The Bears Hunt the

Motivate, mobilize, and make it fun Looking for a great hands-on activity to motivate your students Try a foxhunt This multifaceted event encourages students to organize, research, experiment, construct equipment, and, most importantly, to have fun. The Bethel Educational Amateur Radio Society, the BEARS, sponsored by the Technology Education Department of the Bethel Middle School, is designed to provide co-cumcular amateur radio activities for our community's youth. It s an amateur radio...

Wdx

And fixing our own gear is supposed to he pan of this technical hobby. Many hams are intimidated by SMT, and with goixi tea-M n. Can you successful3v repair or modify a radio made from SMDs Yes, but J sav thai with some reservations. For many people, the size scale of modern radios is just too small. Let's take a look at working with surface-mount devices. f irsL ol all, you'll need some new tools. You just can i tackle a microminiature radio with a 100-watt soldering gun Even yourtrusty 30-w...

Oersted Faraday Tesla

Their discoveries created our worldwide system of electric power. John W. Wagner W8AHB 3890 Tubbs Road Ann Arbor Mi 48103 The discoveries made by these three Giants of Electricity, perhaps more than any other scientific breakthrough since 1888, arc responsible for advancing mankind as no other discovery has since Johannes Gutenberg invented the movable type printing press in 1453. Focusing on three is probably unfair to many others who also made significant contributions in electrical science....

Mfjc

New for 1996 - MFJ AirCore Roller Inductor Super Heavy Duty Components Made in U.S.A. Handles 3000W PEP SSB peak average Cross-Needle SWRfWattmeter Antenna Selector * Balun Built-in Dummy Load More hams use MFJ-989s than any other 3 KW tuner J MFJ uses super heavy duty roller inductor, variable capacitors, antenna switch and balun to build the world's most popular 3 KW antenna tuner The rugged MFJ-989C handles 3 KW PEP SSB and covers L8 to 30 MHz, including all MARS and WARC hands. MFJ's new...

Pkkt Bros Company

1308-6067 Dons Ave Ocean, J 07712 .Omr 20th Year e 19 Pen Br . Co Learn Coc e Faster & Easier Better than code tapes Take it anywhere to practice Light weight & compact The Deluxe Pocket Morse Code Trainer Selectable code rates from 3 wpm to 33 wpm * Runs 40 hn on one 9 v battery 1) Plays continuous fresh random code (Selectable leiter groups, e A-Zt -9, & more) 2) Preprogramed randum character playing 3) Interactive training i Excellent for beginners 4) Continuous newly generated QSO...

Info

Connect the Manual'' Auto Manual switch copper land to ground and the red LED should light up again. Remove the 5 VDC power before installing the LM339 in its socket, and check for proper orientation. Simulate the 4 Cell switch position by temporarily connecting pin 4 of the LM339 to the wiper of the 20k pot. Apply 5 VDC to the unit and the green light gt hould flash briefly before the red light comes on. Current consumption should be 10 to 12 mA uith the red LED on. Adjust the 20k pot for...

Make a M Cor Into a Repeater

A simple modification using a popular mobile radio. Adrian Brookes VE3RHK 220 Hunt Club Road Ottawa, Ontario Canada K1V 1C1 ambrookes -aol.com modifications required were I modifying the receiver RF connection 2j strapping the receiver and transmitter channel selection the control head would normally do this 3 adding a small perf board with a couple of pots to act as a substitute volume and squelch control again, the control head would normally do this 4 minor modifications Lu the radio's power...

Qrx

A lis of famous hams was posted on the Internet Do you know any famous hams not on ihis 7L2NJY Dr. Mamoru Mohri, Japanese astronaut 9N1 MM Father Marshall K'oran, missionary SK A4i AA Gaboos Bin Said At-SarA Sultan of Oman FQ5GJ Marlon Brando AKA Martin Brandeaux, acta G2DQU Lord Rlx iormerly Sir Brian , former actor and charity head G3TZH Tony Dolby, brother of Ihe Dolby G3YLA Jirn Bacon OSE, weatherman GB1MIR Helen Sharman. astronaut HSiA Bhumlphoi Adulayadej. King of Thailand IOFCG Francesco...

The Discharger

A NiCd nurse you really should build. Marion D, Kitchens K4GOK 2709 Colt Run Road Oakton VA 22124-1101 A bailer discharger Why would you want to discharge batteries There are two reasons for discharging our NiCiK One is to measure the capacity of the battery pack 10 determine if it has exceeded its useful life. We all know thai even NiCds have a finite fife span, but we Lend to assume the arc good forever in everyday practice. Many NiCds are. however, raled for about 1,000 discharge recharge...

Tzq

HamCall US amp International CD-ROM- Over 1.250.000 Lislings ICALL for DOS and Windows now allows EDtTlNG Oata dispiayisd far U S hams cafl s gt gih class nam , address tssue date expiration date, birth date, bcense class, county, lationg. area code, time zone, grid square, previous call and class, hours past GMT New editing feature a tows you to add new records, change addresses, add e-mail address, or add phone numbers. View pholos.rQ Ls of many hams Menu-dnver Prim Labels Latest pub domain...

Circle On Reader Service Card

Uncle Wayne, after being out of ham radio for a number of wars, I recently derided to gel hack into the action. I have to gi e a special thanks to Hob Chamberlain n KBC, of the Crystal Radio Club, for his encouragement. I u alked into the YE examinations at WECA's htimfest at Yonkers Raceway, intending to sit tor a Teeh Plus License, hut due to Bob's persistence, 1 walked out with a General 1 i guess I didn't know all that the knowledge was still up there. My first few hours of returning to...

Chas

Audio Recorder 1951

Joe Moell RE. KOOV PO Box 2508 Fullerton, CA 92633 The T is on the air Thar announcement is sure lo give an adrenaline surge to e eryone it the starring point of a mobile hidden transmitter hum. When you sun out on a T-hunt, as these radio direction finding i RDF eontests are called, you never know where vim' II end up and you don't know what you 11 lind there. No wonder most hams who try T-hunting get hooked on it. With high-gain quads, Doppler ets, and...

Rm S

Andy MacAltfster WA5ZIS 14714 Knights Way Drive Houston TX 77083 Field Day is once again jusi around the corner June 22nd and 23rd Every year the .American Radio Relay League sponsors lhe evenl as an exercise in emergency preparedness. Amateur radio groups in the United States and Canada take their ham gear, generators, batteries, and antennas outdoors for the competition. The object is to work as many stations as possible on the amateur bands from 1800 UTC Saturday for 24 or 27 hours depending...

JUN

DYER, IN The Lake County AR Club will hold their 24th annual Dad's Day Hamfest at the Lake County Fairgrounds in Crown Point N. Doors open at 6 AM for vendors and 8 AM tor the public. VE Exams at 9 AM Tafk n wiil be on 147.000 . Contact Dave Sneti N9WLP 833Schilling Dr., Dyer IN 46311 Tel. 219 865 131. MONROE, Ml The Monroe County Radio Comm. Assn will host the Monroe Hamfest at Monroe County Fairgrounds. M-50 at Raistnville Rd Please contact Fred VanDaeie 4 Can Dr Monroe Ml RICHMOND, IN A...

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Jps Communications Inc Nir

The gain and phase controls interact some, so it's a good idea to watch the radio's S-meter closely and set the radio AGC to fast It s not a hair trigger adjustment and the noise null increases smoothly as you approach the correct point Settings will normally noi need to be changed as you tune across ihe band, but they will need to be changed if the noise changes, How does it work Simple the noise signals from both antennas are combined. Your adjustments have caused these two signals to have...

Features

A NiCd nurse you really should bu id Dave Skinner KC5NLK operates from hts nheefchatr Make your buddies sick with envy by adding a Ten- Tec tuning bridge A compact antenna switching unit for Qopp er OF Oersteds Fa raday .Te I sa W8AHB Their discoveries created our worldwide system of electric power Make a MICQR Into a Repeater -VE3RHK A simple modification using a popular mobile radio Economical High Current Power Supply -WA8YCG A smarT battery charging system to buitd

Osha

WO Ship Worldwide Order Desk Opon 7 Day Weflk Marc I. Leavey, M.D., WA3AJR P. O, Box 473 Stevenson MD 21153 Allow mc a feu lines to mark the passing of nineteen years of RTTY Loop, We've covered a lot of territory in two decades from simple shift-pot FSK circuits, up through early ASCII, and now into a variety of computer modes and digital communication this facet of amateur radio called RTTY spans a wide spectrum. It has been, and continues to be. my pleasure to bring it to you through this...

Upgrading Your Transmatch

1980 Radio Amateur Handbook Arrl

Make your buddies sick with envy by adding a Ten-Tec tuning bridge. Dan Hall KJ7FX 7819 N.E, 128th Ave. Vancouver WA 98682 uch to Wayne's chagrin, any regular listener on the ham hands will fintl oui in short order that the hot topic of conversation most evenings is equipment, and of all the equipment that hams love to talk about, antennas are number one. If you listen long enough vou will also find oui that there are really only two basic types of hams those w ho buy the biggest, tallest, and...

Cwclc Oih Reader Service Card

RF Connectors announces the RFU-503, a UHF male solder clamp connector This PL-259 waterproof plug features silicone rubber front and rear gaskets. J he center contact is silver-plated for optimum solderability, the insulation is Tenon , and the body is nickel-plated. rhe RFU-503 is available from RF Connectors Distributors Ameco announces two new, high-performance broadband RF loads Model DL 1500 is an air-cooled unit that will handle an average of 1500 watts for up to 15 seconds and 150 watts...

The Carolina Bug Katcher Multiband HF Mobile Antenna

Antenna Radio Amateur

Jeff Gold AC4HF 1751 Dry Creek Road Cookeville TN 38501 Any mobile antenna is a eompro misc. I wanted one that would allow me to operate on several bands, but without my having to carry around resonators for caeh band. One that f it the bill was the Carolina Bug Katcher by Lakeview. the makers of the Ham Stick single-band antennas. The Bug Katcher sells for 89,50, which makes it one of the least expensive multiband mobile antennas. It provides continuous cov erage of ail amateur. Mars, and...

Bnbiq

CANADIAN HAMS Get on the air or upgrade in just 4 weeks with our exciting new courses, SASH brings free info, or check www,bushdog.com. BD . Dept, A, 17 Equestrian, Kanata OX K2M IBS. BMB2040 1-10M 64 al S63 ppd insured USzip, 1 iandy indexed Box, Save Time Money Hassles, IBMPC Hardware I O, Control, Book 1.44MB disk, discounted 34.75 pjid priority I S ip. Info Literature, lt 307 864-2725 5-9PM MST D.L. Bare, P.O. Box 67, Kirby WY 82430. BNB4001 BREAK THE CODE BARRIER Psychologist amp Extra...