Q: For use with the co-pilot's connection to the aircraft's mic/phone connections, does this have any impact on electric load, avionics, or any other considerations for a 1983 Seneca II (PA34-200T)? or for example, would it reduce the quality of radio communications, for the pilot, with ATC?
A: As more headsets are plugged in to a single set of jacks, those jacks provide a bias voltage to power the microphone. As more and more headsets are put in-line, the voltage obviously drops and the last headset gets less bias voltage than the first. However, this usually is not a problem with only 3 headsets plugged in to one set of jacks. When you start getting to 5 and 6 headsets this may be a factor. If you have additional technical questions on how this is wired, I would have you contact Pilot USA (the manufacturer) and see what they have to say. You can reach them at Email: info@pilot-usa.com / Phone: 888-467-4568.
Q: How long are these cables. Ex. From the main input to first headset jack, from that jack to the next, and that jack to the next?
A: Hello, The cable, starting at the input male plugs, to the first headset jack is 11". From that jack to the next is 66" and that jack to the last one is also 66".