Nope. Both braids are silver-plated, so there's no dissimilar metals, and no foil to rub against. RG-214/U and RG-400/U are often specified for duplexers.
73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Larry Horlick Sent: Sunday, March 07, 2010 2:55 PM To: [email protected] Subject: Re: [Repeater-Builder] Re: LMR Cable Any problems with RG-214 or RG223 for duplexers/multi-couplers/combiners? lh On Sun, Mar 7, 2010 at 5:50 PM, Dan Saputo <[email protected] <mailto:[email protected]> > wrote: well-documented and caused mainly by the use of foil shielding as in the lmr series. gets worse as cable ages and internal braid-foil contact degrades. Although not as big of a problem with lmr due to an insulating layer over the actual foil. beware of belden 9913 and lmr look-alikes. trouble when used duplex. Dan k8plw --- On Sun, 3/7/10, Chuck Kelsey <[email protected] <mailto:[email protected]> > wrote: From: Chuck Kelsey <[email protected] <mailto:[email protected]> > Subject: Re: [Repeater-Builder] Re: LMR Cable To: [email protected] <mailto:[email protected]> Date: Sunday, March 7, 2010, 4:56 PM Passive Intermod. In other words, it tends to be a source in which intermod can be generated easily. Chuck WB2EDV ----- Original Message ----- From: "rffun" <radio...@her. forthnet. gr <http://us.mc560.mail.yahoo.com/mc/compose?to=radiocom%40her.forthnet.gr> > To: <Repeater-Builder@ yahoogroups. com <http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups .com> > Sent: Sunday, March 07, 2010 3:33 PM Subject: [Repeater-Builder] Re: LMR Cable > <LMR and similar cables are not rated for low PIM> > What exactly do you mean by PIM ? > rffun > > --- In Repeater-Builder@ yahoogroups. com <http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups .com> , Larry Horlick <llhorl...@. ..> > wrote: >> >> Indeed. I'll read the archives. Thanks. >> >> 73 >> >> On Sun, Feb 28, 2010 at 8:59 PM, Chuck Kelsey <wb2...@...> wrote: >> >> > >> > >> > The subject comes up on this list about every other week. I can only >> > assume >> > you are new. >> > >> > LMR and similar cables are not rated for low PIM, a fact verified by >> > the >> > manufacturer. >> > >> > Chuck >> > WB2EDV >> > >> > >> > >> > ----- Original Message ----- >> > *From:* Larry Horlick <llhorl...@. ..> >> > *To:* Repeater-Builder@ yahoogroups. com <http://us.mc560.mail.yahoo.com/mc/compose?to=Repeater-Builder%40yahoogroups .com> >> > *Sent:* Sunday, February 28, 2010 8:49 PM >> > *Subject:* Re: [Repeater-Builder] Micor Stock Power Supplies >> > >> > I've never heard of it. As an installer, I'm always under pressure to >> > use >> > less expensive feedlines than the venerable Heliax, and I had often >> > considered LMR, but never actually succumbed to the temptation. This is >> > interesting information. Is this a well documented phenomenon? >> > >> > Anyone else like to chime in on this... >> > >> > Larry >> > >> > >> > >> > >> > >> > > > > > ------------ --------- --------- ------ > > > > Yahoo! Groups Links > > > ------------ --------- --------- --------- --------- --------- - No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2728 - Release Date: 03/07/10 02:34:00
