International

Amis Johnson N1BAC 43 OkS Homestead Hwy. N. Swamey NH 03431 Weil my computer seems to be fixed (I hope), it was acting flaky in more than one way so I thought it might have something to do with the BIOS chip. I removed that and then placed it back in the socket. That seems to have fixed the problem, t guess the chip had been in the socket for so long that rhe pins got a tittle cor-rcxfed- We have a new Hambassador stepping into the tightt Bilt Meara N2CQR HI8. who has sent several newsworthy...

Israel

Negev 65530 Israel QRT For the past six years, Jim Stone 4X1 RU has been running an HF-VHF Packet Radio Gateway He has dedicated his HF transceiver, amplifier, and beam antenna to this end, and spends about three hours of his time daily keeping everything orderty and running smoothly. For us in 4X-Land, his station is the main junction for all messages and bulletins to and Irom outside the country. We daily check into one ot the four BBSs on 2 metres, and get a...

Custom Madehand Tooled

Leather products with your initials, name, call letters. Photo's & estimates available. Key rings, wallets, belts, purses, hanging signs, specialty items. GREAT GIFT, LEATHER & WEST, 67 Causeway Rd., West Swanzey NH 03469. (603)352-6256. 9-4 pm. M F ET. BNB215 SUPERFAST MORSE CODE SU-PEREASY. Subliminal cassette. 12. LEARN MORSE CODE IN 1 HOUR, Amazing supcreasy technique, 12, Both 20. Moneyback guarantee. Free catalog SASE. BAHR-T2, 150 Greenfield, BEoomingdale IL 60108, BNB221 Amerilran...

Rep Repeater

A fully microprocessor-controlled repeater with autopatch and many versatile dtmf control features at less than you might pay for a bare*bones repeater or controller alone We dotYt skimp on rf modules, either Check the features on R144 Receiver below, for instance GaAs FET front-end, helical resonators, sharp crystal filters, hysteresis squelch. Owner can inhibit atiiopaicn or re-peaie' either open or closed access for repealer or autopatch and enable toll cafls. reverse paten, ker-cnurik...

Open Lines

Bob Grove WA4PYQ, Publisherof Monitoring Times Ned Steams AA7A Operating Moonbounce Dayton Hamvention Preview DaveGrubbKCSCF, Chairman Ham Radio & More is also available on Satellite Spacenet 3, Transponder 9,6.8 Audio. Find out what radio station airs Ham Radio & More in your local area by calling the originating station, KFN N, at602-241-1510. For sponsorship information contact Ron Cohen at602-241-CMS 2. C> L Houghton WB6IGP San Diego Microwave Group 6345 Badger Lake Ave. San Diego...

Used Equipment

Photo C, With over 20 years of experience, search and rescue volunteer Pat Robinson WAGOIS is Quick to embrace new technologies such as satellite navigation unitsr CAP makes extensive use of these devices to pinpoint crash locations. Photo C, With over 20 years of experience, search and rescue volunteer Pat Robinson WAGOIS is Quick to embrace new technologies such as satellite navigation unitsr CAP makes extensive use of these devices to pinpoint crash locations. modulation. They may be...

Info

This forms a very large equivalent radiator and gives you incredible bandwidths. These radiator stubs provide automatic handswitching - there is absolutely no low due to loading coils or traps. On 30,40, 75 80 Meters, enS loading - the most efficient form of loading - gi ves you highly efficient performance, excellent bandwidth, low' angle radiation and automatic band switching, MFJ's unique Frequency Adaptive L-Network provides automatic impedance matching for lowest SWR on these low bands, T...

Stereo Fm Transmitter

Run your own Stereo FM radnc or l Transmits a stable sx ial m the 33-108 MHz FM Droadcast band uo to 1 mile Detailed manual provides helpful m o on FCC negs. antenna ideas and range to expect. Latest design features adjustable line level inputs, p re-emphasis and crystal com roiled sub carrier. Connects to any CD or tape player, mike mixer or radio, includes free tuning tool loof For a pro look add our matching case set with onboard whip antenna FM-10A Slereo transmitter kit CFM Case,whip ant...

Rrt

ART-1 A complete interlace system tor send and receive on CW, RTTY Saudot amp ASCHJand AMTOR, tor use w,th the Commodore 64 tie computer Operating program tx incited air-1 a complete interface system for send ami receive on CW, RTTY Baudot amp ASCII and AMTOR, for use with Commodore VIC-20. Operating program in ROM. air-1 a complete interface system for send ami receive on CW, RTTY Baudot amp ASCII and AMTOR, for use with Commodore VIC-20. Operating program in ROM. SWL A receiveooJy cartridge...

Pjb

Transceiver and power adapter Combination VCR-monitor vustc Scan convener PGSC Ml charged to S H J il shjr.cd Shuffle DC power c w m sare m Photo 8 STS-58 Mission Specialist BitI McArthur KC5ACR made many voice contacts on 2 meters using the SAREX gear on the space shuttle Columbia in late October 1993'. NASA photo. 80- When a connect request is received by the robot, a QSO number is sent. If 1i gt e number is acknowledged, lhe robot will send a disconnect to the ground station and the contact...

Cor Repeater Controller

Features adjustable tail and time-out timers, solid-state relay, courtesy beep, and oca speaker amplifier kit 39 CWID. 0 ode programmable any time m he J eld adjustable tone speed and timer S59 CORComplete COR and CWID all on cne board. CMOS logic for low power consumption. EPRQM programmed specify caEI kit 79, w amp t S129 COR-6. COR amp Real-Voice ID on one board. Digital c records up to 20 seconds of your voice, using built-in or ext. mic. Can record multiple id messages Tail and time-out...

Dc

Whichever Pin I NOT Grounded Check With Ohmmeter Figure 2. Bias filament, and control circuit for 2m half kilowatt amp. or 4CX250R it should still work fine, but if they require air-coofing you'll need io make sure that the original blower chimney and ductwork are operational. I decided to make one initial change to the RF circuitry, I noted Lhat the manufacturer used mica chip capacitors to bypass the screen pin of the Lube at its socket, but used no further decoupling close to the tube base....

Motor Controller

Control the speed and direction ot any motor. Use our SMD-i for those nice steppers you see surplus, and our MSC-1 for DC motors. The stepper dnver features variable speed, hatl step rotation, direction and power down mode, can drive most any stepper motor. Our DC dr.ver features pulse width modulation control allowing full motor toque even at I A speeds and can drive motors up to 50 VDC 10 Amps Add our case sei for a prolessional assembly. SMD-1 Stepper kil 24.95 M SO-1 DC moto r kit S24,95...

Howes Radio Sidetone Circuit

BRINGING HIGH 500 southlake boulevard TECHNOLOGY Richmond. Virginia 23236 DOWN TO EARTH 804-794-2500 FAX 804-794-8284 The newest in the line of rugged spectrum analyzers from AVCOM offers amazing performance foronly 2,855 AVCOM'S new PSA-65A is the first low cost general purpose portable spectrum analyzer that's loaded with features. It's small, accurate, battery operated, has a wide frequency coverage - a must for every technician s bench. Great for field use too. The PSA-65A covers...

Kitchen Dr Po Box Carson City Nv

PRICES amp SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE OR OBLIGATION. E.O.B. CARSON CITY NV. NV. RESIDENTS ADD SALES TAX. Mv article called The Hows and Whvs of Coaxial Cable in the May 1993 issue of 73 created a lot of reader response. Some readers asked about low-loss 50 ohm coax, which is more flexible and easier to use than the popular Beldcn 9913 but still has the same excellent electrical properties. I've been using Bcldcu 9913 since its first appearance on the market about eight...

R

R17 - R21 5 750 Ohm, 2W, Carbon R2Z - R26 5 x 160 Ohm, 2W. Carbon R27 - R2 3 47 Ohm. 2W, Carbon Use Short Leads For All Figure 4. Station connection for 2m half kilowatt amp R17 - R21 5 750 Ohm, 2W, Carbon R2Z - R26 5 x 160 Ohm, 2W. Carbon R27 - R2 3 47 Ohm. 2W, Carbon Use Short Leads For All Figure 4. Station connection for 2m half kilowatt amp Photo C. View J mm under the power supply cltassis. Note the six high-voltage electrvlytics. The bleeder resistors are on the other side of the perf...

Xrl

Tuning components schematic detail. ly was cither tedious or impossible. My power supply allows portable operation for about 10 hours froin a single 6 volt. 10 amp-hour rechargeable sealed lead-acid battery gel cell . When connected to Lhe AC line it both operates the radio and chafes the batten. The receiver Figure I consists of an untuned pentode radio frequency amplifier, a triode regenerative detector, and a power tootle audio frequency amplifier Output is into a pair ol high...

Circle On Reader Service Caro

Who had given them a hard time, and seized the offending equipment. It went to court, and based on my written statements and deposition, the night manager ended up with a 2-1 2-year prison sentence, which was commuted to probation, They fined the phone company 10,000, and the taci manager was fined, too N6ZHZ credits ham radio with helping him ctevetop hjs RDF expertise. He began T-hunting three years ago. coukJn't find anybody to train me in the CAP, he says. Then I got into amateur radio and...

Communications Electronics

We're introducing new Uniden Bearcat scanners that are just what youVe been searching for. Order your Bearcat scanner today. on Uniden Bearcat 8500XLT, '2500XLT, 890XLT, LRD9000W1 ' ICekbrftif our 25 r Ji anni ve saiy wii h spcci a J shy in rsti iht sc aj men nivi I radii Ltacvlur fuund mi tlii id Tliii ampec muti bi iutludnl with ytnu I IprcfiJiiLl onrta. Cifjit cjirds uvd quality diitoimu ait achHM fioni-ihii H if r 0 f I r 1 v ii fLl only 00 ordrrs mailed directly lu Co 11 imuiiiwl jpji I...

Exclusive Dispersion Zoom

ITC SA Series exclusive Dispersion Zoom lets you zoom in on any Center Frequency signal, from any one of five calibrated Dispersion positions. Preset at gt 140 MHz, 50MHz, 10MHz 1MHz and zero MHz per division. The SA13Q0A displays greator then 1300 MHz on the screen at one time yet allows instant zoom to any Dispersion Scan Width as low as zero MHz per div. Allowing for total control over all Dispersion Scan Widths settings. 80 dB ON SCREEN 130 dB total Dynamic range 110 dBm Sensitivity. At...