AeroElectric-List Digest Archive

Sat 09/28/13


Total Messages Posted: 5



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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    Time: 06:44:57 AM PST US
    Subject: Re: Multiplexing 7-segment LED displays
    From: "Eric M. Jones" <emjones@charter.net>
    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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    Time: 10:24:25 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    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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    Time: 06:14:54 PM PST US
    Subject: W.L. Gore replacement for RG-400
    From: Christopher Cee Stone <rv8iator@gmail.com>
    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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    Time: 08:40:53 PM PST US
    From: Bob McCallum <robert.mccallum2@sympatico.ca>
    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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    Time: 09:47:07 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    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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