New Callbooks

Announcing the biggest change in its & 5-year h story, Radio Amaleur Callbook. InC-. Presents three new publications for 1966- The North American Callbook, the International Callbook, and Ihe Cal i book Supplement will provide current QSL information for ove* & HO,OOG radio amateurs throughout Ihe world, To be published on December 1, 1985. the new 1986 North American Callbook lists the licensed amateurs fn-all countries in North America plus those in Hawajj and US possessions. Not just a...

Silicon Solutions

GrafTrak II provides real-time graphic display of a flat projection map which moves under the selected satellite sun moon star coverage circle and updates once per second. Spherical profectaon views as well as graphic screen dumps to your Epson Oki printer can also be produced. Requires ah IBM PC, PQXTr or true compatible, an IBM Color Graphics Monitor Adapter. 8087 math coprocessor, inimum 256K RAM with 512K recommended, DOS 2.0 or later, and either two 360K floppy drives or one 360K floppy...

Aeaeaeaeaeaeaeaeae Aeaeaeaeaeae Aeaeaeai

Commercial ., ,, 60 per word Prepavmeni tjy checfc or money oroer is eQuired with your ad No discounts or commissions are available Please your payment to 73. Rates for multiple mserllons are available on request Advertising must pertain lo amateur radio products or services. No special layouts or positions are possible All adverting copy mus be submitted typewritten la -r-sojced' and must Ificlude full nair snc ddress. Cop* limited lo IOC words, maximum. Count oni> word in text. Address,...

Aiv Help

I am looking for installation and service data including schematics) for a Teledi-aler 32T automatic dialer, model 321 02, part number 201566-2, manufactured by American Telecommunications Corporation. Sheldon Daltch PO Box 8091 Greenville NO 27835 8091 i would like to purchase any of the following units, complete or in pieces AHI UGC-74TTY, R392yURR, R1I2VTRC-87 (with manual), RT-71 2MRC-1Q5, 40OT 1, ARC-159, GRC-168, AN AtC-14, 18, OR 25, ARC-92. ARC-98, ARC-1Q9, ARC-123, ARC-126, ARC-138,...

Also Has The Most Impressive Performance Features

(AND GIVES THEM TO YOU AS STANDARD EQUIPMENT ) HIGH QUALITY XMTR & RCVR MODULES FOR REPEATERS, LINKS. TELEMETRY, ETC. SENSITIVITY SEGOND TO NONE 0.15 uV (VHF), 0,2uV(UHF) TYP. SELECTIVITY THAT CANT BE BEAT BOTH 8 POLE XTAL FILTER 4 CERAMIC FILTER FOR > 10GdBAT 12KHZ. HELICAL RESONATOR FRONT ENDS TO FIGHT DESENSE & INTERMOD. OTHER GREAT RECEIVER FEATURES FLUTTER PROOF SQUELCHr AFC TO COMPENSATE FOR OFF-FREQ TRANSMITTERS, SEPARATE LOCALSPEAKER AMPLIFIER & CONTROL CLEAN, EASYTUNE...

Am Help

I ne d an mierface card to go frorn a Franklin Ace 1000 To an IBM mooe 32S Printer, Ttie pnnter has a seri-a connec Hon Any heip will t> e appfeciat d, Jahn Anttey K60NM PO Bo* 405 St. Cldlr Stores Mi 4B08 040S I would like lo obt iri copies ol tue f t- IOwing Out-cf print putiiica Ons CQ S ' plus Conversion Handbook. Surplus Radio Conversion Manuais (volumes 1-3), and The Surplus Hand booh I wilt accept pno-tocopj& s Dul prefer originals, i will cover ail costs, Please write tirsi Scot A-...

Antemna Elements

OVERALL _EMGTH 5F HE CQ-.L - JRM WJL CEPEMD ON TOTAL NUMBER OF TURNS turns tor the coil is given, i he coil is made by winding 12 insulated house wire on a form made of 2 Vi -out-side-diameter plastic pipe. I use 2-inside-diameter Amoco rigid PVC conduit. The wire is close wound, with the plastic insulation acting as the spacer. The result is a coil with a pitch of 8 TPi see 21 exactly as any other dipole or inverted vee. I do not recommend the use of a balun but suggest the use of a good...

Ap

* Use your computer to decode DTMF touchtones. * F5c PiUP. a II Ifi.dtoitiiasfastas'iHfeyc h tifrtrarismitte * Easily program your1 computer in BASIL to decode multif-ci iqit 'Liti-in G', display diqits, sound olyrm-> . ubse- vv secrat cotiss. conLrnl relays, remote bast * Simple to uuv. just provide + 1 2 VDC and bliOiO. iicrjk lwqwrrES tnthe HS 23 Cscrnjl nput on your compu ter entfera simple 9A'SIC program ami be in r.0 dernde * Samnlf BASIC program and instructLons mclLiaenl

Arrl Sweepstakes Cw

Starts 2100 UTC November 2 Ends 0300 UTC November 3 PHONE Starts 2100 UTC November 16 Ends 0300 UTC November 17 US and Canadian siaHors work other US and Cani dian Station3 using 1.8 through 28-MHz bands. Operate no more lhan 2i of llio 30 hours with on ofl limes noied eleaily Jn your log. Listening time counts lis operating time Operating categories nclude single opeTa(or and rouiti opera)or a single iransmifrer no crossmode contacts, and each sta- lion can be worked only once regardless of...

Astatic Silver Eagle

Amateurs report that for best results on SSB, the D-104 is still the leader. As a matter of Iaci, Astatic expons more mlcro-phones to .Japan then any other country for the same reason US hams use the D-104 on Japanese radios. The crystal element works like a crystal filter,, only passing on to the speech processor and sideband filters those frequencies that allow these circuits to do their job. This provides the DX audio sought by so many hams. The most popular model, theSilverEagle,...

Baileytech Optiphasor

BaileyTech's new Gpti-Phaser is an in-the-shack 4frmeter phasing unit designed to drive a pair oi di poles or inverted vees as a phased array, Variabte-reactance phasing allows the antenna currents in the two wires to be precisely baianced so that a deep null and optimum gain can be achieved. A front-to-back ratio ol 20 dS is typical, and the null is sieerable. For more information contact Bailey-Tech, 304 West S. College Street, Yellow Springs OH 45387. MFJ Enterprises has introduced the...

Coupled

The drain, the grid with the gate, and the cathode with the source. Most resistors and capacitors will remain the same value, with a few minor changes. However, it should be noted that the FE I cannot replace a triode or pentode if the stage is a class-B or -C amplifier. The FET cannot drain current when the gate (grid) is forward-biased, as is normal for half the cycle in class-B or -C amplifiers. Fig. 6. Three FET circuits. 24 73 for Radio Amateurs * November, 1985 It is important to mention...

Crt

We are now seHmg guaranteed working, starlight scope* which allow sight in almost total darkness. Thev are so named because they incorporate a Light amplification tube which uses the available star or moon light to allow yoo to see - without being seen. The scope has a spectral response of 4,500 to 8,000 angstroms, resolution ot 50 lmes mmr viewing area of 25mmr standard 50mm F 1.4 lens, options* telepfioto 135mm F2.8 lens, cross hair reticle and optional carrying case. A greet tool for...

Digital Frequency Counters

Long-range Wireless Telephone for export in stoc Hy-6ain Towers L & . Antennas, and Rotera will be tj shipped direct to E 'you FFtEE of , - J shipping cost. - MIRAGE AMPLIFIERS ASTRON POWER SUPPLIES AEinco Falcon Amps New TEN TEC 2591HT, Corsair II, Argosy I J, Century 22 MAIL ALL ORDERS TO BARRY ELECTRONICS CORP., 512 BROADWAY, NEW YORK CITY, N Y 10012 We Stock AEA, ARRL, Alpha, Ameco. Antenna Specialists, Astatic, Astroa B & K, B & W. Bash, Bencher, Bird, Butternut, CDET CES....

Drop Novice Ticket

Wsth regard to the proposed expansion of Novice privileges, I fail to see the real benefit in offering something extra to someone who has no idea of what ham radio is and. therefore, no interest in the hobby. An increase in our ranks is not going to come from either fewer restrictions or more privileges. Go ahead and offer anything you want to the man on the street, and then ash him If this, would en-lice him to become a ham. You're going to get one of three answers ,hYes, No, or, l'Whatrs ham...

Element Truefalse

Contains one conductor made from multiple materials 2) A composite conduc- _ tor contains strands is the venation of the dielectric constant tem tor transmitting meteorological signals through a cable within an airplane otd C t'S whisker de-leclor was a fine wire electrrxle was used primarily in undersea leiegrapfl applications, noddle phonograph styluses were (nude Irom actual cactus needles. lcssM and cable at tnnuatlan are synonymous.

Engineering Consulting

583CANDLEWOODST ,BREApCA 92621 (714) 671-2009 ICOM FL-44A 2.4kHz, t55KHz. 8-p0i9 . . Reg. 159 FT-44A (Twill Of FL-44A) SALE 79.50 Characteristics equal or exceed those of FL-44A. Replaces inferior mechanical filter. Easy drop-installation - complete instructions. Limited Quantities Get 'em while they last

Etron Rf Notes

RF Notes No. 2 is the second in a series of computer pro- g ra ms des i g n ed to aid i n t he desig n a nd de velopmen t of rf sys* terns and circuitry. The program series starts with basic topics and graduates into more sophisticated subject matter as the series progresses. RF Notes No. i is a program which is a collection of basic RF Engineering notes from our engineering notebooks, reduced to program status. These notes can be quite useful in everyday radio-frequency engineering questions....

Every

C OM M OD OSE RAM NEEDS A COMPANION lh nuthor of Command Fo*i, Uict Wot* Itcdlo end Sat*vay to th* Wculd. QSlTt Publiihing aucuani Tar COUUODO HAAf S COUFANIOM Over a0 scutch Jcr Cramnod omaieur redje iott w jpe ar.d iTartiVi- re A tibliogr phy ctf ever 6C artxiifri an J reviews about js r-3 CommC'dDr rnactuim r. ham shock How lo use your Commociore computer 0 can tha pccket radio revdutkMi Where to tmd specialized pmgpapi tor nx smngsax scar eievjjor sareiliTe tractng sr.d more Hit-*- Id rezL...

Expandable Repeater System

THE Hi Pro E11 IS AN EXPANDABLE REPEATER WITH THE FOLLOWING FEATURES A BASIC REPEATER WHICH WOULD IN CLUDE A COMPLETE RECEIVER, TRANSMITTER. COR. FRONT PANEL CONTROLS AND INDICATORS, LOCAL SPEAKER AND MIC JACK AND CAPABLE OF FUTURE EXPANSION. ALL HOUSED IN AN EXTREMELY RUGGED. ENCLOSED, 19-INCH RACK MOUNTABLE CABINET. * THIS SYSTEM CAN BE EXPANDED AT TIME OF PURCHASE OR CAN BE AN AFrER-PURCHASE ADD ON THE ADD ONS ARE-HIGHER POWER. 110 220 VAC POWER SUPPLY...

Flh

FL-6r 6Hi Q Resonators to-Noise Transistor Amp < 2M or 220 MHi) e FL H 4H Q he Uc a I resonator 4 Lo-Noise Tr. Amp. in 5h.plde< l housing 20-470 MHii Provides tremendous redaction at -out-oi-tian< r signals wf out the usual k a Can oiten be used instead . f targe < . pensive cavity 1 lers Extremely heipfu1 at sites with many nearby transmitter to 1 t r-oul Ihefte Out-Qf-band signals - SCR200A or SCR450A reck mounted AvaJJabio wlll-k or without meters and power supply ID250A CW ID &...

Foxtango

Eon-Tango 5 known for the quality of their crystal fitters, which are available for most of the popular ICOM, Yaesu, Kenwood, a nd oth er H F tran see i vers. For exam pie. receiver selectivity may be improved through the use of & pole i-f filters as drop-in repl acements for t hose in your tran see i ver, I n cl uded i n the complete line of filters offered by Fox-Tango are 2.1-kHz (SSB) bandwidths, and 250-Hz or 500-Hz CWi bandwldths. Complete instructions are included with each filter...

Free Shipment

2620 W La Patma 1714) 761 3033. (213) 660 2040. Bel ween Disneyland Knotrs Berry Farm. 990 Howard Ave , (415) 342 5757, 5 miles south on lOi from San Fran AirpofT 2 11 Telegraph Ave, (415) 451-5757, Htgn ay Downtown Left 7lh ott-ramp 1702 W Cameibacfc Road, (602) 242 3515, East of Highway 17 5375 Kearny Villa Road. (619 560-4900, Highway antiC airemofil vtesa B-wJ

Glen Martin Engineering

Glen Martin Engineering, Inc., will soon be releasing a new line of steel towers that are truly self-supporting in 100-mph winds and nandle antenna loads ranging to 30 square feet at heights to 300 feet. The tower has an equilateral triangular design with face width ranging from 16' to 6 There are tapered as well as straight sections, Material Is hot-dipped galvanized steet and all bolted constuction For more information contact Glen Martin Engineering, Inc., PO Box 253, Boonville MO 65233...

Grade

MINIATURE TOGGLE SWITCHES S,RDT. y S PO T, on-on) rf(onotfon) heads 2-72V9C motor* T POt-n putefs 3 . - 7 or --Tie11 - - 1L d* - , a .-> _ J U51 * L.u' tngpict p ji nued -riJ filftiv 5 i x 3 r O l 7S0E*CH 2FORI1J50 ac irgm rcii . . itiap inounta in . v hole . 1 I OrSTitJflfeng 16 Ljr'UJ '1.1 onlact t1 en A I OMTACTS lamp lDTgtftOQO y.iunv in-14 cm DIP c*> .ir

Great For Oscar Mode L Or

TERMS Pr es ao nor mauae srnpfHng k -vhpre- ndicated and ara subj-eci to irianga *nhou1 notuce At ouJf dracrstjon m* COO s iTiay rec j,re a depose Rfltums dre iLpO,act 10 a restocking vha g te s Vounia.ft Biv P 309 HOURS Monday thru Friday 9 am 3 3q pm Mrunt rnfop Pa 18707 Saturdays 10 a m - 12 p rn 2i HOUR PHONE SERVICE FOR YOUR CONVENIENCE1 MarcL Leavey, MD. WA3AJR 6 Jenny Lane Pikesville MD 21208 OK. Apple owners, this month is your turn We are going to take a look at some of the maieiial...

Grove Enterprises

Wi t h tota I -spect ru m 100-k Hz-1300- M Hz cove rag e and u p to 30dB gain, this newGrove low-noise preamplifiercan makea difference tn longwave, short wave, scanner. TV. ana FM signal strength. Equipped with standard Motorola jacks for most scanner applications. We took our ANT-4B Power Ant and modified it tor wider bandwidth and lower intermodulation so that it can cope with strong and weak signals alike. Use tne iron t-pane I gai n con tro I to boost weak, d ist ant s i g nals or t o a t...

Fxa

Antenna, as 1 am sure you all know, requiring only a feed-line and a place between supports to hold it up in the air No ground radials Of course you do need 246 teet between the supports That 246 feet is a long way in fact, so long that most suburban antenna farms (house lots) cannot hole it. You could ask your neighbor if he would mind it you hooked part of your antenna into one of his trees. You know your neighbor., .the one that owns the new TV you tear up on 20 meters during Monday Night...

Hams In Westchester County Ny

Were scrambled into action when Sal La-gonia N2EQMb Director of Emergency Services for the Westchester Civil Air Patrol, received word that an ELT (Emergency Lo-cater Transmitter) had been activated in his area. An ELT is a device that is turned on automatically when an aircraft crashes the signal from it is picked up by SARSAT (Search And Rescue SATelJite) and relayed to Scott Air Force Base in Illinois. Officials at Scott then notify the appropriate CAP unit. Lagonia immediately dispatched a...

Handhelds

FREE FTS-6 T& ne Fncoiter wttti ebich FT 2 J P H NFW Fi Z7 RH 2m J5 watl 3f> 9 95 V iy stnall mobile r u MfW FT 2700RI-i 25 nVat 499.95 Dijai-br.nd . r nnrr 440 I 2531 m yniffHan< d 259.95 -.2510 Model fl 410 95 3 ( IJte i atior> Tot Oscur 10 CQRSAiR 11 Modul 5 I . CA ,L I FHS0SV M Dioitai & 19 95

Heath

The SW-7800 rece i ve r cove rs 150 k H z th ro ug h 30 M H z continuously in 30 overlapping 1-MH bands. Broadband frontend circuits eliminate the need to tune circuits within a band and wideband front-end stages eliminate the need for the customary rf amplifier. An upconvertmg. double-conversion mixing design provides excellent image rejection. The SW-7800 features af i ve-d iyil LED display w i t h 1 - k Hz accuracy, LSB. USB,CWh and AM (wide and narrow) modes of operation, age time-constant...

Hf Transceiver

Celebrate 25 years of 73 for Radio Amateurs by treating yourself and a fellow ham to an unbeatable subscription offer Here's how it works When you get a friend to enter a paid subscription to 73 for the low one year rate of 19,97, you can renew your own subscnption for an unbelievably low 12. 50 savings off the regular renewal rate You don't need special salesmanship abilities, Simply show your friend 73's * high-quality construction projects and weekend gadget ideas. * articles about satellite...

High Power Surveillance Ir Scope

Free 72 pag catalogue available or send S1.00 for 1st Phone (6171 595-2275 to place your order by phone. class service to P. O, Bo* 62 E. Lynn, M3h 01904. MC, VISA, or American Express charge cards accepted TERMS salislatliftn guaranteed examine Ittr 10clays if noi prras.f n return in original lorm lor refund * add 8 for shipping and Insurant lu 3 piaifirmim ol Sin OD * overseas add 15 for surface mail COD add S 50 (COO in USA only ordflrs under S(5 00 adri J1 50 NY resides add 7 sales lax 90...

Hm

KING HUSSEIN JY1 turns 60 this month, and a two-week celebration has been planned by The Royal Jordanian Radio Amateur Society. AW Jordanian hams will sign with special prefix JY50 from November 7 to November 21, 1985. Prince Raad Bin Zeidt Chairman of the Royal Society, said, We decided on a two-week period because propagation has been so bad. With a littie luck. JY50 stations should be able to work into most call areas in the world during the two-week window ' The King, using the call JY50,...

Hobbyists

Here we go with another blockbuster buy on disc drives which should make the competion's head spin We are offering brand new, Mitsubishi no. 4 8 6 3, 1 2 height, 1 megabyte, mini floppy disc drives. These drives a re beautiful. They are fully Shugarl.3 4 pin compatible- All are double side, double density, 8 0 tracks per side units. Each runs on -f5vdi', ,5 A Use wilj and +J2vclc, .7 A, Just the drives to use with your IBM, Sanyo or other * IBM computer. Each order will come with schematics and...

Bzw

C i3M5 i F (STjS-lMft) i- iN iaijre 12i> Olli & 1 H-IP NT PAlW-rpAN -C O ij fi Qll RESISTORS yNLF.Sjt OTnEHWSt Nt TED transmitter hold time of less than 200 rns This type oi cross-check for satellite access is useful but it is not a requirement Etched lines are avoided in the UHF stripline circuitry by using a glue-down stripline technique Strips are cut from double-sided glass PCB of the size normally associated with etched-circuitry dimensions One side is smeared with glue and firmly...

Evk

The new tour-FF T 6-meter converter signal, although an unde-sired one a pirate station Well, it was not bad at all tor a modification planned more than 20 years ago I desoldered the antenna connector, the coaxial output and the supply cable The next step was to remove the four screws securing the PCB b four bronze spacers The automobile antenna connector was very ugly and hence was discarded, I in stalled a UNC jack in the same place arid an RCA jack on the other side to be used as an...

J

Foreign Surface i39 97. One year only. US funds drawn on US bank. Foreign airmail, pteose inquire 35NR6J Canada & Mexico SU.4B, Foreign Surface S22 48 One year only US funds drawn on US bank. Foreign airmaH, inquire 35NR6K i ' Radio PO Box 931 * Farmingdale. NY * 11737 be high. It had to be accessible by car And it had to be a short distance from my home location in northern New Jersey. One particular location was intriguing and kept coming to my attention n the lower...

Wgj

Mav be reversed by pressing either the UP or DOWN buttons on the microphone. Unit switches to memory 1 for 1 second every 10 seconds, to monitor the activity on the priority channel. Common channel scan. Memories 8 and 9 are alternately scanned every 5 seconds- Either channel may be recalled instantly. High performance receiver transmitter, GaAs FET RF amplifiers on both 2 m and 70 cmt high performance monolithic crystal filters in the 1st IF section provide high receive sensitivity and...

Ic Hf Transceiver

f there's a rig on the market which proves that ''good things come in small packages, it's the ICOM IC-735, the successor to the IC-730, At 9 x 9 x 4' and 15 pounds, this 100-Watt HF transceiver is loaded with Just about any feature an operator could want. As you would expect, CW and SSB are standard, but so are AM and FM, and it Is a general-coverage receiver as well. Among its other features are dual vfos, 12 memories, passband tuning, notch filtering, a built-in 10-d8 preamplifier, and a...

Icom

JCGM America, inc., 23e0- 16th Ave NE. Believue, WA 90004 333T Towerwood Drive, Suite 307, OstiasP TX 75234 AJ itsted FpedfiUEiom ana tubjeii to dr nge notice Of abUgwon Afr iCOM Mdfoi t- iflesnUy FCC regniaflons limiting sp l i emuiKins 7S13S5 Peter H. Putman K12B 84 Qurnham Road Morris Plains Nj 07950 Just Leave Me Here To Die In June, 7 985, two VHF contesters trudged 4200 feet to the top of Slide Mountain. Fifty-pound packs, wet weather and pernicious porcupines were simply a part of the...

In Performance

Superb audio quality * Virtually no phase noise * 16-pole crystal filter Variable bandwidth PBT Continuous tuning audio filter plus notch filter * Dual noise blanker * Built-in memory keyer * Low noise RF preamp Dual speed QSK * Five function meter * Fully AMTOR compatible * No power fold-back'1 into high SWR All solid-state broad band design Built-in speech processor * American made full one year warranty

Info

Note KY0S was second-place multi-op but we do not nave his station description, On behalf of our 40-Meter Contest chairman, Dennis Younher NE6I. t want to thank all those who participated in this year's event, Many of you didn't lurn In an entry and that's unfortunate. If you had, perhaps you could have earned a contest award. Please, next year, just take a few moments, pul together your entry, and send it in. You'll be glad you did. Speaking of next year, the 1906 40-Meter World Championship...

Innovators In Digital Communication

Morse code and all speeds shifts of radioteletype. It Comes with a cable to connect to your radio's speaker earphone jack, demo cassette, and an excellent manual that contains a wealth of information on how to get the most out of short-wave digital DXing, even if you re brand new at it. For about the price of another Pac-Zappcr game, you can tie your Commodore 64, 128 or VIC-20 into the exciting world of digital communications with the Microlog SWL. 64, Postpaid, U.S. MICRO LOG CORPORATION,...

International Radio

International Radio offers fl-pole crystal filters for ICOM 730, 735h 740, 745, 751, R70r R71, and R7000 Drop-in 1-kHz SSB, 9.0115-MHz center frequency (CF)t replaces FL-30 S49.00 Drop-in 2,4-kHz SSBr 455.00 CF, replaces FL-44 exactly 380.00 Wire-In 2.1- kHz SSB, 455.00 CF, replaces FL-44-S99.00 Drop-in 400-Hz CW. 9.0106 CF, replaces FL-32-S49.00 Matched set SSB 2.1 kHz 139.00 Matched set CW 400 Hz S139.00 For more information, contact International Radio, Inc 1532 SE Village Green Dr., Suite...

Introductory Price

- DC shippng a td hiiod mg i-.- ta*, T - msr your OSL rra,i ri m an envelope to 73. SO Pir* Stree1. etertxifOijgh Nu & j4 kj Atln OSLot r fl Month. Winners receive a one-vea suD5Cription tOr extension to 73 En r not in errveiooes cannot be accepted here is the next generation Repeater

Kc

The finest CW keyer at any price, the famous Kansas City Kcycr Ixiasis 1500 characters of memory, 14 buffers arid full prog ram inability. Thv Conttslcrs Choke This 650i microprocessor design lias 32 K of cprom and L6-K of ram Using simple user friend-Vf programming, the owner can automate most contest operations, and much more. Complete KC-1 systems begin at only 219.95 The Ground Plane One is a ten inch diameter, 4 point, cast a I nma I ny. bass u seel to attach the radial s of any vertical...

Kecv Ktup Djhj Ikdj

W VE Single Op W VE Multi-Op DX Single Op DX Multi-Op Mum-band contests are won or lost on 40 meters.Top contested openly admit that a respectabte 40-meter operation will spell the difference beiween first, second, and tnird place. Is it any wonder that the 40-nneter single-band event has become one of the most popular In the single-operator class, only 4 contacts separated KE5CV and K4XS at the finish. Multipliers decided the overall winner KE5CV had 56 state& fprovinces and 47 DX countries...

KENWOOD

High low power switch (1 Watt high, 150 mW low TH-21A and TH-21 AT have expanded frequency coverage for most MARS and CAP frequencies (141.000-150.& 95 MHz) TH -31 AfTH-31 AT 220.000-224.93S MHz in 5-kHz steps TH *41AVTH-41 AT 440,000-449.995 MHz in 5-kHz steps Quick change, locking battery case Comes complete with rubber Hex antenna. 180-mAh battery, wall charger and wrist strap l50-kHz-30-MHz genera I-coverage receiver LSB, USB, AM. CW, FM optional) Programmable, multifunction scanning 3...

Kw Coax Switches

Instantly select any antenna or rig by turning a knob. Organizes coax caules and eliminates plugging and unplugging. Unused terminals are grounded to protect HIH HH your equipment for stray RF, static and lightning. Z KW PEP. 1 KW CW. For 50to 75ohm. Negligible loss. SWR, and crosstaik gives high performance. SO-239s> Convenient Desk or wa-l mounting. MFJ-1702, 19.95. 2 position*. Cast aluminum avity construction gives excellent performance up to 500 MHz with better than 60 dB isolation at...

Lendar

Way QSO- Muliipliers are each ARRL sec Indies section, while KHG jncf otner US don plus VE8 VY1 f74 maximum) KP4. possessions In the Pacilic count as the KV4 KP2, and KG4stations are in the Wes Pacific section Final score* 5 QSO points ANTENNAS USED ) IN THE 40-METER CONTEST K3TUP. 40-meter mult I-op champion fot the third consecutive yefer. 40-meter DX jingle-op champion DJ3HJ. KE5CV, K3TUP, I4KDJT AND DJ3HJ 1985 WORLD 4CMWETER SSB CHAMPS This has been an unbelievable year on 40 meters. The...

M Handheld Converter

Turn your synttieslzftti scanning 39.95 2 mater handheld into a hot Police 1 MFJ 144*148 MHz handneids receive Police Fire on 154158 MHz witfi direct frequency readout Hear NOAA maritime coastal pius more on 160-184 MH Converter mounts beiween handhetd and rubber ducky Feedthru allows simultaneous scanning of both 2 meters and Police Fire bands. No missed calls Crystal controlled. Bypass Off switch allows transmitting (up to 5 watts). Use AAA battery 2Vix1V x1 Va in BMC connectors

M

COMPUTER TERMINAL BUILDING BLOCK 50.00 This is a great beginning fur a computer terminal. It is a brand new, Panasonic* 9 TTL input monitor complete with its own self-contained, switching power supply, and a removeable (four screws) triple output power supply. The whole assembly runs on 11 5 '230 V, 5 0 6Q Hz. Now for some specifics 9 green phosphor, TTL input monitor. iltachetl regulated 12VDC, I A power supply used exclusively to run the monitor and an attached triple output switching power...

Maggiore

HPC201B Microcomputer Controller with Autopatch The HPC201B is a computerized repeater conirol system with all these features User programmable key code and autopatch codes User-controlled toll restnet Up to 7 individually controlled SUfrmA outputs Vahd tone acknowledgement with LED Smart identifier, user-programmable Input and output amplifiers Multi-digit programmable command end autopatch codes Reverse autopatch antl repeater leiephone control Burglar-alarm input Tone muting Up to 60...

Meter

Semblance of reason prevailed and a more scientific approach was decided upon to try to find the solution to the problem. 1 he LC circuit I was trying to align was in the synthesizer section of the receiver with a crystal-derived known frequency across it and within the range of one of my other receivers. I loosely coupled the antenna lead of the receiver to the high side of the LC circuit, tuned the receiver to the correct frequency, and found I could easily peak the circuit using the S-meter...

Mfj

Fully automatic Digital SWR Wattmeter reads SWR 1 1 to 1 9.9 directly and instantaneously no SWR knob to set. Huge 0.6 inch bright orange digits mane across-the-room reading easy. 12 segment LED bar graph wattmeter gives instantaneous PEP readings up to 200 wart RF output. Good, bad., mismatch tricolor LEDs indicate SWR conditions. Small size (5ttx 4M x 1 in.) and easy-t< Keao digital display ma*es It Ideai for mobile use. For 50 ohm systems. 1. -30 MHz 12 VDC or HO VAC with MFJ-1312, S9.95

Mfj Hour Lcd Clocks

These MFJ 24 hour clocks make your DXing, contesting, logging and SKEQing easier, more precise. Raid both UTC and local time at a glance with the MFJ-106, 19,& 5, dual clock that displays 24 and 12 hour time simultaneously. Or choose the MFJ-107, 9,& 5 single clock for 24 hour UTC time. Both are mounted In a Crushed aluminum frame, feature huge easy-to-see 5 6 Inch LCD numerals and a sloped face that makes reading across-the-shack easy and pleasant, They are battery operated so you don't...

Mfjd

_ everthing from 1.8 to 30 MHz, Designed to match the new smeller rigs, the MFJ-989 is the best roller inductor tuner produced by MFJ, Our roller inductor tuner feaiures a 3-digit turn counter plus a spinner knob for precise inductance control for maximum SWR reduction. Just take a look at all these other great features Built-in 300 watt, 50 ohm dummy load, built-in 4 1 balun and a built-in lighted meter that reads SWR and forward and reflected power in 2 ranges (200and 2000 watts). Accuracy+10...

Mfjzw

Installed in Rcvrt or FL-4H Preselector Unit These are professional Commercial Grade Unifs Des gned for Extreme Environments (-30 to 60 C.) AK Equipment Assembled & Tested. COMPLETE SHIELDED RCVR. ASSY, VHF UHF Receiver Boards SCR200AVHF SCR450AUHF *a POktf From End Flu 'ftnge educes overbad. Inrermod Set < 6dB i 6 5 KHz iXtoB ir i Po> eCi> ita 4 Pole Ceramic FJtf S Meter. Discriminator Oev.at on Mtr Outputs' *E*C audiO qualrty ast SOut ich1 *0 0W Crystal Svpe-Sftarp tF F r lio ftcvr....

Midland Desktop Repeater

Midland LMR has introduced a four-channel desktop repeater for commercial two-way FM radio systems. The VHF highband model covers 150-174 MHz with either 2-5 or 5-36 Watts of output, and the UHF model covers 450-470 MHz with ol- ther 2-5 or 5-25 Watts of output. Both models will accept an optional CTCSS module. The standard units requ r separate transmitting and receiving antennas, but an optional duplexer permits the use of a single antenna. Both models come with one set of crystals. For...

Minipush Button

And R7, Then I installed the PCB in the box and wired the BNC connector, the output connector, and the +12A dc feedthrough. A final retuning w ith the t-ndosurf on and a test showed the oscillator was 2 kHz too low in frequency- The cure was to install a smal coil with a ferrite cor in series with the crystal A small adjustment of the core moved the frequency 2 kHz up. The modified circuit is shown in Fig 7 Please note that the inductance in series with the crystal is not shown in the schemafir...

Model Pk

Signals jvBiiaole lor leielype Motor Control 1 Slendflrd mentor)14K, eipanda& le to UK. * l(5K RAM a si libit on sptciai order ' Can ha custarciaaiJ For LlN'p. iquGicis Input loi ihaTinii of voice ch mniK * Call sign, sSlt * tfADC a programmed In flOM Gimensrans. 2,3 X 11 X 5 (Inches i Power Retjukeminl 12 voits DC a1 D0 ma. Includes PK1 installed in cabinet w cable set & pwr. supply PK1- FCC CERTIFIED wired and tested in cabinet 209*5 PK1S- Subassembly board wired and tested...

Model

Lohn Reed W6lO 770 La Buena Tierra Santa Barbara CA 93111 It's a snap all you need is this versatile satellite converter The transceive mode of operation is a worthwhile convenience you're on that DX station without causing those QRM-typefre-quency-alignrnent tuning whistles. This 435-MHz transmit converter has an output of over 2 Watts, and the 146-MHz receive converter features a low-noise GaAsFET preamplifier. Most of the parts can be purchased from Radio Shack, and the others are readily...

Mqmi Tor Output

L DUUBl L SiOED GLASS PCB, 3 0 in.* in A< R-GAP FROM THE PRIMARY MOUNTING BOARD (2 1 4 m M lM in. PCG1 MAINTAINED AT 1 4 in. WITH A TIN jS BRACKET AT THE EN Cl, L, L SPACING l fl in. AJR-GAi> . DIODE CONnFCTiCin CENTER TAP GF L of the capacitors. The shields are made from Reynolds perforated aluminum (1 8-inch holes spaced 1 4 inch). Forming shields with this material is easy. Fig, 70, UHF dummy load power meter. The MRF629 amplifiers are identical. Each is mounted on a 2-1 2 x 3separate...

Mrf N

. 10.00 . - 27.50 . 110.00 . .12.50 . . 82.50 . . 26.50 .175.00 . 195.00 . 495.00 . . 12.50 SERVING THE INDUSTRY SINCE 19 2 Phone (718) 646-6300 Caff CECO For Your CCTV Security And Color Production Reouirements So many people have discovered our products and publications that we simple can t hide our success any longer. In fact, our commitment to quality merchandise and personalized service has made us one of the worst-kept secrets in communications monitoring. Explains Ingrid i guess we're...

New Fea Tures

MFJ1 fastest jelling tuner packs in plenty of new features Kaw Styling Brushed aluminum front All metal cabinet * New SWA Wattmeter More accurate Switch selectable 300 30 watt ranges Reao forward reflected power * New Antenna Switch Front panel mounted Select 2 ccax lines, direct or tnrough turer random re balanced line cr tuner bypass for dummy load New airwountf inductor larger more efficient7 2 position air-wound inductor g'ves lower tosses arc more .vans out Run up to 300 watts power ouiou*...

Noncontact Voltage Detector

A hand-held instrumeni that emits an audible ticking sound in tfifc presence of ac voltage is available form Louis and Beech. The Tic-Tracer can be used to safely check for live wires without touching them, to find hidden wiring, and to check luses and oreakers, The Tic-Tracer can also detect which side of a two-wire cord is hot. The Tic-Tracer is housed in an Q-W2* * 2-3 4' x 1 * case and operates on two AA oatteries. For complete information, contact Lou s and Beech, PO Box t958Q. Detroit Mi...

Nov

The Alford Memoria Radio Club of Stone Mountam GA will sponsor Ham fta-die and Computer Expo B5 (formerly the Stone Mountain Hamfest) on Saturday and Sunday, November 2-3, 19 5. from 9 00 am (o 5 00 pm on Saturday, and 9 00 am to 4 00 pm on Sunday. Admission is S5.00 at the gate, 4.00 in advance, FCC license exams witt be given on both days. Talk-in on 146.16 .76 and 444.25, For further information or reservations, contact the Alford Memorial Radio Club, PO Box 1282. Stone Mountain GA 30006,...

Nul

A sample log sneer both sines) tor 73 's World SSB tihampfQnshtps. See be tow for rule s and forms address. log must contain in Its heading the category of the station A, B. or G), name, call-sign, address, and band(s) used. Also show the total number of contacts, QSO points, multipliers, and total score. Each log must be accompanied by the following declaration I hereby state thai my station was operated in accordance with the rules of the contest as wen as all regulations established for...

Output

Amplifier filter layout. 38 73 for Radio Amateurs * November, 1985 The dummy load is twenty 1 2-Watt, 1k resistors connected in parallel. They are clustered around an RG-58 U cable, soldered to two 1-1 4-diameter plates. The plates are parallel and spaced the length of the resistor The complete assembly is immersed in a pint of cooking oiL The dummy load can absorb 100 Watts for short periods. The transmit converter LO starts with a 45-MHz vxo (variable crystal oscillator). The normal...

Packet Radio

Hand SON a m K2TKN KA20EQ 201-658-3087 BOX 332 PLUCKEMIN N.J. 07978 I A beautiful piece of furniture - your XYL will love it - I Designed with angled rear sheff for your S viewing comfort and ease of operation, j I FINISHES Walnut or Teak Stain. Floor Space 39 Wide hy 30' Deep ladroequipmeni I Additional Information n Request m f not included Checks, Money Orders, BankAmencard l * . and Master Charge Accepted. Also Available F.O.B. Culver Cny. (In Caiil. Add 6 Sales Tax. jFloor Spar Wide by 30'...

Pc Electronics

The keyboard buffer Nothing, It was only put in as an extra to ensure that the cursor reached the direct GOTO command A prompt on the screen now tells you to GOTO 63790 if you wish to destroy the Convert part of the program. G Sing to 63790 causes the program to list all the line numbers on the screen. It is now a simple matter to press the Return key on each of the numbers and remove the lines from memory. Some of the commands in Commodore's Basic are not retransmitted by Hamtext. This...

Pe

5 . tA Ofi S.25 r.A OH A OH EA OH EA Ofl tA H EA +'. EA DP 10 10 10 10 tp ta FOR i TDR il FOR TMS8 01NLMfCR -P TIM& OUjU MICRO-1' CLOtiK jt-M ANO DR1VEF TMS SStf& Nt, Mu KQ-P COi-Qf fiAFHI S A*JD C-SSPI.AV KEV BOARD f99rt> 4iKEY& MEASURE 4 1U HTfcK FOfl W tt FOfi 160.00 FOR 1*5.00 FOU 3h0. PO 50 00 ts .m & & S1 96 .H APPLE a d APPL H* COMPUTER MAiNFfiAMES4'uilvi hiH *r t1 Pijwm swv lv. CMfl iytKJ-n mpj 'IMtjr avpiInJtilHh CU W Wit* Ural O*cntHKl fuNy i n m DLvd fi litr t O plu*...

Phone Center

Terms JV pe onpl . te ks accepted Pncvs du ,1 f j'.i We shipping to cti nge whoiiF nvtfce or obligation Producti 3rv mil 50*0 for svaiuaiion AvMiinsfirt returns spO ,rset to a 1h restock sod fondling tee ou c.rvoit i iii be issued to u.c,f o.i your n xl rctws . Etfj supports lits ntdntjfaclurcrs' warranties. To get a i3py oi a warrant prior to pwenase, call. stOfnet s fyice W3-b 3-and it fti t h furnished no cost. lames L Taylor W20ZH 1257 Wild Flower Drive Webster NY 14530 Are you tired of...

Price

GFuHut. rtftflDSV BUIImiejiiimi (KJH, Hfli E Uiklfnl HOB flTHDH PftDUhH Qlf UK. f.& NA r LUtgCi AL H5 HJI Whn Mur W -.'ll-P' < 1 f inaliu'i ii GFuHut. rtftflDSV BUIImiejiiimi (KJH, Hfli E Uiklfnl HOB flTHDH PftDUhH Qlf UK. f.& NA r LUtgCi AL H5 HJI Whn Mur W -.'ll-P' < 1 f inaliu'i ii

Products In

Tonna f si ft antennas are backf we are the exclusive u.s. distributor introductory special 1296 OUAD a RAV CQMP ET W TH 4-23 - YAGlS H' FRAME POWER O'tflDEn PHASING L'NES CONNECTORS TERRESTRIAL APPLICATIONS PRICE other g eat. high performance antennas by tonna (call for spec sheetuj (ATV MODELS IN STOCK I 70cm OSC A H TWIST 66

Psb Mhz Prescaler

Extends the range of your present counter to 600 MHz 2 stage preamp divide by 10 cir-cuilry * sensinvity. 2GmV 150 MH2 BNfC connedors * drives any cduntef E Q95 Chides tl AC Pdapter Professional quality a hobtyist price. Features include 26 different ranges and 5 iunc-Hons * VA digit. & inch display * auto malic tiecimal placement * aytomfd ir cilarity S4 OSS wired includes I I V AC actapter 39.95 MP-1 probe set 4.95 1 ht is handy higri r soiunon audiC' resolution maasiif rieats multiple UP...

Ra Hf Receiver

Famous military receiver covers 0,5-32 I J PWH M Mhz AM-CW in 31 liWMWii mechanical digi tuning. 455 Khz IF has four Collins mechanical filters for selectable 2-4,4-16 Khz bandwidth. 100 Khz calibrator BFO No covers. 115 230 VAC 60 Hz 10Vzx 19x 16 , 95 lbs. sh. (UPS in 2 pkgs). Used-reparable 215 Checked S335 Manual, partial repro 15 PARTS FOR R-390A, used-checked PTQ VFO assembly 40 If collins Mfg. 60 Mechanical filters 2 or 4 KHZ 35 Set of four Power supply less 26Z5 tubes 30 Most other parts...

Radio

Interested in more work Major Manufacturer will establish service centers nationwide, Well-equipped shop with qualified 2-way Tech, and accessibility to L P.S> an-required. II you would like to increase your shop s income* please list your qualifications and reply 80 Pine Street Peterborough, NH 03458 BEST OVERALL VALUE ON THE INTERFACE MARKET FOR RTTY AM-TDR CW Independent 4-Pole Chebyshev Filtering for Mark ami Space Tbnes Automatic Threshold Correction. Variable-Shift Tuning the Space...

Radio Amateur

Uj5 currency h l'y O.j-stle LIS. add E50 per item t r postage int hyrv.ilintf Please flfcw 4- 6 weeks fa defray 925 Sherwood Dr.t Box 247 Lake Bluff, I L 60044, USA Jesse Jones Box Corp. PO Box 5120 Dept. 73-M Philadelphia, PA 19141 THE WONDERFUL WORLD OF WIRE (AND CABLE) Ym sallied Not an unusual situalion lor Mr Fun I adrrnt But I ust can't under si and why out British cousins refer to the locus of oof hobby as a Ageless Ther5 must be Ajres and cables n my shack than at me local phone...

Ramsey Dq Vom Multitester

Compact and reliable, designed (o servicea widevanety ot equipment Natures include rrin rfir back stsm * dOL-b e- eweied precision snowing coil * double overload prelection an deal low cost unit lor tfn't beginner bt as a spaj n hack -up unit. Check transistors, diodes LlZD wtirj fhii professional quality melt3r Olher fealures include. iJecabel scale 20K volt retening system 3' mi'rrored scale polarity switch * 20 mea& urlr ranqf.-s surety probes * high 11M jjd picric tdse Reiiable, acceiate...

Remote Active Antenna

The authoritative World Radio TV Handbook rates the MFJ-1024 as a first-race easy to-oper-ate active antenna Quiet, with excellent dynamic range and good gain Very low noise factor Broad frequency coverage 1T. the MFJ-1024 is an excellent choice in an active antenna11. 54 Inch remote active antenna mounts outdoor from electrical noise for maximum signal and noise pickup. Often outperforms long-hundreds of feet long. Mount anywtiere-atop buildings, balconies, apartments, ships, any radio to...

Rf Paris

1320-16 Grand Ave,, San Marcos California 92069 (619) 744-0726 ALL BAND TRAP SLOPERANTENNAS FULL COVEhA Kl ALL BANDSJ AUTOMATIC ELECTION wvlthPROVEN WtBtnarproof letled Tl-ipi - Qt Copper (J Wir el GROUND MOUNT ELOPERS - No Ra ii needed Ground IV ar homt el- fm Ctll Ccnjiict Top to Trcci, Qulldlnflf, Pold.itt ANY infii (foni St'fllQhtup tQ 60 deflftfli tot AC HeM ELOPER PX Antenna tt bcfi it iii wht't -u netC to 2 000 Watt EP In& ut, 4 1 Ptrrrnndll Si pOFtibl Ult IrsTji't m iO t tnutti SMALL...

S

Price lathed 50 ta 169.961 Get a full feawe Super Keyboard that sends CW RTTY ASCII tor the price of a good memory keyer. You get the convenience of a dedicated keyboard no program to load no interface to connect lust tun it on and it's ready to use This 5 mode Super Keyboard lets you senc C W, Baudot, ASCII, use it as a memory keyer and for Morse Code practice. You get text buffer, programmable and automauc message memories, error deletion, buffer preloaa, buffer hold. A 256 character keyboard...

Save Your

YouII find all your favorite issues of 73 for Radio Amateurs in minutes- -and in great condition with smart-looking binders or file cases from Jesse Jones. Sturdy, protective file oases make for easy access to each issue, while rugged binders allow magazines to lay flat for easy reference. Both hold 12 issues, are custom-designed in red with gold spine lettering, and are unconditionally guaranteed. File Cases 6.95 ea. 3,' 20 6 36. J HHHH Binders 8.50 ea. 3 S24.75 6 4S. 19 llfl YES Ptease send...

Scoring

Multipliers are each US stale and Canadian call area, plus each DXCC country worked on each band. Final score is the sum of the QSO points limes the lotai multipliers from all bands. Certificates will be issued to the top five stations worldwide in each entry category. Additional awards will be issued where significant achievement oi competition is evidenced. In addition, each station that successfully completes at least one EWE contact during the contest period...

Segregate Novices

The integrated circuri has ensured that. As a result, probably 80 of active amateurs are aimpfy operators. Even the license tests are really a matter of memory, guesswork, and luck. Little, if anything, is determined by them about one's ability to demonstrate a practical application of electronic knowledge. Maybe we need a part of the test to actually require such a demonstration. This could be in the form of troubleshooting, construction, or perhaps simple measurements and deductions obtained...

Smart Patch

CES- irmplex Autopalch 5 1G-SA Will Paich FM T' nsceivftr To Your Telephone < 3rear For Telephone GaJJs From Mofti e To Base Simple To Use 319. & 5 VoCom Mirage Daiwa Large inventory of Tokyo Hy-Power Saxton Wire & Cable -__W 5 8xht Gain AMERITRON AMPLIFIER AUTHORIZED DEALER I Antennas IN STOCK Yaesu FTR-241 , Wilson mam m lC0M ,C*RP 1210 (1-2 GHz) AEA CP-1, PKT-1, Dft.DX F 1 CP-1 , PK 64t Dr. QSO, j Morse University ALPHA AMPLIFIERS MJCROLOG-AIR lT Air Disk, SWL, Morse Coach UTU,...

Speccom

Amateur Radio Specialized Communication Journal P.O. Box H Lowden, Iowa 52255 (319) 944-7669 Membership Services) . ,., , . ,, . _ Canadian Distributor 2852 Walnut Ave., Unit E Eostcom industries, Ltd. Tustin, CA 92680 4511 Chess wood Dr. CORPORATION (714) 832-7770 l> Ownsview, Ontgrio, Conada M3J 2V6

Stations

Better communications start with your subscription Start my no-risk subscription today and send me 12 issues of 73 or 19.97. I'll save 33 off the newsstand price CHECK MO Bill Me (plc4K makt cheek r vaHf r, Canada 22 I year only* US fun J* du n on US hank- Fcimpn surtax JJ9.97, J vnar dhIt. US tund drawn on US hink. FewiirmuL fttfl inquire. Plea ailow vi -Jt* int delivtrv.

T

Information conlact TB Systems, PO Bot Los An W20U HP and VHF High-Power Maxi-Baluns The W2DU Maxt-Baluns (maximum power) conl.iin no iftrrile cores or material In the high-power porllon ot Ihc circuit no core 10 saiurate at high antenna swr levels and Ihsrefore no harmonic generation. The iniernal leedllmj passes through a series ot fernte beads which prevent current flow on the outer braid, This prevents accidental iadiaiion 01 rf interference and reE> uit& in balanced cur rents on the...

Tc

FULL COLOR, SOUND, & LIVE ACTION just like broadcast TV, Ger on mis anting sniat ur video mode at our affordable ready to 90 prioii what js reouift d for a compl t ophttatlng system the tcvqai diiwncpf)verier outpuls to any TV on ch 3 for receiving Connect a good 70 cm antenna and low loss coax. P'ug rn any composite video source you war 1o transmit Camera, VCR, computer, etc. PJu in any low Z dynamtc rruc or uv oJot catnera mlc (or Standard 4 5 mH tv sound Connect to 13 3 vac for base...

Telex Aea Intl

Thousands of Ham Radio'* operators across the country are enjoying Specialized Commu nications* modes. Whether it's FSTV, SSTV, FAX, OSCAR, EME, RTTYt PACKET or COMPUTERS, today's Radio Amateur Is a highly skilled Communications Specialist Providing full, in-depth coverage of these modes is our business and we've been doing it now for over 19 years And now we're expanding iflwa Residents Musi Add 4 Saie s Ts*. Now pubiished monthly'1 10 times per year, SPEC-COMtm readers are kept up-to-date in...

Telex Ramsey Ci

Unsurpassed quality at an unbeatable price, iho Ramsey oscillo- mVj QJW scope compares ta others costing hundreds more. Feaiuras include1 JP iiflHjJ' ii component tcsimg circuti far rector, capacitor. digital circuii una clitJidt testfog. > TV Video synu-liMfir t bandwidlh 3 high sens-- Mgh quaflly hook on llvity imernal graticule * ftoitl panel trace rotaior Z axis * nigh probes Intruded a sensHiYity x-y mode * regulated power supply buiFt-in calibrator * rock solid triggering - USA Add...

The Answers

1 False It contains multiple conductors- 2 True In parallel of COun .1 3 Faise Not unless they wanted their projects to explode m their faces 4 True A horizontal half-wave wee antenna , to he more precise. 5 True Important to remember on VHF and up 6 Faise From a captive balloon tq tne eartn 7 True Pressed agamst a crysta True H < mas a tmee-e< ement sys lem in which dilS and dahS Of equal length were repre sented D positive and ne a tree pufses. 9 True A far cry Irom the laser pickup in...

Tm

Highly sophisticated toll restrict Automatic tape-recording facility 3-digit access held programmable Advanced digital and linear circuitry HXF ELECTRONICS Box 73 Statiuii A Islington, Ontario Canada. M9A 4X1 Tel. (416) 62 1-3733 For further info on this and our other decoding products, calt or write

Triokenwood Communications

California 9022G Have you been trawling the bounding main for a new product We have just netted it the TP-38 microprocessor controlled community repeater panel which provides the complete interface between the repeater receiver and transmitter. Scuttle individual tone cards, all 38 El A standard CTCSS tones arc included as well as time and hit accumulators, programmable timers, tone translation, and AC power supply at one low price of 595.00. The TP-38 is packed...

Ttc Touch Tone Controller

Supe ' versatile design Uses high quality Xrasj Controlled Deco '-f IC. JTiigft immunity to 3 ON OFF Functions per Main Card. Easiiy pand Dic to any no. of functions .'Expansion Cards F eid Proflrdinmatle > a piug- n Cc.-de-O CaMs Latched or pulsed outputs many unique 3-dlglt codes avaitattle Not basjcalfy ijigit as wttt competitive owls. Transistor Switch outpuiE nan directly mgfl solid S(a t- circuitry oi relays, etc for ar> y type 0 control funciion. Inlort jucatjlc to...

Twa

The first is still the best The original FM Dual Bander ' TW-4000A delivers 25 watts output on both VHF and UHF in a single compact package. 2m and 70 cm FM in a compact package. Covers the 2 m band (142,000-148.995 MHz), including certain MARS and CAP frequencies, plus the 70 cm FM band (440.000-449.995 MHz), ail in a single compact package. Only 6-3 8 (161 )W x 2-3 8 (60)H x 8-9 16 (217)D inches (mm), and 4,4 lbs. (2.0 kg.). Single-function keys allow easy operation. Large, easy-to-read LCD...

Using The Ao Apogee Predictions

Apo(je* predictions for ihe month of November are provided for three secilong of ihe United St.iir- . Wii ihinflton DC I 39N 77W. Kansas at 39N 95W. and California at 3SN 122W Tifnwi are in UTC and apogee In rhis r se is mean anomaly 12B rounded to the nearest whole hour the chjri as 0 guide In aiming your antenna, then tine-tune the azimulh and elevation values to peak the satellite 3 beacon signal. If you require more accurate ortiitai predictions, contact AMSAT at PO Box 27, Washington DC...