Brazjl

Carlos Vienna Carneiro PY1CC Afonso PenaT 49 701 20270-Rio de Janeiro Brazil The following information about the Abrolhos Archipelago 'for, I hope, the January issue. ' was doomed to appear no earlier than this month even before tt was mailedt on November 16 Yes, it frustrates us, too, but a basic deadline requires receipt of material on the first of a month for the issue dated two months away the first of November for the January issue, (Brief, important, news sometimes can still make it if...

Tjhi

Slope tune_ Low cut at 2 o'clock* high cut at 10o 'ctock. mount the filters and switching board as a single unit, As it is, the combination of long coaxial cables, an unshielded board, and long, insufficient ground runs allow some ex-iraneous pickup The result is a continuous beat note heard when operating CW This is most noticeable when the International Radio filters are switched into the circuit and the CW Broad Narrow is in the broad position. However, even when the switch is in...

The Best And The Worst Of S

know, know this was supposed to run in January. Things got a bit out of hand here with business travel and other projects, Better late than never By fart Novice Enhancement, This mighi just be the turning point for the future of amateur radio. More hams mean more clout in Washington, and might mean fewer proposals to take away ' unused11 amateur frequencies for outside interests. Easy, Docket 87-14, to delete the lower 2 MHz of 220 and reassign it to a service that doesn't need it so that...

Aea Pka W

Ma NORTH AMERICAN LISTINGS CALL BOOK 9.9S LT.Q. OVEli hi FMM REI-ATEtilteMS rPf 5TOCK Al . PRICES FOB KESTQN btfradSAlii KI T i 'A< - i FflECIi I T Unr ,. . < , fifed ma NORTH AMERICAN LISTINGS CALL BOOK 9.9S LT.Q. OVEli hi FMM REI-ATEtilteMS rPf 5TOCK Al . PRICES FOB KESTQN btfradSAlii KI T i 'A< - i FflECIi I T Unr ,. . < , fifed

S

Bnfl Fbll rtefljM SmW iwiii fltfiereieirtr (IWP OltfHttJl Jily & MH lF.lfttog< Jtfli C'rcj't je Lit HudiaampIrtier.iV B*ttrnaigijwir suura, ration o lariOdid I Miifo.idcjr I rj.iiiri .1. muas largs ptnilwi fln eaLT Sidr tuiikDUHG quaiei. tQi i gil U rtonur rcapdoi bytftfaisot ribunlip eledrelmihii KituictKttS . . 1C Im- (14 tf -r- Ii -u pt I MisTjuc iant Tiiins lrii-1IN SI ulllr IV.in,Jlilti i e mt'UJ 'ipnurtH lmepc*Ki- i tunjDk from ta iduVm. polanly intliinBinyu Qrfbcl ii e ( ' A ' . un...

Missouri

Hard to find parts, surplus electronits. soudard line items Hjms, hobbyists, industrial professionals from nuts & boils to la> er diodes EiecironteaJJv > peakin . Gateway s got it M-F 9-5 30Sal GATEWAY ELECTRONICS, 8123 Page Blvd., St, Louis MO 63130 < 314)427-6116. Serving the ham community with new and used equipment* We stock and service most major lines AEA. Astron, B& W, Cushcrafl. Fncoinni. Hy-Gain, Husiler, ICOM. Kenwood > KLM. Larsen, Mirage. Moslev b< xjksh rolors....

The First Controller Designed For Portable And Solarpowered Stations

M i o a tu t e s ize - Lig h twetght fg yv Rugged metal, shietded case. INTELUGENT ' BUDLJSr' - Pfovkles Lithium Bailey backup for RAM selectee carisign ffiienng ior On bo arc Watcfidog for reiiabilily, Digipear ng, MonitOffrng and Connecirng Standard DB25 Connectors Connected r Status output Jine Remote Commands in Unattended Mode with Hardware Lockout. Extra J O lines for special applications. Wired Tested List price - 209.95 Amateur net - 179.95 Power requirement 9 10 15 Volts DC ( rtiA...

The Micro Receiver

Advanced technology makes this superhet a snap. In I he past. designing QRP rigs usually meant agonizing between direct-eonver sion simplicity and superhei performance. Fortunately, receni advances in receiver technology now enable us to build fult-featured superhets in DC-stmpie packages Here are three reasons why. The first is the Signetics NE602 mixer IC. This inexpensive device combines a double-balanced mixer, local oscillator, and bias network on one H-pin chip.1 Although designed for VHP...

Info

M,i4 Contamparnr y Eleciromca Circuit* 42 Crazy 8s H F VHF and UHF con( 49 C J ItJ T BC I i r i p 38 Dayton Hamventton BO duplex I . T, r r- 76.77 duplex dig poster . L f CB - l 76 F , 1 * * + * i i w Ilia w h m m i a--a * v* v.Mft h- i ******* I FT-1012D 50 r u m O& C A P 12 i ------- J . r. ------I. . - a - al.-ia.-raiara- - p-a T Si. 1 a

Other Radios And Accessories

Pcm& ftonlc RF-2600-RA ShorWve receive l RD55 RA Unitien Wisor mount Radar Deredgr S98 9h R D9 RA Ifnrden' Passport Radar DetetiOJ S i 69 95 W W BC70XLT RA Sea rear 20 channel scanner . S 68 95 BC 140-RA S ral l 0 channel scannei 95 BC 145XL-RA fiedrcaf channel scanner 9fi BC 1T5XL-HA earcaf 16 channe scanner Si 56 95 BC 2 1 0XLT-RA Bearcat 40 ehannp scanner 116 96 BC-WA'RA Bearcat Weather Aierl 535 95 Rt OBO-RA Rflye-cy 30 i anne seiner St 18. 5 RlOSO RA Fegz ct channel scanner S 46 LlCl...

Ec Hz Tim I Ras I

Tm rurrfflnt amp tfjnuii 1 nunjniDtiiti jtemacy seem difficult, this was not Ihe case thanks to the speaking skills of Dr. Bob McGwier N4HY. Amateur Radio Via Satellite A Look Ahead Andy Mac A ihster WA5ZIB 23 10 Romayor Court Peariand TX 77581 AMSAT GENERAL MEETING Space Symposium 1987 Beautiful, warm, sun-shiny Detroit. Michigan, was the site for the AMSAT MA'General Meeting. Awards Banquet and Fifth Annual Space Symposium Actually, 1 can't tell you much about the weather, since it was much...

Wioeband Eng Bandpass Filter

Microwave Filter Company, Inc., has come out with a new wideband ENG bandpass fitter. Model 5348 bandpass filter has a flat passband of 26 MHz in he remote pick-up ENG band 19902110 MHz , it has high selectivity to isolate several contiguous channels. less than 1.5 dB with a 3 dB roll- up bandwidth greater than 26 MHz The center frequency is a customer option Selectivity is 30 d8 minimum at 23 MHz Impedance is 50 Ohms and connectors are type N. The base plate is 1 5 x 9 inches and has mounting...

Rttys

SignetiCi NE602 mhKOf IC 26 wlar it gt i nimyrn . ._ Spacfl E rrvirtjrrrmnT Servu C n . . amp B 5unftf oT cycle n . a a .ia -a - an kbbui 66 Sunepol Cycle 22 - 66 TC-70 I 3 1 I II I - P H- - I P - - 1 54 tinz ntifWifih - p-.iifc-i - - I l l 8 - - ._JBII.t.___LJ_JS_LL. I r I. - 11 1 l Sw 1 i S Tc-Ef LM-470cranKup_____ . ________4ft TFfcS amp H O , - t - -p _ _ . . , 7H tJniverr-ny of Surrey . , 66 VECs . - 5G vernier drive . ---- . 50.52 I - a a i pp ii ----MP - i hi gt - - SO1

Power Fail Interrupt

Electronic Specialists ft as expanded their equipment protection line to include filter suppressors and 20 30 Amp protective devices. The power fail interrupt can now be ordered as an adjunct to all Electronic Specialists1 power conditioning equipment Option price is 595 installed For more information write to Electronic Specialists, Inc. 171 South Main Street. Natick MA 01760 800 225-4876 or circle Reader Service Card 203 Power fail interrupt by Electronic Specialists. Vector SMT Training Kit...

Circle On Reader Service Card

The feedline and the antenna join In a moment we will calculate just how much reflected power would be present But first, take a look at the forward power indicated on wattmeter B it s reading 112.5 watts How can there be 112.5 watts of forward power when wattmeter A teHs us that the transmitter is only putting out 100 waits In order to answer this question, let's first go back and calculate how much rejected power would be present in this situation Imagine lhat the transceiver has just been...

L

Antenna Tuner

HI ri Figure J, Schematic oj the 1750 merer transvener. Note the unusual design of the tomf oscillator t which gratify attenuates harmonics and oscillator noise. FtftUre 2. It i ait board 'iiive for the project. At tutjf dimensions are approximated 4.7 x 43. FtftUre 2. It i ait board 'iiive for the project. At tutjf dimensions are approximated 4.7 x 43. circuit board ground. The frequency should be displayed and C9 adjusted so that a frequency of 3.500 MHz is displayed, ihis...

M

M Enjoj SHORTWAVE or EXTEND frequency for YAESU FRG9600 and ICOM R7000 radios The following have PL259 connecters for YAESU FRG9600 FC965DX. S149.95,20 kHz. - 60 MHz. FC1300. 199 95, 00 MHz - 1300 MHz. WA965 109.95. 30 MH - L5 GHz. CsmiLQi console for ease of operation switches converters and antennas th out, FC7000 for ICOM R7000 with typo 'N1 connecters 20 kHz-60 Mhz., 159.95 FC965DX, FC130G, WA965 amp KC 00Q can be used Without Control console and ire poveered from FRG amp 600 or R70Q0

Circle Os Reader Service Card

73 Amateur Radio February. 1988 55 I sat glued to the dial. It had been years since I had luned in to any of Ihe world above the BC band. It was 1958, and there I was hearing voices from other countries. other nations, . .other places Oh, J had heard them before many years ago when the old Philco console in our fivingroom still had a semblence of life to it. The Philco had been a wedding gift to my Mom and Dad in the late 130s. It was state-of-the-art for its time a dozen or so 'loctal tubes in...

New Vector Smt Training

Jensen Tools has designed a kit to give electronic engineers and technicians a working knowledge of materials and methods to use with Surface Mount SMT semiconductor assembly technology The kit contains SMT devices, prototyping boards, component attachment and interconnection materials and a comprehensive 50-page instruction manual. Included are 270 capacitors. 300 resistors. i0 diodes, 10 transistors. 5 different ready-to-use double-sided circuit boards with layout planning sheets, a...

Meters

Your Ticket to the VLFExperimenter's Band What could possibly be interesting about a group of frequencies thai are so low, most people mistake them for band width Or how about an antenna that for all practical purposes could be long enough to k-used as a telegraph line between two midwestern towns These large dimensions, and the mystery thai follows the 1750 meter band, are just a part of the fascination that a lew people, often referred to as Lowfers share in experimenting and communicating on...

Electron Processing

Electron Processing announced the addition of two new models in theirproduct line of Signal Intensifies RF amplifiers. New series RFC Signal Jnten sifters are 12 volt dc powered versions of their popular RFA series. These low cost yet high performance receiver preamplifiers are ruggedly made for lasting performance in the grueling environment of today's automobiles. Available in two versions, the RFC-30 covers 500 KHz to 150 MHz and the RFC-16 covering 50 MHz to tOOO MHz. Both amplifiers...

Vector Radio

Yachtsmen who are hams long-distance sailors- cruisers, ocean racers, commercial fishermen, and boatmen who want guaranteed survival communications in the event of emergencies have been waiting decades for the appearance of something like the new Vector Radio VR-50 Transceiver. The VR-50 is powered by a rechargeable battery which is maintained at full charge by a photovoltaic solar panel on top oi its waterproof floating case. The high-visibility impact-proof case is made of tough plastic wtth...

Melville Ny

The Long Island Mobile Amateur Radio Club Jnc., is holding its LIMARC Hamfest on Sunday, February 14, in the Eieciricians Hall. 41 Pinelawn Road, Melville Long Island. Doors open at 9 to 3. Admission is 4 and S3 after 11 30 AM. Sellers 4' x 61 tables are S12 or bring your own at S1.50 a foot. 6 foot minimum helpers pay admission Registration in advance only, check payable to LIMARC, LLC Route 495 to Exit 49 N, Va mile right turn onto Pinelawn Road, Talk-in on 146.85, For more information...

The Satellite Locator

The Satellite Locator is a slide rule that gives azimuth elevation angles to geosynchronous satellites from almost anywhere on earth. On the slide rule there are visual representations of the full satellite arc horizon-to-ho-nzon, around the world, even from the southern hemisphere wiih locaJ azimuth and elevation angles It also gives the U.S. satellite longitude positions, a nag-netic declination map of the U .S., a true-to-magnetic azimuth conversion slide rule and handy az-ei formulas. This...

Icom

IC-475H 75W 440 FM SSB CW 1599.00 1429 IC-575A 25W 6 10m xcur w ps 1399 00 1249 iC 471A 25W 430-450____CiOSEOUT 97900 749 PS-25 Internal power supply 125 00 114 AG-r Mast mountec preampMrer . 99 50 IC-471H' 75W 430-450 CtOSEOUT 1399 00 9S9V PS-35 Internal power supply 219 00 199 AG-35 Mast mounted preamplifier 99 75 'Preamp S93 with 471ft or 471H Purchase SM-6 Desk micfophune 47 95 EX-310 Voice synthesizer 59 00 TS 32 CommSpec encode deLOder. 59 95 UT-15 Encoder decode interlace33 95 UT-15S...

The Experimenters Band

Here's How to Dabble on 160 190 kHz Tired of the 20m SSB crowd Hate contest weekends Have a hankering to build a simple transmitter Want a real challenge C'mon down to the low frequency LF band and join the fun. and you can leave your ham license behind if s a great big world out there Alt hams know about Pan 97 of FCC Rules and Regulations, which governs licensed amateur operations. Most have yet to discover the great fun that Part 15 allows, although some may recognize this section covers the...

Advanced Radio Devices

Two years in development the 230A represents a new dimension in linear amplifier technology and operating convenience. The 230A provides maximum legal power on ail amateur bands with no time limit The drive frequency is continuously monitored by the processor and adjustments made to ensure maximum amplifier output at ali times. Introductory price for the 230A is 3,650 Made in the USA . For more information contact Advance RacHo Devices, f03 Carpenter Drive, Sterling VA 22170 703 478-3100 or...