Today's Message Index:
----------------------
1. 06:44 AM - Re: Multiplexing 7-segment LED displays (Eric M. Jones)
2. 10:24 AM - Re: Re: Matronics Email List Wiki! (Robert L. Nuckolls, III)
3. 06:14 PM - W.L. Gore replacement for RG-400 (Christopher Cee Stone)
4. 08:40 PM - Re: W.L. Gore replacement for RG-400 (Bob McCallum)
5. 09:47 PM - Re: W.L. Gore replacement for RG-400 (Robert L. Nuckolls, III)
Message 1
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Subject: | Re: Multiplexing 7-segment LED displays |
http://lmgtfy.com/?q=LED+displays+from+the+PIC
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=409417#409417
Message 2
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Subject: | Re: Matronics Email List Wiki! |
At 11:29 PM 9/27/2013, you wrote:
>
>i would like to appreciate you for sharing such a great info with us
> :o
>
>--------
>andy
Thank you sir. I'm pleased that you find
value in the work.
Bob . . .
Message 3
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Subject: | W.L. Gore replacement for RG-400 |
Gore RG316 is much smaller and lighter than RG400... probably a lot more
$$$. I haven't found a source for small quantities or even a sample for
that matter. Has anyone any info as to a source?
Chris Stone
RV-8
W. L. Gore & Assoc. Inc. has introduced a new, lighter-weight RG coaxial
cable<http://www.gore.com/en_xx/products/cables/coaxial/optimized_RG_cable.
html>
for
aircraft communication and navigation systems, providing significant weight
savings without compromising performance. When compared to standard RG
coaxial cables, these new cables reduce operating costs because they are as
much as 20 percent lighter with a 15 percent smaller diameter. This smaller
and lighter profile coaxial cable still meets the stringent electrical and
mechanical requirements of MIL-T-81790 and EN 3475-503. The cables
engineered for electrical impedance of 50 and 75=C3=8E=C2=A9 also exceed th
e
electrical requirements of MIL-C-17G.
The special cable design of Gore's new RG coaxial cables facilitates easier
routing and improved abrasion resistance for the cables. The jacketing
material used in the cable's construction significantly reduces size while
maintaining shielding effectiveness, controlling impedance, and
withstanding operating temperatures ranging from -65 to 150C.
[image: Gore's New, Lighter-Weight RG Coaxial Cable]
RG316
GORECable nom. diameter2.54 mm
0.100 inch2.18 mm
0.086 inch2.49 mm
0.098 inch2.07 mm
0.082 inchWeight160 g/m
10.8 lbs/1000ft12.4 g/m
7.96 lbs/1000ft18.0 g/ma
12.2 lbs/1000ft12.7 g/m
8.13 lbs/1000ftJacket materialFEPEngineered FluoropolymerFEPEngineered
FluoropolymerOperating temperature range-65=C2=B0C up to 150=C2=B0C
-85F up to 302F-65=C2=B0C up to 150=C2=B0C
-85F up to 302F-65=C2=B0C up to 150=C2=B0C
-85F up to 302F-65=C2=B0C up to 150=C2=B0C
-85F up to 302F*Property**RG179
Standard*RG179
GORERG316
StandardRG316
GOREMax. Voltage1200 V1200 V1200 V1200 VCapacitance63.6 pF/m
19.4 pF/ft63.6 pF/m
19.4 pF/ft96.43 pF/m
29.4 pF/ft96.43 pF/m
29.4 pF/ftImpedance75 +3/-3 =CE=A975 +3/-3 =CE=A950 +2/-2 =CE=A950 +2/-2
=CE=A9Attenuation
typical/max
@ 100 MHz min/max
@ 400 MHz min/max
@ 1.0 GHz min/maxdB/100feet
8.0/9.2
15.5/21.0
26.7/30.7dB/100feet
8.0/9.2
15.5/21.0
26.7/30.7dB/100feet
7.6/11.0
16.0/21.0
26.2/38.0dB/100feet
7.6/11.0
16.0/21.0
26.2/38.0Attenuation typical/max
@ 100 MHz min/max
@ 400 MHz min/max
@ 1.0 GHz min/maxdB/30m
7.9/9.1
15.3/20.7
26.3/29.6dB/30m
7.9/9.1
15.3/20.7
26.3/29.6dB/30m
7.5/10.8
15.8/20.7
25.8/37.4dB/30m
7.5/10.8
15.8/20.7
25.8/37.4
Message 4
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Subject: | W.L. Gore replacement for RG-400 |
Several questions come to mind.
How much weight do you think you=99ll save on the average plane??
(I would suspect almost nothing as the various cables don=99t
amount to much in the first place) Using the numbers in the chart you
provide if you have 250ft of coax in your plane you might save =C2=BD lb
if the fittings weight the same.
What fittings are used for terminating this cable, at what cost, how
readily available and what tools are required for their installation??
Bob McC
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Christopher Cee Stone
Sent: Saturday, September 28, 2013 9:14 PM
Subject: AeroElectric-List: W.L. Gore replacement for RG-400
Gore RG316 is much smaller and lighter than RG400... probably a lot more
$$$. I haven't found a source for small quantities or even a sample for
that matter. Has anyone any info as to a source?
Chris Stone
RV-8
W. L. Gore & Assoc. Inc. has introduced a new,
<http://www.gore.com/en_xx/products/cables/coaxial/optimized_RG_cable.htm
l> lighter-weight RG coaxial cable for aircraft communication and
navigation systems, providing significant weight savings without
compromising performance. When compared to standard RG coaxial cables,
these new cables reduce operating costs because they are as much as 20
percent lighter with a 15 percent smaller diameter. This smaller and
lighter profile coaxial cable still meets the stringent electrical and
mechanical requirements of MIL-T-81790 and EN 3475-503. The cables
engineered for electrical impedance of 50 and 75=C3=8E=C2=A9 also exceed
the electrical requirements of MIL-C-17G.
The special cable design of Gore's new RG coaxial cables facilitates
easier routing and improved abrasion resistance for the cables. The
jacketing material used in the cable's construction significantly
reduces size while maintaining shielding effectiveness, controlling
impedance, and withstanding operating temperatures ranging from -65 to
150C.
Gore's New, Lighter-Weight RG Coaxial Cable
<http://www.designnews.com/photo/285/285938-Gore_s_New_Lighter_Weight_RG_
Coaxial_Cable_A.jpg>
RG316
GORE
Cable nom. diameter
2.54 mm
0.100 inch
2.18 mm
0.086 inch
2.49 mm
0.098 inch
2.07 mm
0.082 inch
Weight
160 g/m
10.8 lbs/1000ft
12.4 g/m
7.96 lbs/1000ft
18.0 g/ma
12.2 lbs/1000ft
12.7 g/m
8.13 lbs/1000ft
Jacket material
FEP
Engineered Fluoropolymer
FEP
Engineered Fluoropolymer
Operating temperature range
-65=C2=B0C up to 150=C2=B0C
-85F up to 302F
-65=C2=B0C up to 150=C2=B0C
-85F up to 302F
-65=C2=B0C up to 150=C2=B0C
-85F up to 302F
-65=C2=B0C up to 150=C2=B0C
-85F up to 302F
Property
RG179
Standard
RG179
GORE
RG316
Standard
RG316
GORE
Max. Voltage
1200 V
1200 V
1200 V
1200 V
Capacitance
63.6 pF/m
19.4 pF/ft
63.6 pF/m
19.4 pF/ft
96.43 pF/m
29.4 pF/ft
96.43 pF/m
29.4 pF/ft
Impedance
75 +3/-3 =CE=A9
75 +3/-3 =CE=A9
50 +2/-2 =CE=A9
50 +2/-2 =CE=A9
Attenuation typical/max
@ 100 MHz min/max
@ 400 MHz min/max
@ 1.0 GHz min/max
dB/100feet
8.0/9.2
15.5/21.0
26.7/30.7
dB/100feet
8.0/9.2
15.5/21.0
26.7/30.7
dB/100feet
7.6/11.0
16.0/21.0
26.2/38.0
dB/100feet
7.6/11.0
16.0/21.0
26.2/38.0
Attenuation typical/max
@ 100 MHz min/max
@ 400 MHz min/max
@ 1.0 GHz min/max
dB/30m
7.9/9.1
15.3/20.7
26.3/29.6
dB/30m
7.9/9.1
15.3/20.7
26.3/29.6
dB/30m
7.5/10.8
15.8/20.7
25.8/37.4
dB/30m
7.5/10.8
15.8/20.7
25.8/37.4
Message 5
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Subject: | Re: W.L. Gore replacement for RG-400 |
At 08:13 PM 9/28/2013, you wrote:
>Gore RG316 is much smaller and lighter than
>RG400... probably a lot more $$$. =C2 I haven't
>found a source for small quantities or even a
>sample for that matter. =C2 Has anyone any info as to a source?
>
>Chris Stone
>
>RV-8
RG316 is a contemporary incarnation of RG174
with modern, high temperature insulation and
double shielding. It's been around for a long
time and is offered from numerous sellers on
eBay. Uses the same connectors/tooling as
RG174.
Popular with consumer WiFi and GPS antenna
manufacturers. About twice the loss as RG400
but cheaper too. 40-75 dollars per hundred feet
roll is the going street price.
Bob . . .
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