Canada

Canada returns to 73 International after an absence of nearly three years. . but was welf-represent* ed during that period in other parts of the magazine. Our new correspondent, VE1CBF( would like to know what readers would t j ' ,i i1 J T-' -. .V l - 11 r._i like to hear about. Let us know here at 73 (mark for International Editor) or, if you write him directly, send us a copy of your tetter so that we can know, tool Time and space constraints for this issue made it necessary to pass on only...

Antenna System

ICOM presents the AH 2 automatic antenna tuning system for its HF transceivers. The AH-2 is ideal for mobile operators since there is no manual antenna tuning needed ,an advantage in inclement weather Also, the AH-2 system enables auto tuning in areas where antennas are limited, such as apartments and condominiums. combines advanced matching techniques and rugged construction for indoor or outdoor use to match frequencies from 3.5MHz to 30MHz. The system includes an antenna element, and the...

Upgrade Amateur Radio License

Let your computer test you before ihe license examination, FCC Amateur License Pool Questions, Complete multiple choice answers. Computer generatod questions. Keeps running score (percentage) so you know how well you are doing, User fnendfy. For IBM PC XT AT and PC look alikes11 using DOS 2,1+ also Apple IK lleh & lie having 120K of memory using ProOos or Each Sold Separately. Add 1.50 for shipping & handling. Phone orders - Visa MC, Jllinois residents add 7 sales tax, Box 48301...

Wwuz

The straight ciiop on how to build a transistor amplifier, complete with a free Basic program W6WTU No Free Lunches Siep into the middle of a raging debate can we get energy i'rom Figure out what frcquenc) everyone is using for subaudible access on their repeaters* Endorsed by the Radio Police KE6VK Work on your weigh while you power your station. . WA8WTE 73 Annual Holiday Shopping Guide Staff I lead-to-He ad 220 bricks Alinco's ELH-220GF versus Mirage KLM's C22 Another brick for the wall Dick...

Day Moneyback Guarantee

You may order nv GARANT i DTrap Dipofc and GARANT GD-Whidom Dipolc. unv GAB ANT GB -Beam, or an EMOTATOR 105TSX. 502CXX or 1105MXX, for a lO Jay no risk inspection. Hijve a look Jt them in Ihc privacy of your home and if you don t like what you see return the item pre-paid to our warehouse. We'll refund the full purchase price less shipping chargcs. We trust in whal we sell GB33DX J399 + ASK GB43DX 1525 CB + 7 il 49 TD200SfS 1J27 TD 200VHD 5137 TD 1W S 57 GD- SOOW J W G& & 2KW U99 GD4...

Richfield Mn

The Twjh City FW Club will sponsor the second annual Hamfest Minnesota and Computer Expo on November 1. from 7 30 a.m. to 3 p.m., at Richfield High School, 7001 Harriet Avenue South, Richfield, Minnesota Admission is 3 in advance. 4 at the door. FCC exams given Tafk-m on 16 76 For more information or advanced registration, send an SASE to Hamfest Minnesota ana Computer Expo. Box 555. Minneapolis MN 55440, or to Lyle Vogt KAflUDL. 5130 Willow Laner Mirv neionxa MN 55345 The Afford Memorial ARC...

Pole Filters For Kenwood

8.S3MHZ IF for TS12Q through TS940 Reg, 560 Bandwidths 250, 400. 1800, 2100, 6000Hz Cascading Boards (used with 2100 Filter) for TS430S - 20 TS520S 15, TS320S- 15 455 KHz IF tor TS83G 930 940 - Reg -Si 10 Bandwfdths available CW 400 Hz. SSB 2.1 KHz. NOTE Do not hhex with 60 units for discounts. Matched-Filter Pairs for ADove - Reg. S170 ea, (8 83mhZ and 455KHz) SSB 2100, CW 40QHz. Super-Special One pair 140. Two - 260 3.395MHZ IF for TS520. TS511. R599 - Reg. 560 Bdndwidths Avails 250, 400....

Icom Kenwood Yaesu

1351 State Road 84 Fort Lauderdale, Florida 33315 Exit-27 on J-95, then go aflO Mile East DISCOUNT FOR CASH BROWARD 305-525-0103 -w DADE 305-944-3383 Sometimes a litHe more power is all thai you need 10 access a distant repeater or to make that DX contact How about a lot more power say to Watts or so for 10 Watts in Need more mobite power with your hand-held Would 43 Watts out for 2 Watts in make a difference If you're willing to save a few bucks by spending a few hours with a soldering iron,...

Hel Sound

The Heil SS-2 system contains two 5-Watt amplifiers, a 3,5 air-suspension woofer with an 8-ounce magnet, and a 1.5 hard dome tweeter. Unlike the usual MhMT speaker wh ch has a crossover of about 7 kHz, the Heil SS-2 crossover is at 1.5 kH2, right in ihe articulate range of an SSB signal. The amplifiers have a 4 dB gam peak in the 1.5-2.5-kHz range to give extra punch to the audio The HCS Headset Control System from Heil is designed for the serious radio operator The HCS is made up of the BM-10...

Advanced Computer Controls

The RC-850 and RC-85 repeater controllers offer the advanced high-performance features that have made them the standard in amateur repeater operations With the new ACC Digital Voice Recorder, repeater users can record voice messages for each other in a voice mailbox, and atf of the repeaters1 IDs and other messages can be stored. The ITC-32 tntetii-gent Touchtone Control Board provides extensive touchtone remote< ontrol capabilities ACC's ShackMaster multiplies the value of your home station...

Palomar Tuner Tuner

Palomar Engineers have announced their new Tuner Tuner111, which connects between The Barkers Williamson PT-2500A linear amplifier. your transceiver and your antenna matching unit With Ihe Tuner Tuner you can adjust your AMU without putting a signal on the air. The built-m 50-0hm noise bridge gives an audible null when the tuner matches the coax line to t 1 swr For more information, please check Reader Service number 273. Pac-Comrn is manufacturing packet repeater controllers designed expressly...

Packet Radio

Enhances your TNC lt o you can enjoy Packat Radio Split screen display 10 separate, tend and receivedata, full Macintosh Us r Interface. TNC Commands and Parameter on Routing file far diglpeater routes. FHe transfer using Session Layer protocol. Free upgrades for one year after purchase. Packages and supported TMCs Mac Pack n l T A PR t er n gt 49.95 oc-1 v a h HFC available riom dealers or from BHncomm Technology 3155 Resin Street Marietta, GA 30066 rruidfi-.n Mhl j-pn-rTiTTJil-r ilatr itn rj...

Push On

TU-4C two frequency CTCSS tone encoder KPS-7A fixed station oower supply - MA-4000 dual Dand moDile antenna with duplexe a MC-55 8-pin mobile mic witn time-out timer SWT-I SWT 2 2 rn 70 cm antenna luners SP-40 compact mobile speaker SP-50 mobile speaker Complete sa vk o manuals r e available tor all na Kenwood imn ceivers and most accessories Specification jnd prices arc sufr ecf JO Change Witt out not- e Of obtrgalion j4nierrra rrag mourir is nor Kenwootf suppl a

Synthetic Textiles Antenna Rope

Due to the constant urging of a local ham, Synthetic Textiles has developed a special double-braided Dacron rope for use in antenna installations. The rope is available in three sizes 3 32 -. 3 16H. and 5 16. The outer braid is color sealed black Dacron for resistance to ultraviolet light. The rope unties easily even after years of use and is easily cut with an electnc hot-knife included with every spool . For additional information, ptease check Reader Service number 266. The Barkers...

Info

- Frequency accuracy, 1 Hz maximum - 40 C to 85 C Tone length approximately 300 ins. May f gt e lengthened shortened or eliminated b changing value of resistor 426 West Tafl Avenue, Orange, California 92667 800 854-0547 California 714 998-3021 J. L Rernhartz did not originate the feedback circuit shown on page 68 of your September issue f Kit Corner Build a Two-Tube Receiver7' . The first article cover ing the use of a fixed ttckier for feedback and a variable capacitor for ease of control was...

Free Tool Catalog

Free Catalog Radio

A free catalog of tools and test equipment is available from Jensen Tools. Inc. Illustrated in full cofor, the 160-page catatog contains more than 1,000 items of interest to electronic service tecl nicians, students, and electronics hobbyists. Two new sections feature sup plies and equipment for fiber optics and wire cabie systems. An expanded line of circuit board equipment includes breadboard kits, cutting tools, drill sets, insertion extraction tools, and test cables. For your copy of this...

Traccmos Keyer

The Trac Electronics model TE14- is just one of a full tine of popular electronic keyers. The TE144 65.95 is a state-of-the-art CMOS keyer with self-compfetmg dots and dashes, dot and dash memory, iambic keying, and speed, weight, tone, and volume controls. The keyer has its own sidetone and an internal speaker, and a rear-panel switch to allow semiautomatic or straight keying. For more information on this and other Trac products, check Reader Service number 255. MicrocratVs Code Star CW RTTY...

Receivers

The first three months of this column, of which this is number two, have one feature in common there has not yet been time for reader input as to what subjects you would like to see discussed When reader input gets thin, or nonexistent in the case of the first three columns, I will fall back to the safe1' strategy of discussing something of general interest. For this month, the subject will be receivers. I might have started with antenna systems, but in the case of the VHP frequencies where...

Converters

MMC 144 2B-HP 2rn GaAsrET MMC432 2B-S 70 Dftfln I j inri. MMK 1236 143 23 cm Do fi to 2 m NORTHEAST ELECTRONICS SUPPLY CO,s INC WHITEHALL PENNSYLVANIA V t i J 40 miles north of Philadelphia Amateur Radio Supplies Surplus Components Electronic Equipment MMC 435 600 1 cr Bf Conv amp rJer MTV 435 20 WaM 70 cm xm r C4 L. FOf CATALOG AMD 05 Afi TJT Md flrC i .it SJ CT TO CHAHGE nmour A VhI VC -W-'tCE

The Allbander Dipole

The perfect match for ahtenhatuh k 'th a lal ju ced o jtf .7 the perfect match for ahtenhatuh k 'th a lal ju ced o jtf .7 Completely factory assemDied ready to use Heavy 14 J 22 gauge stranded copper nrenna Center 'ed nh 100 fee of Jow loss PVC i.ovefed Includes center insulator with an eye took for includes custom molded msoiaior rflDkte J q' quality material with high dielectric qualities and e ce ient weatherafrilty Compie e nsiaiL Non inslructlohs mcEudM Overall lengtn 135 feet, less whe...

Scooter Surge Protector

Ohm Electronics has introduced its new Scooter' model SF-100 Guard-It smgle-ouUet The Girard Protoflex-lll printed-circuit system, The Girard Protoflex-lll printed-circuit system, surge protector This 125-volt. 15-Amp line-protection device plugs into any three-prong wali socket and glows to show that it1 s protecting your equipment against voltage surges- Use it to protect ml crocomputers, monitors, VCRsh radio gear, stereos, and so on. Suggested retail price is 9,95. For more information,...

Military Technical Manuals

For old and obsolete equipment. 60-page catalog, 3. Military Technical Manual Service, 2266 Senasac Ave . Long Beach CA 90815. BNB045 MARINE RADIO Marconi Canada CH-125 synthesized AM SSB transceiver. 22 channels on 4 8. and 12 MHz, 125 Watts, 12 V dc Never used, listSi ,995, asking Si ,495. Perry Donham KW10, 70 Rte. 202 North, Peterborough NH 03458. BNB047 HAM RADIO REPAIR. tube through solid state. Robert Hall Electronics, PO BOX 8363, San Francisco CA 94128, 408 -729-8200- BNB219 QS Ls to...

Itc H

Listen forYaestTs FT-787GX everywhere you might hear it HF, 6 meters, 2 meters and 70 cm. Youil hear operators calling it the ideal HF YHF UHF base station for small iiam shacks and apartments. And they'll rave about its full-featured performance and highly attractive price. You see, the FT-767GX continues the price performance tradition of our popular FT-757GX. But with even more features. When you're ready to expand beyond HF coverage, just plug in optional modules for 6-meter, 2-meter, and...

ICOM

Other Accessories - continued Regular SALE fiC-4 World CfocMCIoseout 9995 59 GC-5 World clock 9195 -merer VHf Portable Regular SALE IC 505 3 low 6m SSB CW portable 54900 489 BP-10 internal Nicad b rtery pact- 89.00 BP-15 AC EX-24B FM LC-10 Leather VHVUHf lyase multi-modes Regular SALE JC-551D SOW 6 meter SSB 799 00 699 BC-10A Memory jack-u 9.50 IC 271A 25Y, 2m f M SSB CW 35900 759 AG-20 Internal preamplifier 64 00 IC-271H LQ0W 2m FM SSB CW 1099 00 969 AG-25 Mast mounted preamplifier.,, 95.00 IC...

Model Pta Linear Amplifier

The Bori lt er amp WHIIamson PT2 500A Linear Ampi h fier is a completely setf-contained table-top unit designed for contirnjous SSB CW RTTV AM of A TV operation intended to coverage of all amateur bonds between V8 MHz and ' 21 MHz it can oe ieodii modified for fte-auenctes ouiSKje the amateur bands for commercial or military application Two type 3- 500z glass en ve lope Iriodes r gt ravide re to bi I ity and rapid turrvon time Pl-netwarti input for maximum drive Pressurized plenum cooling...

Has Them

CALL ME WRITE ME SEE ME 516 293-7995 For my prompt. At one of the world s largest Manos Darkadakis SV1IW Box 23051 Athens 11210 Greece In my column last January, I have told you of some of the problems we often have with illegal operations from Mt. Athos, Now I am going to tell the legend of Mr. Frank Turek DL7FT and his efforts to put this rare country on the air This year, as fn 1985. he wasn't even inside Mt. Athos lerntory but operated from somewhere outside as usual. Of course he says...

Cra

VISA and MASTERCARD accepted- pur hAse priki includes antenna, fecdli tic nd mount of your ehoioe-.tJdjiLHhnal irtounls are S 15.00 each amp iZ 0D fnppinp - hin ordered sep-intdyl 2S lm on St BtifliiP NY 14110 7111 tw J7t6f Marc L Leavey, M.D. WA3AJH 6 Jenny Lan amp PikesvMeMD 21208 am a bit confused this month because the honorable editor of 73 pulled an editorial string and shifted some dates around. However, if f read things right, this should be published in November,...