I just made some cables for my repeater to replace the RG-213 between duplexer and radios. The only double shielded coax I could find locally from my "Hook up" was something called Certified Quality Flexi 4XL 8IIA. It looks like a flexible version of 9913 with a stranded center conductor wraped with the poly thread and what looks like 97% outter braid, I don't know if it is silver plated or not. The inner shield will not suck solder so I am assuming it is aluminum. But I put on some teflon and silver plate PL-259s using Kester 2% silver solder and I must say it was the easiest solder job I did on a 259.
The antenna feed will remain RG-213 untill I can find either RG-214 or some 1/4" LDF1-50A, It is only a 15' run. I'll let y'all know how they work out. James <[EMAIL PROTECTED]> wrote: > � > � > > >Foil under braid tends to make noise into duplex systems! The two dissimilar >metals against each other move slightly and noise is made.nbsp; Hardline also >provides better isolation (another aid in preventing things such as PIM, >desense, etc.).nbsp; Noise gets worse at closer split frequencies (ie - 600Kc >split 2 meters, 500/1000Kc 6 meter) > >Inside cabinets, the following are all great (depending on power out)nbsp; >1/4" superflex, 1/2" superflex, RG214 (pref silver), RG142, RG400 (142 and 400 >are very flexible), RG393 (RG8 sized stuff, looks like 142 or 400 >though).nbsp; My 2 meter machine has all RG214 since the runs are short. My >UHF machines all have short RG142 runs, except the high power output from the >amps with 1/2" superflex or RG214. Duplexer to the polyphaser is 1/2" >superflex on all UHF machines. > >hope that answered the questions! > > > >Scott Overstreet wrote: > � OK guys ---Inbsp;hear you all sayingnbsp;that hard line is better but none > of you have said what is the actual problem with 9913 flex or LMR-400. In > other words---What is wrong with a quality foil under braid "100%"shielded > foamnbsp;cable and I'm assuming use between receiver andnbsp; duplexer, > transmitter and duplexer and duplexer and antenna? > nbsp; nbsp;And then the next question that follows is that inside a cabinet > full of stuff where 1/2 inch hard line is just to stiff -----what do you > suggest ---and in this case assume that we are talking about three or four > repeaters----yes, receivers, transmitters, isolators and duplexers all in the > same rack cabinet? > nbsp; Scott > N6NXI > > > > > > > > > > > > > >--------------------------------------------------------------------------------*Yahoo! > Groups Links* > � � � � To visit your group on the web, go to: >http://groups.yahoo.com/group/Repeater-Builder/ >nbsp; � � � � �To unsubscribe from this group, send an email to: >[EMAIL PROTECTED] >nbsp; � � � � �Your use of Yahoo! Groups is subject to the Yahoo! Terms of >Service. > > __________________________________________________________________ Switch to Netscape Internet Service. As low as $9.95 a month -- Sign up today at http://isp.netscape.com/register Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at http://channels.netscape.com/ns/search/install.jsp 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/
