[BC] Class "D" AM Towers

[Scott Fybush]

PeterH wrote:

> 1400 is also not 225 degrees, also more like 215, but it is diplexed  
> with 550, and it has a ground system sized for 550, so what would  
> normally be a tower with an efficiency of about 420 or so has an  
> efficiency of 440 mV/m/kW at 1 km, which is the efficiency of a 225  
> degree tower.

Unless something has changed in Phoenix in the last few months since I 
was there, KSUN 1400 and KFYI (ex-KOY) 550 are *not* diplexed. KFYI is 
just west of 36th Street south of Southern Ave, while KSUN is two blocks 
east at the end of 38th Street, also just south of Southern.

The KFYI tower, ASRN 1007948, is 108 meters tall, 70 degrees at 550. KOY 
moved there in 1967 after losing a much better site at 12th and 
Camelback to development. (There's a car dealership there now.)

The KSUN tower, ASRN 1219664, is 129 meters tall, which is indeed 215 
degrees at 1400. It has been there since at least 1965. I don't know why 
it's as tall as it is - though apparently the 1400 facility, then known 
as KXIV, was a pretty well-funded operation in the mid-sixties. Dick Van 
Dyke was a co-owner.

s