Home
New  Equipment
Used Equipment
Our Office
What We Do
Web Links
Tech Tips
Engineer's Log
Friends
Personal
Contact Us

Radio Broadcast Technical Consulting and Sales

Customer of M. W. Persons

 
KFMC FM 106.5 MHz/100 KW/371 feet
KSUM AM 1370
KHz/1 KW Day and Night

Fairmont, Minnesota
The phone number is 507-235-5595
http://www.kfmc.com
and http://www.ksum.com


March 9, 2007:  It all started with an early-spring thunderstorm in Fairmont, MN.  Before long, we got a call from Lee Bramer, Chief Engineer of KFMC and KSUM Radio.  The FM transmitter had gone down and it showed extremely high reflected power when it was brought back up.

Click on any photo to see a larger image  

A tower crew showed up to assess the situation.  They were soon on the tower.

Click on any photo to see a larger image

This sure looked like trouble.  Soot was everywhere in the FM antenna.

Click on any photo to see a larger image   

The antenna bays (photo on left) were brought down to the ground. 

Mark Persons and his assistant Jim Barry put two antenna bays together and tuned them to 106.5 MHz.  Jim drove this temporary antenna to Fairmont and the tower crew put it up (photo on the right).  The coverage was somewhat less, but KFMC Radio was on the air while parts were ordered and shipped from Electronic Research to repair the original antenna.

Click on any photo to see a larger image   

Some of the damaged antenna parts including the center-feed T section are on the ground for inspection.

Click on any photo to see a larger image  

More damage from arcing on this one. 

Click on any photo to see a larger image 

Nylon insulators did not fare well either.

Click on any photo to see a larger image  

Here are the repaired antenna bays just before they were reinstalled on the tower.

Click on any photo to see a larger image   

To top off the work, a Nott, Ltd Eagle's Nest static dissipater was added to the tower to help drain static charges off the tower when electrical storms are near. 

The repair project went well.  All in all, it took a week to get everything working again.

Click on any photo to see a larger image


Letters from distant listeners

The stories go on and on.  Stop in again sometime.  I'll leave the soldering iron on for you. 
Mark W. Persons
  
Ham WMH

  Email Mark Persons:  teki@mwpersons.com       

     Return to Home Page

page last edited 02/22/2016