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Channel Master Antenna Advertisement
August 1958 Radio News Article

August 1958 Radio & TV News
August 1958 Radio & TV News Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio & Television News, published 1919-1959. All copyrights hereby acknowledged.

Channel Master is one of the few television and FM radio antenna companies that has survived the evolution from over-the-air (OTA) broadcasting to cable-based and then Internet-based broadcasting. Up until around the end of the last century - which is incredibly two decades ago - a large number of people still relied on rooftop and set-top antennas for program reception. Airwaves continued to get more crowded both due to additional stations being built and the ambient noise level increasing due to many other lower power devices in use. An increasing number of manmade obstacles that blocked and/or reflected signals resulted in many more low signal strength pockets and areas plagued by multipath signal variability compounded the problem. High efficiency antennas with high directivity became more in demand, and often a rotator was used optimize reception. I find myself using the vintage Alliance Model U-100 Tenna-Rotor to redirect my Channel Master CM-5020 antenna to avoid interference from nearby (in frequency) stations that can come in from Toronto, Cleveland, and Buffalo. According to news stories, the worldwide "cable-cutting" trend is being accompanied by a lot of people installing supplementary OTA setups. It's nice to see antennas popping up again - even if most of them are the compact type with integrated preamplifiers, similar to my Able Signal Amplified Digital Outdoor HDTV Antenna .

Channel Master Antenna

Channel Master Antenna, August 1958 Radio News - RF CafeExciting News From Channel Master's Test Lab!

New 350A Series "T-W" Antenna - 7, 5, and 3-element models,

5 New Performance And Durability Features Are Built Into The New T-W Antenna

1. New Weatherproof Harness Delivers Peak Performance In All Climates

Give your customers the world's most powerful TV antenna performance ... and never worry about weather problems. The extra-thick 1/4" virgin polyethylene insulation protects impedance match and electrical efficiency against rain, salt, or sea air. 16 gauge copper conductors. Dealers in coastal areas will particularly go for this new T-W feature.

2. New Mast Bracket Installs Faster

A few seconds is all it takes with the new single "3/8" U-bolt. New design mast bracket is really rugged, too. 4 rivets through the bracket and mast secure the antenna permanently in place ... can't ever twist or slip out of position.

New Ruggedized Elements Provide Extra Durability

3. Seamless 1/2" diameter external sleeves supply "shock-proof" reinforcement of all elements at the brackets.

4. All dipoles are reinforced at the fold with a seamless 1/2" diameter U-bend.

5. 20% heavier wall thickness on all elements.

Plus Famous "Traveling Wave" Performance!

Highest Gains ... Highest Front-To-Back Ratios of Any VHF Antenna.

Ellenville, N. Y.

The World's Largest Manufacturer of Television Antennas

Channel Master Corp.

Copyright 1958 Channel Master Corp.

 

 

Posted November 11, 2019

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    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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