I

COMPL T NOVICe COURS *49,9S 4 code tapes, 2 theory ttipes. 2 teit books code osoUotcir set eiorninef test pocket, and 70 discount toupons NOVICE TGCTSOOH *4-95 UUnctenbgGoidonUJes .tniS 1 tipoge'joc* corttojns oil Movice que orvs ood answers NOVICE COCK COURS 39.95 6 tope stereo code courte For learning the code from scratch Indudes certificates TCCHNtanN THiOflV < OURS li S19,9S 2 theorv tope< & 2 teitbooHs G N Rfll THtORV COURSE SI9.95 2 theory topes & 2 teitboofcs TCCHNtQRN GtN RRl...

Ace Communications

ACE Communications, lnc.T introduces the AR-501 Radio Telegraph Terminal, a triple-mode radio telegraph (CW) terminal for amateur radio operators and shortwave listeners. The AR-501 is a CW decoder trainer, and electronic keyer. Features include automatic speed fotlow-up and threshold control. LED tuning indicator, 32-character LCD display, random code generator, and electronic with both standard and iambic modes. Code can be routed 10 an internal speaker, and to a printer through the parallel...

Info

I learned ail of my code and theory while driving to and from work, it was easy ' if you tfon i nave time to read books 4 notes 1 tiome for the theory e*ams or spend ours copying cofle practice yuy can l& arn trefn by sim y iistenmg ai your teisure. Voo wiil learn not only tne e c questions ana iiw> sersor, your resi tnil ir. detailed theory Dehmo eacn one You wilf thoroughly anfle'staiid wn t ycu are being sked ano why the answer is correct New Wcvfce Teciiniciftr Gcr ral Advanced Nlra...

Atv Coordination Snare

This month's column deals with a very serious subjeci hat has been plaguing ATVers for many years GRM resulting from poor and irresponsible frequency coordination The time is ripe for someone from the ATV community 10 tell it like it is. It will certainly be the hot subject among Ham-TVers this year at Dayton The problems began a number of years ago when the FCC ceased the requirement of re-peatei registration by clubs, groups, or individuals. This decision alone opened the door to ihousands of...

Wakbl

Recently, the board met to review and update the by-laws so we are incompliance with present regulations. This also allowed us to bring everything in line with the operation of the corporation. Most important was the establishment of an Executive Committee to oversee the daily operations. Members of the Executive Committee are N6TX, WB6GFJ. WA6KBL, W6NBL and KH6JRB. With the launch of Phase 3C, Project OSCAR will be adding to the software library available for sale. All funds received go toward...

Kenwood Usa Corporation

Dominguez St Long Beach, CA 90810 RO. Box 22745. Long Beach. CA 90601-5745 Satellite * is a ,,Sp3ce-lor-HeaUh project instituted by Nobet Laureate Or. Bernard Lawn of the Harvard University School of Public Health. The project invited AMSAT to participate in a meeting near Geneva 19-21 March to discuss Ihe possible applications of the AMSAT-deveioped space systems and earth terminals to support communications between medicalpersonneii in remote areas AMSAT president Vern Hip1 Riportelia...

Dealers

V fui name anil me j e ean txmtaln up to words for as Httle as yearl> (prepaid), or 550 lot three months (prepaid) No mention or' mail order business permitted. Directory tew and pjyruent musi reach us b day in uilvanecol publication. Forevamptc, advertising lot the April issue must be in our hands tn Fcbruao 1st. Mail to 73Aatulcar aJio. urrier WGB Cefiler Pet rKhr. hl Ii NH'4 3458 Chad Hams VP2ML POBox 4881 Santa Rosa CA 95402 In September 1987 six Greek amateurs staged what many DXers...

Helical Resonator Preamps

Send 1 for 36 page catalog by return mail. (Send 2.00 or 4 IRC's for overseas mailing) Order by phone or mail Min 3 S & H per order Use Visa, Mastercard, Check, or UPS COD. 65-J MOUL ROAD*HIL TON NY 14468-9535 Phone 716-392-9430 Hamtrontct* Jt *r*gUt *< t tr*d*m*rk You've waited a long time for a simple, reliable, low-cost baud PACKET NETWORKING system. Now you've got iti Our new MO-96 MODEM and direct FSK Transmitters and Receivers for 220 or 440 MHz interface directly with most TNCs....

Poland

Jerzy Szymczak 78-200 Bialogard Buczka 2 3 Poland in January 1987 Jerzy Rutkow-ski SP5JR presided over a plenary session of PRRA. In addition to regular business, honors were awarded to many, including PAOLOU president, G3FKM. secretary, LA-1ND, treasurer and the chairmen of teams of the I Region of the ARUt DF1FL and PA0QC. As of April reporting, the leaders top three reported here, on-ly Ed of the SPDX Contest were, CW SP6RT, SP7NT, SP2AJO Phone SP9VU, SP5B7 SP5EAQ Mixed SP7HT, SP6RT,. and...

Oscars

Our space launching contacts said thai ihere were many Others standing by for a launch opportunity and even nuted that some had duplicated our technical know-how so their satellites should qualify. We couldn't complain, they had been most fair and helpful. I he OSCAR group was again approaching burn-out. hui again our Guiding I. ight led Perry Klein W3PK and Jan King W3GFY to us, They are two of the original members of AMSAT They sisited us for two or three day s, and we found a housing that...

NB

WANTED Apple II and mother board, complete, in good condition. G.C. Chandler. 104 Shallowford Way, Seneca SC 29678. BNB731 PROFESSIONAL QUALJTY DTMF DECODER AND SELECT CALL SYSTEM by Vince Yakamavich AA4MY, see Feb QST Magazine for details. Blank board * 152-PCB only 17 95 Kit of Paris including board. 152-KIT only 69 95. Assembled and lestsd board ff 152-ASY only 99 95, Add 2 50 per order S H. A& A Engineering. 521 W LaPalma, Unit K, Anaheim CA 92801. 7 4-952-2114, BNB732 MACKET pac-el...

Written Exams Supereasy

Memory pirts from psychologist engineer cut sti dyttme 50 . Novice, Tech, Gen S5 each Advanced. Extra 10 each Moneyback guarantee. Bahr. Dept 73-3* 2549 Temple Palmbay FL 32905 BNB531 SB-220 OWNERS Enhance performance add new features. 11 step-by-step mods which include tuned-input 6- and 160-meter operation, heavy-duty power supply mods fuH QSK operation. solid-state bias control, and many more. Source of parts included One time 50*o rebaie fof new mods submitted and two free updates, 10 pages...

Pakhatt

A new software enhancement makes the AEA PK-232 the only amateur data controller to offer six transmit receive modes in a single unit. 2006-196th St, SW Lynnwood, WA 98036 (206 775-7373 the world's largest distributor of radio scanners, introduces new models of CB, radar detectors and scanners. List price S499.95 CE price 279.95 SPEClAL f 2-Band, 100 Channel* Cryatallass AC DC Frequencyrangfr 29*54,118-174.406-5 J 2.806 956 MHz. Excludes 823,9675-849 0125 and 868 9875-894 Q125 MHz. The Bearcat...

American Reliance

American Reliance announces its advanced AR-80LM Logic Monitor. It is a state-of-the-art design and uses innovative custom-IC construction The AR-80LM brings high-end performance within reach of the average user. It is designed to provide automatic detection of both power and ground pins, making instrument usage an easy clip-on-and-view operation. Additionally, the unit automatically detects both TTL and CMOS logic levels. The AR-QOLM provides indications for logic high, low. and even pulsing...

Magnaphase

The ALT-4 Weather-Master is Digitals top-oMhe-line handheld Micro Weather Computer, designed with data acquisition, recording, and computing abilities that make it unique. The Weather-Master gives users the opportunity to create personalized weather stations. It is engineered with dozens of superior features, including computer calibration, backlighting for easy night-time viewing, and a four-way power capability that makes it completely portable and virtually invulnerable to memory loss...

Af Systems

AF Systems describes its SEEKER Computer-Aided Communications Monitoring system as a two-parl system for computer cont-o o' shortwave communications. SEEKER-LOG heJps manage large databases of frequencies, and the receiver will scan the LOG for information the user wishes to record. The SEEKER radio control program will operate the receiver automatically in the user's absence, and can be programmed to record 100 weekly transmissions SEEKER also fea tures a menu of 26 international and other...

Kasara Microsystems

Nounces a new heavy-duty C-64 Commodore reptacement power supply especially for the packet radio amateur. The amperage output now allows 24-hour contin* uous packet operation without voltage change or failure. This power supply also has a heavier heat sink and is an exact physical replacement for the original unit. Over 52 of Commodore 64 power failures can be directfy refated to the original power supply. Price is 27 95 plus 3 UPS shipping Order from Kasara Microsystems, inc., 33 Murray Hilf...

Book Shelv

Yes, places you ve never e en heard of Nearly 400 DX countries gleaned from the Awards Lists of dozens of IARU members more countries than any other map available anywhere ARRL's DXCC map doesn t even come close 73 Magazine offers readers our giant DX Map of the World for the absurdly low price of only 5 00f UVwe had so many phone calls from people wanting oitr famous 73 code tapes that we've decided to bring them hack 5 wpm-This is the beginning tape, taking you through the 26 letters, 10...

Low Power Inverter

This ts a tower power inverter built cheaply and simply ft uses only 3 parts and turns 10 to 16 volt DC into 60 Hz. 115 volt square wave power to operate AC equipment up to 25 watts. The LM556 or NE556 integrated circuit is the dual version of the ubiquitous 555 timer. The first section of the timer chip is wired as an astable oscilfator with R2 and C1 setting the frequency. The output is available at pm The second section is wired as a phase inverterr That output is avaitable at pin 9....

Opcom

This routine opens the communications pon first by clearing things out with a CONTROL C, and then setiing up the pon for input from the PK-232. It then puts the PK-232 into TRANSPARENT mode, as suggested by AEA. A file with the designated name is opened for output to the disk drive. The variable V is set to a value of 1 so that the main portion of the program knows whether or not to save the material to this file. The screen is then cleared and, if the PK-232 is synchronized to the incoming map...

Paragon Transceiver

For those of us that grew up in amateur radio, companies ike Johnson, Haili-crafters, and National seemed as American as McDonalds or Burger King today. When the imported wave of ham gear hit America's shores in the 70s, many of these famous names disappeared from the ham shack and vocabulary One American equipment manufacturer still around is Ten Tec from Se ierville. Tennesse. Tne Smokey Mountains are hardly Silicon Valley. When Al Kahn K4FW and Jack BurchfieJd K4JU founded the company in...

Alinco Electronics

20705 South Western Ave., Suite 104 Torrance. CA 90501- 213 618-8616 With ALINCCVs advanced engineering and technology, the ALD-24T2m 70cm Dual Band Mobile Transceiver is designed to be the ultimate incompact size with an impressive array of features, allowing maximum flexibility in installation and ease of operation, 25 Watt High - 5 Wart Lower Power both bands Memory Scan and Memory Lockout Ultra Compact amp Light Weight CTCSS Encoder Decoder Standard 16-Key Autopatch Microphone wilh Up Down...

Pb

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Puo

Aero vox 1000 plf500 V feedthr ough caps 1 95 Transformer 120VPfi 1050 V tA Sec 10 mt Q 00 iuc mfd 450V Axial Cap 2 00 S31SP PLP59 Silvtirplate I 62-81N Wale , 3.00 --I .12 6KD6 ---------------------- ------------ 12,96 AEA PK-232 new FAX 299 00 Kanirontcs KPCII i49 00 AF A Packet Teimmal Cal KantroricsKAM WX . . 299.00 All equipment used, clean, with 90 day warranty and 30 dayinal SihmcjnO ' kjilteadeao- fisinewequipfTient y.h u pnee refunded not sairsfied Call loi tate i gear 800 231 3067...

Abilene Tx

The Key City ARC is sponsoring its annuaf ham radio computer swapfest on Saturday. May 21, Armed Forces Day, at the Abilene Civic Center from 8 AM to 5 PM Doors are open from 6 PM to 11 PM on Friday, May 20 for dealer selup. Pre-registralion is 5 Admission at the door is 6. Tables are 2 each. A6 45 AM to 7 45 AM ham breakfast and 7 30 PM BBO dinner are planned at the Abilene inn. Plenty of parking. Also planned a tour ol Dyess AFB and the B-7 bomber, an air show, a tour of the mall of Abilene...

Birmingham Al

Pfans are well under way for the BirmingHamfest 88 ARRL State Convention, May 14 and 15 at the B.rmingham-Jefferson Civic Center. Exhibitor booths are 125 for both days, VIP tables are 20 per day. and flea market tables are S10 per day All BirmingHamfest 88 booths and tables will be on the main floor of the Exhibition Hall in air-conditioned comfort. Your Exhibitor Booth reservauon entities you and your employees to free admission Doors are open to the public on Saturday. May 14 from 9 AM to 5...

Xiv

Often diagnostic voltages 10 the panel meter Lers take a quick tour of the rest of the overall circuits At the left of the diagram are three possible charge-currcnt sources the two photovoltaic modules and a 15-volt switching power supply that can let me refuel from the AC line if necessary. The latter needs a current I miter to avoid overstressmg the batteries, Instead of adding a heavy resistor. 1 followed the old cyclist's maxim of making hardware do double duty the headlightmode ' can be...