N

Amateur bands 440 MHz to 1,3 GHz 7nBR,S 6 All modes except MCW and AFSK, to a maximum bandwidth of 6 kHz. 10 All modes except MOW and AFSK to a maximum bandwidth of 10 kHz, 30 All modes to a maximum bandwidth of 30 kHz. 7 All modes to a maximum bandwidth of 7 MHz. B Beacons Transmitting on Call-fjoofr-listed beacon frequencies should be avoided. R Repeaters Transmitting on Call-Ooofr-llsted repeater frequencies should be avoided for direct contacts in their service areas, S Satellites in...

Ferrite Beads

Willi ifilo in< J Siifrfii ivsi oc Complpti triply rp ulatfid powi r supply provjdesryflriiibli 6 to 1 6 volis fll 200 nid and -5 ar l Amp E ceile'v load regulation good It rin and s-mii 11 size Less 1ransforner5 requ- s6 3V a 1 A and 24 VCl RF actuated relay senses RF (1W) and closes DPDT relay For RF sensed T-R reiay TR-1 Kit 6,95 5 viJi mpiji fjrCK -3 vdc & .50rnhi 9 vcrc F-ra luces 1 i Vde i ' 1 fi -TIJ 1.25

Readouts

10 52.00 10 S2.00 10 2 00 4 2.00 4 2 00 3 2,00 iiprayiJEi 3-JO f f S1 able PO I ypr pyl i . SO *M. FiK Turn 1 nrr Po4 tl.W 1K Turn Trinn Poi t .50 Bf-FETLF 1 741 - Direct pm for pin 74 1 IfiDJ 1 z 5Ljpsr Ioy, 50 pa mou fur vV V 50 for only 9,00 iP Small 1 drameter V rhicJt crystal m.ke cartridge .75

T

15 F0RL*IT0LEN(fl*iAJ ) IS* HID*iM* 1 A) , Lf I) sM-T IF5*--THENM DL 20 POKEY,PiPOKEWfK FORD ITQHi NEXTiPQKEV, It PCIJCEW, Ui FQRD-I TOESi NEXT i NEXT 30 FORD* TOBFt G TK*i PftlNTK* 32 IFK*CHR* ifl> ANDS*< > H ,HTHENB*H_EFT* < B P LEN B > -I > I G0T03C 34 IFKi-CHR* QQJ THENB* HI PRINT iSO111GGT030 33 IFB*< > THEN30 40 GETK*11FK 11THEN40 45 B*-K*iPRlNTB* 50 60 IF A S P THE NF OR D IT G H 81NE X Ti SO TO 36 70 A-A-FFiIFA< 1TH NA-I 80 SOTO15 100 IFPEEK iOZTHENL L+I IFL<...

Info

Will Include transmitter hunts, mobile judging, and a CW contest. Ejtcellenl camping facilities will be available For more tnfomiatlonr contact William W. Bosch WWEMY or Stanley E. Kittetson WMDAJH Box H. Dickinson ND 58601. The Tusco Amateur Radio Club (WBZX) and Ihe Canton Amateur Radio Club (W8ALJ will present the 10th annual Hall of Fame Hamfest on Sunday, July 15. 1984. at the Nimishillen Grange. 6461 Eastern Street. Louisville OH Admission is S2.50 In advance and 3,00 ai the gate, Tables...

Nicorn Electronics

10010 Canoga Ave, Unit 6-8, Chatsworth, CA 91311 Minimum OrCfi (IS 00 - No Shippin Chjfgn On Prepaid Orderi - C 0 D. Add J1 65 - UPS Glue Add 13 00 - Mil. RciuJenli Add (> i Sal Til. Perianal Ciwcki Held For Clejran . VISA-MC SEND FOR FREE CATALOG, Leon Fletcher N6HYK 274 Webster Drive Ben Lomond CA 95005 These ten tips will better your club. Are you friendly or frigid Recently, a ham I know moved to an area which has two ham clubs. And they're both mighty big bombs ,f he told me. 'JI went by...

Otp

Tired of paying too much for your Ham gear The new generation of Yaesu high-technology equipment is designed with you in mind New advances in computer-aided design and robotics manufacture help you save money while being assured of the best from Yaesu Continuous coverage on rx from 500 kHz to 29 99 MHz in 10 Hz steps with eosv modification for mars tx outside ttie Ham bands warc bands factory installed

Dumb Wayne

Word of a petition I submitted to the FCC having to do with CW was published in abbreviated form in QST. Working on the basis of this biased report and without giving the situation much thought, a few Chicken Littles have been yelling wolf, if I may mix my metaphors. Actually, think that without exception the reaction has been to attack me personally, not my ideas. I'm used to that. fn a classic case of projection. rm classed as dumb by amateurs who haven't been reading 73 and thus don't...

Both

High-going pulse from pin 9 can be used to activate a beeper, if needed. he timeout program can be changed to the legal limit of 180 seconds by taking clock pulses from pin 13 of U2 and sending them to pin 1 of U6. That's all there is to it The addition of a coup e of LEDs to indicate DELAY and COR status puts you in business. Photo A shows a completed board minus LEDs, while Photo B shows one version built on a WES-COMM 56-pin plug-in card which SARA uses on K2RF R. Two built-up boards are now...

Manassas Va

Inc., writ hold the tenth annual Manassas Hamfest on Sunday, J une 3. I984r beginning at 6 00 am, al Prince William County Fairgrounds, VA Route 234 tt mile south of Manassas VA. Admission Is S4r0 per per son children under 12 will be admitted free) and there will be no advance sales. Activities will include 25 acres of taUgai-ing (setups at 7 00 am), indoor commercial exhibits, breakfast and lunch menus, a YL program, and CW proficiency awards. Talk-In on 146.37 97...

Highperformance Receiver Modules

R144 R220 FM RCVRS for2M or 220 MHz, 0 15uV sens. 8pole Ma filler & ceramtc filter In rf( helical resonator front end for exceptional selectivity, more than 100 dB at 12 kHz. best available today. Flutter-proof squelch AFC tracks drifting xmtrs. Xial oven ava l. Kit only 138. R451 FMftCVR Same but for uhf Tunec line front end, 0 3 uV sens. Kit only SI38. B76 FM RCVR for 10Mr 6M 2M, 220r Or commercial bands. As above, but w o AFC or heL res. Kits only SUS. Also avail w 4 pole filter, only 98...

Social Events

Us frogs in this column ere provided free of charge on a space available tasis. The fot-lowing information should be included in every announcement, sponsor, eventH da fa, time, piece, city, state, admission charge tif anyk feature talk rn frequencies, and the name of whom to contact for further information Announcements must be receded by 73 Magaric fly first of the month, two months prior to the month in whtch the event takes piece. Mail to Editorfaf Offices, 73 Magazine, Pine SU Peterborough...

Princeton Il

The Starved Rock Radio Club (W9MKS) wilt present its annual hamlest on June 3. 1984, at the Bureau County Fairgrounds in Princeton IL Registration ts S2-5G irt advance (be I ore May 20) and S3.0Q at ihe gate There will be a nominal lee for recreational vehicles. Features *nll Includn a free swap area, commercial vendor exhibits, an ARRL seminar, and plenty of parking. Good food will be available. Registrants will receive free coffee and doughnuts at B GQ am. Talkin on U7,l2 ,72, 148.07 7, and...

Great Britain

Jett Maynanf Q4EJA 10 Churcfifields Widnes WAB 9RP Cheshire England I wonder at the continuing ingenuity of equipment designers to produce more and more exciting products that do not really off** any significant improvements in performance in relation to their tun damentai job (or principal function) The prime example of this must be In the ongoing development ot radio receivers for the enthusiastic listener (rather than the hi-fi enthusiast or casual observer There do noi seem to have been any...

Ikh

Sam Creason K iW 2940 Arlington Avenue Fuflerton CA 92635 The more Sam builds, the more smart people pay attention One of the handier pieces of test equipment for someone who experiments with solid-state analog and digital equipment is a hand-held DVM. I recently needed such a device to measure dc and rf voltages. Since i had no need for either ac or Ohms scales, t chose to save a few dollars by building my own. A schematic of the result is shown in Fig. 1. The heart of the DVM is an Intersil...

Keys To Your Future

Unlock all the potential of your Commodore 64 and VIC-20* with RUN Explore Experiment > . Enjoy Beginner and expert alike will be taken beyond the manual to the limits of their abilities. Enter your own game programs, Construct a simple hardware add-on, Broaden your scope with unique applications,, + And,, - get a 13th issue FREE Games for fun & strategy. Programming tips help you learn short cuts. Candid reviews heip you make money-saving decisions, Programs to add to your library,...

Usa

Covers TOE -o MHz inl * steps wrth iumr wh& ei dial. * Accuracy pan per 10 million at all frequences * internal FM adjustable iron 0 iq 100 kHi at a 1 fH rate Spuri and nqi& e a least 60 dB below wner RF outpyl stable from 5-500 mV ai 50 ahms * Oper les of 12 Vt c 1 2 Amp * Available for Immediate delivery 5349,95 pJus shipping * Acjc-on Accessories a allable rc ex end freq range, add Infinite resolution. roice and sub-audible iones. AM, precision 120 tiB calibrated attenuaior * Call for...

M

OflDER WFJ-12ZV MFJ-52M FOR VIC-20 Oil FOfl C-& 4 Use your personal computer ana communications receiver to receive commercial, military and amateur RTTY ASCII AMTGR CW traffic. Plug* between receiver and VIC-20t Apple. TR5-800, Atari, TI-99, Commodore 64 and most other personai computers. Requires appropriate software Use MFJ, Kantronics, AEA and Oiher RTTY ASCIE AMTOR CW software. Copies ili shifts and ill speeds* Twin LED indicators makes tuning easy,...

TYPE

1 - RG59 U96 Copper Braid 2 12-Gauge 3 18-Gauge 3 20*Gauge Shielded plus Tinned Copper Drain Wire 3 22-Gauge Shielded plusTinned Copper Drain Wire Designed for easy, one-step installation, providing the required cables for most earth station equipment,., all in a direct burial jacket. Only Nemal offers the quality construction RG59 U copper shieiding made to mil spec JAN C-17,12*gauge conductors, tinned copper drain wires, and a true direct burial jacket. MULTICON DUCTOR LIME PRICTNG AVA...

Amps And Volts Dividers Power Calculations Series And Parallel Filters

Ohio447(Hi -- Special Head Sets (Telex Hygain) Procom 200 impedance, with boom mike Procom 300 dual impedance boom mike . - 69,95 TeJex Hygain Explorer antenna 279,95 Ham 4 MFj 1224 Computer Interface , , , 89.95 MF J 959 Receiver KLM 6M 50-52 Amp Supply AEX-1 APC-1 APG-1 & 3AEX-1 Hustler 4BTV & 5BTV Hustler Resonator I0-80m Hustler 4BTV & 5BTV Hustler Resonator I0-80m

Ham Help

Can anyone please advise me who AOukl have service data 011 fiEc of tor sate on the sets made for he US Government for WWII Army Signal Corps and US Navy, F, Krsnti 100 Osage Ave. NJ 080& 3 Needed' Mod* 1*-X dc module fo Swan 350. Kurl R. Fritsch WA3TOY 7862-103 Americans Circle Glan Burnle MD21Q61 Noed lots of help on how 10 FM he re ceive on the Drake Tfi-3 or TFMh Information and schematics, If possible. Bob King woeoLH 7900 Black shear Drive Hubar Heights OH 46420 I am looking for...

World R

The R3 half wavelength design eliminates the ground radial system required by other ver tic-sis. Optimum current distribution gives more efficiency and low angle radiation for DX communications. R3 brings high performance antenna features to those living tn apartments, condominiums or on small city lots. Even if you have plenty of space. R3's combination of neat appearance and OX capability make it ideal for your station. The R3 includes an Integral turner to give a perfect match across 10, 15,...

New Tubes

RTTY ASCII CW COMPUTER INTERFACE mfj,I224 99.95 rnm A m,t-r- rnw a _ ' 41T * I'Tfrr h, . rnm A m,t-r- rnw a _ ' 41T * I'Tfrr h, . Send ind racftlva wmputirired RTTY ASCii CW with nearly any ptrconal computer (ViC-20. Apple, TRS-8X, Atari, TI-99, Commooore 64, etc . Use Kantronics or most other RTTY CW software Copies both mark and space, any shift (including 170, 425, 850 Hz) and any speed (5-100 WPM RTTY CW, 300 baud ASCII), Sharp 8 pole active filter for CWand 170 Hz shift Sends 170, & 5Q...

Uhf

RU Monsanto RUl Serra da Estrela In Usbon with a hand-held, try R4, R7. R0, and RU . Opera ting Advice For Licensed Radio Amateurs, the new publication issued by the IARU, is very helpful for new hams In order to guide ihem in a good operation in the DX frequencies- According to a proposal presented by GRA (Grjpo de Radloamadores do Algarve), the local administration del iterated that those Interested could use other prefixes during WCY B3 insiead of ihe well-known CT that we use daiiy. SoH...

S

ID timer alerts every 9 minutes after reset. Switchable seconds readout. Elapsed timer. Just start clock from zero and note time of event up to 24 hours Bright blue 6 digits. Alarm with snooze function Synchronise with WV.V Lock function prevents mis-sefling Power out aiarm on indicators Black 5x2x3 in. 110 VAC, 60 Hz The primary fitter lets you peak, notch, low pass or nigh pass with extra steep shirts. Auxiliary filter gives 70 db notch. 40 Hz peak Both...

A

HD-73 Al I IANCE KAVV Dtnr ROTOR, Of- Ii Iii' AM ANTE I IGHI ruriv PO TI . . . , . 45, QO FM t rnN iJCTriR hrninfi LABIE.,PER FT.O.I fit91 11 TN I RSB < RO0K COA* * * - PER FT.O. 1ft Rli FIU Bl IPEiiM E* CtlAH - . . PER F I . O. 2S ifi r. R< l Mil SI EC CPA . * > f PER FT.O-2 t*7. 4r> b NtJ liE YEFt II trj 400 rtEi.LPit tl ECTRtWlC kfYER 6V.V3 riFJ 4 in DELU t h EVER l< RAMMPI CODE OEM. 114.95 FJ 422 DEI UiE KErEP OH EtENCMEP PAIltK E, ,93.95 4H1 50 CHARACTER fCHORV HEVER_______70. 3...

Terre Haute In

The 36th annual Wabash Valley Amateur Ramo Hamfest will be rrild on June 3, 1984 at the Vigo County Fairgrounds on US41. Vi mile south of 1-70. Registra hon is S2.0C each or 3 for S5.00 in advance and 3,00 each at the gale (children under 12 will be admuted Uee). A covered 12' x 12 llea-market space ts J3 0 outdoor flea market space is Iree. Some ic and tables will be available on a first-come basis There will be computer and packet-radio forums, food and refreshments, and overnight camping. A...

Element Multiple Choice

1 The original form of Basic is known as Dartmouth Basic 2) Which of the toflowing Extended Colo* Sa c commands tens a Radio Shac TRS-BO Gokir Computer to send sound through a TV speaker vno invented Basic Stan Wright and Herb Anderson 2) Frank Sullivan and Steven Klein 3) Thomas Mclntire and Steve Jobs 4 John Kemony and Thomas Kurtz 1) What fun el ion does the system command CALL - 151 serve on an Apple II ii Puts ihe computer unto the monitor mode 3) Activates the computers 60-column card 4)...

Call Frank Wdgzu Joe Karoo Or Steven Kasw Foh Quotes Other Related Products Fo Origin

(512) 733-0334 (Toll free number 800-531-5405) Hours 8 30 am to 5 00 p,m. Monday thru Friday 9 00 a.m. to 2 00 p.m. Saturday - CST Prices subject to change without notice. Here's how a hand-held makes for some ultralight Michigan madness. FM articles in the am a_____ ________teur press seem to cover 602 S. lei tenon a wide spectrum f rom Mason Ml 488r> 4 providing communications The author intently strapping into the flying harness prior to donning stopwatchi, camera, and hand-held. Some of...

Products Corporation

IL SMtf A'I < JOCOM prartuiTK art- & tjn d bu> and W* teb'.GC. at Ci.if -fflS CI i-ffl ptit*, liilOi* rft iily QSO, and I gave Gerald 5J1 and he gave m 5i2 Gerald told me that he was using a simple Vwave antenna just above the roof Later on, I shut down the station and went to bed I took two tablets of painkiller to relieve my headache. r as supposed to cam rtiy fr > end in Kola Kin& balu, 9M6MH, at about 1930 local time, but by then 1 was feeling too cold 10...

Meters

The SQ-meter band Is still a subject of dispute between the League and the Post* al Administration. We can now see the possrbltity of finding a solution to be able 10 use aft the band, but it will take several months to reach the final agreement. A first step towards It Is the acceptance from Ihe Administration not to take too strong actions against hams found out of the authorized small portions of frequencies. From now on. the bandits will receive only a written note of the violation instead...

All Band Hf

Hustler's new 6-BTV six-band trap vertical fixed station antenna offers all band operation with unmatched convenience, The 6-BTV offers lO, 15, 20, 30, 40, and 75 SO meter coverage with excellent bandwidth and low VSWR Its durabfe heavy gauge aluminum construction with fiberglass trap forms and stainless steel hardware ensures long reliability, Thirty meter kits (30-MTK) for 4-BTV and 5-BTV are also available.

Indoor Tuned Active Antenna

World Grabber rivals or exrnds rtceptlon of outside long wire* Unique tuned Active Antenna minimizes iniermod, improves select ivlty. reduces noise outside tuned band, even functions as preselector with external antennas. Covers 0,3-30 MHz. Telescoping antenna Tune, Band, Gain. On-off bypass controls, 6x2x6 in Uses 9V battery, 9-1B VDC or no VAC with adapter MFJ-1312. S9.95. 5 PQLICE FIRE WEATHER 2M HANDHELD CONVERTER Turn your synthesized (canning 39,95 2 meter handheld into a hot Police * mfj...

Dx World

Recently a program I wrote appeared in 73 (February, 19& 4 Put ihe DX World On the Screen. I would like to thank all the many people thai wrote ma with their comments, suggestions, and their orders. The real pay in doing a project like this is Ihe thanks that I receive from all my fellow hams Lord knows the money isn't worth it. I hopo that all the people who received my program were pleased with what they received. As many people already know, l did a rewrite of the Prefix Locator program...

Electronics

FM and is compatible with most handheid transceivers, including the TR24Q0. TR2500, JC-2AT, Yaesu. Santec, and Ten-Tec. Onty 300 mw input will deliver 5 watts out 3 watts in will deliver 35 watts out. Maximum input drive ievet is 5 watts. ducts in the amateur radio market, call or write for our free product and small parts catalog. Aw Oaylen Qmo J& -1 Q -(SI 3 2 1*11

Iy

The original K9AZC automatic beam aimer (redrawn q M R S SSIN POTCM l METfA 2SKQ Fig. 2. The basic elements of beam aiming. q M R S SSIN POTCM l METfA 2SKQ Fig. 2. The basic elements of beam aiming. are at either extreme, the pot arm ideally shows zero volts Unfortunately, only sometimes can we achieve the ideal conditions noted above. There are two design limits to the original beam aimer that may present problems to some hams. First, the CDE rotators have limit switches to shut off...

Awards

Of Bermuda- To qualify, applicants must submit proof of having worked a minimum of nine (9) parishes In Bermuda Sandys, Soulhampton, Warwick, Paget, Pem broke. Devonshire, Smrth's Hamilton, and St. George's. The award Is an antique map of Bermuda (20 x 23) suitably Inscribed with the recipient's name and cailsign and signed by His Excellency the Governor of Bermuda. The award Is not available to stations who worked Bermuda via mobile including maritime or aeronautical. No band or mode...

Rf Power

Your One Stop Sou ret for RF Power Tubes and Trartsjjfori Hons during the setting-up period. As far as I can ascertain, only one team abandoned efforts because of the weather conditions, and this was a two-man team, so It was not too surprising, 1964 saw the first time that a full YL team operated. The girls were based at Ingiewood in a mobile motor caravan, but even so had to contend with the wind and rain when putting up their antennas, etc. Another FD group with a difference was the station...

Specialevents Station Skaac

The Swedish Telecommunications Ad ministration has given permission to the Swedish Radio Amateur Radio Club to use the special-events prefix 7SK In con nection with operations from the club Station. SKQAG. during the annual conference of the European DX Council in Stock holm, June a-10, 19& 4 The EDXC is the umbrella organization of the shortwave radio listening clubs Jn Europe. The an-nuail conference has become the meeting pia In Europe for international broadcasters who are acilvely...

C T

A )prox digm Roi.ir< 1 type 'or raco mkr pjc 3 I or i2 00 small bivizcr flSO Hi 66 dB sound Output or S 12 vdr. 10 'l'O mA 1 1 L cpm atible_ 1-50 Simple Class C power amp features 8 times power gam 1 Wirt for 8 out. 2 Win for 15out. 4Win for30oul Max output 0t35W. incredible < aiue, complete v ith all pads, less case and T-R relay PA-1. 30 W pwr amp kit S 24.35 TR-1. RF sensed T-R relay kit 6.95 Small 3 16 Hex Slugs turned coil 3 turns 10 for Si.0<

Brookfld

The Chicago Suburban Radio Associa tion wilt operate special-event radio station N9BAT from the BrookJleld Zoo in celebration of its 50th anniversary. It is one of the largest zoos in the United Slates and was the flrsl American zoo to exhibit animals in naturalistic displays behind moats Instead of In cages Its Tropic World la the largest zoo building In the worlds housing African, Asian, and South American rain forests. Operation will be June 9 and 10 from 1600Z-2400Z. using the phone...

Bt

In addition, Morse error (eight dits) is sent when Return is depressed or an undefined key is struck. The Run Stop key is an exception and acts as a Break key if accidentally depressed, This program features a 255-character keyboard buffer. If the 255-character limit is exceeded, excess entries will result in the string too long error message. Should this occur, enter CONT to resume. The Delete key may be used in the normal manner to make changes and corrections, providing the character to be...

Panama

EmerlGk W4YTM HP1XRO President, Canal lone Amateur Radio Association PSC Box 2029 APO Miami FL 34002 it had been 15 years since Ms. Caballero, a resident of Marshalitown, Iowa, had left the Republic of Panama as a young child, in the interim, she had lost contact with her father, still in Panama. Her ardent desire to re-establish contact with her father and to rediscover her Panamanian roots inspired Marshall town, Iowa, amateur-radio opera tor Fred Meyer N& CFJ to try to help her....

Hi

L.-Lb quality 1 a breakthrough price Fwai m- * 3 frequency range -n-. h wnh prf aitip + dual selectable gate nmr-s * gate activity indicator QmV 5 150 MHz ty pre a I sensitivity * widp frequency rarge 1 pprn The most versatile tor less than S300 Features 3 seleciable gate limes 9 digits - 5 1 lr indicator * display hotd * 25jtiV (< 150 Ml iz 'vpical sensiln My * 10 MHi tirrmbaaeiot WWyf calibre- OV-i 0.1 PPM oven timebase . .59.95 BP-4 mead pftc* 8 95 A 9 digit counter lhat will ouiperform...

Augusta Nj

The Sussex County ARC will sponsor SCARC 84 on Saturday, July 14, 19& t. beginning at a00 am, at the Sussex County Fairgrounds, Plains Road, off Rie, 206, Augusta NJ Admission Is 2.00 Indoof tables are 55 00 in advance and 56,00 at the door taitgate space s 54,00 m advance and 5 00 at the gate. There will be food and refreshments and plenty of free parking. TalkEn on 9Q ,30 and .52 simplex For further In formation, wrile Donald R. Stickle K20X, Weldon Road, PD 04, Lake Hopatcong NJ 07843, of...

Standard Features

CW identification ID ROM chip included. Single chip XTAL controlled tone decoder. Tone to pulse compatibility with all telephone system eliminates critical tone adjustments in the mobile no wrong numbers, ever Can be strapped for straight tone dialing. Speed dialer compatible can consume up to 15 digits per second Sophisticated toll restrict logic user programmable restrict Five digit access code 59,049 user programmable code combinations (Their three digit code beginning with * has less than...

Versatile

Instantly ready to organize records as soon as you turn on your computer, MINI JINI is a cartridge that plugs nto the slot lh the back of the VIC 20 or 64K Designed for maximum versatility and general use, it serves anyone with records to keep the professional the siudent. the educator, the collector the small business man, the investor. the housewife, and the radio amateur who may be any of these MINI JlNi is ideal for those who want to harness rhe speed and power of their sophisticated units...

Vfx

C& H4faHt tmfet& oe-me*t & CH Spectrum now makes 3 tines of Repeaters the world famous *Super Deluxe9 SCR1000 4000, the Low Cost line of SCR77, and the NEW State of the Art Microprocessor Controlled SCR2000X Line of Repeaters The SCR77 Repealers maintain the quality of design, components and construction which have made Spectrum gear famous throughout the world for years. However, all of the 'bells & whistles which you may not need or want have been eliminated at a large cost...

Order Line

Da wa, Dentroa Dlgimax, Drake, ETO (Alpha), Eimac, Ertcomm, Hell* ienry, Hust er (Neuronics), Hy-Gain, icom, KLM, Kantronics, Larsen, MOM (Dalwa), MFJ, J.W, Milter, Mini-Products, Mirage, Newtronrcs, Nye Viking, PalomarT RF Products. Radio Amateur CaHbook, Robot, Rockwell Collins, Sax too, Shure, Swarv Telex, Tempo, Ten-Tec, Tokyo Hi Power, Trlonyx TUBES, W2AU, Waber, Wilson, Yaesu Ham and Commercial Radios, Vocom, Vibroplex, Curtis, Tri-Ex, Wacom Duplexers, Repeaters, Phelps Dodge, Fanon...

Twometer Beacon

The Lincoln Communications Society, Lincoln, Nebraska, has constructed a beacon transmitter to provide a signal for propagation studies and frequency reference. The beacon currently operates A1 CW) on 144.055 MHz with an outpul pow er of 10 Watts to an omnidirectional an tenn .i. The beacon location is in the north east comer of grid square EN 10. The ID call sign Is WBQQIY B. Reception reports should be sent to me at Ihe Lincoln Com-municaiions Society Charles Connor K NG Secretary 1801 So....

Box Mt Prospect Il

HAM SOFTWARE for COMMODORE 64 & VIC-ZO (w 16Kf Tlw Ldq Book. 3 -j fra purpose proa m tor receding searth.T)g tor (Dy car twnd 0TH 4 OSL status) rtfne ng A icptioiiallyi printing QSQs (S24 95 po& lpad USAl The Contai ijOflger a fun tpaiured contest loggtnq dupe checking aid l r the mid-ferti contester 95. postpaid USA) The Dupe Checker, for tftO& e who Ion QSQs by hand enter the bind ance icr change ill and all of me calls The iirugram checks tor iffiogbm feature95 p0stpaid USA ,M...

Antenna

Box 357 Sandown, NH 03873 (603) 887-2926 For the past fifteen years, ICM has been replacing original crystals in elements sent to us by our customers. Our crystals carry an unusual guarantee . . . they are guaranteed FOREVER when used in the equipment for which they were designed. Upon receipt, elements are tested, repaired, and parts replaced if required to assure they are working property. The crystal is installed and checked for trimability. The output is checked to see that it meets...

Evaluations

REPAIRS MODIFICATIONS INSTALLATIONS General Radiotelephone (ship radar endorsed) 'Second Class Radiotelegraph (ship radar and aircraft radiotelegraph endorsed) * Amateur Extra Class 13313 FOREST HILL RD. GRAND LEDGE, MICHIGAN, 48837 Ken Kohhoft K8AXH.7 1703 Carlson Cheyenne WY 52009 Two bucks and ten minutes are all it takes to re-en list a vintage receiver. The R-108, R-109, and R-110 FM Army surplus receivers are readily available, very well constructed, and best of all, inexpensive. They...

To Generate

SPEED 20 UpM TO R CEIUE the computer. A simpler method requires ii knowledge of transisior-to-translstor logic and the assembly of a terminal unll. This can be connected to pin 20 of IC1 of the Time* computer and with the right software, it will do a good job ol receiving CW. I zapped an IC with some ill-advised modifications of this sort. Static electricity does not mi* with ICs very well The Thompson Translator ( 9,95) is the cheapest solution that I have encountered. Input via the microphone...

Save A Bundle On

HELICAL RESONATOR VHF FM TRANSCEIVERS PREAMPS Call or Write for FREE CATALOG (Send S1.00 or 4 IRC'c for overseas mailing) Order by phone or mail Add S3 S & H per order (Electronic answering service evenings & weekends) Use VISA, MASTERCARD, Check, or UPS COD, 65-0 MOUL RD. HILTON NY 14468 Phone 716-392-9430 Hamtronics Is a registered trademark Our traditional preamps, proven in years of service Over 20,000 in use throughout the world. Tuneable over narrow range Specify exact ireq- band...

Mark Cr

In 1978 we created the first microprocessor based repeater and here is its successor the incomparable MARK4CR, Of course it has autodial and tail messages, after all, we invented those features. Sure it has autopatch, reverse patch and built-in ID. But hold on - it also has Message Master real speech and receiver voting. Its all new receiver puts 7 large helical resonators up front for extremely high dynamic range. Yes, MARK 4CR is the next generation Unlimited vocabulary speech messages in...

Wat Award

Alaska, offers a certificate for contacting three amateurs in Tok. There are no band or mode restrictions. However, ail contacts must be made after December 15, 1930. to be considered valid. To apply, prepare a list of contacts in order by cailsign. Include the name of the station operator, the date and time worked in GMT, and the mode and band of opera tion. QSL s noi required. Amateurs located in Tok Include AL70. AL7BO, AL7BV, and WL7APG. Send your...

Micro Control Specialties

23 Eim Park, Groveland, MA 01834 ( 617) 372-3442 Selling 73 will make money for you. Consider the facts Fact 1 Selling 73 increases store traffic our dealers tell us that 73 is one of the hottest-sellmg amateur radio magazines on the newsstands. Fact 2 There is a direct correlation between store traffic and sates increase the number of people coming through your door and you'll increase sales. Fact 3 Fact 1 + Fact 2 INCREASED ALE , which means more money for you. And that's a fact. For...

Liberia

Antenna parties I Amateurs here in Liberia love to go to antenna parties Saturday night I was lafking to one of my Irlends on two meters He had spent most of tho day on Embassy Hill helping to put up a three-band Cu she raft. He apologized because I was not invited for the occasion. As a mailer of fact, it was Fess than a year ago that I had helped put up Ihe same antenna at another location, Evidently. In this Instance, they had a tower on the roof of a multi-storied building and had found It...

Solid State Relays

P4B H del ECT1DB72 5vdc turn on Digisig, Inc. Model ECS-2L5 5vdc turn on PRICE EACH 7.50 Grigshy Bartor Model GB7400 5vdc turn on PRICE EACH 7.50 NOTE *** I terns may be substituted with o I20vac contact at 7amps or 2Damps on a 10* 10x 124 aluminum Heatsink with silicon grease. 240vac contact l amps or 4Qanps on -j 10x 10* .124 aluminum. Heatsink with silicon grease. 240vac contact at 15amps or 40amps on a 10'*x 10x , 124 aluminum, Heataink with silicon grease. brands or equivalent model...

Vv

Umax. 1.2Typ. 1.5max. 95Typ. 120max. 480min. 550Typ. 630max 2.5Typ. 4max. 1.7Typ. 2max. 370Typ. 1S2200 7'50 9min. lOTyp. llmax. I.2Typ. 1.5max. 75Typ. 90max. 440min. 520Typ. 600max 2Typ. 3max. 5Typ. 8max. 350Typ. FAIRCHILD OUMONT Oscilloscope Probes Model 4290B Input Impedance 10 meg., Input Capacity 6.5 to 12pf., Division Ratio (Volts Div Factor) 10 1, Cable Length 4Ft. , Frequency Range Over 100MHz. These Probes will work on all Tektronix, Hewlett Packard, and other...

Kingston Pa

The Murgas ARC (K3YTL) will sponsor the annual Wllkes-Barre Hamlesl on Sunday. June 3, 1984. beginning at 8 00 am, rain or shine, at the 109th Armory, Market Street, Kingston (across the river from W'lkes-Barre). Admission is 3.00 children under 16 and XYLs will be admitted free. There- will be indoor and outdoor la gaitng at 2.00 per space. Setups only wrll be at 6 00 am and tables and commercial power will be available. Talk-In on 14S.0H61 and ,52 simple*. For further information, write...

JUL

The Willamette Valley OX Club will hold (he 1904 OX Convention on July 27-29, 19& 4, at the Greenwood Inn, deaverton OR For further information, write Bob Herndon W7XN, W7 Andover Place, Fori-land OR 97202, or phone (503V232 2740 The Copper Country Radio Amateur Association wilt host the 1904 U > pcr Peninsula Hamfest on July 23, 1& S4, at the Memorial Union Cafeteria on the campus of Michigan Technological University, Houghton Ml, For further Information, wrile Howard Junkin NBFHF....

Jun

The Livonia Amateur Radio Club will host the 1984 ARRL Michigan State Convention on June 29-30, 1964, on the campus ot Schoolcraft College 3600 Haggerty Road at Mile Road. Livonia M3 (22 miles northwest of downtown Detroit), Schoolcraft Is easily accessible via Interstates 75, 275, 96 or S4 The SwaoN-Shop will be In the main gymnasium, and one of the two parking lots * SI be set iLside for trunk sales. Major exnibiiors will oe m the swap area, if requesled, Exhibitors1 setups will bu on...

Circuit Description

The full circuit diagram of the transistor tester Is shown in Fig, 2. The LP oscillator is a straightforward 7555 astable, operating at a little over 1 Hz. 101 is a CMOS version of the 556, used primarily because of its low current consumption. In order to permit the use of very simple NPN PNP switching, separate NPN and PNP test sockets are used, as well as separate zener stabilizers and ibase resistors. In the prototype, there was a tendency for very high gain PNP transistors not to cut off...

Dunellen Nj

The FUritan VaMey R dio Club m noid its 13th annual hamfest on Saturday. June 16 1984, beginning ai 8 30 am, at Columbia Park. Duneiien NJ. Donations for lookers are S200 each sellers pots are 5.00 each iiables are not supplied ). Food and drink will be available at the refreshment stand Tafk-in on 145-025 625 (W2QWR and 146.52 simplex. Advance tickets may do purchased from any club member For further informa-non call Jack Fisher W2IWK ai (201V 756-2546, or Ted -iopf WB2TKU al 0 725 3431...

Laporte In

The combined La Pone-Michigan City Amateur Radio Clubs will sponsor their Summer Hamfest on Sunday. July 15, 1984, from 8 00 am to 2 00 pm, at the La-Porte County Fairgrounds, State Road 2, west of LaPorte IN. TTie donation is S3 00 at tne gate Good food, cold dhnks. and paved outdoor perking will be availabto, For reservations for indoor tables < 40ctfoo1 , write PO Box 30, LaPorte IN 46350. The Amateur Radio Club of Kuoplo will hold the annual hamfest ot the Finnish Amateur Radio League...

South East Queensland Teletype Group Award

This award is open to ai) transmitting and listening amateur who gain award points in the following manner Australian amateurs must score 5 points and overseas amateurs must score 3 points (a)To qualify, a station must, where possible, copy the official station ot the South East Queensland Teletype Group, VK4TTV, during a news broadcast and, in the case ot a transmitting amateur, participate In the callback 2 award points). A portion of 3 he printout of the news broadcast together with ihe...

Bowling Green Ky

Rn Kentucky Colonel Amateur Radio CJub will hold 11s 2nd annual hamfest on June 9, 1984, from 800 am to 3 00 pm, at the JC Pavilion at the Soul hern Kentucky Fairgrounds, Bowllno Green KY, Tickets are 2,00 in advance end 3.00 at the door. Features will include an inside and out-aide flea market, inside displays of new equipment, food, free coffee, and free parking. Talk-In on 146.25 ,85 and 14 ,52 simplex For further information, write Ed Gann N4HID, Box 92 Route 19, Bowling Green KY 4210 t or...

The First Name In Electronic Test Gear

NEW FROM RAMSEY-20 MHz DUAL TRACE OSCILLOSCOPE Unsurpassed quality at an unbeatable price. The Ramsey oscilloscope compares to others costing hundreds more. Features include a component testing circuit that will allow you to easily lesl resistors, capacitors, digital cifcuiits and diodes TV video sync filler * wide bandwidti & high sensitivity internal graticule nigh quality rectangular CRT front panel trace rotator 2 axis high sensitivity x-y mode very tow power consumption * regulated...

K

6 + WPM Code Tape 13+ WPM Code Tape 20 + WPM Code Tape 25+ WPM Code Tape Code Tapes (any four above) Contest Cookbook A Guide to Ham Radio Hobby Computers Are Here Living on a Shoestring The Magic of Ham Radio The New Hobby Computers The New Weather Satellite Handbook Owner Repair of Radio Equipment Props gal Ion Wizard's Handbook SSB . .The Misunderstood Mode VHF Antenna Handbook Study Guide-Novice Class Study Gulcte< 5eneral Class Novice Study Tapes (Set of 3) Test Equip. Ub. v2 Audio...

Duplexers

Our Exclusive Bandpass-Reject Duplexers Wilh Our Patented superior performance. especially at close frequency separation. Models available lor all commercial and ham bands within the frequency range of 40 to P 0 BOX 7127 * WACO TEXAS 7671G 817 48-4435 P 0 BOX 7127 * WACO TEXAS 7671G 817 48-4435

SC

Telephone buy f> will receive a surprise gift In their package, Irvstore drawing* each hour. Come and register to win Grand prize _ for in store drawing No purchase necessary to register for In store drawings. ICOM Personnel to demonstrate new equipment. Refreshments will be served. See the new line of iCOM equipment, New equipment available tor your inspection and purchase Saturday, JUNE 9,1964 9 00a.m. til 5 00p.m.

First Ca Rtty

The first county RTTY award has been given to Joe IOAOF from Rome. He had to contact 12,000 US stations to be able to reach Ihe 500 different counties, in the meantime, he has also worked 192 countries end Is now trying to reach the 200 level that Is quite an achievement for a RTTYer He Is always looking tor tba States, so If you hear him, give a call. ***** Maybe you will be Interested to know that in our country you can Install a television station and broadcast porno films all through the...

Meca

The Macomb Emergency Communica lions Association will nave its secone special event on the weekend of June 8-10. Operation will commence at 2200Z Fnday, June 6> and continue around the ckxk to 22002 Sunday, June 10, near the lower end ol the General-class portion of each amateur band as propagation dictates. Modes of operation will be SSB and CW RTTY on HF and FM phone on 146,07*.67 OSL to MECA, Box 400, Utlca Ml 48067 wilh a 9 x 12* SASE for certificate DX stations need send onty OSL

The Ncdxf Meter Beacon Network

Have you been listening on 14100 as I suggested last monih If noi. tune your receiver to that frequency as you read the column this time. What do you hear under all that interference A strange pattern of CW signals and long dasnea from stations all over the world. This is the 20-meter beacon network, constructed by the Northern California DX Foundation (NCDXF)- This networ* consists of eighl automated beacons severed around he globe Each beacon transmits on a strict time sequence (see Table 1)....

Power Supply Hit For Above With Case

ANTENNAS & OTHER ACCESSORIES AVAILABLE. SEND FOR MORE INFO COMPLETE SYSTEM AS SHOWN NOT A KiT. INCLUDES A PC BOARD, POWER SUPPLY, CABLES & CONNEC-TORS-PRE-ASSEMBLED AND TESTED. 24dB GAIN OR GREATER BUY YOUR FIRST UNIT AT S99.95 3 OR MOPE UNITS AT 9 95 eft NTSC RF Modulator w< ih sav. fiftcF J - - rr r---T r*-- itfT- r-i r + i- r-t---+ tH (for use wuh cur puTflrs, satellite syslwms rind hnlflfiacing Cabinet, powftf supply and hardware HAL ProKtmity Keyer i ._a i. i fc- - - i u j-u -i. g...

Shipping And

DUNG S150 for the first book. 1.00 for each addl* tional book for US delivery and foreign surface. 10.00 per book for for eign airmail. Orders payable in US dollars only. Complete the postage paid card, or Itemize your order with payment or complete credit information (include postage and handling to WQ Books, ATTN, Retail Sales, fits. 101 and EJm St, Peterborough, NH 03458. Prices and Av rf btfity SuOftCt 10 Change Prices and Av rf btfity SuOftCt 10 Change

Uhf Models

Kil with Case 59 Less Case S49 Wired 75 SCANNER CONVERTERS Copy 72-76. 135-144H 240-270,400-420. or 306-894 MHz bands on any scanner Wired tested Only 88, For SSB, CW, ATV. FM, etc. Why pay big bucks for a mufti mode rig tor each band Can be iln ked v. h recede converters for transce i ve. 2 Watts output vhf. 1 Watt uhf. For VHF Model XV2 Kit S79 Wired 3149 (Specify band)

Vanguard Labs

106-23 J i ma lea Ave,, Mollis, NY 11423 Phon (213)4 -272 QUALITY SATELUTE TELEVISION RECEPTION Designed And Engineered Especially For The Home Conifer's DE 2001 featufes a 12' antenna, contemporary styled receiver, motorized Ant+ drive, LNA, plus all the hardware needed for a complete installation, backed by a full-year warranty. The installation manuaf gives you over 100 pages of information and instructions. All this for only S2395, 10' mesh antenna, KLM Olympiad receiver, 100 LNA+ polarotor...

Knox County

The Knox County Amateur Radio Club wilt have a special-event station on the air to commemorate Galesburg Railroad Days. Railroad Days is an annual event for Gaiesburg, Illinois, which pays tribute to the role of the Burtlngton Northern (for ffwty the CB A Ql and the Si te Fe flail roads in the development of the area The KCARC will have Us speclal-evenl station on the air on Saturday and Surv day, June 9 and 10, 1984< from 1300Z til 2200Z Th station will operate on one of the following...

Relay

Better communications start with your subscription tt Start my no-risk subscription today and send me 12 issues of 73 for 19,97,1 understand Y M S 1 that with payment enclosed or credit card order I will receive a FREE issue making a total of 13 issues for 19.97* CHECK MO CMC VISA AE Bill Me 19.97 for 12 issues CanjJ.i v Mexico 522.9 I veur onEy, US fund* Jra n an US bank Fnreiftn Surface S2 5.1X1, yiar antf, US fund* drawn on US bsni nrtifgh Airmail plea inquire Please allow *> -H far...

Israel

I've de .it with specific areas of amateur radio In Israel, In the meantime, a number of news Hems have accumulated, so the time has come to take care of these odds ano ends The Israel Amateur Radio Club Contest Committee has announced three upcoming competitions The first two are on a national basis the Spring Contest on Israel Independence Day, May 7, on 160, 30, and 40 meters only, and a VHF-UHF test to be held in the summer. Of Interest to readers of this column Is...

The Antenna Company

Box 468O Manchester, NH 03108 USA TELEPHONE 603-627-7877 TELEX 953-050 CUSHSIG MAN AVAILABLE THROUGH DEALERS WORLDWIDE See - Lt of Aawtiserj on page 1 m 300 WATT ANTENNA TUNER HAS SWR WATTMETER, ANTENNA SWITCH, BALUN. MATCHES VIRTUALLY EVERYTHING FROM 1.8 TO 30 MHz. MFJ's fastest sailing tunar packs in plenty of new features' New Styling Brushed aluminum front Alt metal cabinet New SWR Wattmeter) More accurate Switch selectable 300 30 watt ranges Read fo-ware 'reflected...

Oo

N PAGE BJ A 2 IN 30 OtJf WPIH i-Ht AMP. . , 75. hlf-ABE emH FM 'SSF IW M Ht iT. . . . IS I . tX MIRA5E BtOlb Frt SSB lOM IN lfti> W OUT 235.OO MIRAGE HtOIti F M Stiff IN IftiHrf OUT . . 2.h 1 , OO F yO MHSH POWER IM W PDUT-. .,,,39. 95 TOKYO lllliH PUUFR MLB2V lO IN Bn OUT. , . . 1-W.9S TOKYO H1 OH -POWER Ht. lf> V 10 IN IAO UUT 309.95 litt YO H1W POWER HI 25 IN 160 UT279.95 9 . ErONC IIKR t.S wmz XiWA II S- - 39, ff J-iiH AS ABOVE NfTH 4s I PM.Ift 49, MF ,1 - 941 r ANTENNA TIWER SWf<...

Ic Om

Inc., 2112-1Ave NE Deilevue, WA 90004(206)454-0155 3331 Toweiwood Drive,5uire307 Dol as.TX 75234(214)020-2700 AJI srurec specifications ore opp oxinrcie and subject to chonte wirhojr notfce or obi 90non AJI ICOM radios sgntfUcottrty exceed FCC regufcr-om mjriog spjnOLrs emjssJons 271 H10 3 1 100 Watts. Now oleometer base statton with 100 wafts of internal poweri The IC-271H provides all the power required for operation from remote places to repeaters or for simplex

New Zealand Sand Plans

These plans help you comply with the official Frequency Allocation List The class of emission from an amateur station shall be selected in the light of the total available bandwidth for all users and shaii be in accordance with current operating practice. These plans represent current operating practice. See Call book for designated frequen-dies and detailed band plans. All amateurs are reminded of 1) The ITU Radio Regulations Edition of 1fl8 including 307, The bandwrdths of emission shall also...

Wgftmmxj

WT5UBISHI X BAM) wrsuttS Gi*S FET QRO n-lllll 1d4GHi.lBHi*wl.UiHiOOF& > F0-111BT It bor 1i.OGHf.UEMl20 Flange FEVUF11KF Catrptata Natefatyu Fl> , 1 .< 6& GHz LD Cm tw uxtd for 11,6 NU tttntVW ind Dfcs FO-OPlHF DPLEXEft TrcriKtftw Modul* I-fen* 15 dftG dw cast hwit intettJ 00) FtttiKTltnCS - MT1UB14 la -j art Ariane* PDS Hqt- ftupul IRLED& . PUi Pft& T diMtt. iPt SOBens WTSUHSW w i.AB ppwiA TOAHSISTQIW FQA (po tzse Ft-7WVh 2.2dBflF (ft lGW ( I.M NEC USISllraclnplKHmti. Shirans...

Australia

Joyce VK3YJ 44 Wren Street A tons 3018 Victoria Australia There are many contests on the amateur radio bands throughout the year and Australia has us fair share, with most of us entering these contests, ellher serious-iy or In a tighlhearted manner. However, there is one contest In Australia that is never entered into with a flippant or light hearted mannef because of what it represents. j am speaking, of course, of our Remembrance Oay Contest, held on the closest weekend to August 15 each...

Preamplifier

HAL-PA-tS WIDE BAND PRE AMPLIFIER, 2-200 MHz BANDWIDTH I-3dB POINTS), l9d6GAIN KIT 95 HAL-PA-V4 WIDE BAND PRE AMPLIFIER. 10 MH TO 1 4 GHzh 12dB GAIN FULLY ASSEMBLED AND TESTED Si2 95 HAL-PA 2.1 GHz 2STAGE PRE AMPLIFIER, DESIGNED FOR2304 DOWN CONVERTER MADE TO PiGGIE BACK ON THE 2304 BOARD OFFERS 20dB GAJN ALSO HAS AN IMAGE REJECTION FILTER FULLY ASSEMBLED ANDTESTEDS34.95 SHIPPING IN FORMATION ORDERS OVER S25 WHLLBE SHIPPED POST PAID EXCEPT ON ITEMS WHERE ADDITIONAL CHARGES ARE REQUESTED. ON...

Satellite Tv

C nvisrti any Tv to neo maniior Super stabitr tunafefft ovci ch i Ru'-s on 5 6- accepts str vldt srgnal Bctl ur-.iron llj'a ttwKat Cor ipi r k i VD 1 7.35 Youi old favarlles Eire here again Over 7,000 Sold to Dale. Be one of Ihe gang and order yours lodsyl Try your hand at buiJding the finest looking clock on the market Its satin finish amortized alurnrnum case looks great anywhere. while six .4 LED digits provide a highly readable display This is a complete kit. no exlras needed, and it only...

The Ultimate Simplex Autopatch

PRIVATE PATCH II is for the discriminating amateur who demands the finest in simplex autopatch performance, features and quality. Our digitally processed VOX and simplex loop create a level of communications quality which is not even closely rivaled. Please do not confuse our technique with sampling PRIVATE PATCH II has the following major advantages over sampling type autopatches Compatible with every known transceiver yesT synthesized and relay switched types included. No transceiver...

Cpo

Runs on 3-12 Ydc I w 4l out 1 KHZ quod tot CPC Alarm. Aud'O Oscillator Compiere kit 12 95 A great attention getter which alternately flashes 2 jumbo l.ed . USe for name hfldges, buttons, warning panel lights, anyihinq' Runs on 3 to 15 volis Complete kn BL-i A super nigh performance TM wire-i ss mike k m ' Transmits a stable jiigna up io 300 yards wnh Sorwif HLidi quality by means of ts Duill n fciectret mike Kit includes car,e m ike on gfl Switch antenna, r jjIrry in s ups instructions This is...

Direct Keying

If you engage the Receive option without an interface attached, 73 Morse R T will lock and you will be unable to return to Transmit. Until you have constructed the interface (or attached a suitable one)r place a Remark (REM ) at the beginning of program line 255 to prevent the lockup. Remember to remove it when you connect an interface. 73 Morse Receive,Transmit supports the following amateur CW prosigns

Pr Counter Preamp

The PR-2 15 ideal for miiasurlng v eak Signals from 0 to 1 000 MH * llal 25 lib gam BNC carinectors * great STiiflmg RF * ideal recnver TV preamp Exiefids the range nf yourpresent counter lo 600MHz * 2-yiaga preamp diVJdl by 10 circuitry * ser. iiu- y 25mv I 150 MHz BNC conneciors * olives any counter

Atvsstv

OPERATING COURTESY RULES ND REMULATIONS RADIO *AVE PROPAGATION AMATEUR RAUIO PRACTICE ELECTRICAL PRINCIPLES CIRCUIT COMPONENTS PRACTICAL CIRCUITS SIGNALS AND EMISSIONS RADIO WAVE PROPAGATION EMERG . NC Y C MMUNIC AT I ON S TftANSKITTER POWER LIMITS STATION-I REQUIREMENTS THIRD-PARTY FARTICI PA HON FREQUENCY 3AN3S SELECTION Q rREQUENCIES R.C. MODELS PROHIBITED PRACTICES RADIOTELEPHONY RADIO TELEPRINTING REPEATERS vox TRANSMITTER CONTROL SREAK-IN TELEGRAPHY ANTENA OR IENTATI > N INTERNATIONAL...

Power Amplifiers

All models include HF VOX & Low Noise FL Pre-Amp , (m pre-imp in MML432-I00 fid up4268-20 up4296-20) jlJOVV frtitp l MMtJ lipJ.S iw nr 3W in 209.95 MJW i n n j lilVl imnil V or 3W in 3-3Wfnput M tUH) 2-3W input I50. J re-selecior iiilers Pre amplifier. Low-pass filters Transveners Varactor tripiers Conveners Spectrum International, Inc. Posl Office Bo* 1084S Concord, Mass. 01742 USA

Swift Current Sask

The Saskatchewan Hamfest will be held on June 30. 1904. in Swift Current SASK. Reg i strati on wrii be the evening before. Features will include contests, displays, a ladies' program, and a banquel. For more details, contact the Saskatchewan Hamfest Committee to 6 Swift Cuirent SASK S9H 3V5. Canada, The independent Repeater Association of Grand Rapids Ml *ni hold its annual Hamfesttval r> n Saturday, June 30, 1B84, from 8 00 am until 4 00 pm, at ihe Wyoming National Guard Armory, 44th Street....

Mike

See music come alive1 3 different lights flicker wrth music One ligtlj each for nigh, m d-range and lows Each mdi vi dually adjustable and dnves up to 300 W runs on 110 VAC. A 5up .jr en iliveamplt-fipr which wiU pick up a pin drop at 15 teer1 Great for moniioring baby's room or as general purpose amplifier Full 2 W rms outpul runs on 6 to olrs uses fJ 45 ohm speaker

Priority

Kenwood's R-2000 receiver has opened the doors to a new world in the 150-kHz to 30-MHz HI bands, with microprocessor controlled operating feattjjrei and in UF conversion Pll circuit tor maximum f< exibffity and enhsnr me excuement o listening to stations from east to west, and from pole to pole. An optional VC-10 VH.F converter. for 118 to -174-MHz. allows access to police, aviation, marine, commercial, and two meter Amateu' frequencies With dual digital VFO's. ten memories that store...