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		bbreckenridge(at)gmail.co Guest
 
 
 
 
 
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				 Posted: Tue Apr 24, 2007 9:15 am    Post subject: RG-58au/cu RG-400u | 
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				I've been reading Mr. Nuckolls' publication and viewing some of the websites of those well ahead of me.  I understand that RG-400u is 8x more expensive and very important in the panel for the sake of interference.  I could use RG-400u out the wings as well for wingtip antennae, but it appears to be an overkill.  IF for some reason I have 2 antennas in one wingtip and want to run separate coax lines out to them, can I use 2 lines of RG-58au side by side without some type of interference between them? 
   
  Bruce
  40018 wings
   [quote][b]
 
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		jesse(at)saintaviation.co Guest
 
 
 
 
 
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				 Posted: Tue Apr 24, 2007 11:03 am    Post subject: RG-58au/cu RG-400u | 
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				I am no expert on this, but I imagine it would depend on what the antennas are for.  If one is a NAV antenna that just receives and one is a Marker Beacon antenna that just receives, I think you should be fine.  If one were a NAV and the other a Transponder, than at least the transponder should be the good stuff (I think it is standard that at least the transponder antennae use the good stuff, and the next in line would be the COM’s, then the NAV).  Marker Beacon can be the cheaper stuff, but I use the RG-400 for everything else.  
    
 Do not archive  
      
 Jesse Saint  
 Saint Aviation, Inc.  
 jesse(at)saintaviation.com (jesse(at)saintaviation.com)  
 www.saintaviation.com  
 Cell: 352-427-0285  
 Fax: 815-377-3694  
         
   
 From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of bruce breckenridge
  Sent: Tuesday, April 24, 2007 1:13 PM
  To: rv10-list(at)matronics.com
  Subject: RG-58au/cu RG-400u  
   
      
 I've been reading Mr. Nuckolls' publication and viewing some of the websites of those well ahead of me.  I understand that RG-400u is 8x more expensive and very important in the panel for the sake of interference.  I could use RG-400u out the wings as well for wingtip antennae, but it appears to be an overkill.  IF for some reason I have 2 antennas in one wingtip and want to run separate coax lines out to them, can I use 2 lines of RG-58au side by side without some type of interference between them?   
     
    
     
 Bruce  
     
 40018 wings  
   [quote]   [b]
 
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		Tim Olson
 
 
  Joined: 25 Jan 2007 Posts: 2882
 
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				 Posted: Tue Apr 24, 2007 11:14 am    Post subject: RG-58au/cu RG-400u | 
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				I would think that would work fine, but unless you actually
 want to plan for connectors inline, it's not worth doing it
 if your original plan was to run a solid uncut run of RG-400.
 
 A) The connectors add loss
 B) The connectors cost $$
 
 So really, if you're going to run a solid run, I'd say just
 do it with either one.  If you're going to connector it
 in the center, well, then that's up to you, but I'd
 say that with strobes in the wings, you're just as likely
 to get interference in those cables in the wings as you
 are under the panel.  (That said, the risk of interference
 isn't that high anyway).
 
 In the grand scheme, RG-400 is a drop in the bucket of the
 airplane though...although a bucket is filled with many little
 drops too, depending on how you want to look at it.
 
 Tim Olson - RV-10 N104CD - Flying
 do not archive
 bruce breckenridge wrote:
  	  | Quote: | 	 		   I've been reading Mr. Nuckolls' publication and viewing some of the 
  websites of those well ahead of me.  I understand that RG-400u is 8x 
  more expensive and very important in the panel for the sake of 
  interference.  I could use RG-400u out the wings as well for wingtip 
  antennae, but it appears to be an overkill.  IF for some reason I have 2 
  antennas in one wingtip and want to run separate coax lines out to them, 
  can I use 2 lines of RG-58au side by side without some type of 
  interference between them?
   
  Bruce
  40018 wings
  
 
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		stein(at)steinair.com Guest
 
 
 
 
 
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				 Posted: Tue Apr 24, 2007 12:19 pm    Post subject: RG-58au/cu RG-400u | 
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				Well...my take is why mix & match?  So you'll save about $50 or so over that
 35-50 feet of cable.....in the scheme of your $180K-$250K airplane it's not
 much.  Why even goof around with the 58 at all?  It's not recommended by any
 major aircraft manufacturer, nor most avionics shops. Go with the RG400 all
 the way and be done with it.  Easy decision, and no wondering about
 connectors, connections, mixing & matching, etc..
 
 Cheers,
 Stein.
 
 [quote]--
 
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