The CI 503 glide slope signal coupler (EDMO# CI-503) is a two-through-hole-mount style coupler with BNC ports
the re-radiating amplifier output port J1 is DC block while the antenna port receives RF and passes voltage upstream to power other devices such as an active antenna
and flight checks during pilot training for FAR Part 141 and Part 61
This power supply (EDMO#VLS10M/220) has a variable 28 volt DC output
It is DC grounded to minimize accumulation of precipitation static and Skydrol and rain erosion resistant
WINDSOCK ONLY/13 X 55, white, brass eyelets, canvas. MODEL380 The CI 503 glide slopeVivid white. Extremely durable with all seams double stitched with polyester thread for toughness, solid brass eyelets in double reinforced throat. Special polyester fabric, tough, but lightweight, plastic coated to resist weather. Nylon ties included. Made by the supplier to the U. S. Air Force, Municipal Airports & Airstrips World Wide.