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SV-Intercom-2S to Dual Icom radio wiring (Read 116 times)
Dec 1st, 2018 at 8:22am

Albertaflyer   Offline
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Alberta

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Hi,
Looking for help with wiring my intercom to dual ICOM's and pilot and co-pilot PTT. Not sure how to wire both PTT into the toggle switch to switch between both radios. Where do the PTT wires from each control stick go to? In the drawing it only shows the PTT (out??) to the toggle switch then to each radio. Any help would be greatly appreciated!
Regards,
Tony
« Last Edit: Dec 1st, 2018 at 8:50am by Albertaflyer »  
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Reply #1 - Dec 3rd, 2018 at 9:03am

RayInGA   Offline
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Richmond Hill, GA

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You'll need a switch like the one linked below. The PTT and MIC wires will be switched to COM 1 or COM 2. You'll use each radio's volume control for the rest.


https://www.aircraftspruce.com/catalog/elpages/minitoggle.php?clickkey=66176


ULTRA-MINI TOGGLE SWITCH MTA-306D Part #: 11-04237
 

Ray Eaker
RV-7A flying since 27 Jan 2017
Dual Skyview 1000T with all available Dynon VFR goodies
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Reply #2 - Dec 4th, 2018 at 8:02am

Albertaflyer   Offline
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Alberta

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Yes, I have the toggle switch, just not sure how the wiring goes. As in the original post, I'm not sure what wires go where. I have Dynon's wiring schematic for the intercom, but it's vague as to where pilot and co-pilot PTT go from the control stick. it only shows one wire coming out of the intercom to the switch. Pretty sure each ptt wire needs to be seperate.
 
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Reply #3 - Dec 5th, 2018 at 10:51am

RayInGA   Offline
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Richmond Hill, GA

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You are on the right track.

Figure 184 on page 16-11 of the install manual (rev AD) should get you there. You'll need the SV-INTERCOM-2S and ICOM radio manuals as well.
 

Ray Eaker
RV-7A flying since 27 Jan 2017
Dual Skyview 1000T with all available Dynon VFR goodies
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