Glqrioso

Editor's note This article is published unedited in order to retain its special flavor. Do you remember your last DX adventure, when you reached right away HB0XXX on your first call in the biggest pileup Quitea success How about following us on our DX-pedition- but a bit further-just turn your beam toward the Indian Ocean, northeast of Madagascar. The island of Glorioso is even on sea maps only a small spot. We thought, with our licenses, we would have no further difficulties. Bull On arrival...

Each

Ect with several hundred wires and noi a single error. f have also used it in checking out a printed circuit board layout Once the board was laid out, I went b.Kk over W and checked off each connection on the list. Again it allowed m*j to spot a few layout errors which i had missed on prior checks My wire-list programs are written for a disk system. This happens Lo be the most convenient, since you can I an EiTEf HlumtF * STMI I.p CWlltHiiT > L l 7t T Ptlll STftfl- II I'l tU tO 1*4 0t70 If...

Paxson

Stopped the loss from happening I am only saying that if we jLjive iht* band the honest chance il deserves, it should reward us just as the others have. Let s go for 1Q> to 20-Watt rf equipment, reasonable receivers, and see just how much reward the band can provided 1. Karll Memzer DJ4ZC, A frequency multiplication technique for VHF and UHF SS8. GST, October, 1970, 2 Don Stoner W6TNS, VHF Column. Let s gel technicalThe APX-6 ' CO. May. 1962 3. Alien Katz K2UYH (staff), 'APX-6 Radiators. The...

Mccain

HF SSB Transceivers are designed to provide the mobile or fixed base operator with the ultimate in power, stability, versatility, reliability, and ease of operation, All this human engineered into a rugged, compact, attractive package. Tr - Trenne 'ne nCflf tlonfllI fliC nynamic frarr ' , l 1 -.r. -M watt* 'Dr irui f3EP .'jjt iul nj S un r, ih c .ve C0 ' dEh' ETI . 1 H.' SfiitSS ' r'l tFf um setims cri - es sr1 ' * a f i -j.y. lur - g mc Vi < -r ai irantTiincf . Vor C - Ra'e Stunning dllCMS...

High Frequency Circuit Design

Depending on publications written expressly for amateur radio operators is frustrating if you are seeking information about the more theoretical aspects of our hobby. On the other hand, many theory1-books are filled with mathematical proofs and long-winded technical descriptions of ideal circuits that are of little use. High Frequency Circuit Design by James Hardy is one book that falls somewhere in between application-oriented amateur texts and rigorous theory books. Al though it is intended...

Info

CC-3P shielded cable & plug for HK-3MS2.49. Add ,50 Shipping & Handling, Model AT B anti-tip bracket on v> to convert anv HK-3 to HK 3M, CC IP shielded cable & plug for HK-1 3.75 Add S JB Shipping Si Handling. ModH HK-2, same as HK-1 but less base for incorporation in your own keyer 19,95 Add SI ,00 Shipping & Handling.

Message Memory Keyer

Advanced CMOS message memory 7iwo ( 0 char escfn message stooge Longer message capacity Trample end CO CQ CO DX de WBSYJti WB2VJM K-ther, piay second message on contact-de WB2YjM QSi NV NY 579 579 Paul Pant K Uifl 'or dany OSOs or contests 3oih dot d.'id dash memory m> rimbtc keying < tvith any squeeze Speed volume rone, tune and weight controls Low current dram CMOS battery opera tion p ofia b le Depute quarter inch jacks for key Keys gn< J Week and soitd state ngs WIRED AND TESTED...

Avc Switch

Partial schematic of the Drake 2-B avc and muting circuits. replace the pot. My junk box was bare, however hence the quickie repair After the modification has been made, it will be necessary to readjust R48 Proceed as follows to ob-tam maximum receiver performance Set the frontpanel avc switch to the Slow position. Connect a VTVM 5-to-10-volt dc range) to the avc terminal on the rear apron The positive prod of the VTVM should be grounded The rf gain control should be on full, and no...

Cxi

TET, THE LEADER IN WIDEBAND ANTENNA DESIGN, introduces another new triband antenna to provide unmatched wideband performance on the 10, 15 and 20 meter amateur bands. This radical departure from conventional triband antenna design empEoys TWO DRIVEN ELE MENTS with a rigid phasing line to couple power from the radial or element lo the reflector. Phase relationships have been carefully engineered to provide extremely high gain figures without neglecting the need for high front to back ratio. The...

Hk

* Combination HK-1 & HK-3 on same base * Straight key may be used conventionally or as a switch to trigger a memory, CC-1 3P Shielded cable with plugs for HK-4 55.99, Order direct or from your favorite dealer. P.O. Box 28271 St. Louis, MO 63T32 * Heavy base. No need to attach to desk Dual lever squeeze paddle For use with all electronic keyers Heavy base with non-slip rubber feet Paddles reversible for wide or close finger spacing Self completing dots & dashes Dot Sr dash memory * Battery...

Jl

3-Elemem Thunderbirtl ior 10, 15 and 20 Meters Model TH MkS 3 Hy-Gflin's Su ier J-elemerLt Thijnderhird delivers outstanding performance on I 5 and 20 meters The I H3tfikJ ffatures separate anr matched fi> Q traps for each ban and reeds wfth b2 ohm coax My-Gam Beta Mate r ierpd tmpedanci1 r-< i most efficient '3 l> ar-d m& tching, arid provides DC ground t -i eliminate precipi a n static I he 1 H3M i delivers. m imLim F B ratio, and SWR less than 1.5 1 aE resonance on all bands. Its...

Mm

P O BOX T101 SOUTHGATE MICH 8 95 PHONE 1313) 285 1792 David Brown W9( Gl RR 5, ox 39 NoWrawJte IN 46060 This article deals with getting more activity going on the UHF and higher bands. Part l 73 Magazine, August, 1980) dealt with a very spec ial modulation scheme to allow simple rf equipment running class C to be used and multiplying the frequency to get to 432 MHz and 1296 MHz. As promised, this part of the article will deal with the rf part of the scheme, starting with the rig I used to get...

Pleasur

Work Both 2 and Meters With Yaesu's New FT-720R The FT-720R series is a compact VHF UHF mobile transceiver that harnesses the incredible power of the microprocessor to bring you top-operating flexibility. Start with the FT-720R Control Head, then add either the 10 watt FT-720RU 440 MHz or 25 watt FT-720RVH 2 meter RF Deck. You can ciamp the Control and RF Deck together or use an optional remote cable to hide the RF Deck, The best news is still to come By using the optional S-72 Switching Box...

The Complete Amateur Rtty Operating System

* UHU1UII Marysville, Wo. 98270 J flicroProducts 206-659-4279 206-659-9512 , Reliable Service Since 1963 Small Orders Welcome Free 'Tech-Data' Flyer Toroidal Cores, Shielding Beads, Shielded Coil Forms Ferrite Rods, Pot Cores, Baluns, Etc. 12033 OTSEGO STREET. NORTH HOLLYWOOD, CALIFORNIA 91607 Large, 42 H x 57,r W x 29D Strong groove-construct ion Mar-resistant wood grain finish Options, drawers & face plate

Aea

MPF 901 UHF transistors, 1 GHz Specia 5 3.95 COMPLETE KITS CONSISTING OF EVERY ESSENTIAL PART NEEDED TO VAKE YOUR COUNTER COMPLETE HAL-6D0A 7-DlGJT COUNTER W lt TH FRE ouency range of zero ro eoc uh features two nputs one LOW FREQUENCY a0 oinf FOR high FREQUENCE AUTOMATIC zero SUPPRESSION T ME BASE IS 10 SEC OP 1 SEC GATE WtTH OPTIONAL 10 SEC GATE AVAILABLE ACCURACY T 001 UTILIZES tQ-MHz CRYS j 5 PPM COMPLETE KIT hal 300a 7 dlgtt counter with frequency range of zero to 300 MH FEATURES two...

Separate Receiver Antenna Jack

For use with separate receiving antenna, linear amplifier with full break n QSK or tran sverters FRONT PANEL HEADPHONE AND MICROPHONE JACKS. Convenient DIGITAL READOUT. Six 0.3r red LEDt BROADBAND DESIGN. For easy op, ration. instant band change no runeup of receiver or final amplifier. From the pioneer. TEN-TEC SUPER TRANSMITTER, Solid-state all the way. Stable, reliable, easv to use 200 WAITS INPUT Or, all bands including 10 meters i with 50 ohm b.id High SWR does not automatical limit you to...

Dj

Tl 120 V primary, 18-V 300-mA secondary IC1 uA7812UC 12-V regulator IC2 IM358N dual op amp IC3 LM380N power amp IC3 ground pins 2, 3, 4, 5, 7, 10, 11, 12. drivmy anything from a 4-Ghm speaker to high-impedance headphones This circuit is so simple that the time required to produce a PC board for it did not seem justified I built my unit on a small piece of perfboard Although used trimmer pols for the tone-adjust and filter en ter-f re que n readjust controls, these...

Hitachi Oscilloscopes

Tfle 4360. 43 52 UM-M TL Diretininjl Wdtl- L iridic il i l L iir- y f fflilrum ittsi kJi mciSiir li -.'w.inJ li i L-f l fj pr gt t i in U- hn COJxil tr.Lii iiiisaittn Iniii. Thev -ire direct giitcendwsitS'of the 43 THKUI INE Wattngttr ffrie I'i n.ii lt kM ifj.ud lt r it lduilJiy ji gt U_ wjli jui jIi l. nri iiu'f RI pow i fluw tuilier jnv lt ad rendit i LLrn.1 Le S mndt up en f i prttrs tly mjthincri i-ciion ni 50-ohm line, i rouubte sensing ii-mcrl amt meriej c j libr t d in w cis. i mourned h...

Rac

Vlf Converter

BUFFALO NY 14203 New device opens up the world of Very Low Frequency radio. Gives reception of the 1750 meter band at 160-190 KHz where transmitters of one watt power can be operated without FCC license. Also covers the navigation rad-iobeacon band, standard frequency broadcasts, ship-to-shore communications, and the European low frequency broadcast band. The converter moves all these signals to the 80 meter amateur band where they can be tuned in on an ordinary...

Typesetting

Barbara Lan Sara Bedell Un Ja Locke Robert Baker WB2GFE B-LL Gosney WB7BFH Sanger Green Dave Ingram K4TWJ Larry Kahaner WB2NEL . G3ZCZ B Pasternak WA6ITF John Scnu' W F A Peter S ark K20AW in subaudible tones with ASCII coding, With this you would be able to tune in a station, whether on sideband or FM, and read out the call letters immediately on your receiver. Being in the audio spectrum below the passband of your receiver, you would not normally hear the 10, but it would continuously read...

Earcat

The one that pioneered synrhb ii amp EJ scanning - and unlocks new hanneh of P4p crystals to buy full 6-Eiand coverage. Keyboard programming makes frequency selection as easy as ounching a nush-hutTijn t iephonu Dt gt cim ii display and axibtusive rolling siroi to show whai't toeihfl programmed and rrionitofed Auromaric search for finding new Frequencies CqLith 29 lt jTL ftecogmzed industry Standard fliftjr porfUraf C6 mobile ltifl FTtfslfen r.nrtir.a itHfl .j-T ' QyrisMUfi An m , indttilor...

Hbsp

425 HIGHLAND PARKWAY, NORMAN, OKLAHOMA 73069 TEL 405-360-6410 part award worksheet is prepared he original copy and applicable award fee is mailed to the Peterborougn offices for 73 to process. It is there that your award is given a personal touch, from there. it is later mailed to your door In the meantime, a copy of the award worksheet is mailed to the applicant to acknowledge that the applica lion has been received. Should the applicant feet it necessary to follow up on the application, he...

Classic Meter Preamp

i V. r itflfl rriTli pr mp , piiatHDl ifc lt fnasl . Jn.i liliiji - e rrotPii. Orr-.- jnrforml , to r al .' figurv cross tn lult band Equatrv appftcabta fc P AM. nd ' dBtfain 2 dB noise ifgufB i . .- _rr ti'4C corir-etfoTri Mumnijm Oo es M HH S44P0 144 52 64 WHi B O 21 M 135-139 MHj IBNO 2m Preamp Module tSoW TwrmnaH 16-35 U4-14B MHJ io Tfim i eri JSO-239 41.95 430-450 VKj Bls 0 gt 3.5 dB mjiimum NF 33.00 430J50MKi iBNO 2-0 lt JB rninirnuFTi NF 5455 1J gt tfBt PK iNF 90.00 Any trpqufncy 30 and...

TEMPO

Porrafr es vrt you r e J O JM croire a tfie lov.r-st price T pnly lynlheured hand h t offne ing S watts output Stt'tchllili Kir 1 or B wan opitalioni The tame depend t ln y ilw kith proven Si. GnnilfY hat his l en proved m mote ihan i million houtt o I operaron. Heavy duty battery Pac Te'Piiioping whip anttn na Enern i mtcroph jr gt . a sUl t , Tempo n lir l ayain. This tlmr WiTh Hi tltperior duality lvhth iiWl 0 MHi hand held ran ct vpj lAMh S-2 in yuur tar ot p amp cket you can uit 22 WHF-...

Hygain Adds Three New Products To Tower Line

Hy-Gain a division of Telex Communications, tnc,, has announced the addition of three new products to its tower line. The HG-70HD. a new 70-foot self-supporting crank-up tower, is the tallest of seven towers now offered by Telex Hy-Gain. The tower is all steel, has four sections, and features an improved guide system providing rigid, close-tolerance structural support while leaving the tube ends open for complete surface galvanizing and unrestricted moisture drainage. This heavy-duty tower was...

Touch Tone Decoder

HJGHLYSTABLE DECODER KIT COMES WITH 2 SIDED plated THRU AND solder flowed g 10 pc board 56 s, 2-7402. and al l electronic components board measures 3' i gt inches has 12 lines OUt only 1 9 5 DELUXE 12 BUTTON TOUCHTONE ENCODER KIT utilizing thdi ne ICM Chip Provides both VISUAL AND AUDIO indications' Comes wilh . tone anodi ed aluminum cabinet Measures only 2 3iA 3 3M Comptelewrih Touch Tone pad, boafd, Crystal chip rmd ai' necessary components 1o finish the kie P I E D T ir p i a - p p i T T r...

Busoriented Rigs

If our ham transceivers were built-in modules like computers, we would be able to buy a rig and then add to it as money and interest dictated. By the use of a common bus structure for the system, it might be possible to build a rig with end panels which are removable so further modules could be added. For instance, the D module could have a small panel space for its control and just screw onto the end of your transceiver, interfacing with it automatically Next, we might want to add a Morse...

Low

HIGH BAND lt 40 channels Z .B05 - Z 9.32 MHz Fig, 4. Mod caf ons in the PLL coding IC input name Pin number Freq. Shift value kHz 3 28.905 28.925 28.935 28,945 28.955 28.975 28.985 28.995 29.005 29.025 29,035 29.045 29,055 29.075 29,085 29.095 29.105 29.125 29.135 29.145 29.175 29.155 29.165 29.185 29.195 29.205 29.215 29.225 29,235 29.245 29.255 29.265 29.275 29.285 29.295 29,305 29.315 29.325 Meanwhile, a crystal oscillator whose frequency is divided by M in another divider provides a stable...

M

100 , but a fair amount sure seems to clean things upl On some APX-6 models, you will still need to carefully remove a bit from the transmitter cavity plunger On one of mine, I did not have to do anything but tune On the other, it required trimming, but someone else did it for me on a lathe , so I suggest you obtain copies of the articles in the bibliography and digest them well before chopping away, he modification of the cavity plunger would make an article in itself as it did several times...

Exploring

This letter is a letter ot thanks lo two very special persons I have become acquainted with. This is not a letter thanking someone tor helping another person on a certain class oj license, but its just a vote of thanks for a lot of time and dedication. These two very special persons are Chris W4WRJ and Jay WA4RQP Last March, these two came to a Boy Scout meeting which I as a part of lo talk to interested per lt sons about amateur radio and forming an Explorer Post specializing in ham radio....

Omnic

The new model in This famous senes With new coverage and new features to make it better than ever Ali 9 HF Bands. From 160 through 10 meters, including the new 10, 18 and 24.5 MHz bands. Coverage you can live with for years and years, 3-Mode, 2-Range Offset Tuning. Offset the receiver section or the transmitter section or the entire transceiver In 2 ranges i 500 Hz or t 4 kHz For complete flexibility in fine tuning, a DX work, or net operations Seven Response Curves. Four for SSB, three for CW....

Telex Communications

300 kHz or better on 15, 20, and 40 meters With the addition of a base loading coil, the 1 8HT also provides exceptional 160 meter performance Many 1 8HT's have been in service for 1 5 years or more and they stili deliver original spec performance. This enviable record is the result of Hy-Gain's no-compromise attitude toward materials and construction.The 1 8HT is complete with a 24 foot galvanized tower that supports the entire system without guys in winds up to 75 mph. The top section...

Dealer A

Swan Astro 102bx

6JK 1 Dr Jvc 53499.00 Nq TnM i Qll Oul Of Shipments Popufar 16K L v l It Sysiem. - 700.00 36-1 160 WinlOiik y. 424.00 26 1171 Telephone Modem 169 00 Foul 100 CPS Centronics 730 Printer. . . 675.00 Highly Relioble Lobo 5W Drives 375.00 VtnQlll Lobo Inierfate. 0 Drives and IMI Hard Dfivot Coll For Pricni 1-800-841-0860 Toll Free Order Entry DOWNTOWN PLAZA SHOmNG CiNT R US C SECOND AVE S W CAJfiO GtOHGtA 31728 _CSA FHONF NO 171 .177 7 1 n- 4K Level 11 SS 7 0 Full Factory Warranty on All Jtemt Sold...

MFJ

SWR. forward-reilocterF wattmeter, rfam meter, dummy oad, fintenna switch, toalun. 3kW PEP 3kW Vena Tuner IV. 7 position QfitennB switch. balunj 3kW PEP 3kw Vsrsa Tuner IV. WR, foTward-reflected wattmeter, balun. 3kW PEP 3kW VeTiia T ner IV. Built-in balun. 3kW PEP i. amp kW Versa Tunsr Hl.SWR. forward refl teii wattme amp r amp position antenna witch, balun, 1,5k iV PEP 1,5kW Versa Tuner l gt 1. 6 position antenna switch balun for balanced I met, 1 5kVJ PEF Deluxe...

Thdxx

Hy-Gain Diamond Web Bracing for the ultimate In structural the father of The Final Exam speaks out Dick Bash KL7IHP has created a furor by publishing FCC test questions, verbatim, in a series of controversial license manuals called The Final Exam, Individual manuals exist for the Advanced, Genera , and Extra class tests and will be released soon for the Novice class test Controversy has arisen because many hams feel that these manuals are nothing more than elaborate cheat sheets and, as such,...

Credit Card Holders May Use Our Toll Free Ordering Number

Wallis Island, Macao, Sudan, southern Sudan, Aland Islands, Cocos-Keeling, Guinea, and the start of a seven-country expedition in Africa, Americans continued to play less and less a role in expeditions, as only three of these were Yanks. A. E. Howell G3JKI came on from the British Embassy in Tripoli, Libya, in late June, work ing with F6CYL on 20 and 15 meters SSB He left on June 27 with no apparent plans to return soon. Documentation is awaited in Newington before DXCC credits will be issued...