Qlowestourynv

LI MARC will sponsor (he ARRL Long Kland H mfairon May 17 beginning at 9 a m at the New York insiiium of Tecnnotogy1 Rte 25A The RC-850 controller oilers your group the most advanced repeater control technology available anywhere. Through ongoing hardware and software enhancements even our first CListomers enjoy new features that keep it ahead of the pack, With the *850, your repeater becomes fully remotely programmable. From command codes to the repeater s operating schedule, virtually...

The Standard Of Performance

One Newtronics Place Mineral Walls, Texas 76067 One Newtronics Place Mineral Walls, Texas 76067 mation and an application form, write to the DARA Scholarship Committee. 3t7 Ernst Avenue, Dayton OH 45405. THE FOUNDATION FOR AMATEUR RADIO (FAR) has announced that twenty-six scholarships will be awarded lor the 1987-88 aca* demic year. Any licensed amateur pursuing full-time studies at an accredited college, university. or technical school is eligible to compete for these awards. Most of the...

Tma

Big multi-color LCD and back-lit controls for excellent visibility Optronaf front panel programmable 38-tone CTCSS encoder includes 97.4 Hz Frequency lock switch Digital Channel Link (DCL) option High performance GaAs FET fr -nt end receiver TM-3530A 25 watts of 220 MHz FM-Kenwood style Features include built-in 7-digit telephone number memory, auto dialer, direct frequency entry and big LCD. All this makes the TM-3530A the most sophisticated rig on 220 MHz First mobile transceiver with...

Roundup

Don't forget World Telecommunications Day, and the XVIII fTU Contest, sponsored by LABRA L*ga de Amadores Brasileiros de Radio Emissao), 0000 UTC, Saturday, May 16 to 2400 UTC, Sunday, May 17 The objeci is for amateurs around the world to contact other amateurs in as many different ITU zones as possible, in order to enable their country to win the ITU Plaque, which remains with the country. Only on the 160-. 80 , 40-. 20-. 15-, and lo meter bands. Details from your local club. Marvin...

Old Bridge Nj

The largest indoor coffipuler and hamfesi incentral New Jerse* Ihe O0RA annuaf festival wit be held on May 17. beginning ai 8 a.m , at Old Bridge Civic Cemer Arena, Cot-trel Road and Highway 518, Old Bridge. New Jersey (Easy access Rie 9 lo Highway 516E, 3 4 mile to Civic Center) Sellers < n-doo' 512, tailgaiing sfl Buyers 55 save 51 Jf tJCKfi is bought in advance) Table admits one XYL. kids under 12 free Exams gwen. pre registration preferred. Walk-in regi& ira lion ai 9 a.rn Jesting at 0...

MODEL

Sow for the first U me you can enjoy the truly uniijuctiperalinn of a Digii I Voicc Announ emeni Syittfrt JAi ncd Jpeafk-ilh- rur Amateur Radio cornminieatkitTi The DVK J iX i rt.'presL'iHs I he latest lechnoEogy in Ji ildi autJn> processing Create yutir own natural volet contest calls CQs i c Your volt ' Is stored in .Li ital memory, reatfy to in- p hived back at the touch of a W The Digital Voice Kuyrr is not a tapL- recorder or njtwtic sounding Synthesizer but a true full fidelity na(ur*j...

Aa

It's been a long time coming, but Microwave Modules Ltd. of Liverpool. England, has finaliy brought out tne stx-meter counterpart to the two-meter MMT 144 26R reviewed in the March. 1986, issue . Back then I was impressed enough with the MMT 144 28 that II and many other VHF operators started badgering Ivars Lauzums o1 The PX Shack the U,S, importer to get a version of this on six meters Things do move at a different pace in England, however. The factory was in the midst of developmental work...

Fun Things To Do

Now that Ive had a miserable time trying to operate portable during winter contests, it's time to plan the summer contest schedule. The problem has always been one of portability being able to bring the most' in a station with the least in weight Up until now. that meant 2- and 6-meter multimodes with linear transverters for each band. It shouldn't surprise you, ihen, that the ads for Yaesu's new FT-290R and FT-690R MKII series caught my eye. at department, I was able to procure one of each for...

Eat Sink

Schematic and connections for RA TSt the resume-after-fransmit scut men open. AlTcr a period of time determined by the R I Cl combination which can be adjusted to suit your needsK the 555 resets, reclos-ing the relay contacts. This closes the S S switch, causing ihe radio to resume scanning the memory channels. My RATS was constructed using point-to-point wiring. I used four-conductor, mutti- ribbon cable to connect RATS to the radio. After coating the four wire ends of the ribbon cable...

Accessories Fob Ramsey Counters

Telescopic whip antenna B HC plug S BJ5 High impedance probe, light loading 16.95 Low pass probe, audio use 16.95 Direct probe, general purpose use _ . 13.95 T MC khp giawTftftf ttm v lr iDflivi UMplutM T ium in j iqi iJ ltirmSDrrEjbr.il zddG 1 if ihrpflir.i rid nun' fo iFiHiriiunmi S i on uriirfn a c. IBn lor urlxx nun COD Jtiil U M I COD in U SU onivl orders undur Jl5 00 HV rpsuin-Mt a d 7Lt UIK til 9Q4IV rt wirriniy m ill Hit I yeif wit amp libsr -ir-intv ntlwrf 9 unlit ra ms ft electronics....

Microlog

BRINGING A PERSONAL VOICE TO MASS COMMUNICATfONS Dick Smith Electronics Function Generator Kit Dick Smith Electronics PO Box 2249 Redwood City CA 94063 Price class 70 As an electronics technician, I'm always on the lookout for test gear for the workbench or shack When my forly-year-old audio signal generator finally bit the dust, I decided it was lime for a new piece of gear to take its place Luckily. I found exactly what was looking for m a friend's Dick Smith Electronics catalog ihe K-3520...

Info

Seemed no one really knew what io do with the meta envelope leave it float or ground it Later on RCA redesigned the lute using a glass enveiope This glass tube was named 6L6G Tnen RCA moved the plate connection to the top of ihe tube and the 807 was born, The 807 was a real rock-crusher. Running an 807 with 600 volts on the piate could turn out 60 Watts input all day long But the days of the 807 were numbered it was to be replaced by the 6146, However, the 6L6 was given a new life tn the wortd...

Tokyo Hypower Labs W Meter

Tokyo Hy-Power Labs, a subsidiary of Encomm, Inc has released their model HL-160V25A Hamtronics' CA137 28 weather satelliie converter 2-meter amplifier. This amplifer provides 160 Watts of output from 25 Watts of input across the entire 2-meter band. The HL-160V25A amp can be used for FM. SS8. and CW operation and includes an internal GaAsFET preamp. The HL-160V25A is priced at 269.95, For more information about Tokyo Hy-Power Labs amplifiers, circle number 215 on your Reader Service card.

Comwest Radio Systems

8179 Main Street Vancouver, BC Canada V5X 3L2 The AUTO-KALL AK 10 is a OTMF selective caNing unit li connecis 50 Ite external speaker jack on pur VHFJUHF FM transceiver scanner etc Your speakei remains silent until someone sends your personal 3-digit Touch-Tone code That means an and ttieXYU don't have tofisten roatl rhechaMerall ttie hme 8ulif someonf wants to reach yQkjttie yean Great toe am witMwoor more hams, act ,-atior of irrierger.cy nets etc

Kant Ron Ics K Pc Dualport Communicator

The KPC-4 Dual-Port Communicator is Kantronics' newest packet unit, ft features two fully functional VHF packet ports, digipeating on each port. VHP gateway between ports, and an RS-232 computer porr Digipeating and gateway operations occur simultaneously whiie you're connected on one or both ports. The RS-232 TTL terminal interfacing provides compatibility to all computers. Stream switching provides for access to both radio ports, each of which supports AX.25 protocol. The KPC-4 also contains...

Fraction Of Our Huge Inventory

213 North Frederick Ave. 11 Gaithersburg, MD 20877 PRICES DO NOT INCLUDE SHIPPING PRICES SUBJECT TO CHANGE VISA. MASTERCARD. OR C O 0 UPS C O D ADD 2 00 PER ORDER FLUXLESS ALUMINUM BRAZING WiTH A PROPANE TORCH or 0XYACETYLENE BRAZE ALUMINUM AS THIN AS AN ALUMINUM BEVERAGE CAN1 FASRCATE-REPAJR-MAJNTAJN AiU-Mr-NUM 4 ZINC ALLOVS - RAD 0 A TV ANTENNAE - 90ATS - fiOAT PROPEL LERS - AUTO RAOlATOftS - DIES -CFtAMK CASES GRILLS AIR CONOl TONING SYSTEMS - FARM ft DAIRY EQUIPMENT IRRIGATION PIPES STORM...

Hamtroncs Wxsat Converter

Hamtronics , Inc., has introduced the CA137-28 receiver converter for reception of weath-erfax pictures from satellites transmitting in the 137-MHz band. The CA137-28 translates all signals received in the 136-138-MHz satellite band for reception on lunabJe 28-30-MHz wideband FM receivers. To make the conversion in dial frequency, subtract 108,000 from the frequency you want to receive. The receiver uses a low-noise front end to provide sensitivity of less than 0 2 uV. It operates on 13.6 V dc...

Israel

Ron Gang 4Z4MK Kibbutz Urim 65 530, Negev MPO Israel The Annual Israel Amateur Radio Club social evening last December in Tel Aviv was the biggest yet, with 650 attending. Doubtlessly more than partly responsible was a raffle that radio clubs the world over could be proud of. For two months, members of a small dedicated group of hams had been making pesis of themselves going around to ham-involved businesses and others, and made sure that word leaked out about their successes Nearly 200 prizes...

Tv

Only ICOM offers the most complete line of ham gear for L2GHz the IOI27IA full-featured base station transceiver the IC-12AT handheld, the new iC-1200 mobile and the EC-RP1210 repeater. So. get away from the crowd and be a pioneer on L2GHz. The IC-127IA 1240-I300MHZ base station transceiver features 10 watts of RF output power, 32 memories, scanning and multi-mode operation including ATV amateur TV . A variety of options are available for the IC-I271A including the...

Fhg

For sample copy. 24 issues, 9.95 per year. Box 1771 Grand Forks ND 58206-1771, BNB554 total price for a box of 10 delivered anywhere in continental U .S. Call for 24-hour order info. KB6MT 714 -990-9622. 8NB555 COMMODORE C-128 specific ham programs SATRAK128 tracks Lp to 8 sateltites simultaneously in real-time. C128RTTY RTTY program for user port RTTY exampte, MFJ 1228 devices. Send SASE for additional information on above to Reid Bristor WA4UPD, 14303 177th Avenue SE, Renter WA 98056. Phone...

Dse Field Strength Meter

Dick Smith Electronics Inc has announced a new field strength meter kit. The field strength meter is buiti on a smalt PCB that mounts directly on the meter terminals. Only the sensitivity pot and power switch are offboard. The telescopic antenna mounts via a small right-angle bracket which bolts to the board The case provides additional support for the antenna via a grom-meted hole in the case top. The DSE field strength meter is priced at 39.95 plus 3,50 shipping and handling. For more...

Madison Meets Your New Band Needs

NOVICES WELCOME TO YOUR NEW OPERATING PRIVILEGES ON THE 10M, 220 MHz, and 1265 MHz AMATEUR BANDS. Here's just a sample of some of the things Madison can provide to get you started ARRL Tune in the World book and tapes 10.00 Gordon West Code Practice Oscillator A Key 20.00 Cushcraft Ringo AR-10 Cushcraft 10-3 CD three-element beam 99.00 Create 7-elements on 42-foot boom 469.00 KLM 10-meter, 6-elemeint beam 252.00 Equipment for Ten Meter Clear Channet AR-3300 Ten-meter transceiver 100 watts input...

Soud State Buzzer

H14L ADT4 TO , TQU fMt L ELECTRONICS P 0 m 3pm t .,. H W r Photo B A medium-resolution quad from a METEOR 2-15 pass. The area covered here is about 1 4 of the full frame with an effective resolution of 512 x 512. Lake Superior ties along the lower left of the image lt Photo C A high-resofulion quadrant from the METEOR pass in PhoioA The white circle at the right is Lake Manicouagan 1,024 x 768 effective resolution lt better off to use the additional memory to store more pictures or store 6- or...

Tmaa

2 m and 70 cm FM compact mobile transceivers The all-new TM-221A and TM-421A FM transceivers represent the New Generation in Amateur radio equip ment. The superior Kenwood GaAs FET front end receiver reliable and clean RF amplifier circuits, and new features all add up to an outstanding value for mobile FM stations The optional RC-10 handset control unit is an exciting new accessory that will increase your mobile operating enjoyment TM-221A provides 45 W. 1M-421A is the first 35 W 70 cm mobile...

W

Mhz Circuit

Photo a MMT50 144 i-f board, Note the 15-W resistive pad near the upper left corner The rear-panel layout is just like the 50 144 with the exception of separate 28-MHz TX and RX connections. You cannot use transcetve connections on ten meters unless you empioy an external relay at this joint The lineup on the 50 28S is also similar, with the exception of ower drive levels at the input port. To accommodate a wide range of users, the 'actory has provided an on-board amplifier to boost very-low...

Mvoc

Ftp. 2 Schematic of the high-voltage power supply and the low-voltage supply. Relay is used for receiver muting and antenna switching. rf choke on the output. Should the coupling capacitor short, the choke will short the plate supply to ground, blowing the fuse and thus keeping the plate supply voltage off the antenna That's about it. 1 built the unit shown in the photographs in about three evenings. Most of the time was for the metal work on the chassis, I use an old Collins 75A4 for a...