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Peters RV7A
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Date: 8-4-2012
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Number of Hours: 13.00
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Manual Reference:
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Brief Description: More Wiring
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Decided to redo my headset and mike jacks wiring as I wasn't real happy with the shielding cable setup joining to the plug points. Got onto the internet and found a great site on doing this correctly and professional looking. Instead of twisting and trying to solder the shielding there are these heatshrink tubes which have a small bit of solder already in them, you just have your length wires already done approx 2.5" , slit the plastic covering slide the outer cover down so there is approx 1/4" shielding showing, solder the end of a length of green cable slide the special solder heatshrink over the bare shielding, slip the green cable underneath and using a heatgun, shrink the sleeving and cable together and hey presto a great join between shielding and green earth wire and much easier to solder a flexible cable to the sockets. Also having a nice engraved plate to mount the sockets into situated between the seats. This way the sockets are not mounted directly to the aluminium airframe.
I also wired in my new Garmin SL40 transciever, had the pre-wired harness, but decided to do away with this as I had a few extra wires to fit into the 15 pin plug. I will earth/bond my shielding from the antennae to the fuselage, as this should give better grounding than just the 4 antennae mounting screws into my doubler plate on the airframe.
I have two fuse box assemblies and I want one dedicated to purely all the avionics, so I have wired in a 30 amp relay which will control the avionics and the master avionics switch will turn on the relay, this way the main switch doesn't have excessive current flowing through it and only controls the relay. So then I can turn on all avionics at once if so desired.
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