Re: Duplexer for TKR-720 > "tahrens301" <tahr...@...> wrote: > Anybody have any experience with the duplexers in this > repeater? (I have the repeater, and was wondering if > it worth trying to find one, or go elsewhere).
The VHF "flat pack" duplexers work fine for what they are. If you understand they will provide basic decent repeater performance if you operate them as designed. > Will be running the repeater at 20w, with a 4.55mhz > split. The wider vhf commercial split should make it easier to find a practical flat-pack. I have noticed they tend to perform quite well at about 15 watts, when you rise up above about 15 watts the desense can start to get out of hand. Inter related to the smaller Flat-Pack Duplexer you're probably talking about... size does matter. There's a really small unit similar in size to the typical UHF flat pack and it's a basic rude minimal performer when compared to the noticeably larger flat pack that probably won't fit inside the repeaters bottom case area. If you really want to step up to a next better level... some of the used rack mount notch-pass duplexer units offered on Ebay are a lot better. > I've seen the '$99' specials on e-bay.. would they be > a decent alternative to the OEM duplexer? (I know they > aren't as good as a full-sized duplexer). No one has reported good or bad regarding the Asia Made Clone units you're probably talking about seeing listed on Ebay. I've always done better by searching Ebay for used higher Q units. > This is for a portable repeater - inside a Pelican > box for storage and transport, so trying to reduce > the required space as much as possible. > Thanks, > Tim That makes a difference... you can remove the ears from one of the rack mount units. If you can fit it in the fly-away case then you'd be way ahead of the game. If you're patient on Ebay you can sometimes catch a deal on this type of duplexer... Ebay Item Number: 110486323682 I've caught these units used from prices of $50 up toward $150 is a pretty good deal. back later... s.
