DIRTY DISHES and clean signals the publication of  The 50 MHz and UP Group of Northern California, Inc.

Next Meeting: Sunday,  April 9, 1:00PM - at Lockheed Building 202, in Palo Alto, California.

Special note: This meeting also includes IEEE members.  We will be serving refreshments!

PROGRAM: Technical Lecture on Frequency Multipliers, including Step Recovery Diode Multipliers by Allen Podell

Varactor diodes and SRDs are commonly used to create harmonics for frequency multiplication.  They were the main active element in microwave "brick" sources like the ones from Frequency West.  When designed properly, a SRD multiplier can have surprisingly good phase noise and modest efficiency.  Diode multipliers are very cost effective solutions.  Allen will present both older design material that has not been available for several years and he will present some new information on using very low cost switching PIN diodes.

With extensive RF and Microwave experience, Allen Podell has designed monolithic and discrete circuits in Gallium Arsenide and Silicon.  He has a solid foundation in device-circuit interaction, and specializes in the practical realization of new techniques.  An IEEE Fellow, he has authored over 50 technical papers, founded three companies (Anzac Electronics, Podell Associates, and Pacific Monolithics) and he holds 43 US patents in areas ranging from IMPATT diodes, to 3 decade bandwidth microwave components, to food processors.  He currently teaches and creates courses for Besser Associates, Inc.

DIRECTIONS: The meeting place will be the Lockheed Auditorium in bldg. 202 on Hanover St. in Palo Alto, California. Access Hanover from Page Mill Road (between 280 and El Camino). Follow Hanover as it curves right and up the hill. Watch for the Lockheed sign indicating Bldg. 202 on the left side, just before the crest of the hill.

Officers for 2000 & 2001 

New members welcome

We are always looking for more people to join and share with our group. Dues are $15.00 per year, or the special rate of $25 for two years. Please encourage anyone who might have an interest to join our group.

Contests and Events

Livermore Swap Meet - First Sunday of each month at Las Positas College in Livermore, CA, 7:00 AM to noon, all year. Talk in 147.045 from west, 145.35 from the east. Contact Noel Anklam, KC6QZK, (510) 447- 3857 eves.

Foothill Swap Meet - Second Saturday of each month (March ñ September) at Foothill College in Los Altos Hills. Parking fee required.

VHF+ WeakSignal NETS
 
 

Sunday	8PM	144.240	Southern California WSWSS
Sunday	8PM	144.250	WSWSS in NCAL
Sunday	8:30PM	432.100	Central California WSWSS
Tuesday	8PM	144.250	Northern California SWOT, Oakland
Tuesday	9PM or so	1296.100	WSWSS, informal
Tuesday	8PM	144.200	Arizona WSWSS
Wednesday	8PM	144.240	Southern California WSWSS SWAP
Thursday	8PM	144.250	Northern California SWOT/WSWSS
Thursday	8PM	432.120	SCAL General, Oceanside, DM13

50 MHz & Up Group Minutes

On the InternetÖ

Do you have a Web Page relevant to our members? Let us know and we will put it here. (You must be a member.)

50 MHz and Up Group page: http://www.qsl.net/50up
OLD PAGE: http://www.nitehawk.com/rasmit/50UP.html  Hosted by Rein Smit, W6/PA0ZN as part of his Weaksignal News Kiosk. The 50Up page includes an archive of newsletters.

W6/PA0ZN's Weak signal pages: http://www.nitehawk.com/rasmit/

ARRL Pacific Division Web page:  http://www.pdarrl.org/
 

Rex's Place - KK6MK: http://www.dnai.com/~rexa/ Microwave stuff, 50 MHz Up Group pictures and information.

Laser Communications Home Page! http://www.qsl.net/wb9ajz/laser/laser.htm Lots of bright stuff.