The View from the Engineering Department (Part 3 of 3)

by J. R. Mathison


Part one
Part two
Last modification 2013-11-10

Please send E-Mail to: mathison (aatt)

July 1991

The interior of the KSGW - TV transmitter building, looking northeast.
Microwave battery charger at far left, and equipment racks, with parts storage on the wall shelves at upper rear.

A front view of the equipment racks from above the channel 12 transmitter.
Almost out of sight at lower left is the microwave batteries, and out of sight above is the battery charger in view in the photo above at left.
Next is the Lenkurt microwave transceivers, then the Microwave Associates transceivers, and at right, the video and audio processing and monitoring equipment rack.

Looking northwest.
This corner has the workbench, file cabinet, and microwave battery charger at right.
The plywood panel suspended from the ceiling at upper right is a 'sleeping loft'. It has a foam mattress pad, sleeping bag, pillow, and the alarm clock which can be seen at the edge.
Rustic - to say the least!

This is part of one of the two 18,000 watt RF power amplifiers in the Harris BT-35H2 television transmitter.
The tube socket and resonant cavity is at left, and the secondary tuning cavity is at right.


I do not seem to have any pictures of the complete transmitter!
It was in five large cabinets:
visual and aural exciters, aural power amplifier, visual driver, and a pair of 18,000 watt amplifiers for a nominal power output of 35,000 watts at peak sinc.

Behind the transmitter was two more large cabinets, each containing a DC power supply, which supplied the transmitter with the required 7,500 volts of direct current.

A pair of the RCA 8807 tetrodes used in the above amplifier cavities.

As above.

October 1981

The county road on the mountain was sometimes a challenge. This picture was taken in the fall, after melting snow made the road soft and slippery.

Spring 1983

Near the above picture.
Spring time. A field of sunflowers and blue bells.

Summer 1982

Sunrise on the ocean of Wyoming.
The house at lower left belonged to Captain McIntire. He was the captain of an oil tanker operated out of Los Angeles, California. He spent a few weeks on the Pacific, alternating with a few weeks here where he was right at home.

This location was near the county road at about 5,000 feet altitude and was the last house before starting up the steep mountain road.

As above but closer.

Summer 2005

The Sheridan studio of KSGW - TV.
The only editing bay.

The studio was part of a welding shop. It contained the office for the news field reporter, an office for the one person in sales, and a office-shop for the one person in the engineering department.

The news department here consisted of only one field reporter. Usually, only one story per day was edited from here. The major audience was near Rapid City, South Dakota, and the majority of the news time slot featured stories around there.

Part one
Part two
Last modification 2013-11-10
Please send E-Mail to: mathison (aatt)