AeroElectric-List Digest Archive

Wed 11/18/15


Total Messages Posted: 4



Today's Message Index:
----------------------
 
     0. 09:45 AM - What's Your Contribution Used For?  (Matt Dralle)
     1. 05:10 AM - Re: ptt isolation (Chuck)
     2. 07:13 AM - Re: ptt isolation (Robert L. Nuckolls, III)
     3. 12:37 PM - Re: ptt isolation (Robert L. Nuckolls, III)
 
 
 


Message 0


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    Time: 09:45:17 AM PST US
    From: Matt Dralle <dralle@matronics.com>
    Subject: What's Your Contribution Used For?
    Dear Listers, You might have wondered at some point, "What's my Contribution used for?" Here are just a few examples of what your direct List support enables... It provides for the expensive, commercial-grade Internet connection used on the List. It pays for the regular system hardware and software upgrades enabling the highest performance possible for List services such as the Archive Search Engine, List Browser, and the Web Forums. It pays for the over 23 years of on-line archive data always available for instant search and access. And, it offsets the many hours spent writing, developing, and maintaining the custom applications that power these List Service such as the List Browse, Search Engine, Forums, and Wiki. But most importantly, your List Contribution enables a forum where you and your peers can communicate freely in an environment that is free from moderation, censorship, advertising, commercialism, SPAM, and computer viruses. It is YOUR CONTRIBUTION that directly enables all these aspects of Matronics List services. Please support it today with your List Contribution. Its one of the best investments you can make in your Sport! List Contribution Web Site: http://www.matronics.com/contribution or, you can send a personal check to the following address: Matronics / Matt Dralle 581 Jeannie Way Livermore, CA 94550 Thank you for your support! Matt Dralle Email List Administrator


    Message 1


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    Time: 05:10:35 AM PST US
    From: "Chuck" <ChuckGauthier@comcast.net>
    Subject: Re: ptt isolation
    I had a conversation with the vendor and was told that relays are the only way to have PTT Cutout. I am putting the FL 760 in my panel and I didn't want to use relays so I developed a way to avoid using relays and still accomplish the same results. It requires using DPDT Momentary Push Button Switches for both Pilot and Co-Pilot/Pax. I paid about $20-$25 for each of the switches. Caveat: Buyer Beware! I have not finished installing it in my panel yet so the circuitry hasn't been tested and confirmed, however, I took the schematic to an avionics shop for their review and they confirmed that it should work. I'm attaching the schematics and info on the DPDT switches I used. Good Luck. Chuck Gauthier Cleanex N183SX (Sonex with a Corvair engine) Cell: (360) 901-7934 <mailto:ChuckGauthier@comcast.net> ChuckGauthier@comcast.net


    Message 2


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    Time: 07:13:16 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: ptt isolation
    At 07:36 AM 11/17/2015, you wrote: > >What relays are recommended for pilot copilot ptt isolation on flightline >fl760 transceivers. Thousands of relays are shown on suppliers web sites >making it hard to pick out a suitable one. >Thanks in advance. >Eugene Pilipanko Joe's advice is solid but I'm curious as to how these would be used in your system. Can you share a link to the wiring diagrams that show the relays? Bob . . .


    Message 3


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    Time: 12:37:26 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: ptt isolation
    At 07:36 AM 11/17/2015, you wrote: > >What relays are recommended for pilot copilot ptt isolation on flightline >fl760 transceivers. Thousands of relays are shown on suppliers web sites >making it hard to pick out a suitable one. >Thanks in advance. >Eugene Pilipanko Gene, When you say PTT isolation, what functionality are you seeking? The radio has two microphone inputs that are simultaneously active. This supports the intercom functionality. When you push the pilot's ptt, are you wanting to quiet the copilot's mic, disable the copilot's ptt, or both. When the copilot's ptt is activated, do you want that source to have priority over the radio . . . in other words, disable the pilot's ptt, microphone or both? Are you intending to use the built in intercom function? Bob . . .




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