Codan Radio Radio Repeater Systems Training Guide - Manual (Page 69)

RADIO REPEATER SYSTEM | TRAINING GUIDE
Appendix G: Examples of Duplexer Data Page 61
APPENDIX G: EXAMPLES OF DUPLEXER DATA
On the following pages are isolation and insertion loss characteristics for a variety of duplexers.
The 150 MHz duplexer exhibits 70 dB isolation with 1.5 dB insertion loss at a minimum frequency
separation of 500 KHz. Isolation and insertion loss fi gures would improve greatly with larger separations.
Isolation of 70 dB and an insertion loss of 0.8 dB may be possible at a spacing of 3 MHz.
The 400 MHz duplexer exhibits 75 dB isolation with 0.8 dB insertion loss at a minimum frequency
separation of 5.0 MHz.
The 800 MHz duplexer exhibits 70 dB isolation with 1.0 dB insertion loss at a minimum frequency
separation of 3.6 MHz.