Note: Numbers may vary depending on specific make/model of ILS. But the numbers used are from my personal experience. Sad that such a disclaimer is necessary to prevent trolling.

Instrument landing system Localizer has 14 sets of antennas. Each set has two active and several passive antennas. A total of 28 cables, roughly 120 feet each, run along the 120 foot or so of the array feeding the active antennas. These cables must be cut to specific electrical lengths. A Vector Volt Meter was the tool when I was doing it. It measured the length in degrees of phase. The kicker? The cables were not all the same. Four more cables to the equipment van also had to be phased. All in all we would start with some 4,000 foot of cable which had to be one continuous length to ensure it all reacted the same to the environment. No splices! No pieces! All one cable almost a mile long. And a crap load of N connectors because 1. the cables had to be measured with a connector on each end and 2. when you pulled a connector to trim the cable, you had to put a new connector on. No reuse of connectors.

My Workcenter took 18 days to restore an antenna array which had been center punched by a T-38 aborting a take-off. The Electronic Installation group across town estimated 1 to 2 months to restore it. Being a flight training base, flight ops had to be suspended until the ILS was repaired. We had the manpower, the knowledge and the equipment necessary to do it. 18 days vs 1-2 months saved the Air Force millions in lost training. In the meantime two of my E-3 Airmen took on the task of handling all the daily maintenance, checks and monitoring of three other full ILS systems, a TACAN and a TVOR.

Just one example!