The DB4003 is a three cavity bandpass duplexer with a specified operating range of 148 to 174 MHz and a TX to RX separation of 5 MHz or more.
With 30 dB of suppression in the one cavity branch and 50 dB of suppression in the two cavity branch, even at five MHz of separation, this unit would probably only be suitable for some tube type repeaters. ------------------------------------------------------------------ --- In [email protected], "ka7zau" <[EMAIL PROTECTED]> wrote: "...I'm looking for some duplexers for my repeater. anybody have any info. on Mfg: Decibel Products Inc. Model: 4003 Serial No: 2205. Would this work on my repeater of 146.895 with a (-)146.295 600mhz separation. ..."
