Awards From Certificate World

I was very p-easeo to recei e a Metier from a new subscriber and O learn of his new adventure o' collecting various arna- eu- operat'ng awards Meet Stu Bernng W& 5ULD from Fulttin Mississippi Stu features some ary attractive awards tor the parchmenl pursuer Represenling Certificate WoridT we find his awards ar made available to all US and rorelgn amateurs for Iwo-way oommu nicafion in the separate award areas. AH modes of communications are accepted wpth the exception of those contacts via...

For Toll Free Ordering Call

VHF ANTENNA HANDBOOK The new VHF Antenna Handbook details (he theory, design, and construction oi hundreds of differed VHF and (JHF antennas. , .a practical book written ior the average amaieur wf-o lakes joy m building, not fufl ot complex formulas ior the desiqn engineer. Packed with fabulous antenna projects you can build. BK736S 55.95 ALL ABOUT CUBiCAL QUAD ANTENNAS (2flEl edi tion The Classic1' on Quad design, theory, construction. and operation. New 2nd edition contains new feed and...

Info

Use with above. Power Eevets from 10 to 45 Watts. Kits from 69.95. Model Freg Range Noise Figure Gain Price LNA144 120-160 1,0 dB IS dB LNA 220 180-250 TO dB 17 dB LNA 432 380-470 1.0 dB 16 dB Our Traditional preamps, proven in years of service. Over 20,000 in use throughout the world. Tuneable over narrow range. Specify exact freq, band needed. Gain 16-20dB, NF 2 dB or less. VHF unavailable 27 to 300 MHz, UHF units available 300 to 650 MHz. P30K, VHF Kit less...

Ham Help

am looking for literature on Peltier electrodes. I am particularly interested in information on how to make them or use them to make a microsample osmometer. Carlos P. da Costa MR, PhD Rua dos Navegantes 541, Apt, 602 Boa Viagem, Recife PE 50000 Brail i need a copy of the schematic and crystal .Information for an AN PRT 4A transmitter. Cletus G. Reinsel W3HWM RD 1 Box 405A Oil City PA 16301 I'm looking for schematics for the Wilson 14Q2-SM HT. I will pay for copying and mailing costs.

J

R'S' e - if of Advertiser S er o,tge T14 A beginner's co ect on of QSL cards can grow surprisingly fast 4_s cards come fa (he XV . often gefs interested in fhem. The other source for these tips was the -member U.S Naval Postgraduate School Amateur Radio Club in Monterey, California. At one of its monthly meetings, asked members to tell me specifics they thought would help improve operating skills. 1) Headphones This tip stands out idr above all others for two reasons. First it is absolutely...

Heathkit Ultrapro Cw Keyboard

Have you - - er Felt mat * our CV ser> dmg could sound better Have you tell per haps too, that o improve from where you are would take more (lime nd effort than you would like to invest You need to consider ihe new Heathkit Utirapro CW Key* board (HD 6999) wrench man a rxiard soon become o o ficient at .board send'rg. with the promise o* perfeciior whic1 a keyboard offers if you re anead of he Stiiison wrench group and know where me keys are on a typewriter or compuier with the Ultra pro. you...

Rtty Radioteletype Communications Processor From Commsoft

As digital communication* slowly but surely revolutionizes amateur radio, many firms have taken a Stab at producing com-put en zed RTTy programs Few companies ha accomp'.shed this task mere skillfully than Commsott. makers of RTTY89 a radio teletype program for the Heath H89 All livQne microcomputer RTTY69 was wrilte by Howard L Nurse W6LL0 and is designed to ma*e maximum LSe of the specia Junction keys and eo-cciumn Mideo display capabilities of the H89, This combination of computer and...

Italy

Mar to A moros i I2MQP Vta Stratfefi*. 13 2 J 029 Mt ta no. i ta,y Havmg recently been named tne Award and Contest Manager for the Italian Amateur Association lAflij, I will take th'S opportunity to g've some rules of the Italian awards COM Certificate del Mediterr neo (Mediterranean Certificare . It is < S3ued to any amateur who can show confirmation of a two-way contact srnce June 1 1952 jvith a fined amateur station in at least 22 countries cn the list (below and at least 30 amateur...

The Netherlands

Sponsored by many local hams a brand new repealer for two meters is now on the ait in the Nf tf erlands. in a small country Ifkeours, a new repeater is quite an event. The repeater homemade by An EJol PAOGHN. operates on 145.775 Th machine is now located or top of an old water lower near Heemstede, and il coders the midwest area of Holland its cailsign is PiJHLM Now almost the whole coirniry is coveted n> VHF repeal era, v.tn a tola ot 19' Tht Club stairon PI4HLM of th- ncv ia Dutch radio...

The Interface

Software Available for Six Computers The versatility of the personal computer gives you a whole new world with the Kantronics Interface and Hamsoft or Hamtext, The Interface' connects to any of six popular computers with Hamsoft or Hamtext giving you the ability to send and receive CW RTTY ASCII. An active filter and ten segment LED bargraph make tuning fast and easy. All programs, except Apple, are on program boards that plug directly into the computer. Hamtext our new program, is available...

Japan

Roy Waite W9PON Tomigaya Grand 307 2-19-5 Tomigaya Shibuya-Ku Tokyo '5f, Japan There are no reciprocal agreement with Japan, but Americans and otheis operate anyway As you knew from last month's issue, Japan does not havf reciprocal a ree merits wiih any country yei although a law has been passed to set things in motion tn sprte ol this, we have had through the years since 1970. in fact many non Japanese operating nam radios in Japan How did this come about, and why do we need a reciprocal...

British Commonwealth Awards

Through the cooperation ot the Radio Society of Great Britain. I was able to obtain complete details of this great organization's awards program. The following njles and conditions apply to ail HF certifications and awards issued by the RSGB and should be read in conjunction with those governing awards and certificates individually. AN members of the RSGB will be afforded awards at no charge. Others musi enclose at ieasl 6 IRCs for each award. Applicants within the United Kingdom must submit...

Cyprus

Arr,i Kapontdes 5fWE PO Bqm J 723 Lffftassol. Cyprus AN OVERViEW AMATEUR RADIO IN CYPRUS At the preseni there are aboul 200 amateur radio licenses with the 5B4 prefi and a dozen or so with ihe ZC4 one The 5B4 I icenses are issued by the Republic of Cyprus and the ZC4 bv Ihe British bases' authorities in Cyprus Although someon-j rtOuid ejcceci ItiM (r-tis number of amateurs s high com par Hi with the 630,000 popuration of the sJand, not many an teurs are act e on he HF bards Atl r aliur radio a...

Ham Wanted

73 is looking for a technically-oriented radio amateur with hands-on electronics experience, Applicant should have a higher class ham ticket as well as considerable experience with RTTY and computers. Or* ganizing ability and self-discipline essential. The right per* son will relocate to Peterborough and undertake special projects reporting to the Chief Executive Officer. . Jn a non-smoking environment. High Tech W P.O. Box 654 Peterborough, N.H. 03458 Only TET Gives You V5WR Of 1 5 1 Or Less...

Rtty For The

Microfish Software Products has released two programs which use the Commodore ViC-20 as an inexpensive Baudot and ASCII RTTY terminal Tnese programs. RTTY3K and RTTY8K feature 60-, 66-, 75-r and 100-wpm Baudot, 110-. 300-. 600-h and 1200-baud ASCII, CW ID with the operator's callsign builMn. keyboard-operated transmFt receive control, and apeciai-display-screen formatting for i more readable display These programs allow Ihe VIC-20 to be connected to any terminal unit, commercial or home-brew,...

Power Amplifiers

AJl mixlels include RF VOX c Low Noise RX PreAmpL (no pre-amp in MML432-100) Urfrrv 10 W fHitpit MML144-100-L5 OOW output MULRMW 50W 1 AJl pat M M L L44-50-5 30Vp output MMLH- X) LS 25W output MMLI44 25 l flW output 5 W output 3 W output MMi.402-100 10W Inpni MML432-50 0W Input MML432-30-L IW or 3 V jn I2IM- J 29 Ml 7. CnAing soon. Watch for detlfc* 2 Meter J-Beams 12,3 dBd airi 8 over 8 Horizon pol D8-2M Sby 8 Vertical pol D8-2M-vert 1250-1300 MHz LooivYagi 1296XV

Nf F

EUCTRDnETHlCS m -IG H - n w Frequency onaiy er cover range,Extendable to & 0 W jnpire Devices -jel I mens l tv Pleter. Has NF-lO5 T& ,Kf-105 TX,NF I tft TI, F-105 12 105 13 l**< itz to i WHz ALL tOUJPHENT CAFh 0 GUA AMTE t EOU PFtHT IS HCH UL B -iTE r Lfl L ' -Ii, HS-2 RfXICOK fiDSH trtse neooseia core *ttn aire to nook lu to a IGQh racjos tra try o ner eauioxnt. Wea - -t if m , nauters . pte-te . or jjs me lerri-r , TTese Are Fb tt ry in Seciac Bote, Jm ted ixr , inh 9.96 FCCTtV...

Scoring

Each station can contacted only once Each oompJeisd 2 x mTY OSO is worth 1 point. Multiples include ih* WAE and D* CC lists, each districi tn VE VO and VKr plus each different US slate The final score is the total number o OSOs times the total multiplier. Awards to the leading stations in each class with a reasonable score present Operating classes Include Class-A for Single Of mutti-op, and Class B for SWU OMicial lofls are recommended and are available from the contest manager (SASE or IRCs...

Rf Transistors

IU MRF455 MRFJ55A MRF458 MRF492 SRF2072 SRF2769 CD2545 CD3424 NEW FEATURES Individually hand calibrated resistance scale, expanded capacitance range ( 150 pi), built-in range extender gives accurate measurements and much extended measuring range, 1-100 MHz, Simple io use. Comprehensive computer proven manual This New MFJ-2Q2B Noise Bridge Jets you quickly adjust your single or multfband dipole inverted vee beam, vertical, mobile whip or random system for maximum performance. Tells resonant...

Green Sells

In a way, I suppose you might say thai I sold outT but I plead guilty with an explanation. It all started last spring when some chaps from one ot the bigger banks called saying that they had a targe foreign publisher who was looking to acquire something like my micro publishing empirette. I wasn't much interested because i enjoy what else 1 can imagine. But what would it cost to listen, right So they came to visit and looked over our place. I showed them our growth in sales, which has run...

Dtmf Decoder

The LJM2RK decoder kit converts your receiver inlo a special receiver Or control When a user-selecled lime-lone combination is received, the output provides a relay coniroi for actlvaling speakers or olher devices. INPUT Audio Irom transceiver, scanner, etc. FEATURES Single or dual tones adjustable over the 16 digit Touch Tone range * Adjustable response time Relay oulput Manual or auto reset * Single lone ON latching with different single tone reset OFF * Operalet on > 2VDC * InlerTacing...

Uhf Transistors

TVP MRF238 MRF240 MRF24S MRF247 MRF492 01416 S01477 SO1441 2N6061 2N6QB2 2M60S3 2N8O04 25C195& 2SC22S9 MRF641 MRF 44 MRF646 MRF643 Technical Assistance information on CD, FT. Can out Engineering .Oepf. WE SHIP SAME DAY Minimum Order 20.00 80W 12SW 15QW 15W 25W 3 W 40 W 1W 5W 15W 5W 45W 6 W MHz 145-175 145*1 S 130 175 130-175 27-50 130-175 130-175 130*175 130-175 130-175 130-175 130-175 130-175 1 30 175 430-470 430-470 430-470 430-470 13,00 15.00 27.00 27,00 20.00 2S.50 37,00

Iqk Linear

Fig 2 dippercircutf nt new component values, leads from ths filler through fe ite beads as thev ernler The c se and bypass the ea lo ground h small ceramic capacitors. George Thurston W4MLE Tallahassee FL On page 12 of the July. 1383, issue, the author of lLYou Can Build This Code Trainer was inadverlenlly omitted The author of the article is Harry Lallerman K7ZOV, 1655 W. Lindnei Ave Mesd AZ 85202. There s a way to improve tfn accuracy of the VUM Volume Units Meter, which appeared on page 72...

Dealer Inquiries

CULVER CITY, CALIF, 90230 - PHONE 1213) 837-4870 Wayne Green Books announces an October 1, 1983 deadline for submitting manuscript proposals for the upcoming publication list. Ideas for book-length manuscripts about any microcomputer system or area of electronics will be considered, In addition to payment and royalties, we offer our distribution channels and the marketing support your book deserves. Send proposals or requests for a copy of our Writer's Guide to Editor, Wayne Green Books...

Mini Doomsdays

Your publisher has waxed eloquent on several occasions on what Is wrong with ham radio and on what shouid be done to correct it. At times his zeal may have drawn him into simplistic or impractical solutions e. g., I suspect that getting kids into htgh-school radio clubs is not the compete answer to the Japanese ascendancy m electronics and auios there may be some managerial and political ramifications, too . But he touches on some-thmq for which there may be a solution in place and ready for...

Amtor

AL is proud to announce the ARQ1000 code converter. This terminal not only supports the AMTOR amateur codes, but meets ALL of the commercial requirements of CC1R Recommendation 476-2, The ARQ1000 can be used with present and previous generation HAL RTTY products, In fact, any Baudot or ASCII full duplex terminal at data rates from 45 to 300 baud may be used with the ARQ 1000. Some of the outstanding features of the ARQ 1000 are AL is proud to announce the ARQ1000 code converter. This terminal...

Data Bit I

Inverter circuit schematic 42 73 Magazine September, 1983 Fig. 3. Inverter circuit schematic 42 73 Magazine September, 1983 able. They are more readily available and have less high-frequency noise on the output than the switchers. Table 2 lists the voltages and current requirements for the supplies as well as a typical commercial supply. There have been a lot of articles in this magazine covering the design and fabrication of 12-volt regulated supplies for use with mobile 2-meter...

Saue

JERRCLD J SI'.mit - JA WITH IN BAKU GATED 5TTIC DECQDE amp - RtD . - MOu 1 JERftOL i - IN AH G4T D GATED 5 NC DECODER - USE HITH ANY CONVERTER WITH OUTPUT ON CHANNEL J - REG H . 93 - NOW UHF BLOCK CONVERTER - CONVERTS M1DSANP AMD SUPER Er AND TO UHF - REG 439-93 NOW 4 HOUR liH amp ER L. INF itf f 7313

Letter

Enough to publish my leller iMarch set- ling the record a little straighter about life j , , and living in Latin America particularly on I he Emerald Coast of Colombia , I have been deluged with mail from your readers. So, may I, through your L LeUersL' column, assure them I am most delighted with their responses and will eveniually answer each and every letter Muchas graoias We would i ke lo ask your assistance and thai of your readership in a project that our museum is involved with. We have...

Egbert Ii Rtty Program

Most of the gear I review comes care fully packed n one or more targe cardboard cartons. The Egbert II RTTY program was an exception 11 arrived In a plain, large-size mamla envelope. But Egbert H a Inauspicious size and packing material are certainly made up for by Its features Simply put, Egbert I offers all thai you need to urn your Apple computer into a RTTY Terminal WelF. not Quite alt you will need some cables to go be' tween the ng and compuier, but ihat's IU No terminal unitT no...

Drake E Communications Terminal

Within gt ne pasi two to three attc-r a ramer lethargic period 'rere nas been a resurgence of interest m amatour and SWL RTTY activity primarily this has been due to he state ot the ait moving rapidly forwaro thus making available video-dispiay-type comrnunicahonL ler minals, which, technically ai least, far sur pass The capabilities of teleprinters and theT associated e-quipmeni This revtvaf has also had ttit incentive of lowered costs of such erminais. together with the popular gt oi personal...

Polyethylene Dielectric

RG213 noncontammalinggsVd sheild mil spec 36c tt RG174 U mil spec. 96 shield . . lOcMl. RG11U 96 shield, 75-ohm mil spec 25 ft. RG8U96 shield, mil spec. 27.95 100 ft or 31 ft. RG6AVU double amp h-eld, ohm 25 Jft RGS6AU sfranded mil spec 12dft. RG58 mil spec. 96 shield tit ft LOW LOSS FOAM DIELECTRIC RG8X 95 shield S14.95 100 ft. or I7 lt t 1t. RG3U-20 PL-259ea. end S4.95 RG314U dbl silver shield, 50 ohm. S1,55m. too ft RG8U with PL 259 on each end S19.95 BELOEN Coax In 10Q 1L rolls RG58U 9201...

New Rtty Books

WORLDWIDE RADIO TELETYPE CALL SIGN LIST OF UTILITY STATIONS-eih EDiTiON Comotfed by Univer sal Electronics, Inc. Contains mo e than 4000 can signs m a phanurrericai ord r u- rypes of stations are IrStitJ. 183 unlit sEaiion mremonics and name abOfe-vtatlons. Plus abbreviations for regional states in Australia, Canada. USA and USSR Alt ITU Symbols designating countries or geographical areas TaQie o allocation oA 'nternatfona rait sign senes Revised radio regulations on indentiiicatjon of...

Kilobaud Klassroom

Makes learning electronics fun and easy, First published as a series in Kilobaud Microcomputing, the book combines the learning of essential theory with practical, hands-on experience. The course begins with basic electronic projects and culminates in the construction of your own programmable microcomputer. The direct instructional methods of authors Young amp Stark make KILOBAUD KLASSROOM a simple way for you to acquire a solid background in digital electronics. BK7386 lt 419 l amp wn DigjLt...

Hustler Announces Fixedstation Antenna

The all-new Hustler 220-MH verdea fixed-station amateur anlehno, desrg nated the Model G7-220, as recently in troduced by Hustler, Inc, The G7-22' marks Hustler's entry into th-1 now popular 22C MHz band and complement their existing base and obile a mate j antenna line The 7-dB gai n ot tne iinienn forbolh Transmitting and receiving maHe. it the rt gt ost powerful omnidirectional meter antenna available. The all ne d Sign keeps the Signal radiation pattern a the lowest possible angle to the...

Mfj Noise Bridge I

Adjust antenna for maximum performance. Measure resonant frequency, radiation resistance, reactance. Individually calibrated resistance scale, expanded capacitance range, built-in range extender gives accurate extended measuring range. Individually calibrated resistance range Built-in range extender Expanded capacitance range P N MRF412 MRF421 MRF45G MRF450A MRF453 MHM35A MRF454 MFLF454A P N MRF406 MRF422 MPF433 hflRF 35 MHF449 MRF449A IU MRF455 MRFJ55A MRF458 MRF492 SRF2072 SRF2769 CD2545...

Touch Tone Decoder

HIGHLY STABLE DECODER KIT COMES WITH 2 SIDED. PLATED THRU AND SOLDEF FLOWED G tO PC BOA 10 7WTS 2-7402. AND ALL ELECTRO-1 C COMPONENTS BOARD MEASURES 3-1' 5-1 2 INCHES. HAS 12 LINES OUT ONLY 39.95 NEW 16 LINE DELUXE DECODER 69.95 OELUXE 12-BUTTON TOUCHTONE ENCODER KIT UTILIZJ14G THE NEW SCM 7206 CH3P PROVIDES BOTH VISUAL AND AUDIO INDICATIONS COMES WJTH ITS OWN TWO TONE ANODIZED ALUMINUM CABINET MEASURES ONLY 2 A hx3V lt COMPLETE WITH TOUCH TONE PAD BOARD. CRYSTAL. CHI P AND ALL NECESSARY...

The Tlm Terminal Unit

The Ne a Flesher Corp TU-J7 RTTYOV te-minal unit offers many St jn dard hrgh-performance features r jr you money. It receives up to 300 baud on an three shifts provides TTl- and RS-232-compatible NO including bipolar CW and PTT outputs for complete remote control and isolation of computer-leve wO keying Each TU-47 RTTY filter board Ifcfthlgh sensitivity. hrgh-Q. 3-s age. 6-pd j iclive bandpass filter which provides exce len stability and sharpness. A signal balance restorer circuit has been...

Microcomputer Books

THE SELECTRIC INTERFACE by George Young. You need the quality print that a daisy wheel printer provides but the thought of buying one makes your wallet wilt. SELECTRICTW INTERFACE, a step-by-step guide to interfacing an JBM Selectric IK Writer to your microcomputer. wi11 give you that quality at a traclion of the price. George Young, co-au thor oi Kilobaud Microcomputing magazine's popular Kilobaud Klassroom series, offers a low-cost alternative to buying a daisy wheel printer. SELECTRIC...

It

Our slogan is ' When Our Customers Talk, We Listen1' and we have been listening. The CT2200 Includes these often requested features By popular request the new CT2200. Our slogan is ' When Our Customers Talk, We Listen1' and we have been listening. The CT2200 Includes these often requested features New AMTOR connections for use wilh ARQ 1000 Keyboard programming of all S llbrag-tape messages Expanded I ERE IS storage for a total of 88 characters Non-volatile...