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Re-GPS Antenna Coax Length

 
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w_sweet(at)comcast.net
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PostPosted: Tue Nov 27, 2007 3:14 pm    Post subject: Re-GPS Antenna Coax Length Reply with quote
When in doubt, go to the front end of the horse.
Straight from the "horse's mouth" (Garmin installation tech rep 913-397-8200); there is no requirement for either the GNS430 or GNS530W minimum or maximum coax cable length.
Wayne
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schaefer(at)rts-services.
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PostPosted: Tue Nov 27, 2007 4:15 pm    Post subject: Re-GPS Antenna Coax Length Reply with quote
There is a required DB loss between the WAAS receiver and the antennae, with good connectors and good coax that works out to a nominal coax length.
I am sure you might be able to meet it with a short cable and poor workmanship … But how long will it stay in specs.


From: owner-avionics-list-server(at)matronics.com [mailto:owner-avionics-list-server(at)matronics.com] On Behalf Of Wayne Sweet
Sent: Tuesday, November 27, 2007 5:13 PM
To: avionics-list(at)matronics.com
Subject: Re-GPS Antenna Coax Length


When in doubt, go to the front end of the horse.

Straight from the "horse's mouth" (Garmin installation tech rep 913-397-8200); there is no requirement for either the GNS430 or GNS530W minimum or maximum coax cable length.

Wayne
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mike(at)ferrer-aviation.c
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PostPosted: Wed Nov 28, 2007 4:50 pm    Post subject: Re-GPS Antenna Coax Length Reply with quote
So, I guess we can all agree, there IS a requirement for coax loss (i.e., coax length) although it sounds like they reduced the minimum from 13' to 6.5'.
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