Navcomm Installs:More Than Radios

摘要

Whether for backing up a GPS navigator or serving as a primary and one-and-only radio, the digital navcomm radio is far from extinct. It could actually be making a comeback. That's because there have been increasing concerns of GPS signal outages, and manufacturers and avionics shops tell us that's creating more interest in VHF navcomm installations. Honeywell even recently released a new model to replace the popular analog KX155. Last year Trig Avionics brought a fresh digital model to the market and it's been a brisk seller. But regardless of which model you choose, don't underestimate the wiring and antenna work that can sub- stantially increase the invoice. You'll also have to deal with CDI compatibility and that could mean spending big bucks on a small EFIS. In this article we'll scan the market for new self-contained navcomms and look at some installation snags that might influence the decision.