K6KV

Field Day Triplexer

A Field Day Triplexer that permits three stations to operate simultaneously on different bands sharing a single antenna.

Other:

Refreshments
Raffle prizes
Questions for Dr Know-it-All

We will be raffling off prizes at this meeting:

• 2009-2010 ARRL Repeater Directory

2009-2010 ARRL Repeater Directory

K9YC

Using High Power Coaxial Chokes to Kill Receive Noise and RFI
Jim Brown, K9YC

Jim Brown, K9YC, always talks about topics of great interest to Radio Amateurs. This time he will clear up myths and confusions about baluns versus chokes. Do you know the difference? Jim will cover:

• How ham antennas are inherently unbalanced
• Common-mode and differential-mode current on transmission lines
• How to wind chokes
• How to measure chokes
• And lots of other fun stuff

You may remember Jim's popular talk "RFI and Ham Radio" from FARS December 2007 meeting. Jim's presentation slides can be found at his web site http://www.audiosystemsgroup.com/publish.htm.

[Meeting scheduled in Room 32 this month]

Prof. Thomas Lee

FARS/PAARA Winter Banquet 2010

"From Arc Alley to Silicon Valley"
Thomas H. Lee, Professor
Stanford Microwave Integrated Circuits Laboratory

This special banquet meeting is held at a restaurant and reservations are required to attend.

6:00PM Meet and greet
7:00PM Dinner is served
8:00PM Introductions
8:30PM Program
9:30PM Raffle

Professor Lee of the Stanford Microwave Integrated Circuits Laboratory will speak on the early history of radio, and its relationship to the development of Silicon Valley. His talk, is based in part on his book chapter entitled "A Nonlinear History of Radio."

Professor Lee has pictures of a Palo Alto home (at Channing Ave. and Emerson St.) that was the birthplace, in 1909, of the first high-tech company in what would later become Silicon Valley.

Professor Lee will provide an overview of the contributions to radio technology by pioneers such as Maxwell, Hertz, Marconi, de Forest, Fessenden, Herrold, Litton, Terman, Alexanderson, Poulsen, Elwell, Pridham, Jensen, Farnsworth, Heintz, Kaufman, Eitel, McCullough, Shockley, Kilby, Noyce, and Hoerni, just to name a few.

K6OIK

HF Propagation and VOACAP

As Cycle 24 is starting to get underway, Steve, K6OIK describes the radio science behind HF propagation. How the ionosphere is formed by nature, what are the key variables. As a radio operator, the main things you will want to know is how the D, E, Es, and F layers respond to solar radiation.

After describing the physics, Steve will cover propagation prediction by statistics. This talk is an update to Steve?s talk at FARS July 2005 meeting.Whether you are a contester or a rag chewer, this talk will tell you what you need to know to be successful in Cycle 24.