Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Innovative Power Products Passive RF Products - RF Cafe

Innovative Power Products Passive RF Products - RF Cafe

Temwell Filters

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Werbel Microwave (power dividers, couplers)

Channel Master Corporation
November 1951 Radio & Television News

November 1951 Radio & TV News
November 1951 Radio & Television 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.

As evidenced by this advertisement in a circa 1951 issue of Radio & Television News magazine, Channel Master has been producing commercial broadcast television and radio antennas and antenna accessories for a really long time. They are one of the very few companies still making such items, with RCA being another. A few years ago I bought a high gain Channel Master VHF-UHF-FM antenna for use with my vintage Alliance Model U-100 Tenna-Rotor. Both companies still sell remote control (wired) antenna rotators. Being an ardent over-the-air broadcast adherent, having a good old-fashioned steerable, multielement antenna is quite nice. I can dial in any TV or FM radio station within 50 miles, and some from over 100 miles away. I would like to have a similar setup for AM radio, but the antenna length gets out of hand at 530 to 1,700 MHz (525 to 1,705 MHz including 10 kHz channel spacing), equating to quarter wavelengths from 455 to 145 feet, respectively.

Channel Master Corp. Ad

Channel Master Corporation, November 1951 Radio & Television News - RF CafeTests Reveal Serious Mismatch in Stacked Yagis!

New Z-Match Yagi Achieves 100% Perfect Match To 300 Ohm Line, Single or Stacked.

Higher Gain On All Yagi Installations Accomplished By Adjustable Impedance And Wider Spaced Elements.

Now! Stack Yagis without extra stacking bars!

Mismatch eliminated! Now Channel Master proudly introduces the Z−Match Yagi - a new antenna that guarantees 100% perfect match in both single and stacked Yagi installations.

Single bay Yagi perfectly matches 300 ohms because of wider spaced elements. When Yagis are stacked, the center bars of the folded dipoles are removed and used as half−wave connecting rods. This reduces the impedance of each antenna, and automatically creates a perfect 300 ohm match for the complete stacked Yagi array. The Z−Match system, plus wide spacing, provide higher gain for Channel Master Yagis, single or stacked. No extra stacking bars result in lower cost.

Channel Master Corp.

Napanoch Road, Ellenville, N. Y.

Write for complete technical literature.

 

 

Posted September 14, 2020

withwave microwave devices - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com

My Daughter's Website: EquineKingdom

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

RF Cascade Workbook 2018 by RF Cafe

;