Re: [Repeater-Builder] 6M duplexers - HELIAX

[Neal Newman]

I have a machine On 52.71/51.71... any duplexers out there???  I have Been running split site On my property for years now  and  3 acres seperation just does not cut it... I have already cut 6  lengthsof 1 5/8 hardline  But thats as far as I got... I would kill for a set of 6 meter Duplexers  every one I have seen on Ebay  I have lost the bidding  besides $2k for a set  is just way Nuts.  Neal ka2caf Mike Perryman wrote: I wish they were on 51.4 in/51.9 out... wouldn't hurt to have a spare set. And no, they don't have enough adjustment built-in without the suppression numbers going in the toilet. First notch I made ended up just below 51.7, and just couldn't get good numbers when I moved it that far... so I cut a little off the bottom til I got where I needed to be. Someone who has that pair should grab them... as John says.. they work very well! 73's Mike At 09:41 AM 03/17/2004 -0500, you wrote: I built some notch filters out of 1-5/8 heliax as described on WB5WPA's page. They worked very well, only I was having some problems with drastic changes in temperature. The would be fine in an air-conditioned and heated environment. I have decided to go with a vertical separation instead of duplexers for my project, based on the ideal tower situation I have been handed that would not have given room for such bulky items anyway. But I would recommend this type of design for anyone who wants to build a duplexer the easy way. Tools needed: soldering gun, hack saw, frequency generator (I used the MFJ antenna tuner, and did final tuning with exciter power from an old mobile.) Spectrum monitor if you know where to get one, but you can use a receiver with an attenuator and a s-meter. Check out the website that was mentioned earlier: http://www.dallas.net/~jvpoll/dup6m/dup6m.html It told me everything I needed to know. I will be happy to talk with anyone interested in doing this. Heck, I'll even give you a set tuned to 51.7! John Clark - KI4AWK Thomasville, GA [EMAIL PROTECTED] Yahoo! Groups Links --------------------------------------------------------------------- Mike Perryman Cavell, Mertz & Davis, Inc. [EMAIL PROTECTED] Consulting Engineers http://www.cmdconsulting.com 7839 Ashton Avenue K5JMP Manassas, VA 20109 USA (703) 392-9090; (703) 392-9559 fax; DC Line (202) 332-0110 --------------------------------------------------------------------- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/   To unsubscribe from this group, send an email to: [EMAIL PROTECTED]   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.