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Formula Mice = Time *?

Years ago I was working on a promising formula for determining the number of mice in a transmitter to determine the last time it was opened for maintenance.

I found 18 mice in an FM transmitter at Anthoston, KY. I knew for sure the station, WGBF-FM now, had been for sale for over 3 years and the Staff had little interest in extra work. A similar find was at Scipio, Indiana. Regular finds of 6 to 10 in a transmitter were regular.

The worst ever was in a remote control at WWWY Columbus, Indiana. A Burke had a nest of mice in it. The computer connectors weren't always sealed on the units, leaving space for ingress of mice. Add babies. After I saw little red eyes looking at me in the semi darkness. I opened the case, watching for any mice that left. (Counted 4). After opening I found 2 dozen small and dead babies. It was packed full of tube insulation from an Econco box. The smell was RIPE. When I say packed it was packed.

IN addition to long times between maintenance there are other factors. Sometimes a transmitter is in a field of soybeans or corn (Like Scipio, IN). Anthoston was in a grass covered field near houses. The Columbus site was near a wooded area off the Interstate.

I figured some sites were never going to be reliably sealed even if they were designed well. Some will have mice as they are in a grain field. Some will have mice because they generate heat the mice are drawn to.

What are your mice stories? Other than mothballs I haven't seen ways that stop them cold. In Columbus, Indiana WCSI FM had snakes in addition to the mice. The site near the other previously mentioned site was in a wooded area in a quonset hut, built after WW2.
 
I picked up a Burke unit at a site several years ago. It just started shutting the transmitter off for no reason. I pulled it from the rack and set it in the back seat of my car. It stayed there over night. The next morning on the way to work a large mouse ran across the front seat. I am glad I was driving that car and not my wife. She would have jumped out and let the mouse have the car.
It seems like mice like the opening in the Burke units.
 
The steel doors on the buildings had open bottoms and they’re filled with styrofoam. The door sweeps were rubber and not fitted right. So the mice started building homes inside the doors preferring to nest just above the deadbolts. First thing you notice is the building’s filled with little styrofoam balls. Then the locks start to jam. Ended up making door sweeps out of heavy gauge copper strap. That’s put an end to the smelly destructive mess there.
 
Good stories. I once found a fried squirrel inside a Collins 1kw rig. He/she had been trying to escape when it hit the HV. It took a shovel to remove the varmint as it was really wedged in a tight spot.

Squirrels are OK, so are mice. Nothing is worse to remove than a snake. Even though it has "ceased to be", it still creeps me out. After all, it could be a zombie snake....
 
While I have battled my share of mice in remote transmitter sites, I had a quite different
experience with another species. I had an almost new Harris HT5 FM transmitter go off the air on a bright sunny day. I arrived at the site to find a flock of about 20 Wrens had poked a hole through some insulation on the side of the building and made their way in. After flying around for a while, one of them landed on the front panel circuit breaker dumping the transmitter.

Judging from the poop piles, they had been in the building for about two days. After resetting the breaker and a good laugh, I shooed them out and cleaned up ther mess.
 
Did consulting work for WCLI AM/FM old site in the hill in Corning, NY and WXLO-FM in the Leominster Mass State forest, both sites were loaded with rattlesnakes and copperheads.
 
One site had a station that diplexed with us and when their HD was on we had no mice. When it was off we did. HD proved to be useful for someting on AM.
Stu
 
ChiefEngineer said:
In Columbus, Indiana WCSI FM had snakes in addition to the mice. The site near the other previously mentioned site was in a wooded area in a quonset hut, built after WW2.
Not one to split (mouse) hairs, but it was WCSI AM where the snake crawled inside the Gates 500H and got across the high voltage terminal and the result was terminal--for snake and transmitter back in '77. Nothing separates the men from the boys like removing two halves of a snake from a transmitter and cleaning up the 'point of impact'.
 
I've got my "mice in the Burk" story also. I had Burk on the telephone (tucked between shoulder and ear) when I opened the cover to find several beady eyes staring at me, and a couple of mice departing with alacrity. I think I dropped the Burk; I know I dropped the phone. I still don't know what I said, but when I picked the phone back up, the Burk tech was laughing his ass off.
 
Exactly why I keep Cat Units at transmitter sites (made by Mama Cat, Inc.). Gets the mice. Siamese being my favorite models. Also keeps the mice out of the Cat5 cable too. Purrs nicely too on the engineer's lap)
 
There was a Cat Unit at one of the FM sites (when it was manned). Like to piss into the BTF20E1's air inlet.
Owl just about terminated that Cat Unit one night. Never went to the hill after that.
And the mice played on....
 
That cat had good taste at least. RCA was good stuff. Tuned for least smoke was reliable. I've taken care of at least one transmitter the cat unit should have pissed on and shorted directly to ground, don't pass go.
 
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