[BC] Franklin Antenna - KTTO (ex-KREM)

[Bill Harms]

I am trying to figure out what is going on with KTTO's (ex KREM-970) 
taller antenna. It has three insulated sections.  The lowest section is 
305 feet tall and at night the upper portion of the tower is used with a 
second tower also at 305 feet to make a directional array. However, the 
upper portion is sectionalized twice. (maybe three times depending how 
you look at it.). There is a top-mounted TV array that is not used and a 
side mounted FM array that is also not being used. The tower's total 
height is 712 feet, including the TV array. The AM portion is 663 feet 
high. However, there is a insulating joint at 487 feet. From what I 
understand, the TV and the FM are no longer being used as axillary 
units. The main TV and FM transmitter is located else.

My questions are: Why are there three sections for the AM portion? If 
this is a Franklin antenna, why are the dimensions unbalanced?

I have other questions about this antenna set up, but they will wait.

Please refer to the URL below.
http://radiotowers.info/wa/spok/krem/tower/

Bill Harms
Radio Station Historian.