RF Power Transistor Outputs 1.5 kW

Need to reach that far-away 440 repeater. Here’s just what you need. This is from the latest electronic design e-mail newsletter:

RF Power Transistor Packs 1.5 kW

Chiseled for UHF pulsed radar applications, the Model 0405SC-1500M RF power transistor exploits state-of-the-art SiC technology to provide 1,500W of peak power in a compact single-ended package that replaces push-pull balun circuitry found in conventional silicon BJT or LDMOS designs. The device is a common gate, class AB transistor designed for UHF frequencies from 406 MHz to 450 MHz. It is built with 100% gold metallization and gold wires in a hermetically sealed package suitable for use in weather radar and over the horizon radar applications. Other features include a medium pulse format of 300 µs at 6%, a typical power gain of 8 dB, and a drain efficiency of 45% at 450 MHz. MICROSEMI CORP., Irvine, CA. (800) 713-4113.

W1AW Offers Code Practice, Bulletins via EchoLink

Gary Utz

Island Sytems Technologies, Inc.
507 Starlight Drive
East Yaphank
New York 11967 
(631)834-8989

Posted via email from Ask The Internet Guru

Ham Radio. A Dying Hobby? Guess Again…

ST. LOUIS (ST. LOUIS PUBLIC RADIO)

– Only a few years ago, blogs listed ham radio alongside 35mm film and VHS tape as technologies slated to disappear.

They were wrong.

Nearly 700,000 Americans have ham radio licenses up 60 percent from 1981, a generation ago. And the number is growing.

Ham radio will never have the sex appeal of the iPhone, but it does have a certain nerd appeal, says Allen Weiner, an analyst at the technology research firm Gartner.

“If it creates its own experience, that’s really what’s key here,” he says. “If it just emulates an experience that you can get online, it’s not going to grow.”

Read the full article here over at St Louis Public Radio