Nathan Miller
Pre-takeoff checklist
For those whom may have experience building their own harnesses for the Garmin Audio Panels, I'm installing a GMA 345 and after studying and searching through the installation manual, I can't find provisions for the handheld backup mic.
I wrote it off as unnecessary and moved forward with the install without it. But I notice airplanes on TAP that have a GMA 340/5 with a hand held mic cradled on the center console. So, maybe Ik overlooking something.
Without a separate input for a handheld key (only seeing inputs for the pilot and copilot keys), I can't see how it's supposed to be accommodated without wiring in parallel with the pilot or copilot's headset mic - which seems like it would introduce other problems (impedance mismatch, increase in ambient noise by having 2 open mics, etc).
Should I skip wiring up the handheld mic? Would I miss it? I never use it anyway...
Thanks in advance for the insight and info.
Nathan
I wrote it off as unnecessary and moved forward with the install without it. But I notice airplanes on TAP that have a GMA 340/5 with a hand held mic cradled on the center console. So, maybe Ik overlooking something.
Without a separate input for a handheld key (only seeing inputs for the pilot and copilot keys), I can't see how it's supposed to be accommodated without wiring in parallel with the pilot or copilot's headset mic - which seems like it would introduce other problems (impedance mismatch, increase in ambient noise by having 2 open mics, etc).
Should I skip wiring up the handheld mic? Would I miss it? I never use it anyway...
Thanks in advance for the insight and info.
Nathan