Doug, It has always been my experience that adding two or more cans in series always narrows the bandpass, not widen it. The first can will show a given dB down at x frequency away from the center tune. Adding the second can will decrease the level by the sum of the two at the same x frequency from the center tune.
The more bandpass cans you use in series, the narrower the bandpass. 73 - Jim W5ZIT --- On Fri, 6/27/08, Doug Bade <[EMAIL PROTECTED]> wrote: From: Doug Bade <[EMAIL PROTECTED]> Subject: Re: [Repeater-Builder] Re: Frequency Change do I retune duplexer? To: [email protected] Date: Friday, June 27, 2008, 11:22 AM 4 cans winds up in mhz wide as apposed to khz wide... ( as in an rx preselector, the more cans the wider it is....) Doug KD8B __
