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-...

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...

BNB

RADJO REPAIR Amateur and commercial professional work. Fred Fisher WF9Q, 6866 W. River Rti South Whitley IN 46787. (219)723 4435. BNB930 AMIGA, MACINTOSH, ATARI ST XUXE Amateur Radio and electrones PD software. 4.00 per disk Send 2 stamp SASE for catalog. Specify which computer KD-WARE, Box 1646. Orange Park FL 32067-1646. BNB965 PRINTED CIRCUIT BOARDS for projects in 73H Ham Radio, QST, ARRL Handbook, List SASE. FAR CJRCUJTS, 1 8N640 Field CL, Dundee IL 60119 BNB966 WEATHER INSTRUMENTS Digital...

Frequency Counters

CT-90 3 DIGIT 600 MHz CT-125 9 DIGIT 1.2 GHz msey Electronics naa been manyfari unrig otec-ittrc lesi gear tor over 1 Dyoara and ia recognized lor i Lab quality p'Oflucts a I bruaJiUirBugti prices All ni Jf counters carry a full one-year w rraniy on pons -< J 1 aft . We lake gTtat p'.ae m t > ng Ihe largosI snu'deljrer g 1cfw-coii rountors in sl> e enirra S A Compare i< ieofcar ns. Ou* counters arerji-talofsd. fro audio lo UHF. *nth FET high Ipedanoe input, proper nave shaptrvs arajtry....

Raqll

Parts locations for the KBGTTS beacon transmitter. All components except C10 are on the front side. SiO each from KBGTTS. Ken is not sefiing parts kils. but he wit build complete transmitters to order as hjs spare time allows. For information and prices, send a self-addressed stamped envelope to Airtek, 2306 Turquoise Circle, Chino Hills. CA 91709. tf you're into flying models, ask tor his info sheet that gives tips on aircraft transmitter mounting and retrieval techniques As usual,...

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...

Sma

Discone antenna 800 MHz to 4 GHz, 74 73 Amateur Radio Today* May, 1993 Their problem Is related to the operation of many different types of 2 meter HTs. all operating in close proximity to each other on different frequencies, causing desense to each other Since most ol today s newer radios are quite compact and capable of operation or wide bands of frequency, this type of problem is common. Some form ot frequency limiting ss necessary to prevent the excellent front ends from being...

Call Or Write For More Information Down East Microwave

8il Olson, W3H T Box 231 O RR T Troy M 0*387 J T fl Switching available, ill 13.B V0C Some available irs k Eorm Low No**e Pre amps & preamp kits 432. 902. 129G. 1691.2304 r 2401 3456 MHz, 5.7 and 10 GHz 33LHA pnsantf fi BNF 902MHz 131V 95 Z3LNA pn& np 6t NF 1296YHZ '3flV 95 I3U4A prearap 7< t8NF 13 0V J13G 1691LNAWP pfeamp 1 dB MF 1691 Wrn mounted 138V 1140 4017LNAK preamptot 400-1700 MH ,6 dB I 40 Preamp Ms lor 23Q4-10 GH i Write or Can

Icom Icwa

Continued from pas*e 39 dead, giving virtually no warning whatsoever, When the battery finally did run down, the only warning was a howling or oscillation in receive mode or a transmitter which cycled on and off if ihe PTT Key was pressed. Once either of these events occurred, there wasn't enough juice left in the battery to even sign off On two occasions J was unable to shut off the radio with the power button (which ties into the CPU and is not a hard-wired power switch). The only way to get...

O

With the ready availability of ail kinds of chargers, you may well wonder why anybody would bother to build one. One good reason is that by adding a few things (like a timer, a latching relay, a constant current regulator, and provision for adjusting both the charging and trickJc rales) you will have a truiy versatile NiCd charger. It will (1) satisfy a wide range of current requirements 2) automatically switch over to a trickle rate at the desired time and (3) charge any number of cells, from...

Htl

Bolting the amplifier parts together* Note that the flanges of the output of the power transistor have to be bent upward. The output of the transistor can short to the bottom of the circuit board unless a small part of the bottom of the board is etched. See Figure 2. Be careful to make the input and output connectors touch on the circuit board. or the amplifier may not work at 225 MHz. Solder the inputs and outputs direc tly to the foil of the board without using lead lengths. A BNC...

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...

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...

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...

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...

Yaesu Icom

C2f3t4 AT CQ2AXf2 RA IC 4GAT 24AT lCA2lflJl amp TS450S AT, F SOOO, TS-05OS. TM 241 A 441A. TR-751 A, Kenwood Service Repair, TS MOS. TS690S. RZ-1, TS-79 A. TS amp amp 0SD. TB-7CA, TH2 amp 40A. TM- amp 41A, TM-74 A. TM-732A, TM- amp 41A MARINE RADIOS ICO M M 7. M J1, MS6, M700TY, M800 AVIATION PORTARLE ICOM A 21 MOTOROLA MARINE KING KX 99 BuftngAHT. Products FLUKE 77.13.85. gt 7 Uuftimttfi Patches telephone calls from your radio lo phone line. Greal for making and receiving phone calls where...

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...

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...

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...

Info

If you're too jog tor at snWv na that can out aeiorm me GLiefS att ivt you tte xty you re okjfig Tor a GAP. The CiiaJ r er OX-VIII is toe revolutionary design that answers your demands Tor multi-banti operation and unequalert eflicwncy with low noise. This Is the technology Itiat elmrnates Earth loss GAP vers fiom ai elevated teat y0lr pedoesr disapprar ma the puurti M t up. Torn i or No tuning Ho frustrate GAP tfetivi s everything out the hassles, And GAP delivers it a Iractlan of ihe cost of...

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...

FPE

Cables denoted by an asterisk n are commercial cables and not quailed to any mfriary specification. V.F. Velocity Factor of propagation. Not an important parameter unless caitfe is used in a tuned circuit, stub, trap or filter application or used as a precision phasing line. AUenualion figures are plotted for 50 MHz through 1260 MHz only, as most cables have very little loss per 100 leet at frequencies below 30 MHz Dielectric type codes PE Polyethylene TFE Teflon FPE foam cellular polyethylene...

Microwave Transverters

SHF 1240 Complete Transverter SHF SYSTEMS No Tune linear transverters and transvener kits io 902. 1269, T296. 2304.2400. 3456 MHz. All tisn 2m Lf.g13.QV. Kits indude mite and L 0 P.C boards. Ktal and all components Bui units incijoe I.FJD.C. switchboard, oonweto and compact low profle housmg Otter iTequancy options in amaleur band avariaite SHF 900 902-906 MHz 5QmW Buih 265 SHF1J40 1296-1300 MHi IDmW KitSl49 But 265 SHM269K 1268-127 OKirtt c LIDmW KrtSHO BuiitS255 SHF2304K Z3G4-23G0Mm 10mW...

MFJ

New MFJ DC ftjwer Outtel saws you space and money. Hook it to your 12 VDC power supply and get 6 DC otfjets for connecting tfXJr accessories. Pf bypassing keeps RF out of paver s pfy from DC line outlet. WhtiktiPk h. B 494 Mes 3S MS'39762 m 323-5a FAX m 323-6551 THEC 53 4590 MFJ STW One year unconditional guarantee 30 day money back guarantee less s h on txdera from MFJ Aid 600 each s h FRE ciatog MF . , . making quality affordable loss, which occurs at 70 olims nominal, and the highest...

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...

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...