As explained in Long-Distance Phone Microwave Towers, when the first trans-continental microwave relay line was built in the late 1940s, waveguides had not been invented. The towers were big and made of concrete to hold all of the electronics at the top of the tower and they used the KS-5759 Delay Lens Antenna. I found a 1951 image of the 191 foot Chicago Heights tower that still had the Delay Lens Antenna. After waveguides and the KS-15676 Horn-Reflector Antenna was invented, the concrete towers were upgraded with this equipment. A 2009 image of the Goshen, IN tower still has these horns. The economic driver for installing this equipment was long distance calls and network TV. These towers helped distribute the TV signals for ABC, CBS, and NBC across the country. The New York - Chicago segment of the transcontinental service began service Sept. 1, 1950.
Thanks to the magic of digital zoom, I can get a better picture. The picture at the left is at the camera's resolution. After looking at the satellite image obtained from the Long-Lines site, I'm glad I didn't drive around anymore trying to get closer to the tower. This 191-foot tower is surrounded by trees so a clear shot of the tower is not possible.
La Porte, INI missed a turn off IN-39 to get to this tower. So I went with plan B -- my wife taking pictures from the van as I drove west on the toll road. One of the shots came out relatively tree-free. It looks like maybe AT&T is letting the local ham radio club use this 162-foot tower. Glenn Peters has saved me the effort of trying again for the side road because he took several close up pictures in 2009. It looks like the ham radio club has added some more antennas since 2009. (see below)
|Bird's Eye View|
Carol Stream, IL
|Jason Jordan shared|
|At Facebook resolution|
When I compared the picture to a satellite image, I could not believe how much the area has changed. Not only is all of this land now occupied by suburban sprawl, the curve in the track has been removed. I'm sure these towers are long gone.
|Steve McCollum commented|
Steve's comments concerning some grain elevators:
I really like those slipformed concrete structures, both round and square elevators. I also like the square concrete former AT&T Long Lines microwave towers.
Like this one, at Collins, IA.
|From long-lines, which has more info.|
|Gus Rubio commented on a post|
Sublette, IL, tower, just outside of Woodhaven Lakes, a private campground my family used to visit weekly many years ago. Always wondered what it was for back then.
Is this still standing? I looked for it on a satellite map. I did find a Tower Road. But the only tower I saw is a cell phone tower.
Plato and Tower Roads, Hampshire, IL
My picture is towards the Northeast. This streetview is towards the Northwest. This Google Photo caught the tower with a blue sky and a little different angle.3D Satellite
Several more photos are in the trip report.