Re: [Repeater-Builder] Re: VHF Duplexer needed

[Kevin Custer]

Hi, <[EMAIL PROTECTED]> wrote: I'm building a VHF high band repeater... on a tight budget. I have everything except a duplexer. I need some recomendations on cheap abundant duplexers that will do the 600Khz split. Max power I'll be using is 50 - 75W so recomendations for some Monster wacom or TXRX duplexers that can handle a bazilion watts do not need to be posted, besides, I probably wouldn't be able to afford ANY used wacom or txrx duplexer sets. Here is some reality: There is no such thing as cheap abundant duplexers for 600 kc 2 meter repeaters. If you cannot afford a good duplexer for your repeater, maybe consider taking up a different part of the hobby.  Sorry to be so blunt, but too many folks think you can kludge a repeater system together with junk and have a really good working system.  While there are a few of us here on the list that are likely talented enough to make something work from junk, that isn't the rule, rather the exception.  Do yourself a favor and spend the money on a damn good duplexer as you will kick yourself every time you have desense you cannot overcome because of inadequate duplexer isolation. Dave, Others may have different suggestions, but in my view, 50 to 75 watts is a high powered repeater. I agree with Dave's viewpoint.  A 50 or 75 watt repeater is only a few dB from 100 watts, so a really good duplexer is needed for this power, especially if you are running a solid-state exciter and PA that is crystal controlled and has multiplication.  A PLL GE Mastr II radio set will require less duplexer isolation, so maybe consider 'selecting' the radio equipment to better the result. Kevin Custer List Owner Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.