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The FARS Relay

Volume 30, Number 10 OCTOBER 2000

October Meeting Wednesday October 25

Bill Rausch, AA6PA has agreed to speak at the next FARS Meeting. He will be talking about CANSATS and CUBESATS, an educational outreach program led by Prof. Bob Twiggs of Stanford, and (It is hoped) will include some exciting DVD footage of the CANSAT rocket launches in the Black Rock Desert, Nevada.

Presidents Corner

At the next meeting we will be presenting the slate of officers for the 2001 year. You will be given the chance to nominate from the floor if you do so we ask that you have the persons permission to submit their name.

We are moving our meetings to the fourth Wednesday in the hope of attracting more young people so mark your calendars accordingly.

It is time to renew your membership for next year and to get your money in for the banquet in January.

Between now and Dec. 31 we must take down our station and we will need a lot of help from you the membership. We are in the process of trying to find a new home for the station but do not have a location at this time. We will need help in storing equipment and if you can help please sign up at the meeting or let me or Omri know by e-mail.

We really need everyone's participation at our meetings. Another reminder: We are now having the speaker first on the agenda and the business will be last.

de Jack WA6YJR


October Board Meeting Minutes

The FARS board held its monthly meeting on the evening of October 3, 2000. Present were Jack, WA6YJR, David, KD6WRG, Omri, AA6TA, Dirk, KE6ZUY, Dick, N6ATD, Herb, KF6BKL, Steve, K6OIK, Shel, N6RD, and Martin, KD6WJW. A nominee for training officer still needs to be added to the slate of candidates for club offices next year. There was considerable discussion concerning dismantling and storing the club station as well as potential new locations for it.
- Martin, KD6WJW



FARS Winter banquet January 19, 2001 at Michael's

Livermore Swap Meet - 1st Sunday of each month at Las Positas College in Livermore, 7:00 AM to noon, all year. Talk in 147.045 from the west, 145.35 from the east. Contact Noel Anklam, KC6QZK, (510) 447-3857 eves.

Foothill Flea Market - 2nd Saturday of each month from March to October at Foothill College, Los Altos Hills.

FARS NET on 145.23 repeater Thursday nights at 8 PM.

September Meeting

This was our Home Brew Night. Floyd K6BSU took first prize with a crystal set and a capacitive touch keyer. Norm W6IQX, with a lamp made from computer boards and lettering made from CDs tied for second prize with Charlie KF6CUU who had a microwave termite killer. Bill KQ6FY took fourth prize with a windmill battery charger. We had a very good turnout for the meeting, Perhaps indicating seeing is believing.
FARS Board Candidates
President: Jack, WA6YJR
Vice Pres. Steve, KF6OIK
Secretary: Martin, KD6WJW
Treasurer: Shel, N6RD
Radio Officer: Omri, AA6TA
Training Officer: Open
Newsletter: David, KD6WRG
Board Members:
Herb KF6BKL,
Michael KN6QI.
Other candidates are most welcome, especially since some of the club officers have been doing this for a long time. Nobody's feelings will be hurt.



FARS Winter banquet January 19, 2001 at Michael's

Livermore Swap Meet - 1st Sunday of each month at Las Positas College in Livermore, 7:00 AM to noon, all year. Talk in 147.045 from the west, 145.35 from the east. Contact Noel Anklam, KC6QZK, (510) 447-3857 eves.

Foothill Flea Market - 2nd Saturday of each month from March to October at Foothill College, Los Altos Hills.

FARS NET on 145.23 repeater Thursday nights at 8 PM.


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President: Jack Eddy, WA6YJR
Vice President: Howard Califf, KE6PWH
Treasurer: Shel Edelman, N6RD
Secretary: Martin Liberman, KD6WJW
Training Officer: Steve Stearns, K6OIK
Radio Officer: Omri Serlin, AA6TA
Newsletter: David Wilkes, KD6WRG (See address below)

Board members: Dirk Thiele KE6ZUY, Dick Baldwinson N6ATD, Herb Davidson KF6BKL, Larry Moore KM6IU, Charles Arney KF6CUU.

K6YA Station Trustee: Stan Kuhl, K6MA

FARS Web Page:

FARS announcement mailing list is moderated, so you cannot reply directly to the list.
Also, note you can contact the FARS board of directors at
To subscribe/unsubscribe, send a message to:
In the e-mail message (in plain text) put one of:
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(eg. Subscribe fars-announce

The FARS Relay is the official monthly newsletter of the Foothills Amateur Radio Society Meetings are held at 7 PM on the fourth Friday of each month except January (Winter Banquet); and 3rd Friday in June, Nov. & Dec. Annual membership $20; family $25. Visitors are always welcome! Directions on the back page. Talk-in: N6NFI (145.23-, 100Hz) or W6ASH repeater (145.27 or 224.36). Contributions to the newsletter from members, family, and guests are earnestly solicited! Contributions subject to editing and/or compression. ASCII files via packet, Internet or diskettes preferred; but all readable forms welcome. Here is how to reach the editor:

VHF voice: KD6WRG on N6NFI, 145.23- (100Hz PL) FARS net Thursdays 8 PM; Various other times. Mail: 1093 Kelly Drive San Jose CA 95129-3222 Voice: 408-996-1613 (Until 9 PM); Fax: 408-725-1036, and at FARS meetings.

Station Take-down

To: All FARS members:

As you may know, we have to evacuate the club station by the end of December. So, we will need to store away the station's equipment until a new site is found. We are looking for volunteers to provide storage for the following bulkiest items:

1. Force 12 7-element yagi; can be disassembled to 6 ft.
2. Two 10 ft. tower sections.
(Items 1 & 2 can be stored outdoors)
3. Operating table, 60"Wx30"Dx26.5"H
4. Operating shelf, 52"Wx12"Dx10"H
5. Operating shelf, 41"Wx12"Dx10"H
6. Metal cabinet, 23.5"Wx26"Dx67.5"H
7. Lab bench, 48"Wx30"Dx34"H
8. 6m antenna, boxed, 73"x5.5"x5.5"
9. 6 chairs, stackable 10. Vacuum cleaner
11. Heater 12. Four HF rigs
13. Two 2m rigs 14. Misc. cartons, binders, books
(items 3-14 need indoor storage)


- you can store one or more of these items; especially items 1-9.
- you have a truck suitable for transporting these items, especially for items 1-9.
- you can volunteer to help with the take-down.

73 de Omri AA6TA
Radio Officer


Amateur Radio Newsline

Promotion of Ham Radio: New TV ad for youth in Ham Radio The San Francisco Chapter of the International Television Association has produced a 30 second TV public service announcement. The ad focuses on high technology being hip and in with today's teen culture. It also shows that hams are ready for any emergency. This, by showing a simulated earthquake and a rather pretty young female ham grabbing her HT to offer assistance. To produce the spot the ITVA recruited several San Francisco Bay area hams to consult on the development of the story line. If you have a Quicktime viewer in your computer you can see it on-line at: If you can get it on the air in your part of the country, you can order a broadcast quality copy in the popular Betacam SP format for only $20. Betacam SP is the most popular tape format used by TV stations and most cable systems worldwide. Go to the ITVA San Francisco website listed above for ordering information.
(San Francisco ITVA) *
Promotion of Ham Radio: Amateur Radio Awareness Day September 16 Amateur Radio Awareness Day is September 16th and ARRL Media Relations Manager Jennifer Hagy, N1DTY says that this is an excellent opportunity to promote Amateur Radio in your community. A sample letter to the editor and a fill-in-the-blanks press release are now available on the Leagues Public Relations Department Web site at: Jennifer says that it's a great place to get data on how to promote the hobby.

If you are not on the web you can call Jennifer at League headquarters and she will be happy to fax you a copy of the Awareness Day press materials.

You can reach N1DTY weekdays normal business hours Eastern Time at (860) 594-0328. Her e-mail address is:

(ARRL) *


THE BAN WILL CONTINUE: NO RADIOS ON PASSENGER JETS IN THE USA If you have any thoughts of using your two meter hand held or a cellular phone the next time you fly on a commercial airliner in the United States -- forget it. This as the decade old ban on the use of these devices and others will continue. Newsline's David Black, KB4KCH, has more: "The decision lets airlines continue restricting in-flight use of electronic devices. It comes after telecommunications experts told Congress that--while there is no definitive proof that cellular phones pose safety risks on airplanes--the devices should stay banned as a precautionary measure. The Federal Aviation Administration's Thomas McSweeny, testified that restricting the use of these devices prevents an extremely remote chance of a disaster from taking place. McSweeny's testimony took place before the House of Representatives Transportation Subcommittee. The hearing was held because lawmakers say the public is confused about airline rules governing use of devices including laptop computers, hand-held games, pagers, 2-way radios and cellular phones. Tennessee Representative John Duncan says the ban against cellular phones in the air is one of the biggest causes of altercations between passengers and crew on board airplanes. McSweeny says the FAA remains concerned that radiation from electronic devices could cause errors in the aircraft instrument landing systems or global positioning readings. McSweeney notes that many hospitals prohibit using cellular phones and other transmitters because they can interfere with health monitoring devices. But other witnesses testified that while there have been incidents in which portable electronic devices may have interfered with aircraft operations, they have never been able to repeat such episodes under controlled conditions.

The FCC's Engineering and Technology Chief, Dale Hatfield, W0IFO, also testified. Hatfield says Commission rules also prohibit cellular transmissions aboard in-flight aircraft. That, he says, is because calls made from high altitudes keep phones on the ground from being able to use the same cellular telephone base station frequencies. Representative James McGovern urged the FAA to promote technology which detects emissions from inside an aircraft cabin that could produce electromagnetic interference. That kind of technology, McGovern says, could lead to greater in-flight safety. Meanwhile, the in-flight ban on the use of electronic devices -- including your 2 meter H-T and all other ham radio gear -- remains in place. From Birmingham Alabama, I'm David Black, KB4KCH, reporting for Newsline."The aviation industry now differentiates between intentional and unintentional transmitting devices. Devices such as cellular telephones, hand held two-way radios, two or more inter-connected electronic games or hand-held computers that receive e-mail are considered to be intentional R-F emitters and are totally banned in-flight at all times. Scanner radios and ham radio transceivers fall into this category. On the other hand, most airlines permit unintentional R-F emitters such as laptop computers or CD players to be used after a plane crosses through 10,000 feet. Most other electronics, though, including all ham gear, remains banned

(Newsline from published news reports)
SCIENCE AND TECHNOLOGY: UNDERSTANDING RF The FCC has released a new and easy to understand guidebook on radio frequency emissions. The objective of this publication is to assist local governments, businesses, homeowner groups and individual citizens in better understanding the origin and application of the agency's safety rules. The guide is titled `A Local Government's Official Guide to R-F Emission Antenna Safety.' It's well written and contains rules, procedures and other information. More information is on the web at
Our web page is at:

Spell Chequer

Eye halve a spelling chequer
It came with my pea sea
It plainly marques four my revue
Miss steaks eye kin knot sea.

Eye strike a key and type a work
And weight for it two say
Weather eye am wrong oar write
It shows me strait a weigh.

As soon as a mist ache is maid
It nose bee fore two long
And eye can put the error rite
It's rare lea ever wrong.
Eye have run this poem threw it

I am shore your please two no
Its letter perfect awl the weigh
My chequer tolled me sew.

--Sauce unknown--

Multiband Matching Network Design using ARD

The GM3HAT dipole of delight is a multiband dipole antenna that is resonant on 40, 20, 15, and 10 meters but not 80 meters. The VSWR is below 1.62 on these bands; while on 80 meters, it exceeds 11:1.
[Cf. Ham Radio magazine, pp. 69-78, May 1987 and U.S. Patent No. 4,518,968.]

I decided to see if I could design a matching network that would match 80 meters while not destroying the matches on the other four bands. The solution turned out to be remarkably easy. First, determine an L network that gives the desired match on 80 meters. Second, add bypass stubs: Put a quarter wave open-circuit stub in series with the shunt arm of the L, and put a quarter wave short-circuit stub in parallel with the series arm of the L. The L operates normally on 80 meters, but the stubs bypass the L on the harmonic bands.

I programmed the circuit in ARRL Radio Designer, and, as predicted, it worked great. As a final step, I ran the optimizer on all of the network parameters. I was particularly interested in whether the optimizer could reduce the 1.62 VSWR. The optimizer ran at blazing speed on my 500 MHz PC - over 64,000 iterations in minutes. The peak VSWR was reduced to 1.46:1 on 40 meters. The final network is beautifully simple - just four components.

If any one needs a multiband antenna, they might look seriously at the four-band GM3HA dipole of delight and give it a fifth band with an inexpensive fixed network - no expensive antenna tuner required!

- Steve, K6OIK


Maxwell's equations?

Nowadays, the four vector equations of electromagnetic theory are almost universally called "Maxwell's" equations. This name for the equations, although popular, is a regrettable error of history. The four vector equations (curl E= -dB/dt, curl H = J + dD/dt, div D = q, div B = 0) were formulated by Oliver Heaviside in the 1880's and published around 1883-84. Maxwell died in 1879 before these equations had been worked out. At the time of his death, Maxwellian theory consisted of some twenty equations in twenty unknowns in both scalar and quaternionic variables. Although Maxwell's theory was a field theory, the electric and magnetic fields lacked central importance in his mathematical expression. Vectors and vector analysis did not yet exist. Therefore, the four vector equations of modern electromagnetics properly ought to be called "Heaviside's equations for Maxwell's theory." A good account of this historical matter is found in Prof. Paul J. Nahin's book: "Oliver Heaviside: Sage in Solitude," IEEE Press, 1988.
- Steve, K6OIK

Wireless Business News

Venues for tracking wireless business news and advertising wireless products include the following:

Wireless business news sites (with vendor lists):

RF Globalnet,
RCR Wireless News,

Trade magazines (most have vendor lists on their web sites too):
Antenna Systems & Technology,, Webcom
Applied Microwave & Wireless,, Noble Publishing
Basestation Earth
Electronic Design,, Penton
Microwave Journal,, Horizon House
Microwaves and RF,, Penton
Radio Resource Magazine,, Pandata
RF Design,, Intertec/Primedia
Wireless Design & Development,, Cahners
Wireless System Design,, Penton

Professional society publications:
IEEE Communications Magazine Trade shows (US):
CES,, March 28-31, 2001, Las Vegas
PCIA GlobalXChange,, Sept. 11-14, 2001, Los Angeles

If I missed your favorites, let me know and I'll add them to the list.

- Steve 

Jamboree on the Air

Time will be from 10 AM to 3PM Sunday, October 22, at the club station. Earlier might be better since there is a possibility of contacting Europe before it is too late in the evening for Scouts there. 

Unfortunately, this is the same weekend as Pacificon. However, Omri, Dick, Paul, and Steve will be there if I am reading the mail properly.


As you know, I have been a big supporter of the scout Jamboree On The Air for a long time. This year, I will again be at the FARS club station.

I hope Steve gets a good response from his PR efforts. It is an uphill battle because most scouts either are at the camporee the same weekend or busy with soccer. 

Paul AA6PZ


How to get to meetings:

(Visitors always welcome)

FARS meets at the Covington School District building, 201 Covington Road, Los Altos. Take the El Monte exit (The same exit as for the Foothill Fleamarket) off of I-280 and go East on El Monte. Cross Foothill Expressway and turn right at the next light on to Covington (Note Saint William church on corner). Stay to your left as the road forks. Just past the fork, turn left into the school parking lot. Walk through the center hallway and turn right. The meeting room is the first door on the left. Talk in on 145.23 or 145.27, negative offset, 100 PL.