician tried to get information on this unit from the factory, but found nothing. Although it is more rugged and has a deeper notch than the typical mobile notch duplexer, it has practically no bandpass action and is therefore not suitable for use at a congested site unless additional bandpass cavities are employed. The SP300 marking on my unit suggests that it was not a standard production item, and may account for the lack of available information on it. The photo in the link you provided seems to show a faint "SP" after the model number... true? 73, Eric Lemmon WB6FLY Joe wrote: > I found this UHF BP/BR duplexer in back of some stuff while I was cleaning the shack: > http://users.adelphia.net/~k1ike/UHFbpbr1.JPG > Anyone have an ID on this one? It is marked TFE6080A and is mounted on a 19" > rack plate. > > 73, Joe, K1ike > > > Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

