Radio Amateur 05-1993

Video Switcher

W & 5 System Drj o Wesiinghous i * VCM 200 T The VCM-2001 video comrol module atfows you to record from H cable converter ar otiier program source while waicning regjiar TV or you can retara from TV whi 9 wafctLig cable o o her spuree To ho h-up and operate, the front panel has 3 soti-touch pushbuttons and LED indicators. Elim nales the need tor cumbersome atid ci ffident rr e' charicat A0 swilcnes and spitltjr 9 X 5 X 2An CAT u VCM-2 Q1 Si9 95 each

Miniature Preamp

MO-202 FSK DATA MODULATOR Run up to 1200 baud digital s'gnals through any fm transmitter with full handshakes Radro link computers, lelernetry gear, etc. . . kit 49, w amp t 79 DE-202 F9tt DEMODULATOR For receive end of link. kit 49 wSl 179 9600 BAUD QfGFTAL RF LINKS, Low-cost packet networking system, consisting of MO-9S Modem and special versions of our 144 220 or 450 MH FM Transmitters and Receivers Interface directly w th most TKC'S Fa amp t diode-swftched PA's cjtpul 15 or 50v Unlicensed...

Connect Systems

The new CS-900 from Connect Systems Inc. is the first low cost VOX (voice-activated) simplest phone patch to incorporate powerful standard features such as a ha if-second Electronic Voice Delay (EVD), a built-in programming keyboard with digital display. a 90-memory speed-dialer, last number rediai, call progress tone detection, a user-programmable CW ID, and more. The CS-900 is totally VOX operated and does not use sampling. There are no sampling noises or interruptions Just smooth natural...

Utmost Modification Bible

EVEN MORE COMPLETE a*. a are PRfOiCU_i'i o uoomcAncn (Wflis. OHM < K r l aVJUltS SdNWKDtOlllCJH OvtFJ > l*Mft*0tOfci00*PCAT10MS TEN ft corf c* rnx-- nMta sooiatic Dts 0 OVtH POO M N VWflWO GOUTS. jftJ-iTE NNA rm.* Ob GAIHflL0& > LX SIOI ChAHTG ., . _ _ 5 PINE MEADOW 29,95 CON ROE, TX 77302 citfXKOPMo ofiLXH UHF VHF Antenna Power Divider Kits Tower Mounted Box Kits Dipole Hangers Other enclosures Charles Byers K3JWK 5120 Harmony Grove Road, Dover. PA 17315 Phone 717-292-4901 Between 6PM...

Coaxial Cable

How to select the most appropriate kind for your need. H ams have used coaxial cable for trans .mission lines almost since its invention nearly 50 years ago, but many don't know why or how ihis trend started. Although much has been written on the subject, I'm frequently startled to hear so much misinformation chatted about on the ham bands, even by oid-timers who should know better. Perhaps this article will help newcomers and old-timers alike clcar up misconceptions and make more educated...

Tiie Icom Icwa Dual Band Handheld

N.E. Bellevue WA 98004 Telephone 800 999-9877 Price Class S500 It never failed. No matter which rig I happened to have at any given moment, all the action seemed to be on another band If I had my 2 meter HT, I would miss my normal commuting skeds on 440 MHz. Yet whenever 1 had my 440 MHz HT with me, 1 would always find some need to get on the more heavily populated 2 meter band. The thought of carrying around the extra weight of two full-size handie-talkies...

Atv Equipment Sources

Advanced Electronic Applications, Inc. AEA RO. Box C2160 2006 I96tfi SL.S W. LynnwoodWA 98036 800 432-8873 brochure info Complete ATV transceiver VSB-70 and accessoriesi 800 -4 - A-H AM -TV or 800 424-2688 t30 Emmett Ave. Madison TN 37115 615 868-4757 Complete ATV transceivers down-converters both AM and FM, 1275 North Grove St. Anaheim CA 92806 714 630-4541 800 962-2611 Antennas, omnt-verticat gatn and yagts. AT Vdowncon verier kits, power amps. Down East Microwave RR 1 Box 2310 Troy ME 04967...

KENWOOD

PB-8S 12V 800m a h S59.00 PB13S 7.2V 12G0mali 49 75 PB-25 26S 8 4V SOOmali S65.00 Mar jfac jreCl in The U.5 A Aiir iriichod cells, frcstt Super P.kr s tifatjfe short circuit and csvercrarg pnrtecban, andci 12 msntti wjrranty All irrsnrts and packs in stock or avertable horn aythor ed dealers CM L US ro ISCUSS VDUR BATTERY REQUIREMENTS. Ac J W 00 S 5 H FOR FJRST BATTERY, SI JJO FOR EACH ADD L BATTERY - U S 0 gt JLY Connecticut residents add 6 tax I n Connect cut 203-264 3985 FAX 203-262-6943...

Circle On Reader Service Carp

Michael J, Geter KB 1UM c o 73 Magazine 70 Route 202 North Peterborough NH 03453 This month, I'd like to address various small topics which keep cropping up, bul none of which warrants an entire column by ilseit. First of all. nickel-cadmium batteries IVe written a fair amount about them, and I've seen various contradictory articles. Frankly, ll'm getting sick of the whole thing. Some say the memory effect exists, some say it doesn't Some say that dischargers are a bad idea, others like them....

Spy On The Earth

See live on your PC what satellites in orbit see Learn how you can benelit greatly from this exciting new technology. Send 30 ( 35 air, 40 overseas) for our fantastic 12 diskette set o) professional quality copyrighted programs (IBM type) that does satellite tracking, data acquisition, image processing, file conversion and much more. Diskette and information package includes all programs, sateHite views, C language source code tor a popular satellite image acquisition program, hardware...

Call Us For Free Catalog

For your PC Compatible, Find Hams by Callsign or Name. Browse thru calls. Full export by QTH with custom output. Alt U.S. and Canada Calls, ideal for mailing lists, QSLs, etc. Uses 16 MB Hard Disk. High Density Floppy (1.44 or 1.2) required for instaN. Updates and options available, interfaces to LGGic, Log Master, HyperLog and others Derno disk S3 00, County Cross Reference Option adds county to address info. LooKup or export all Hams in a county. Only 7.50. 3> jy,yt) Scut 3. Lacevs Spnng AL...

Hf Linear Amplifier

1 kW No-Tune Power Amplifier 48 MOSFETs Single Ended Push-Pull SEPP Design BuiltJn Automatic Antenna Tuner High-Efficiency Switching Power Supply The JRL-2000F is the world's first MOSFET HF linear amplifier, high-speed automatic antermrr with memory capacity of 1820 cha designed using the same high technology found in JRC's professional high-power radio transmitters. Featuring a heavy-duty power amp that incorporates 48 RF power MOSFETs to ensure low distortion and clean output up to 1,000...

Ming Communications

Communications La Creseenta, CA 91214 - - Tel (81 8) 249-3 06 *' mino Fax (818)248-0840 every time you use your PTT. With the use of the AUTO-ID's built in speaker* you can monitor the message that the AUTO-iD is broadcasting, regardless of whether the selected message was broadcasted automatically or manually. The AUTO-ID comes with plugs for an Alinco or Kenwood mobile amateur radio. There are accessories available to interface the AUTO-ID to most other types of radios. L'p to 5 separate...

Model

I r v i f lp irfiiin on 5 friirt. offl Figure 3. Preparation of the transformer coax. Cut ihe transformers to the lengths shorni, and strip the outer conductors. The inner leads that are to he 5mm should have their outer conductors stripped 6mm and the leads that are to be 10 mm should he stripped JI mm. Then strip the insulator thai goes between the inner and outer conductors t leaving I mm of insulator as shown, which will leave the inner conductors hare at the proper lengths. stantly-...

Full Duplex Interconnect

The CS-800 will operate Full or Half duplex and also has a built-in Repeater Maker. The two transformer hybrid provides superb trans-hybrid isolation. The only required connections are to the Mic and Speaker jacks of your band transceiver. CS-900 STANDARD FEATURES V2 Second Electronic Voice Delay 90 memory speed dialer Redia Singie or multi digit access codes Toil Restrict Buift-in programming keyboard and display Regenerated tone or pulse dtalout Remote base mode Land to mobile selective...

Qrp Wattmeter

A wattmeter designed specifically for the QRP operator amp builder Measures forward amp reflected power at QRP levels Select from three full scale power levels 10WT 1W or 100mW Large easy to read 2 meter Low current drain meter circuit uses 9V battery battery not included Align with a digital voltmeter. Source of RF not required Measures HWD 4 1 2 x 3 1 2H x 5 100 complete kit less battery including cabinet, all components and instructions Michigan R -iieJ nt . Add 4 Stat S flea Tan Mon,-FrL...

Kawa Productions

Oecfc or money order only We ship an orders within 10 days. Outside U.S.A. please add 52, for air mail MA residents please add 5 sales tax. Manufacturer* f Quamy Communie ai i ans Equipr enl Manufacturer* f Quamy Communie ai i ans Equipr enl g E S E f wTH T> KUCWp FTJCVPF , i fluja W-Cn WOULD ft CLUO A COMPJt* MKE-.F. TOHkSIW1 Ton 'BOHT M tr i OCJT J U. t- i* T -I*t EXroUMSKW AU HOU5EU IN AN CKTREMEL* RUGGED. NCUDS 0 M imTAflLE Standard and Computerized...

Mhz Ht All Mode Hf Transceiver

436.95 449.95 611.95 989.00 772.95 302.95 1087.00 1000 S. BASCOM AVENUE SAN JOSE, CA 95128 French city, near the Spanish border, Ihe streets were noticeably brighter during the pass, as seen by several town people, Shortly after it crossed the day night terminator in Europe, the solar sail was released from the Progress The sail then test altitude until it re-entered the atmosphere on the 7th. Certainly this ranks as one of the more noticed Russian CIS space experiments In recent years (Glenn...

Circle On Reader Service Card

Have your own repeater or link system I aiy repeater setup tlhout Fin -.liflc Linr m your red ro car sin j piUp in uinl jin Ul'llI for k'nicr ntv or fioiULhl mnhilc njpcjtcis The ilil-Z worki Hviifi any rcisivcr(iw sinner) urtd ANY iraiw-inincr Super scnsiUvQ VOX dporjiinn makes setup huilL. Hji p JL J i iiriiTi ui in-iwdui imeffjcc for Clejfl jLkJio OnI A 3.3' x ,r skI choitx oi 12 VDCor9V hwicf pepper lo-ejv sp irv hen ORUi S O. r.T rm mtm feU-1 Dl-Al -L rh zor --* J . . - - P QMDU r-H 7 lit...

Antennas

Carr iJesign* build* ninthly, jik) n-stjll your own antennas, 2 t.5il by Wiltiiim thr Cornprehoistvc coverage of ami-teur comrtHtiiiciiiions, tll_5ft by William Orr arid Siwrt Cm un J rryihmj ytu need ti> know about beam design, consiniclion* jjhI Operalittn. SI 0SV11 The Basic Guide to VHF UHF Ham Radio by Edward f. Noil llovides a first rate bt-1 induction to the 2.6 anil 1.25 mcict bandv well as 23H 33, and 10cm. 50 20N019 UU& Repeater Mapboofc by Wittiam Smith NtiMQS The...