Brochure On Reoufst

Decodes RTTY signals directly from your re* ceiter's loudspeaker. * Ideat f or Sw LS, novices & seasoned amateurs. * Completely solid state and self-contained. Compact size fitsalmosi anywhere. No CRT or demodulator required , . - Nothing extra to Duyl - Built-in active mark & space filters with tuning LEOs for 170, 425 & 850 Hz F5K+ * Copies 60, 67, 75. & 100 WPM Baudot 100 WPM ASCiL * NOW you can tune in RTTY signals from amateurs, news sources & weal her bulletins. The RTTY...

Buy With Confidence

To irflf tha fasto'.ii dolivory from any scanner, -.end or r'hone your order d rect to our Scanner Distribution Center f e sure to c alculate your price uamgtheCt nnces in Ihii ad Michigan resid nls pl .jb-.- add sate ia*. WrpiTen pufcha y ord r-i grp accepted from approved qov-emment genci and most ft- II raied firms ai a t(Mb surcharge for net 30 hi rg Air - lei are sublet o ai's-bility A' ssMii On accesso cs Une Prrces. lorrns and wcficalisns are *ubieci toch,-tngii itno t notKe Oat of Stock...

Algoa Branch Merit Award

This past month some very encouraging letters of support have been received from all parts of the world. Of particular note was the letter I received from Fred Stfutt ZS2JS, representing the Algoa Branch of the South African Radio League, In his letter. Fred tells of their new award recognteing operator efficiency in CW communications. The Algoa Branch Merit Award will be issued to any radio amateur who has had a minimum of 250 CW QSOs with any other amateurs of the world. To quatify, all...

For The Novice

NEW, UPDA TED EDITIONS OF OUR FAMOUS NOVICE CLASS STUDY GUIDE A ND NOVICE THEORY TAPES. NOVICE STUDY GUIDE SG7357 Here is a completely new study guide and reference book for the potential ham. This is not a question answer memorization course. Electronic and radio fundamentals are presented and explained in an easy-to-understand fashion, preparing the beginner for the Novice exam, Includes the latest FCC amateur regulations, as well as application forms, Easily the best path into the exciting...

Info

EMp rut V4ur 4K TRE 0 lo 1& K KU amat cample wilh * g MM5 S (Um4l6 411S1 Oyf> . aim I N& 4 Pocumantatioii Imp ConVbrtJOh h strength jhjjiy molded ftittt* m mbcha brDwn liniUi. SlLdij rti' hottor-, pinctiqr tffvke tnci comportiTi ac-Cfetfibility, TuptbttttOin pan i.QSU thk ulLun, Alildinu tyttu 1 0D fill l ulci lint cuiur) for ' ni peim tdlicsiL alter VvnTe io i and boii& rr-dinrk fui cpD ing etficiincy. HuLid conEtfuctiPrF pt vidn unlimited ipfllicaliam The DTE Blink Dtsk Top...

It

CROSS SUPPORT FASTENED TO E*OS TO STOP WIGGLE CROSS SUPPORT FASTENED TO E*OS TO STOP WIGGLE Fig, 1. Suggested layouts and construction details Photo A. The W8CI operating console. custom setup with a minimum of work and cost. The only tools you need are an electric hand saw, plane, tile, hammer nails, small screws, stam, and sandpaper Material required is a 3 4 x 4' x 8' piece of plywood, a 4' x 4 piece of tempered Mason-itetM, a piece of storm-door plastic to ftt the top of your console, two...

Made In

Non-linear signals can be traced from transceiver to antenna. FREQUENCY COUNTER has six big LED digits, with seven-digit capability. 1 to 50 MHz range (typical), 100 cycle readability, 50mV sensitivity. Peak-reading WATTMETER has three scales 0-20, 0-200, 0-2000 watts and cover all operating frequencies in the 10-80 meter bands. SWR BRIDGE reads standing wave ratios of 1.5, 2, and 3. SYTH x 12VaW x 12L. Perfect for professional and hobbyist radio base stations.

Si

CALIF. 90230 PHONE (213) 637-4870 Steven G Erdet WD8CHH JbOQS Ram ige Avenue Mapte Height* OH 44137 a repeater control system with minimal hardware This computer program, which runs on a MOS Technology KIM-1 micro computer, will replace all the control circuitry normally required for a small

Davenport Ia

The Davenport Radio Amateur Club wifl hold its tenth annual hamfest on March 1, 1981, from 8 00 am to 4 00 pm at the Davenport Masonic Temple, Highway 61 (Brady Street) and 7th Street, Davenport I A. Tickets are 2.00 in advance, 3.00 at the doort Tables are 4.00 each with a 2.00 additional charge for an electrical hookup (fimited number). Features will include over 2,000 worth of major prizes. Hotel discounts and refreshments will be available. There will be a pre-hamfest Saturday night banquet...

Operation Ballarat

One s a Thriving cay in southern Ausiralia about 2JQ Kilometers north o* Melbourne, IT boa s a population of approximately r5rOGOand is the principal city Jn Australia s gold country U is a mour.rn cii, with an air of progress and prosperity fn 0*frame contrast is ttie other Ballarat It is anafmosi forgotten ghost town in the rugged Jesoiaie mountain range which rings Ca ' rnta s Dean Valley Th* Caiifornia BaJEarat ts tied tc Austral iaS thro ar a young...

New Ten Tec Dummy Load Is Air Cooled

A new irt dummy load from Ten-Tec is air cooled for clean, easy use around the shack in testing and alignment. It is rated at 300 Watts for 30 seconds, A derating curve is included for using the dummy load over periods of time up to a 5-minute maximum. Vswr is 1.1 1 maximum from 0-30 MHz and 1.5 1 maximum from 30-150 MHz. The Model 209 weighs Mt pound and is housed in a 1 ViH x 2 W x 6 aluminum enclosure that is perforated with wide siots for free air flow and dark-painted tor more effective...

Realistic

Radio Shack's latest introduction to the scanner market, the PRO-2008t provides the Public Service Band enthusiast with an interesting blend of traditional and unique features. The new. stay-at-home relative of the popular PRO-2001 is designed to be a lower-priced alternative for those whose listening needs require a smaller number of channels without a searching capability. The 2008 is a 1980 addition to the Realistic family of scanning monitors and is midway in price and per formance between...

Scoring

Twenty points for the completed puzzle, or v point for each question correctly answered. Two points for each correct answer. Element 3 Two points for each correct answer. Element 4 Two points tor each correct definition. Give yourself 10 extra points if you unscrambled the message. Okay, DXers, let's see how you really measure up. Remember, big guys, your 100-foot towers won t help you here 1-20 points Once heard a DL on 20 21-40 points 80 countries worked, 25 confirmed 41-60 points-DXCC...

Testerss

LB7360 TEST EQUIP LIB V2 AUDiO TESTERS - BBi .a.ii.i.JBBiB. J a* i-SS LS7361 TEST EOUIP LiB V3 RADIO EQUIP. S 4.95 LB7362 TEST EQUIP LIB V4-IC TEST EO 5 4.95 BK7348 TOOLS & TECHNIQUES S 4 95 BK1064 TVT COOKBOOK t 9.95 BK73S2 UNDERSTANDING & PROGRAMMING MICROCOM PU T ERS 10.95 BK1069 VERTICAL BEAM 4 TRIANGLE ANTNS n n v 1MB e -B II - b - B ,1 ri r i t e 5 m Si SK736S VHF ANTENNA HANDBOOK > 95 BK7370 WEATHER SATELLITE HANDBOOK. S 4.95 BK11B4 WORLDRADtOTV HANDBOOK S16.50 BK7315 WORLD...

T W Sl

Sum of DXCC countries (except US and Canada) worked per band. DX stations score 3 points per W VE QSO. The multiplier is the US states (except KL7 and KH6), VE1-7, V0t and VE8 VY1 worked per band. Maximum of 57 per band. Final score is tolal QSO points times the total multiplier. Various plaques and certifi cates to top scorers. Certificates to each DX entrant making more than 500 QSOs. ARRL affiliated clubs compete for gavels on three levels uniinv ited, medium, and local ctubs. Details should...

Glasgow Ky

The Mammoth Cave Amateur Radio Club will hold its annual Glasgow swapfest on Saturday, February 28t 1981, from 0 00 am to 5 00 pm CST at the Glasgow Rea Market Building. 2 miles south of Glasgow on Highway 31E. There will be a iarge heated buitding with plenty of free parking. Each exhibitor will be provided one free space with table and chair. Additional spaces are available for 3.00 each The building will be open for exhibitors at 7 00 am CST, There wilt be no forums or meetings just door...

Miami Fl

The 21st annual Tropical Hamboree and 1981 ARRL Florida State Convention will be held on February 7-8r 1981, at the Flagler DogTracK. Miami FL Registration is 3.00 in advance and 4.00 at the door Swap tables are an additional 12,00 for both days. S7.00 for Saturday only, and 6.00 for Sunday only, Events will include tech talks and forums, over 100 exhibit booths, 400 swap rabies, ladies' programs, group meetings, and many awards. There will be free overnight RV parking for seif-contained units...

For Toll Free Ordering Call

73 DiPOLE AND LONG-WIRE ANTENNAS BK1016 by Edward M. Noll W3FQJr This is the first collect ton of virtually every type of wire antenna used by amateurs Includes dimensions, configurations, and detailed construction data for 73 different antenna types. Appendices describe the construction of noise bridges, line tuners, and data on measuring resonant frequency, velocity factor, and swr. 5,50 THE GIANT BOOK OF AMATEUR RADIO ANTENNAS With the GIANT Book of Amateur Radio Antennas BK1104 by your...

Other Study Guides

ADVANCED CLASS LICENSE STUDY GUIDE-SG1Q 1 Ready 10 upgrade your license to prevent retaking the FCC iheory nam. you need the 73 Advanced theory juide. SSB antenna theory, transmitters. and eleciromcs measuring lechniques are covered m detail in (Hps saay-tofollow study Juide Special modes and techniques, such as RTTY. are also treated An engineering degree is not necessary to master the Advanced theory try this boo* beTo*e visiting the examiner office .Pub-l hea by TAB Books previous to recent...

New Hamtronics Kits

Hamtronicsh has announced a new single-channel UHF FM exciter called the model T451, Pal terned after the T450 exciter, the new unit is rated at 2-Watts continuous output and is contained on a 3 x 5Vi inch PC The Benjamin Michael 1730 Presentation Model clock. The Benjamin Michael 1730 Presentation Model clock.

Put Your Own System Together

TXA5 ATV Exciter contains video modulator and xtal on 434 or 439.25 mHz. All modules wired and tested 89 ppd m Jk PA 5 10 Watt Linear matches exciter tor good color and sound, This and all modules run on 13.8 Jc 79 ppd TVC-2 Downconverter Tunes 420 to 450 mHz, Outpuls TV ch 2 or 3. Contains low noise MRF9Q1 preamp 55 ppd Sub carrier adds sound to the 29 ppd SEND SELF-ADDRESSED STAMPED ENVELOPE FOR OUR LATEST CATALOG INCLUDING Info on how to best get on ATV, modules for the builder, complete...

Echtorlal Assistants

Chris Bro n KAlli Paul rupp K60NV 1 ASSOCIATES Rot iI BaKif WA2GFE JJifl Cain K1TN Sill Goarwy KE7C S ngfrT ifren Dhw I rig ram K4TWJ Larry KiM tf W& 2NEL Joe Ku r G3ZCZ Or Mft C ieavAy WA3AJR Oa e Jwt nr, K2AGZ Bill Pastermfc WAC1TF JOtlfl Schultz VJ4FA fH rt Start K20AW

Wawasee

Home of BLACK CA T products mm* w us* P.O. BOX 36, SYRACUSE, INDIANA 46567 In the manufacture of quartz crystals, certain limits must be adhered to when finishing the unit. Such limits are often held to better than .001 for commercial applications. Tolerances of this magnitude mean nothing unless the oscillator is the exact reproduction of the oscillator in which the crystal was calibrated. This also applies We store crystal processing specifications tor more than 7,000 types of old and new...

Juk

* OPTIONAL 12 memory circuit with Digital Memory Shift DMS-107 list SI25.00-- 75.00 Optional Accessories FP-107E 115VAC Power Supply-SI 24.00, 600 Hz. CW Filter S40.00, 350 Hz. CW Filter-S4 5.00. YM-35 Scan Mike KUse with DMS-107I-S18.00 8340-42 Olive Blvd. PO Box 28271 Si Louis. MO 63132

Laportein

The LaPorte Winter Hamfest will be heid on February 22, 1981, at the LaPorte Civic Auditorium (main floor), LaPorte IN, 50 miles southeast of Chicago. lGOO to 2 QO MHZ DOWN CONVERTER - CtowFi Converter K Printed Circuit Board with att parts for assembly 50 Vagi Ant& nnt Kit JPrti gain atth weatherproof Shielded enclosure Tunabie Pow * Supply Kit t34 95 An nnfl CoohbooK Tei ted and proven designs. . S 9 95 Assembled *nd Tailed Down Converter wrifl 50 AG59 cabJe * th b to 300 ot m adapter...

Rapid Mobile Charger

J The OEB-TED Rapid Mobile Charger is a constant voltage charger that will charge vyour batteries off a 12 Volt source in 4-6 f< ( hours, You may use the charger at all V J I (Jtimes. this includes transmit and receive _- r perjods It is equipped with a cigarette lighter plug on trie input side and the appropriate charging plug on the output vside Models available now fot the Kenwood TR2400. Yaesu207R. Tempo ( S1 S2. S5 and the Wilson Mark It and tV Otner models available also please call oi...

S

69 99 m9.0g s99 99 159.99 s49 99 S49 99 s64 99 59 99 option n MRF9QE in front end i f d nuise OPTION tt M6B03 In from end. (5 d n Use figure rOdBNo F )ure23dBgair*mbi *imNcrjnn input Fconn Quti.-ni 7- IB Noist P mji.1 '-r 3 dB gam a N ccfir Inpul F conti Oulptj 5dBNi Figure23dBgainm t with MA * omi Input F conn Outpul DATA IS INCLUDED WITH KITS OR MAY BE PURCHASED SEPAPATEL V 99 Receiver Kits and 1 50 Power Supply add S2 GO Antenna add S5 00 Opi< on 1.2 add S3 DO. For complete system add S7...

Most Uptodate Repeater

LISTINGS BY STATE AND COUNTRY LISTINGS BY FREQUENCY 28 MHZ THROUGH 1296 MHZ PERFECT FOR MOBILING WORLD REPEATER ATLAS BK7315 Completely updated, over 230 pages of repeater listings are Indexed by location and frequency. More than 50 maps pinpoint 200O repeater locations throughout the USA. Foreign listings Include Europe, the Middle East, South America and Africa. S4.95.

Ncg Issb

4541 Minute Circuit

THE GRP RIG WITH THE B G fl G SOUND ACTIVE NOISE BLANKER RF GAIN-CW SWITCH-SQUELCH MIC GAIN -DfGtTAL FREQUENCY DISPLAY Hi LO POWER SWITCH 13.8 VDC 5A POSITIVE OR NEGATIVE GROUND. 9,5 x 8.5tTX2.5 1275 N. GROVE ST. ANAHEIM, CALIF. 92806 (714) 630-4541 im Lunacek K0YMI 7745 Xerxe* Aveoue Norr i Minneapolis MN keep the power company on its toes How many times have you needed a simple, cheap, 60-Hz frequency indicator Sure, a commercial reed-type meter is nice, but it never seems to be available...

Ham Help

SWR & POWER METER FOR HFA HF MODEL PM-3HV 54.95 Frequency Coverage 3-150 MHz Int'lit impedance 50- 52 ohms Power Ranger 0 - 20, 200, lOGOW Power Requirement* 12 VDC Illuminated meters for mobile operator SWR & POWER METER FOR HFA HF MOD t.PM4HV 44.95 Frequency Cove-age 3 - 1 50 MHz Input impedance 50 - 52 ohms Power Range 0 - 20. 200, 1000W Requirements None VeJcr for mobile mounting AUTOMATIC SWR & PEAK HEADING HF POWER METER MODEL APM-1H 99.95 Frequency Coverage 1 8 60 MHz input...

Cwsp International Dx Competition

0000 GMT February 7 2400 GMT February 8 Amateurs throughout the world are invited to participate in the annual CWSP contest us* ing all bands on CW only. Entry cfasses include a) single oper atorT b) multi-operator (only club stations, single transmitter), and c) GRP limited to 10 Watts with a single operator. RST and QSO number starting with 001, CWSP members will add CWSP after the report. QRP operators will add power. Example 579015 5. QSOs with same country 1 point, other countries in same...

Touch Tone Decoder

HIGHLY STABLE DECODER KIT COMES WITH 2 SIDED. PLATED THRU AND SOLDER FLOWED G 10 PC BOARD, 7 567s 2-M02. AND ALl ELECTRONIC COMPONENTS BOARD MEASURES 3 1 zk 5 r INCHES HAS 12 LINES OUT ONLY SJ9.95 DELUXE 12 BUTTON TOUCHTQNE ENCODER KIT utilizing Ihe ICM 720iti Chip Provides Poih VISUAL AND AUDIO indications 1 Comes with its own two done snodized 3li.irr.in.jiT-cjiihinel Measures Ohiy 2 3 4 v 1 3-4 Com pie 1.9 with Tou n.Tone pad board, crystal rh-.p nd a'H l efieiSary omponont L to imish tffl6...

Dish

Interlace connections for RTTY repeater modifications. of the IDer ts the same as voice, except the RTTY filters at the receiving RTTY station do not acknowledge the 700-Hz repeater ID frequency, So far, no one has complained of garbled copy due to the repeater ID unit. The repeater can properly ID itself and it will repeat the CW FSK IDs from the user RTTY station Using this relay arrangement gives RTTY priority over voice ijnd keeps voice communication in the input frequency from...

Wired

The CT-W .V the most '-er*ati e. feature polled counter available foi le than 4300.00* Advanced design feature trwludc three selectable gal tirorL rune digiti, 3 ' ' indicator anda unique display told function * h ich hold-. th* displayed ci> unt after the mpur jignal is removed Alst* aiOmHj TCXOtim* base is used which enables eaiy zero beat calibratioil checks agnm t WWV Optionally an intern at nie ad battery pack iacrnal time b* e Input and Micio power high stability crystal oven time base...

Western United States To

Nelson 4 Plymouth Dr Whiting NJ 08759 GMT (M G as 10 i u is ttt 20 J2 Bay ureal nrwest Arnnteqj Radio ftirtre , Nov fit used Amateur Radin suk-n tk service. We feature ktfnuttid. COM, A 3f t-nH *aut Tm-Tet. YH r t.ncirkt nn 6l man -- move Shaver Rjdio. J I37& 5n Bi< iim Aw.,SanJ< *eCA& 513*. W)S-1 no. E pfTlrth riter's purudlsel EBwtronic and me chu i ii' ill ( vitiip ti Htnts f nr computer peopU audi-' pe Jr. haris robot I bidden rapcri-n*j i1n ijjifrt i dj vitvL Catena...

Nbk

ROM-116 accomplishes every* thing under software control. Each ot the many functions that this unit performs is selected by typing a code into the keyboard. All commands use a shift and a character, so it is unlikely you'll tell it to do something by accident, If you enter a shift T( for example, the computer will turn on the transmitter, send a CW ID, and then send anything you have typed into the text buffer. Shift K will accomplish the same thing, only a CW ID will not be sent unless it has...

Ram Sale

MM520OM-4 MKfliift S4.95 each S F A H i> 5 l 'MfACf OG cr. MM5290J 2 1MK4116 UPD416I . . 6.95 each < B RACH 49.flBl 1100 E ACH UQ Op lot) M M5293J-3 A 3.2 5 each Bit DYNAMIC RAM LOW HALF OF MM5290J1 200NS IE4CHSI1ISI L1 0 EACH SJ& O 0OT3 4 K AT IL., HAM LOVJ I'OW H 1QDNS1 (B I ftCH 44 L 1 (100 I ACH 00 lQiJ > b mi 2708 2716r 1702Ar52P3aS2D40 tc. * rtB*l up to 4 tfripi wirhjr 20 rathUltl * Miinta< fti fttaOT *ipO*jr dittfiC* of on* inch * Sptc.dil Bum In wf*i> lock to pUV nptxu *...

Scr Board

77tese are Professional Commerce Grade Units Designed for Entreme Environmems f- 30 to +60* C> . All equipment assembled & tested. For 2Mt 220 MHz & New 450 MHz * -- de ov amic range' deduces ov-efoaj le sense and IM * Se 6dB i 65 KHi H0dB b 30KH 8 Poie Crystal Fll' I E*c audio quality Fast squeicn 4.-0.0005 . Crystal. * SCftiOQ mountec in shiftid& d housing Completely asmb d w'F T caps 5 239 cunn af Gain pot etc fi Ht 0 Resonators with Lo-Noisa Transislor Amp 2M or 220 MH4 Provides...

Set

(pin b, KIM-1 expansion connector) should be connected to PB7 (pin 15, KIM-1 application connector , This will allow the realtime clocks to function. Next, PAO pin 14, KIM-1 application connector should be connected to the repeater's transmit audio, as this line will have the CW tones on it. The next line that you need to hook up is the transmitter keying line This line is PA2 pin 3, KIM-1 application connector). This tine provides a logic 1 when the transmitter ts supposed to be on. You will...

Icom A M Ssb Fm Cw

Call ICOM IC2AT FTR NlCAD 229.00 NEW - ICOM IC720 w AC mikeCall Bearcat 220 299.00 300 399.00 Alt prices fob Houston e*cept where in dtcated Prices subject to change wiihout noiice all items gu aniepd Some items sub jecl prior safe Send letterhead for Dealet puce list Texas lesidents add 6 la*. Pteabe add posiage estimate S1.00 minimum. 1508 McKinney Houston, Texas 77010 713 658-0268 45

Call Toll Free

Cafl 601 323 5869 tor technical information, order repair status. Also call 601-323-5869 outside continental USA and in Mississippi Write for FREE catalog, over 60 products Box 494, Mississippi State, MS 39762 Paul Danzet NI If 2 Dawn Road Nor walk t T06BS1 You don't have to spend 40 to 90 for a phone patch to match your new solid-state rig This simple circuit will give perfectly adequate performance with parts purchased at your local Radio Shack, for a cost of under 10 and one eve-mng's work,...

Jb

Monitor scope measures HP output to the antenna and shows modulation patterns. (See description of trapezoid pattern feature under JB 1001 ) Monitor with low impedance earphones your modulation characteristics for proper mike gain and talk power Built rn audio generator to help adjust transmitter for peak performance Covers all frequencies 10-160 meters, no loss in line therefore can be installed as a constant monitor of your transmitter. Perfect for professional and hobbyist operators.

Icom

Features that have made the field proven and tested IC-255A the most popular 2 meter FM rig on the air today. 25 W 1 W battery saving output Scanning (memory and programmable limit band scan), now with automatic scan resume Programmable splits - Felxibility for new repeater offsets Dual speed tuning -15 KHz Steps, 5 KHz Steps with TS Switch depressed 5 memory channels - For easy access to your favorite repeaters Dual VFO's built in, lockable mobile mount, dynamic mic standard, RIT fine tuning....

Revision

Does not includespeaker swiic s or 2708 POM Now you ran play hundreds of songs using the Builet Super Music Maker. The unit features a single factory programmed microprocessor IC thai comes wilh 20 preprogrammed shori tunoa By adding the addltiunal PRQMS (2706 s. the system Can be expanded to play up to 1l> 00 notes per PflOM Just think a comp.ic' electron instrument that will play dozens. hundreds or even thousands of seieci ens of rrjus c The kit comer, with atl electronic components (less...

Lancaster Pa

The Lancaster Hamfest will be held on February 22,1981, at the Guernsey Pavilion, located at the intersection of Rtes, 30 and 896t east of Lancaster PA. General admission is 3.00, except children and XYLs. Doors will open at 8 00 am. AH inside spaces are available by advance registration only and are 4.00 each for an 6-foot space, which includes a table, There is a limit of 2 non-commercial or 6 commercial tables the registration deadline is February 13. 1981. AH vendors must set up between 6...

The Hong Kong Firecracker Award

Sponsored by HARTS, the Firecracker Award is issued to licensed amateurs and shortwave listeners worldwide. Contacts on or after January 1.1964, are valid. To qualify for their very spectacular diploma, applicants wilhinzones 18,19,24, 25,26,27, and 28 require confirmation with at least 10 individual VS6 stations. All other zones of the world require only six (6) VS6 contacts to qualify for the award. Awards are issued for all CW, all phone, and mixed mode, Single-band accomplishments will be...

New Automatic Antenna Tuner

A new automatic antenna tuner for use with amateur, com-rnercial, and government communications systems has been introduced by the J. W. Mifier Division of BeSI Industries. Auto-Track Model AT250Q antenna tuners can handle power in excess of 2500 Watts PEP over a frequency range continuous from 3 to 30 MHz. Average automatic tune-up time is 15 seconds. Front panel switch positions permit the use of three coaxial antenna outputs, one Jong-wire antenna, and one coaxial tuner bypass. Impedance is...

BO

Kenwood's done it again Now, it's the exciting TR-9000 2-meter all-mode transceiver,., complete with a host of new features. Combining the convenience of FM with long distance SSB and CW in a very compact, very affordable package, the TR-9000 is the answer for any serious Amateur Operator Versatile You bet Because of its compactness, the TR-9000 is ideal for mobile installation* Add on its fixed station accessories and it becomes the obvious choice for your ham shack See your Authorized Kenwood...

Nine Dragons Award

Probably one of the most elaborate of my Far Eastern awards is the achievement diploma known as the Nine Dragons Award. Sponsored by HARTS, this brilliant award with its red. black, and shiny gold accents an amateur s wall with the dignity that makes all award seekers proud, To qualify, the applicant must make contact with a country In each of the following zones 16, 19, 24. 25h 26, 27, 2BT 29, and 30. The contact made in zone 24 must be with a VS6 station. Stations located within any of these...

Rtty

Stupid, you ask Well, a dumb terminal, conv monly called a glass Teletype, just inputs what you type and displays what it gets. Smart terminals can do all kinds of fancy editing and other neatniks. This one is somewhere in between. With the resident 6800 and some RAM it coutd be given some smarts with the appropriate programming, but remains of limited usefulness if what you real-iy need is a computer terminal. Next month I will take a look at some belts and whistles available for the...

Write For Complete Details Or See Your Local Klm Dealer

20,15, & 10M - FORTHE MATURE HAM ONLY KLM 17025 LAUREL RD MORGAN HILL. CA 95037. (408) 779-7363 pieces oi clear plesiglas A , IuBSHKHI GREAT CONVERSATION PIECE BBE BM Kil is comnlete including top quality PC board, al components pre-cut and drilled piexigtas and all hardware. 29.95 Wired arid

To

Ance to the load This toad is not a 500hm dummy load but a real-life antenna v hose impedance may vary drastu ally with the operating frequency and with weather conditions such as wind and temperature, The solid-state rig is shown in Fig. 1(b), A set of transistors feeds a fixed bandpass filter. This filler changes only as you switc h bands The key difference and advertised advantage) ts that no tuning is required Just change bands, dial up the operating frequency, perhaps peak a preselec tor,...

Xqk

Phil presses S6 when at the rig, illuminating my reset switch lamp in S3) and warning me of Phil's operation. check with Phil over the intercom to see what antennas are available. All control switches are momentary SPST push-buttons with internal lamps. We home-brewed the antenna relays, not only because of the availability of parts in the junk box, but also because of the cost of commercial units. The relays were enclosed in small aluminum miniboxes, with all coax connections made...

Eik

Great deal of time experimenting with antenna systems for VHF and HF. Bob designed and built one of the nation's most exotic repeater systems WD9G0E, located in his hometown of Mar* issa, Illinois, some 70 miles outside St. Louis. He also spearheaded the now-annual ARCH Convention in St Louis and has accomplished so much in his life that it could fill many volumes, Bob's book Is covered in the Review section of this issue of 73 Magazine.

Xca

Choke Use this removed wire to torm the Nnk winding, L2. Wind L2 over the Q1 side of L1, L3 should be made similarly except that no hnk is needed. The chokes work surprisingly well as resonant circuit inductors at 13 and 7 MHz. One departure from the norm in this projec t was the use of +24 V for supply voltage rather than the more common 12 volts. I his vv .is done for several reasons. It is much easier to build and get operational a 24-voIt supply than it is the additional stages required to...

Communications

5456 North Milwaukee Ave. (312 631-5181 (within lllirwisj Man U kiirw UB fC > D 95 Banks Rd Swampsct jft MA 0190* In 3 years, organized _ 11 ham code and theory classes, with the following results starting the first of the year in two different locations If I can do it, so can you here's how 1 did it, with help from my club members. It all started when I joined the local repeater club and became friends with the club's secretary. Every morning for months we would meet at the local post office...

Lyo

Extend the r rgr of your courier to 600 MHz Works with atl counters Less than 150 mv sensitivity specify -10 or - TOO Wired lested PS-TB S59,95 Kit, PS-1B (44.95 Simple Ciass C power amp features 8 times power gam 1 W in forsout 2 W in for 15 Out 4Winfor3Gou1 Ma* Output Of 35 W mcriedibfe value complete with an parts, teas case and T-fi relay PA-K 30 w pwr amp k l 22.95 TR-1, RF sensed T-R reiay kit 6.9S t'in i TOr as ysed tn PA T 150 mh* Ju 95 RF actuated relay senses RF (tW) and closes DPDT...

Fm

* 220-225 MHz * 12 channels crystal controlled 10 watts tf you're not on 220, now is the time to try it with an FM-76 1911 Otd Homestead Lane Greenfield Industrial ParV East Lancaster, PA 17601 ORBIT is the Official Journal for the Radio Amateur Satellite corporation (AMSAT), P.O, Box 27, Washington, DC 20047. Please write for application. For a FREE SAMPLE COPY please send 1 to cover First Class Postage and handling to Orbit, 221 Long Swamp Road, wolcott, CT 06716. A real alternative The...

More Features

Tune switch with LEO keys transmitter for tun mg. Tune key provides continuous dots to save finals. Built-in sidetone and speaker PTT (push-to-talk uutpul keys transmitter for Baudot and ASCII modes. Reliable solid state keying for CW grid block, cathode, solid state transmitiers (-300 V 10 ma. Max, + 300 V. 100 ma. Wax), TTL and open collector outputs for RTTY and ASCII. Fully shielded. RF proof. Alt aluminum cabinet Black bottom, eggshell white top. 1 J,D x 7W x 1 V 'H (front) x 31 2H (back)....

Military Surplus Electronics

COU-fNS RI S94-AfrC ISA diftnh tumccrv *< rh comio< I 0 rh*u MHi AMmlwd chjwvirh rgr i 15 Mt iO i 00 PET fS*. AM tllcZi Lili'-AW H Wl L. . tfw-.-t*-* ZSVCH po fvjpph Si 45.00 ANTIQUE ibfirji ii-.nu company fntiOel SW-37 h-iHPHpti ionrrdrr - ' JJ twheHtr Luiv tjr.Mjiirui. an< l utcdby fear I y A.rmv Si jmICorp 26.50- CV< B9'URA< 6 rrleiype converrtr wuh built-in 3 *copc. iflke* awlio Trom Ott yef re flny trlcl ypc miiLhmr *) raeu mount. I25pOO tnc AND ARC a owners wc h,ive h rd to-fUid...

Increased Performance Antennas

If you want the utmost in performance from your scanner, isessentia' that you usean externa* antenna We have six base and mobile antennas specifically designed for receiving all bands. Order *A60 is a magnet mount mobiie antenna. Order *A61 is a gutter clip mobile antenna. Ord r a AG2 is a trunk-hp mobile antenna Order **A63 is a inch hole rno *nt Order A64 isflHinch snap-m mount and A70 is sn ail band base station antenna AH antennas are S35.00 and S3.00 for UPS shipping in Ihe continental...

All Japan Districts Award

The Worked All Japan Districts Award is sponsored by the JARL and is available to licensed amateurs and SWL stations on a heard-only basis. This very basic award requires the applicant to make contact with one Japan station in each of the ten Japanese cail districts. This award is issued for single- and mixed-band accomplishments and aiso recognizes single- and mixed-mode achievements as well. To be valid, all contacts must have been made on or after July 30. 1952, To apply, have your list of...

Harc Bomb

That's the Hudson Division ARRL Convention., . an almost complete disaster according to the few survivors. Hardiy any exhibitors and one of the most scant attendances of any HARC Convention. Lesl I be given a hard time for just reporting the debacte without making some suggestions for the improvement of the show, V6 ilk to suggest that the event be pu in the hands of someone competent that a decent program be devised which features someone who will attract attendance ,,,that manufacturers and...

Of

Fig. 2. tmpedance change vs. power level, 3) Be careful in selecting a Imear amplifier Untuned inputs on ground ed-grid linears may have been perfectly acceptable with vacuum-tube exciters However tf your soEid-state rig has power-f oldback or some other protection and the linear does not have a 50-0hm input impedance, you either might not be able to drive the linear to full power or you might have to use a matchbox between the rig and the linear 4) Be careful (especially on VHF) of mating a...

Morse Code Practice

There are two Morse code practice modes. Mode 1 random length groups of random characters. Mode 2 pseudo random 5 character groups in 9 separate repea table fist. Wilh answer ffet. Insert space between characters and groups to form high speed characters at slower speed for easy character recognition Select alphabetic only or alphanumeric plus punctuation. Pause function lets you stop and Ihen resume. Plug in a paddle to use it as a deluxe full feature keyer with automatic and programmable...

Atlas Crystal Filters For Atlas

HAM GEAR 5.52 - 2.7 8 5.595 - 2.7 8 U 5.645 - 2.7 8 5.595 - .500 4 CW 5.595 - 2.7 USB 5.595 - 2.7 8 L 5.595 - 2.7 LSB J310 N-CHANNEL J-FET 450 MHz Good for VHF UHF Amplifier, Oscillator and Mixers 3 l.00_ AMPHEN0L COAX RELAY 26 VDC Coil SPDT 60-11892-13 100 Watts Good up to 18 GHz 19.99 each___ 78M05 Same as 7805 but only i Amp (5> 5 VDC 49c each or l0 3.00_ NEW TRANSFORMERS F-18X 6.3 VCT < a 6 Amps 24 V (S> 1 Amp 25.2 VCT 2 Amps 10 VCT 3 Amps 20 VCT ( 0 1 Amp 12.6 VCT 2 Amps 28 VCT 100...

Pll Cmos

NPN G antral Pyrpos Qaf firarjl I 'r 1 w sp(n B A fS g TO' J .KW ) T h np T ,a',-it 'jCtT w 'sp c1 Tune* 1C P U T mf O( o isolator W'1 specs . u l LtoaaO v. specs fJNFJ Powfi 1 -220 .1 . . . Sensitive Gato 1 U0V 4A Sen e G OlA il r - --- T -jg for Trr C < n AC piiasf cQiv -operation

SA

100 onmv He Thermit(or Mount 100 Ohms Thermistor tount (USED) 200 olns Sea Thermistor Mount (USI J 100 ohnvr, vg. Thermistor Hojn 'UfiCD* 100 onrs S Thenrmor Hwnt (USED) 100 otni ThWfristor ftount (USED, 20Q ows Neg Thprmisl r Haunt -SED S.& i to i 2 CHi Viriftfrie attenuator to Oda 8.2 to 12.1 GHi enable Attenuator . i. 50dB 1 to 2 GhJ Vjrid& H Attenuator & to E20dB 7.05 to ID GHZ frequency Meter 3.95 t i> , 5 iHi Frequency eter 5.85 ' D B i' G .' f r.-Mjupr.cy Metf- Carriage *itr...

For The Home

Our rvcaivar il it fDu W Ch rtn ri ol skin directly Iforr* *irlh orbii n cTV Ht fiii*t> HBO. Shovrtlm , iup f (lom. iporio and mavlfls irwn i'Okmd world SoT if you jam at 110 and drive 70 and ne is moving 50 then his unit sees two speeds. The jam of 110 minus 50 which gives 60 and 120 minus 50 which gives 70. His unit will display 70 and you are in for another ticket, So, we are back to giving him a reading that he won i believe if you want to jam him. Let's say you like to drive 70. then a...

Calendar

Feb 7-8 Feb 7-8 Feb 7 8 Feb 7-8 Feb 7 9 Feb 9*10 Feb 14-15 Feb 14-15 Feb 21-22 Feb 27-Mar 1 Feb 28-Mar 1 Feb 28-Mar 1 Feb 28-Mar 1 Feb 28-Mar 1 Mar 7-8 Mar 7-8 Mar 14 Mar 14-15 Mar 21-22 Mar 2t*22 Mar 21-23 Mar 28-29 Mar 28-29 Aug 8-9 Sep 12-13 Sep 12-13 Sep 12-14 Nov 14-15 Dec 26-31 CARF Phone Commonwealth Contest BARTG Spring RTTY Contest Spring VHF QSO Party CQ World Wide WPX-SSB European DX Contest CW European DX Contest Phone G-QRP-Club CW Activity Weekend Washington State QSO Party...

Human Engineered

A lot of thought has gone into human engineering the MFJ-494 Super Keyboard For example, you press only a one or two key AN controls and keys are positioned logically and labeled clearly lor instant recognition. Pots are used for speed, volume, tone, and weight because they are more human oriented than keystroke sequences and they remember your settings. A meter gives continuous readout ol buffer memory and speed. Two characters before full, the meter lights up red and Ihe sidetone changes...

Uci Enterprises

Box 494 Mississippi State, MS 39762 For 279.95 you get CW, Baudot, ASCII, buffer, programmable and automatic messages. Morse code practice, full featured keyer, human engineering. Sending CW has always been a task, especially when you get a tittle tired. Electronic keyers help, but it's still too much work. Now MFJ has a Super Keyboard that makes sending perfect CW effortless. It alf,o sends Baudot RTTY and ASCII. Big deal you say. What's so special about tha . There are lots cf keyboards. Yes....

Handbooks For The Hamshack

WORLD REPEATER ATLAS BK7315 Completely updated, over 230 pages of repeater listings are indexed by location and frequency. More than 50 maps pinpoint 2000 repeater locations throughout the USA. Foreign listings include Europe, the Middle East, South American and Africa. 4.95 THE PRACTICAL HANDBOOK OF AMATEUR RADIO FM REPEATERS BK1185 by BIH Pasternak WA6ITF (author of 73 Magazines monthly column Looking West) This is the book for the VHF UHF FMer, compiled from material submitted by over a...

Qcwa Qso Partycw

0001 GMT February 14 2400 GMT February 15 This is the 24th annua QCWA QSO party with separate weekends for CW and phone. Contacts with the same station on more than one band can be scored only once. Contacts made with captive stations, such as when operating in local nets, are not valid. QSO number, operator's name, and QCWA chapter iden-tiftcation (official number or name . Members not affiliated with a chapter should use AL If a member belongs to several chapters, then one must be chosen and...

Texas Independence

Brenham Amateur Radio Club wili be operating its second an nual special event QSL station to commemorate Texas independence Day and its observance at the site where independence was declared from Mexico on March 2, 1836, Washington on the Brazos, Texas. We plan to operate from 1600 UTC+ Saturday, February 28+ until 2300 UTC, Sunday, March during times when the bands are openjno nets are scheduled) on the following frequencies plus or minus QRM 3944, 7244. 14,344h 21,144, 21,444, and 2SP544 kHz....

Lens

Fig. 1. (a) Cross-sectional view of Kenwood's vfo pilot light system. lb) Cross-sectional view of LID vfo pilot light system. The red lens may be removed easily after cutting away the cement After removal of the red lens, the hole is slowly enlarged with a reamer to the point where the LED fits snugly in the hole (caution shouid be exercised, as the plastic plate is very soft and one easily can exceed the desired hole diameter). Referring to Fig. 1(b), with the Li D in place, the clear plastic...

Linear

The communication, t. phase of the art. as listed in Part 97.1(d). Thanks for lending an eart I like 73 much belter than ltthe other one, but I agree that perhaps you might have at least one feature for the beginner or Novice operator. Cindy Dalmadge KAfllMG Colorado Springs CO politicians who beat around the bush and tell each group just what they want to hear, sometimes distorting the truth. Wish we had more people in his position who would support our hobby. We as hams must speak up and band...

Bk A Guide To Ham Radio S

S 4 95 K 7325 HOW tq BUILD A MICROCOMPUTER & REALLY UNOERSTAND IT -5 9 55 QK1028 IC OP AWP COOKBOOK S12 95 To order, complete the following postage-paid card, or itemize your ordet including detailed credit card information or check and mail to 73 Magazine Maif Order Dept. Peterborough NH 03458. BK7312 MAGIC OF HAM RADIO S 4'35 BK1022 MASTERHANDQOOKOF HAM RAD(OC R- BK7340 THE NEW HOB8Y COMPUTERS. . 1 4.95 CT7300 NOVICE THEORY TAPES 515 95

Other Regency Scanners

NEW R1040 169 00 Touch MIOO 199.00 Electra's cordi- Freedom Pr does e rytHng an ord-nary pnoni> does and more Brause it cordiess. you can take it nyv here inside or outside or the patJO, by the pool, in ihe garage, in the workshop . ewen nent door at Ihe neighbor's Model FF-500 has pushbutton dialing. Rechargeable n -cad batteries included. Baltery low light. Secure feature. Telescopic antenna Your cosi is Model FF-1 500 has the same features as the FF-500 but also includes a charger cradle...

Rac

Code reading makes ham radio more fun A code reader can add to the fun of ham radio by allowing you to copy many signals that are too complex or too fast to decode by ear. you can get in on such things as news-wire service transmissions weather information and financial reports that are sent by radfOteletype (RTTYV ASCII computer language or Morse code. Some code readers only copy one or two types of signals but rhe Kantronics Field Day 2 tm allows you to copy rtty at 60, 67, 75 and 100 WPM...

Social Events

Listings in this column are provided free of charge on a space available basis. The following information should be included in evefy announcement sponsor, event, date, time, place, ctty, state, admission charge (if any), features, talk in frequencies, and the name of whom to contact for further information. Announcements must be received two months prior to the month in which the event takes place. They should be sent dtrectly to Editorial Offices, 73 Magazine. Pme Street Peterborough NH...

Innovators In Digital Communications

COMPATIBILITY with any radio transceiver. Simple speaker audio input, no extra equipment, terminal units, etc,, required. Everything is built in Narrow band single tone phase correlation detector for CW dual tone computer enhanced demodulator for RTTY. EXTENSIVE SHIELDING and a heliarc welded heavy aturmnum enclosure for a degree of RFI immunity thai plastic or loose sheet metal cased units cannot touch. Solid quality you can feel, SPLIT SCREEN OPERATION allows you to type and edit your...

Hal Communications Corp

Urbana, Illinois 61801 Box 365 217 367 7373 The DS3100 Super Terminal is now even more versatile with the addition of the new MSO-3100. The Message Storage Option (MSO) adds mass storage to the DS3100 so that relatively long messages may now be stored and replayed at will For example, the MSO-3100 will provide more than 32.000 characters of additional storage- approximately 450 lines for messages Messages are stored in variable length files with user-assigned file names and pass-words for file...

Si T Z

Ceramic disc (272-xxx) '80m 220 pF 40m 47 pF 60m 690 pF (220 and 470 pF in parallel) 40m 420 pF (220, 100, and 100 pF in parallel) BC variable, approx. 30-200 pF SO-239 (278-201) Phono Jack (274-386) Phono jack (247-252) 80m 8,4 uK 8 turns removed (273-101) 40m 10.0 uHr no turns removed (273-101) 5 turns wound over side of L1 Approx. 30 uH, 40 of turns removed (273-102) 80m 2.4 uH, 16 turns removed (273-101) 40m 1.2 uH. 23 turns removed (273-101) RS-2033 (276-2033) RS-2038 (276-2038) Each is 3...

Searching For The Sounds Of Tomorrow

NORTH CAROLIN A 2 9 2 Fred Bona t* IV5QJM PO Box J 2072 Capitol 5 ration AxiStm TX 78711 Permanent residents of Luckenbach, Texas, whose numbers fluctuate between three and five depending on the time of year and which way the wind is blowing, took the whole thin in stride on that May weekend for instance, thousands ot country-and-western-music fans had jammed the tiny Texas hill counfr community to listen to their heroes, Willie Nelson and Waylon Jennings, sing the praises of...

Mast Not Supplied

Outstanding mechanical design makes the IsoPole the only logical choice for a VHF base station antenna. A standard 50 Ohm SO-239 connector is recessed within the base sleeve (fully weather protected). With the IsoPole, you will not experience aggravating deviation in SWR with changes in weather, The impedance matching network is weather sealed and designed for maximum legal power. The insulating material offers superb strength and dielectric properties plus excellent long-term ultra-violet...

M

It you plan to Install a new Repealer or VHFAJHF Link System (with or wio Auto patch), you'ii find that you can1t find better quality, more reliable equipment, with all of the features and options you want at anywhere near our prices if you can find It at all For many years nowt we have specialized specifically in the field of VHF UHF Repeaters, Links Transceivers and all of the accessories to make.- up a complete system. We now have hundreds of repeater and link systems operating successfully...

The Answers

More than one budding DXer has made his first African contact through this fine service. Net time is 1800 UTC, daily. 3 1. Obviously not the 21st cycle in the history of the Earth, but only since man started counting around 1750. 4 2. You may need a iong radio antenna'' for this band, but that has nothing to do with LORAN, 5 4. tf you chose 'Cuba, Til bet you didn't get your General ticket while the FCC was using its circa 1968 tests. A question similar to this one went a long way to...

Mike

Mikf kil' Transmits a Stable signal up lo .300 yards with encen-tionil ludiO quality by means its built m inwtrei mike Kil includes ca& i link - an of I switch anienrra hallfry and super instructions This See rnuSft come attve1 3 different lights flicker *iih music One light each tor high mhd-range and lows Each individually adjustable and drives up to 30D W runs on 110 VAC ConWl* arty TV 'O .-JiO r s I-r L.T tr e OPH ic* < 6 fl-nt on * A great attention geiler wht h aMemattfh fiasi> es...

Clock Kits

Row okl tnofltn mrr htrt gain Over 7.000 Sold to Dal*. Be on( or ihf gjng and order your todayH Try your hand ai building the finest looking clock on ine market lis satin finish snodized aluminum cas > looks great anywhere while six 4 LED digits provide a highly readable display Thrs is a complete kit no extras needed and it only takes 1-2 hours to assemble Your choice of case colors siFver gold, black (specify) Clock kit, 12 24 hour. DC-5 Clock With 10 mm ID timer. 12 24 hour, DC-10 29,95...

Pso

Th s is a follow-up mailer for a class we didn't have any money for At least half the class responded by sending money, always be in the second room taking one oi the two exams Because the FCC doesn't let instructors have bulk exams anymore, the Novice instruc tor lis always burdened with the extra work oi sending exams back to the FCC at staggered times. ) contacted the director of (ontinuing education at the school I selected and arranged tor three rooms. One was a large sewing room with big...

Ultraclean Synthesized Sine Wave Audio

Outputs for AFSK, and SSTV are keyboard programmable for any tone pairs between 500 and 3000 Hz, SOLID STATE SWITCHES as weil as high speed mer cury relay (n.o. and n.c, keying outputs, ZOOM DISPLAY MODE doubles the character size for even easier viewing. Video can be black letters on white background or reversed white on black. TAPE RECORDER INTERFACE for pre recording your message on standard cassette tape for later retransmission, or for direct recording of received signals or computer...

Never Say

This is one of the Golden Arches attached to the hotel. It was a handy place to get milk. Not being a big Coke fan, I didn't pursue the nickel Coke offer I did invest in their egg McMuffin for breakfast now and then, The crowding of Tokyo has forced much of the growth to go underground. This is a small part of the four-floor shopping complex which is involved with the Sunshine Prince hotel. where we stayed. There are two McDonalds restaurants in this one complex There is also an almost infinite...

Ucosdc

350 MHi Prescaier Orvlde by 1CW11 350 MHz Prescaier Divide by 5 6 650 MHz Prescaier Divide by 10 H 650 MHz Prescaier Divide by 5 6 1 G H Divide D* 24& 25G Prescaier 600 MHz Flip Flop reset ECL VCM Pnase Frequency Delect Dual TTL VC M High Speed Dual 5-4 input NO'NOfl Gate S9 50 950 1650 16.50 29 90 12 30 < S3 362 382 12 5000 15 40 i TRW BROADBAND AMPLIFIER MODEL CA615B Frequency response 40 MH to 300 MHj Gam 300 MH 16 tiB Mm . 17 5 dB Ma* 50 MHz 0 Id - i dS from 300 MHi 24 volts cJc at 22Q...

L

Early in 1977, after having passed the radio amateur examination in South Africa, I had to travel for my company to the German Federal Republic In South Africa, I could find no information readily available on how to obtain permission to operate in other countries A phone call to the DARC (the Deutscher Amateur Radio Club) amateur radio center, the Amateurfunk-Zentrum (AFZ) in Baunatal, West Germany, brought me all information on how to get a guest license. After returning to South Africa, 1...

Mail Order Electronics Worldwide

CA 9400 FULL O BIT LATCHED OUTPUT * KEY KFYaOARti Tn JE& OO tn ) Kit two tep*r t* hftxjcie im l dfgittPffHluijHd iron lequvnli K- v irlitti T< i cllo.v UiiiiLi iji o-rj'ji-i MhFiM.i rar Q-Oji m n rDOf ch-hof fjr B bit 'mrpiory clr LJtti TH4 flddttL nf k.vio flfO y .J ( cl 1er ijS'.t opoinLiom with ora hnu-inn a biKat fe pLi'pLjr avultbl* Tn o jipLHi *tv iriTthtd' hd rnnreiartd Jth S LED 'iiOo- t Aim *ntrv H'- tw. FtHWl f L M B-bPl Ilth QUtDLl ffli miCr...

Tnt

Fig. 6. ffernofe-confro routine flowchart. NEW WIRE-WRAPPING TOOL DOES ALL TITOTT The new WSU-30M 'Hobby Wrapt+ tool performs the complete wire wrapping W O U' function. First, the too wraps 30 AW0(0.25mm) wire onto standard 025 inch 0.6mm) square DIP Socket Posts In addition, the tool also unwraps and, finally, it strips 30 AWQ wire nlck free, I

Dealers

Yrjiir compamj name and minstw ran ran tain up to 25 wurds juras fit-tir as S ijrarty (prefxiia), or 15 pt r month (prepaid quarterly). Xo mention of mail-order business or ana code permitted. Directory t(*xl and payment must reach it* 60 days vn advance of publication. For ex-a mpk advertising for the April iv sue mwt be Ut our hands by February 1st. Mail to 73 Magazine. Peterborough AW 03455- A TTS't Money Ross WB7B Z, baji Ihir tuitet Stock nf Arn.i tcur Gear in the Intenmiuntain West and...

Compare These Features With Any U N It At Any Price

6 MHZ FREQUENCY COVERAGE, INCLUDING CAP MARS BUILT IN Receive and kansmit 142 000 to 149 995 MHz in selectable steps of 5 or 10 kHz. OMFAflE tZE Unbe ev ble Criy fc> 2*- OyQ1 COMPARE MICROCOMPUTER CONTROL AIJ frequency control is carried out by a micro computer, MUSICAL TONE ACCOMPANIES KEYBOARD ENTRIES When a hey is pressed, a brief musical lone indicates positive entry unto the microcomputer FREQUENCY CONTROL FROM MICROPHONE OR PANEL Frequency is selected by buttons on the front panel or...

Infotech Mc Trimode Keyboard

A microprocessor controlled keyboard that generates Morse, RTTY S ASCH 4 lo 125WP.M. in 1 WPM. increments sidetone with rone and level adjustments special keys AS, BK, BT, AR. SIC CO, DE 2 shifts 170 & 850 hz) * Built in quick brown for generator on alf modes * CO & DE special keys on ail modes * 10 recallable user programmable message memories of 120 characters each Keyboard control of all functions 4 row keyboard eliminates figures fetters shifting on RTTY O5602 Me Heritage T -'. it...