[Repeater-Builder] Duplexer tuning with Return Loss Bridge

[albemarle7]

Gentlemen,     Will be starting a new science project setting up Wacom 641 on 2 meters. Have a Rohde & Schwarz monitor receiver with S meter, DB pads, dummy loads etc. Plus an IFR 1500. But I see comments on a unit called a 'return loss bridge' for the IFR. How important is this return loss bridge and what is it's claim to fame? Do I really need one? Also have an old HP 8554B Spectrum Analyzer. Thanks, Gary  K2UQ   YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.