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bbreckenridge(at)gmail.co
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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
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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: 2872
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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
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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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