The Airwaves
April 1998
An ARRL Special Services Club -- RACES -- ARES
P.O. Box 1442, Ridgecrest, California 93556-1442

The Airwaves Calendar

Monday SARC Emergency Net
	Every Monday 1930 hrs
	WA6YBN translator
	146.64 MHz (-600 kHz)
	Visitors welcome
Apr 1	Board of Officers Meeting
	First Wednesday Heritage Inn 1715 hrs
Apr 8	Membership Meeting
	Second Wednesday Heritage Inn
	Flight Deck Room 1930 hrs
	Program: Mars Pathfinder & NAWC
	by Mike Herr WA6ARA
May 6	Board of Officers Meeting
	First Wednesday Heritage Inn 1715 hrs
May 13	Membership Meeting
	Second Wednesday Heritage Inn
	Flight Deck Room 1930 hrs
	Program: Six Meter Over the Horizon 
	Propagation by Ron Ogren WA6PEV
Jun 3	Board of Officers Meeting
	First Wednesday Heritage Inn 1715 hrs
Jun 10	Membership Meeting
	Second Wednesday Heritage Inn
	Flight Deck Room 1930 hrs
	Program: TBA
Jun 27-28 Field Day  Mike Cash KN6IS 375-4441
May 8-9	Rim of the World Auto Rally
	Call Mike N6PYM or Paula N6OQQ 
	Gibeault at 375-8704 See article
May  9-10 Death Valley to Mt. Whitney 
	Bicycle Race Call Elvy Hopkins 
	NØLV at 384-3589 to volunteer for one 
	or both days
May 2,3	Northern California ACS
	Emergency Response Institute
	Sacramento Calif. Dave Larton 408-778-7265
	Lloyd Brubaker WA6KZV 375-7245

Apr 11	Volunteer License Exam Session
	Kern County Library, Ridgecrest 
Branch, Meeting Room, 131 East Las Flores Ave.
	Written exam 0900 hrs, Code test 1100 hrs 
	Call NØLV 384-3589
May 28	Volunteer License Exam Session
	Cerro Coso Community College 1800 hrs
	Novice, Tech & Tech Plus Elements 1A,
	2 & 3A only Pre-registration is required
	Call Bill Maraffio N6PR 446-4165
Jun 13	Volunteer License Exam Session
	Kern County Library, Ridgecrest 
Branch, Meeting Room, 131 East Las Flores Ave.
	Written exam 0900 hrs, Code test 1100 hrs 
	Call NØLV 384-3589

April Program: The Mars Pathfinder Spacecraft
Naval Air Warfare Center Involvement
by Mike Herr WA6ARA

by Charlie Hawthorne KE6WQR

Field Day is coming up again. The fourth weekend in June is not far away. The past two years, SARC members have participated in the one put on by the Lake Isabella Club. Now one of our members, Mike Cash KN6IS, is coordinating a Field Day right here in the Indian Wells Valley.

The mention of a Field Day held in Ridgecrest brings out all sorts of comments from the members, both yea and nay, but it appears that it is going to happen this year. So, it is time to put away the doubts and criticisms and pitch in and make it work.

Something like this does not happen because one man says that he will take on the responsibility. It happens because people support him and work to make it happen. Without people to carry out the various parts of an effort, it just dies on the vine. Good things do not just happen; they are planned for and worked toward.

If you can spare any time or resources, please contact Mike and let's work together to make the 1998 SARC Field Day a memorable one.

Mars Pathfinder & NAWC Wed. 8 April
NAWC, China Lake was very much involved with the development of the Mars Pathfinder spacecraft which landed on Mars 4 July, 1997. Mike Herr WA6ARA was deeply involved in testing, problem solution and hardware fabrication. Mike will also brief us on Pathfinder radio resources and future plans to explore Mars. A Ham transponder on Mars? Attend the April meeting for this interesting program.

Two local Hams scored high in the ARRL's 1997, national, 10 GHz and UP DX Cumulative Contest.

Bill Burns WA6QYR earned 14,816 points for second place overall. He had 86 QSOs with 23 other Hams at distances up to 473 km on 10 GHz and 134 km on 24 GHz. Bill's 473 km, 10 GHz contact was between Heap's Peak and the San Joaquin Valley.

Chuck Swedblom WA6EXV totaled 14,040 points for third place nationally with 102 QSOs to 23 Hams at distances up to 390 km on 10 GHz and 129 km on 24 GHz.

This contest was held on the third weekends of August and September with scores being cumulative. Bill and Chuck were "rovers" on the first weekend moving about the desert setting up at different locations and working some known locations and some targets of opportunity. The second weekend they went to Heap's Peak, above Lake Arrowhead north of San Bernardino, to work "rovers" and operators at other known high elevations.

Rim of the World Auto Rally 8-9 May
by Paula Gibeault N6OQQ

It is time for the 1998 Rim of the World Pro Rally. This event, organized by Mike N6PYM and Paula N6OQQ Gibeault, is in its fifteenth year and once again promises just about every type of adventure a special event can provide. Pro Rallies are definitely not your tame street rally. These are flat-out, time trial competitions on twisty, cliffy, rocky dirt fire roads.

The majority of amateurs working the rally or tracking the cars get a front row view of the rally racers blasting down dirt roads. Others work net control for their own stage and some get to ride along in the organizers' cars. And then there is the intrepid packet crew who do a beautiful job of sending all scores from the field to headquarters, thereby allowing the rally scores to be final before the cars even get back to the finish.

Rim of the World will take place Friday and Saturday May 8 and 9 starting in Palmdale and running in the Angeles National Forest south of that city. If any of the various positions sound interesting to you, please give Mike and Paula a call at 375-8704 or e-mail them at [email protected] All workers receive a very nice T-shirt and a $20 room rebate toward a motel room, each night, if needed. We hope to hear from you.

Death Valley to Mt. Whitney 9-10 May
Now is not too early to begin thinking about this two day, nationally known bicycle race from Stovepipe Wells in Death Valley to Whitney Portals above Lone Pine. It is an early and long Saturday and ninety miles from home on Sunday. There is a free picnic in Lone Pine on Saturday. Call Elvy Hopkins NØLV at 384-3589 for information.

by Mike Cash KN6IS

"Hi, can't make it to the phone right now, so leave a message". How may times have you heard that annoying message? Well that is not the only thing annoying about the good old answering machine.

For months I have been having RFI problems on the 147.00 MHz repeater output frequency. When I was home I had a constant S-9 noise level on that frequency. When I got over 100 feet from the house the noise was gone. I first thought that the interference was coming from my neighbors house. They have an electric fence. During the power outage in the valley last month I checked again and the noise was still there. What gives? What could be interfering with my radio if no one in the valley has electrical power and there are no generators running in the area?

Several more weeks went by and still no solution. I happen to be talking to Elvy Hopkins NØLV one day and told him about my dilemma. Elvy suggested that I start checking my kids toys that may have batteries or maybe a clock or any other electronic device that has battery backup. So I started checking with my hand held and as I walked around the house the signal is S-9 in the family room and living room. Some how I need to attenuate the signal so I can locate the source. I get a smaller whip antenna, no luck. I get an even smaller antenna, two inches, still no luck. The signal is still to strong to pin point the source. I remove the antenna and now I can't get any signal.

I finally put a three foot piece of RG-58 coax with a BNC on one end where the antenna goes and start a new search. Looks like the RFI source may be the phone or answering machine. I unplug the power source and no change. The RFI is still there. How can this be? I look at the phone, no batteries. I look at the digital answering machine and, low and behold, I find a nine volt backup battery. I remove the battery and the RFI disappears. After three months, I can now hear the 147.00 repeater from home.

Now if I can just figure out why I get a one second rep rate click on my HF rig on all frequencies when there is no power to the house, I will have it made.

Mike Hugo KA6OIJ was recently questioned about the progress on moving the 147.00 MHz machine off of El Paso Peak, linking it to the Randsburg repeater and getting the autopatch working. The following, his reply, might be called "A day in the life of a repeater guru."

With government travel and other hobbies getting in the way, I still have not gotten 147 to come to the top of my priority stack.

I was successful, last month, in getting Tom's (Skeer) repeater (KD6IQJ, 447.025 MHz) link to Trona and a six meter remote base installed. There is still some clean up work to do on the system and some additional programming of the controller to allow the six meter link some control from the Trona repeater (WB6LYB 146.97 MHz). There is also a possibility of doing some clean up work on the audio of the Trona repeater Once that project got off my priority stack, I have been working on the Condor (W5WH 224.98 MHz) repeater that has been off the air for year now. The repeater was knocked off the air by maintenance personnel from KRAJ/KLOA radio (they are both owned by the same persons) moving the equipment and breaking it in the process. There was also some feed line problems. At a swap meet a few months ago, I purchased three twelve inch high, self contained racks. One of them has been used to repackage the radio, link radio, controller, duplexers and pass cans. The new rack will fit much easier into the very small space available on El Paso Peak and should discourage tampering.

There was also a problem with the controller. It would occasionally lock up. Embarrassing as it is, the problem was a pack of field mice living next to warm heat sink and doing their business on the controller. The circuit board was carefully washed with soap and water and solder reflowed. I still need to reprogram the controller and spend an afternoon up on the hill fixing feed line problems.

The main reason why this has taken as long as has is Bill and I had a minor political problem with the rest of the Condor System owners. Though not major and certainly not worse than any other political problem that I face on a routine basis with Ham radio, it didn't serve to motivate me to get the repeater fixed. I expect to get the repeater completely done next weekend and possibly on the hill the following weekend or the weekend after.

I still have not gotten 147.00 MHz repeater to come to the top of my priority stack with travel and other hobbies getting in the way Once I get that done then I will start to work on 147 and the move.

The first order of business will be to assemble the 440 link system. I have the required crystals, duplexer, radio, controller and rack. The only things I still need to purchase are a power supply and a set of crystals for the Randsburg link tranceiver. I also need to figure out what the parts I have are worth and pass the cost on to SARC. The most expensive item is the duplexer which was acquired through a series of horse trades with a Ham friend of mine down in Riverside. He is the owner of a very large private link system and I traded him a few radios and various junk parts for the duplexer. Once I get the 440 link system complete we will have work party to install it. Once installed I will go to Randsburg and do a PM on it, install the link radio and upgrade the software in the controller. When this happens there will be an autopatch on the Randsburg repeater via the link.

I will then go to Laurel and remove the 147 and take it to my house for a few weeks to rework the repeater and change the wiring harness to accept a direct connection to the 440 link. Once done the 147 will get moved to where the link radio is sitting and the system will be complete.


Field Day	Field Day	Field Day

Field Day 1998 will be June 27 and 28. Mike Cash KN6IS has jumped at the invitation to head up the effort to hold SARC Field Day at the Leroy Jackson park in Ridgecrest.

The object of Field Day is to work as many stations as possible on any or all amateur bands (excluding the 30, 17 and 12 meter bands) and, in doing so, to learn to operate in abnormal situations under less-than-optimum conditions. A premium is placed on skills and equipment developed to meet the challenge of emergency preparedness and to acquaint the public with the capabilities of Amateur Radio.

The SARC tower trailer with it's three element, tri-band beam will dominate the park skyline. Wire antennas will burden the trees. Weird concoctions of wire, rope, coax and strange little boxes will be strung from poles of various materials. Computers, gas lanterns, tents, not to mention transceivers and the full gamut of Ham gear will live in the park for twenty-four hours of attack on the RF spectrum. A Saturday evening picnic and BBQ is in the planning stage. We wouldn't want to let McDonald's bring any civility to this all out assault on the ether.

Contact Mike Cash at 375-4441 if you would like to be an operator, be a logger, help set up, help tear down, kibitz, cook, take pictures, take videos or participate in any manner.

Experience is not required. Field Day is where experience is gained.

RF Exposure Document Package
RF exposure rules have been in effect for amateur radio since 1 January 1998. FCC Part 97 has been updated to include Section 97.13(c) which begins "Before causing or allowing an amateur station to transmit from any place where the operation of the station of the station could cause human exosure to levels of radiofrequency (RF) radiation in excess af that allowed under---."

The latest and only acceptable FCC form 610 (September 1997) contains the following. "I certify that: I have READ and WILL COMPLY WITH Section 97.13(c) of the Commission's Rules regarding RADIOFREQUENCY (RF) RADIATION SAFETY and the amateur service section of OST/OET Bulletin Number 65." (Yes, upper case is on the form.) Applicant's signature is the next line. Any use of a form 610 requires certification of RF safety compliance and all Hams will have to certify compliance no later than 1 September 2000.

The ARRL magazine, QST, has two excellent articles. "What's New About the FCC's New RF-Exposure Regulations?" in the October 1997 issue. The January 1998 issue has "FCC RF Exposure Regulations--the Station Evaluation" which guides the Ham through a sample station evaluation using generalized tables. The Feedback column in QST for February 1998 has corrections for three values in Table 6 of the January article.

The ARRL has recently published "RF Exposure and You" which can be reviewed and purchased from Part of the ARRL description is: "This book was written to communicate one simple message: For the vast majority of Amateur Radio operators, the RF exposure rules are not difficult to understand and follow. This book has what you need--the background information, suggestions and worksheets to help you to comply with the new RF exposure rules. With this information, you will be able to operate your station legally and safely--and you will be able to operate."

What FCC documents must be read? What must be complied with? How is it done? These questions can be answered by studying the following three FCC documents.

FCC Rules, Part 97, Amateur Radio Service is the U. S. Government document which governs amateur radio. A current version of this document should be in every Hams shack. Thirty-seven pages Internet source: Go to Under Consumer Information click on Rules and Regulations. In the Search Terms box enter 47CFR97 using upper case and no spaces. Click the SUBMIT box. Scroll to item 73 (This number might change.) at the bottom of the page to find [1997] 47CFR97--PART 97--AMATEUR RADIO SERVICE. Click on one of the three document format icons. Follow download instructions. FCC Office of Engineering and Technology (OET) Bulletin 65 "Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields" is the FCC's complete document on RF exposure hazard computation and compliance for all radio and television services. Eighty-five pages. FCC Supplement B to OET Bulletin 65 sub-titled "Additional Information for Amateur Radio Stations" is written expressly for Hams, at ARRL request, to assist in and simplify the computations and evaluation. It is not a stand-alone document and has references to Bulletin 65 which must also be used. Sixty-one pages plus four work sheets.

Internet source for both documents above: Go to Click on OET Bulletin 65. This takes you to Choose the document and format desired. Click on them. Follow download instructions. Not on the internet? Don't want to wear out your printer? Don't want to fight with the government printing office? You are wondering where do I get hard copies these documents? Be not alarmed. Bill Burns WA6QYR has a complete set of the above documents. He will have them copied for you with advance payment of approximately $9.00. Contact Bill at 375-8566 or e-mail [email protected].

Cerro Coso License Class
The spring semester CCCC Amateur Radio (Technician) License class has eight members. The instructor, Tim Lyons KF6LCH, is asking for IWV Hams with special interests or skills, applicable to the class, to volunteer to make a presentation in the class. You may contact Tim at 375-9886.

Show and Tell Program
Have you constructed a neat, one of a kind, magic black box? Are you exploring another of the myriad of RF toys available to Hams? Have you written a technical paper that is of interest to Hams? Do you have a special expertise that is RF applicable? The SARC second vice president and program chairman, Larry Merwin KE6YLG, is considering a Show and Tell meeting program consisting of several short subjects presented by members. Call him at 384-3180 if you want to contribute a short subject or do a demonstration.

Electronic Form 610
Well, not really a form 610, but it does some of the job a lot quicker if you are on the internet. The FCC's Electronic Renewal Form 900 can be used to: (a) renew your amateur radio license (b) change mailing address (c) change licensee's name. Go to and click on Electronic Renewal Form (Form 900) to begin. After submission how does one tell if the form was received and acted upon? Simple, go to Form 900 Electronic Renewal Query, just below the form 900, and click to initiate an action query.

from Mark Rosenthal N6BVP

As of 10 March
	Share account	$2,444.09
	Draft account	$1,978.51
	Total		$4,422.60
	Obligated funds	
	Relocate 147.00 repeater  $1,200.00
	Balance		$3,226.60

Tried 10 meters lately? Its opening up.

Board of Officers Meeting Minutes
by Secretary Tom Ingram WB6EPD

March 4, 1998, 1715 hrs. Those present: 1st VP David Stone KC6UUR, 2nd VP Larry Merwin KE6YLG, Secy. Tom Ingram WB6EPD, Treas. Mark Rosenthal N6BVP and AIRWAVES editor Elvy Hopkins NØLV.

Mike Cash has agreed to lead the Field Day effort this year. The Board voted to pay the $25.00 fee required to reserve Leroy Jackson Park. Kern County requires a proof of insurance letter that lists Kern County Parks & Recreation as an alternate. A Proof of Insurance letter (without KCP & R as alternate) will be provided to see if that is sufficient. Bill Burns WA6QYR has provided an RF exposure document package to the club. The club will reimburse Bill for $11.94 copying costs. The cost of reproducing this bulletin is $8.20 per copy. Information for those wishing to purchase a copy of the RF bulletin will be placed in the next newsletter. Upcoming programs that needed to be scheduled were provided by Larry. They are six meter Sporadic E & Meteor Scatter by Ron Ogren WA6PEV, Portable Repeater/setup demo by Greg Roush WA7IRW and SHARES/MARS Federal level HF emergency communications by Lloyd Brubaker WA6KZV. The order was decided by the board and will be published upcoming newsletters. Elvy announced that the April newsletter would be mailed during the first week of April as usual. Ed Tipler WA6KYZ declined any rent for the 147.00 MHz repeater site. The phone at that site is now classified as a business phone. Phone bills will monitored in the future to see if the club needs to pay for some service. Letters of appreciation need to be sent to the Heritage Inn (meeting room)and the Kern County Library (volunteer exam room) toward the end of this year. Chuck Pierce WA6QFD will bring a video and models for the six meter radio control program at the March general meeting. The Death Valley - Mt Whitney bike race was discussed.
The meeting was adjourned at 1740 hrs.


Transceiver, HF, solid state, Kenwood TS440S with matching PS30 power supply $650

Antenna tower, fifty-five feet, three section, crank up, free standing, Tristao TX455 (18 sqft at 50 mph), $600

Antenna Tuner, AEA Model QT-1 300 watt with internal dummy load $70

Desk microphone, Shure 444D $50

Power supply 14.4 VDC, 16 cont. 20 ICS AMP, Astron RS20A $85

Low Pass Filter 1000 watt $20

Tube tester, US Govt. surplus, nice one, $45

HF transceiver, collectors item, vacuum tube (Remember DeForest valves?), 100 Watts, Yaesu FTdx560, with matching speaker $125

Box of miscellaneous new and used vacuum tubes, $25. All items very clean and undamaged.

Proceeds from the sale of these items will go to the Fire Mountain Scholarship Fund for Communications and Engineering at Cerro Coso Community College in memory of "Maggie" Pladsen WA6RFJ, now a silent key.

Call Bob Huckins W6UPI 760-375-7655, e-mail [email protected].


Hewlett-Packard Scope, model 140 with plug-ins and manuals, needs power supply diode $25

Hewlett-Packard Test Oscillator model 650A with manual $25

Dentron Super Tuner antenna tuner $50

Texas Instruments 8086 computer with color monitor, no keyboard - great for packet $25

Tempo 2 meter HT (Henry Radio), 6 channel rock-bound, great for simplex $15

Cobra model 138 CB tranceiver, works but needs final transistor replaced $25

Heathkit oscilloscope model O-10 w/manual $10

Heathquit Audio VTVM - real nice $15

Griefkit VTVM Multimeter model V7 $10

Heathkit Visual-Aural Signal Gen. $10

Heathkit RF Generator model SG-8, manual $10

Heathkit Audio Oscillator model AO-1, manual, needs knob $5

Heathkit Electronic Switch for single trace scope $5

Okidata printer, wide carriage, dot matrix $10.

The following are FREE for pickup at my house.
Monochrome monitor for PC:
Texas Instruments dot matrix printer, has problems
Courier 2400 baud modem
Manual for Heathkit model TS- 4A TV Alignment Generator
Manual for Fluke 8030A Digital Multimeter.

Contact Claude Wood WA6YSQ 377-5558, e-mail [email protected].

See 	ya	in	the	funnys	 paperz.