![]() These are sources of noise, as are strobe power supplies, panel lamp dimmer systems, autopilot servos, blowers, and even antenna cables. In addition to shielding, it is vital to keep the intercom wiring away from the really big wires for the alternator and power distribution. The noise signals happen to be in the audio range, so no amount of filtering can adequately remove them without loss of fidelity. If not properly shielded, and isolated from airframe ground, the audio signals can fall prey to the large noise signals present in the airframe itself. Because of the amount of power PS Engineering systems put in the headphones, we need to have shielded wires, which are properly terminated. ![]() No intercom can work well if not properly wired. ![]() ![]() The MOST important part of any intercom is the installation. However, if properly installed with a nominal electrical system, PS Engineering audio systems should reject most of the electrical noise, for a fairly quiet headset environment. It also allows us to hear electrical noise that used to be masked by the mechanical noise. The addition of a good quality intercom, and active noise canceling headsets does wonders for removing mechanical (wind, engine, etc.) noise.
0 Comments
Leave a Reply. |