Also Avahable

Baa-so, kw-il'vv'b, f ll m foi -144, folt fl, f022-AT F02 5,432, FOJ3 432, F022-44 Figure. Stock diagram of the interconnections for the T R controller Figure. Stock diagram of the interconnections for the T R controller Photo A A home-brew CW transmitter, solar-charged battery, and the Drake R4B receiver QRP heaven f Mine Bryce WB8VGE 2225 Mayflower NW MassMon OH 44646 Picking up where we left off last monlh, we'll finish up the T R controller, This month well look a how to interface the...

Info

Scan control modifications combine the logic of both the decoder and the scanner. other is used to add an external .speaker jack to the scanner. This provides a way ro feed audio to the decoder and to control the speaker line with the decoder. To add the mini-phono jacks, dril two Va holes on the side of the chassis, just below the speaker. You don't have to remove the PRO-57Ts circuit boards. You do have to use anti-static precautions. Be sure to discharge any static electricity on...

Raan

Arg Perigee Mean Anomaly Mean Motion Decay Rate Epoch Rev STS-37 JSC- 02 91098.6250 28.4632 240.1995 0,0006984 279.2831 332.4544 15,37981811 2.3E-04 1 See Philip's article Hams in Space in this issue Many of lis have had problems understanding he new microsat technologies and patting the hardware together to ensure success, I his is the account of one old ham who has achieved success through dogged determination and ihc old ham approach of trying sortie-thing until you find out what works....

All Items Are Guaranteed Or Sale Price Refunded

ICOM Yaesu FT-411E, Penta Penta 831SP-PL259 Silver Pfate (Am phenol), Sli.25 ALLGON 2M, 5 8 Mag. Mount Complete 525.00 Receiving 600 Ohm Headset, Cord Plug ., 29,95 .0015 iif 10 KV Ameco Books. Hi-Pass Filters Call 1000'sof Meters, Transformers, etc Call Copper Clad Epoxy Boards, 17 x 12 4.00 GAP Airwaves expands its Service to Include 2m and 6m with the CHALLENGER DX-V & DX-VI Unique MuHiband Antennas that Utilize the Patented GAP Elevated Launch Technology luttons l iiajrj * * luiluvin...

Preampufiers

A models give you more than 20cB gam with less Than 0 6dB r se Masi Mount KP-2 models hancfe berter than 16OW and In-Shack KP-Vs handle 100W of power. These Pre Amps are the best on the market for the price KP- Lut Price S111 00 ln-Shack Models KP-1M M KP-1 6M KP-1 2M KP-1 220 KP-1 4J 2fl 30 MHz 50-52 M Hl 144-146 MHz 220-225 MHz 420-470 MHz KR'2 LISI Pnce S156 00 M SE-Mourit Modets KP-2HOM KP-2 6M KP*2 M ll your dealer is unable to supply any oi our amplifiers or antennas, please call us at i...

Azimuth Communications

The new WealherStar Master Weather Station ALT6 will help you monitor weather conditions with functions that give you barometric pressure (in or mm), altitude. wind speed MPH KPH), wind gust record, wind direction (2 & 10 degree increments), daily and yearly ram (O.V increments), an optional self-emptying rain gauge, inside temperature (with alarm), outside temperature (with alarm and min max lemperature record wind chill factor, time of day (12 24 hour with alarm), and programmable scanning...

I I

F wrr 5. 3cm antenna and support assembly. Current technology in low-noise, high performance preamps uses GaAsFET i Gallium Arsenide Field Effcci Transistors) devices. SSB Electronic and Down East Microwave manufacture good prcamps. Later on in this anicle I II detail a home-constructed device that offers good performance at a reasonable cost. Since we have been working from the back end Forward, the last pan of the Mode S equation is the antenna* Among EME types, the parabolic dish is the only...

Warren Radio Peach St Erie Pa

JRS DISTRIBUTORS. 646 W MARKET St VORK.PA WHITESIDE ELECTRONICS. 54-5SALTS& USG ROAD PITTSBURGH 3A MEMPHIS AMATEUR ElEC m WELLS STATION ROAD. MEMPHIS. TN MU3 C CITY HAM SHACK. 310-B GALLITIN ROAD. MAQISGN. TN CT MOflOAN 3300 E AST 34'-i ST CHATTANOOGA. TN AUSTIN AMATEUR RADIO SUP. 5310 CAMERON ROAD, AUSTIN. TX GATEWAY ELECTRONICS OF TX. 9090 WES'PARK DRIVE, HOUSTON, TX ELECTRONIC PARTS OUTLET, 17315 H GHWAY 3, WEBST E P. TX ELECTRONIC CENTER iNC 2309 ROSS *VE DALLAS TJi CITY ELECTRONS SUPPLY...

Prcw

I T-A T F F IN'H LOV Pl C C _0SUR IIM'I. I T-A T F F IN'H LOV Pl C C _0SUR 1 12 V TC ISVGLT3 rifPEUOING J* nc _b ULiTh- & ACON POWhH C3N1HJL LDCifFL, '-EMOTE n. r AC FC EH EN SHACK RON OF ARi F ( JiV T ) FEED PECULATORS iH St AGO M A StMRI.v Figure 1. JO GHz beacon showing CWID'er and power supply Regutator modula* tor audio from ID 'er feeds to adjust terminal of regulator for modulation on input on regulator output voltage to Gunn oscillator, which produces high quality wideband FM...

Seal All Exposes

50 OHM PHASING COAX NO.fl 22' 3 ue LONG- Figure 3. Coax phasing details for the 4 quagi EME array. up Ihe difference in signal strength levels for EME work. Four good long boom antennas properly spaced, phased, and fed with 500 watts or more, will permit one to make man gt routine, random EME QSOs on 2 meters. The number of contacts possible with ueh a station depends upon operator determination and effort. What is the lowest power station that you can have and still hope for an EME QSO Well. I...

Kenwood Electronics Canada

P.O BOX 1075,959 Gana Court Mississauga, Ontario, Canada L4T 4C2 144 450 and 144 220 MHz FM Dual Banders Extended receiver range 136.000 - 173.995 MHz on 2 m 70 cm coverage is 438.000 - 449.995 MHz 1-1 4 m coverage is 215 -229.995 MHz, Specifications guaranteed on Amateur bands only. Two meter transmit range is 144 - 148 MHz, Modifiable for MARS CAR Permits required. Separate frequency display for main and sub-bandr Versatile scanning functions. Dual scan, and carrier and time operated scan...

World Wide Distributorships Available Please Inquire

In U.S. amp Canada Call Toll Free 800 221-0732 IN NYS 718 961-2103 - Telex 51060 16795 FAX 718 461-197 VERSATILITY MEASURE POWER FROM 2mW to 10kW WITHIN 5 OF READING. A handful of Bird s unique 7- eve plug-in elements and a 4410A series THRUL1NE wattmeter, lets you cover wide power and frequency ranges anywhere engineering lab, production floor, service bench or in the field. wattmeter is a patented, self-balancing bridge detecting scheme that permits fast, accurate readings from 2mW to lOkW...

Communications Electronics

Has expanded to our new two acre facility and World Headquarters. Because of our growth, CE1 is now your one stop source for emergency response equipment When you have a command, control or communications need, essential emergency supplies can be rushed to you by CEI. As always, for over twenty two years, we're here and ready to help. Our RELM twoway radiotransceivers were especially created for government agencies. When you need to talk to police, fire, ambulance, or state, federal and...

Rutland Arrays

Rutland Arrays has announced a new antenna. Model RA7-50. Model RA7-50 is a 7-element, 267 long, 50 MHz yagi antenna. It has a measured gain of 10.5 dB over a dipole, and matches the performance of other antennas measuring as much as 7 longer. The sidelobes have been lowered to 22 dB below the main lobe andi the FIB ratio is 30 dB ai 50.2 MHz The design features stainless sieel eiemeni hardware, extruded aluminum element mounts, a T-match driven element with silver-plated, Tefion'h-insulat-ed...

Circle On Reader Service Card

Just fill out the Reader Service card and send it in, You'll receive free product information from our advertisers, and one lucky reader will win a great prize from ICOM. ICOM s expertise En miniaturization has resulted in another remarkable handheld, the IC-2SAT. t The fC amp SAT delivers a full 5 watts of output power at 13.8V DC. k Built-in NiCd Batteries When the interna batteries are exhausted just clip on one of the optional battery packs and keep on operating Each memory and call channel...

How To Enter

Eme Array W5un

Visit your local participating amateur radio dealer and fill out an Official l .mry Sur i Only one entry per month per person Duplicate entries will be disqualified lt nce cver gt month, we will pick 5 names from even- participating retail outlet. One of these lucky hams will receive that month's pri e package, but all of them will be entered in the Grand Prize Drawing, to he held in April 1991. Yi gt it you local retailer every month to check if your name is on the Ham It Vpl rote Board, which...

Fm Stereo Transmitter

The author modified the Motron Auw Kall AK-4 to .solve two common problems. Inexpensive, wide-frequency coverage scanners have been developed into valuable tools for the amateur radio operator. There are, however, two drawbacks that keep them from reaching their full potential. Hirst, when you're scanning a number of busy repeaters and simple frequencies, and Ben and Ernie lie up one repeater, your scanner will most likely be stuck there, If someone tries to call you on another...

Ft

Generic FM scanner block diagram receiver. 11you have a sweep generator, you cun set the bandwidth to 22 kHz, and adjust the IF transformers for flat response over the new passhand. If you don't have a sweep generator, do not despair. Get a 2 meter handheld and run it into a dummy load near the scanner Since every scanner I have seen thai covers 137 MHz FM also covers 2 meters, you can use the HT as a signal generator. Program the handheld in kHz steps to 144,500 MHz through 144.550...

Sarex Ii

The launch of the Astro mission marked the beginning of a new series of SAREX Shuttle Amateur Radio experiment flights. The primary mission of this SARFiX was to communicate with a number of classrooms across the U.S., is well as to provide hams worldwide a way of directly con necting up to the Shuttle via a packet radio robot. In addition. Ron recommended trv ing.ship-to-ship contact between Columbia and the Soviet space station Mir. He said, The idea came to me some time ago. just because...

Krp Repeater

Word is spreading fast- X 2 METERS-220440 Nothing matches the KRP-5000 for tot amp l performance and value. Not GE, not vm Motorola. RF performance really counts in tough repefltGr environ-ftiMits, the KRP-5000 Jeceiver gues yoL 7 heUcal resojia'ors. t -poleSof IT filler mg irvJ a p reose Schmitt trigger squelch with automatic threshold switch-I rig The Ira remitter gives Enjdy hiqh performance operation with remote piogrammabtl- ty, sequential tone paging atitopatcn, reverse aniopatch,...

Xlu

1275 North Grave Street Anaheim, CA 92806 714 630-4 541 fAX 714 630-7024 in a favorable sky position Activity peaks when ihe moon is within common vieu of both Europe and North America. Random activity can be found from 144t 00 MHz to 144.020 MHz. Schedules arc run between 44.020 MHz and 144- 1 H MHz. Single sideband voice is sometimes heard on 144,105 MHz. 1 usually operate CW on 144,008 MHz during such times. and also on weekdays after work. Many CQs are called by myself W5UN, and Olivers...

Tioin

IC-475K Most stations running about 25 watts and up on AO-13's 70cm uplink for Mode Q were S-5 and above on the IC-970H's 2m downlink receiver. Similarly, stations using 2m on the uplink for Mode J and running about 25 watts or more, resulted in downlink signals in the range of S-4 to S-5, Stations using near 75 watts and up were producing S-9 signals Please note that your signals may vary due to the gain of your antennas and loss in your transmission line, and the current squint angle of the...