Rtty Championship Soapbox

VE6BEV Thts is my firs contest tt sure was tun, VE7ATH is my firsl RTTY contest I enjoyed it *ery much Sure hope conditions are better ne*t time, though. N7AKQ Bands ere good this weekend Larger turnout too Had a great time and look forward to next year. WA2KOK Nice contest. Many signals from Europe. KGTIV My first RTTY contest. My greatest thrill was working my first DX. SP2UUU Ju& t got my license in October and now all my family is, QRV on RTTY. Enjoyed the coniaai. VE7VP Enjoyed the...

Rtty Factory Inventory Reduction Sale

DM 70 TU 170 * TU 170A TU 1200 - TU 470 * All Reduced for ig Savings Call Today 1-800 HAM RTTY FLESHER CORP * P 0 BOX 976 * T0PEKA KS PCS H r t PQ riErt.BCANLI.CD, . *. S.ilO i trj n. . i ' 1 nntfU E. t, hlm can. h .--jojS ptueiL e .T W. n hem, scan . r rr> SANT I Si JI. ii U , > r nKn, L-it.nN. L L.fj . .'fl OO itMF-U . ' H I ' HF PI ThflJMPWHt I rEWPQ S ri I Uli ill 16 i EY TOrJT PAD* . OO I FNTFI il I 2. M. O nEM,9LANt Lt'D. . . 2 S*1J0 nr bA I . ARI l'Ai I FRY FDR J L i Ht-ESTI M L Ml...

Atq

The NPN transistor with some values tor the biasing resistors. Ignoring beta, this circuit gives Vc 8 V and Ic 9.2 mA, Fig. 6. A simple digital-to-analog converter DACI As various resistors are grounded through their switches, the voltage through the baser and therefore the output voltage. changes. the voltage at the collector and the value for the collector current which is flowing through Rc Obviously, by Ohm s Law, there must be a voltage drop across Rc of VRc Ic x Rc, so the voltage...

Engineering Consulting

CA M651 TIAierj-BOW i i --.il- i fu1 rHi.'i 1 t.- 4 L H LlL'-rtllJ.- if I .1 Il I Llf, Mil .-I . Ii, . Ml i fi i . I. < 1 I L L> lull - il h FOX TANGO CORPORATION Box 15944, W. Palm Beach, FL 33416 Phone < 305 663*9587 iC-740* 9 bjnd 200wPEPxcvi * mic 1099 00 869 *FREE PS-740 Internal Power Supply & 50 Factory Rebate until gone PS-740 Internal po*er supply______________159 00 149 *EX-241 Marker unit 20 00 EX-242 FM * X-243 Electronic kevef uml--------------50...

Hams Over The Clouds

Celebrating the 32nd anniversary of the F A P Foica Aeria Poftuguesa (the Pqt luguess Air Force) and taking an opportunity to promote this lovely hobby iwo aeronautical mobile stations were active from two different airplanes, CTTCUG (Colonel Alonsdi CTiGl Lieutenani Colo nel BrogLeiTa CT40A (Captain Leo nerj were involved in this act. Thrs operation had the support of the High Command and the event *as very well accepted by the hams and locai authorities who ssued the aeronautical mobile...

Heath Kit Rtty Tuning

The rvrv HD-3006 Crossfire Tuning indicator is a visual tuning indicator lor radio te etyPi> Y* communication. Suetee--. L Os make up tne display tight *ertica LEDs identrty '-njfk signal strengtn *nue eight homon ai LEDs do the same for space signa, strengih Tuning the indrca-lor tor majcmgm vertical and horizontal tspia> will provide a strong signal *or computers or RTTY -nntefs. Eacn L D bar requires appro* imately 14 dS no-signal to-signal voltage ratio for full operation. Mimflrufll...

Nicad Charger With Memory Erase

Prugramable 1 to 12 cells No Nicad heat build up Supplied with universal EZ hook ire leads Control Products Unlimrted, Inc. has responded to our professional market by introducing the Model GMS 403 Rapid Nicad Battery Charger and Conditioner. C.P.U.'s many satisfied customers havtifrom time lofime madesug estionsconcerning extra featur& s thai Ihey felt were desirable These suggestions were compiled and our new product group went io work, implementing these features in the cleanest design...

Great Britain

Jett MaynardG*EJA r0 Church tie ids Widnes WA& 9RP Cheshire England Atler an absence months. I have just Slates again. This rime I notched up my First visit to New York and found most of the stories of (tie heal and humidity to be true (thank ooodness for sir conditioning) Unfortunately, from the tourist's viewpoint t spent only twelve hours on the ground thanks to the Concorde (left London's Heatnrow Airport at 1030 and amved at JFK at (7930 tor a futJ day s *ork. Tnal same evening I...

Mfj Deluxe Electronic Keyer

MFJ Enierpnscs Inc., introduces the MFJ 407 Deluxe E rictronic Keyer to its line ot amaieur-radio products. The MFJ-407 features iambic operation with squee e-kcy, dot-dash Insertion, and semiautomatic operation that provides automatic dots and manual dashes The keyer also features a dot-dash memory, seltaomptetlng dots and dashes, jam-prooi 3pacinc. and instant-atari keying Sol Ids t a t' keying is provided for use with tube or solid-stale transmitters Front panel controls include linear speed...

Tau Spc

TAU Systems, Ltd., has announced a now addition to then line Ol antenna-matching units The SPC-3000 ATU uses an Infinitely-variable rolk-r Inductor and & .-KV jir-dfeiectric capacitors arranged In an SPC configuration A buill In 4.1 balun rated at 1 kVY is also Included The tront panel sports a counter lor the roller inductor. 3 fjvc-po ltlon antenna switch and two meters- one monitors forward power theoth+.r & wr The unit wtll

Directionfinding Equipment From Doppler

Doppler Systems latest me of ad o-direction ending units operates with any narrow tiand recc-iiver in the MHz range io provide Fas location of irv tertenng 5 gnais No receiver mOT'seasons are r quned-the direction tinder connects to the receiver s antenna and ex-ternai spe er tacks Four economical models are available which provide a range of optional display and remote-output features a 16-LED compass rose J-dign bearing in degrees, an GS-232C output, and a synthesized voice outpul The a peach...

Info

The new Kantronics Challenger makes you ihe winner with superior performance at a knockout price. Tin1 Challenger terminal unit is designed for RTTY ASCII AMTOR operation with any of the Kantronics software programs. Compare our specifications with the competition, then check the price. Challenger's four pole switched capacitance filter gives sensitivity and selectivity found in units costing much more. And wiiii only SmvHMS of audio required to drive Challenger, you can really chase the weak...

Mouser Relays

Mouser Electronics announces its enir.-into the relay market 'th qualify tine of DIP eed relays, the ME431 2000 series Their DiP-style packing ma - Ih- m For more information, contact Doppler Systems, 5540 E Charter Oatr. Scottsdale AZ 85254. 602h998-H5i. Reader Service number 477

In Rtty Operating

Indispensable, improves any RTTY station. 1. Crosshair LED scope1 Tuning Array. Makes tuning quick and eas gt with oead-on accuracy. Tune for maximum vertical and horizontal display 2. Scope Adapter Mark Space outputs for scope. 3. Shift Indicator. LEDs indicate 170, 425. 850 Hz shift. Especially useful for RTTY outside ham bands. Sharp Mark and Spaco Filters. Greatly improves copy under crowded, fading and weak signa Dondi-tions. For 170, 425 , 850 Hz shifts, 5. Normal-Reverse Switch. Check...

Spectrum Communications

Germantown Pk, S12 Norristown, PA 19403 215 6311710 Telex 846-211 I HAVE A SUSPICION that we're not going to lose this band, but that doesn't mean that ham radio is out of the woods,1' says Art Reis K9XL Art, who is the editor of 220 Notest believes that hams have won this battle, although he cautions that further attacks on Ihe 220-MHz spectrum avocation are likely, incredibly, hams are buying 220 gear by the bushel. Part of the reason is the increasing popularity of digital modes of...

Handy Reference Card From Micro Logic

If you design or repair electronic circuits. you can now get a nandy plastic reference card hat lets you get right to the basic workings of ever thing from op amps to programmable unijunction translators wiinoui having to go through theory, fabrication methods, or advanced terminology. From Micro Logic Corp. of Hackensack NJ. Micro-Chart 10, entitled Active Electronic Components, Is a two-5-iaed fr'.-'-oy-t - plastic card that is packed wilft info mation Non-digital functions readily available...

Easytalk By Nady

Nad gt Systems' Eas gt Talk kH personal ra dio communicators are ideal tor outdoor act -I ties a her close contact with a pan ner or group is desir amp i amp EasyTtlk com mumcators are light weight mugged and easy to operate The units are vo c triggered so the users hands are iree Ranged up to Y mite in optimum conditions. EasyTaik operates in the 49-MHz FM band. No license is required 01 u G. Model FRC-1X is a clip-on bodvpach transceiver with aitached heaoset The PRC-iX worts in the simple...

Poland

Jerzy Szymcza 78-200 Btarogard BuczKa 2f3 Poland At the end of 1984, depute to the National Congress of PRAA will gather They were elected by district conventions, including he district convention in Katowi' ce on March 25 th, where many members and invited guests heard a lecture by the outgoing boaro about organization troubles elated to nearly two yeats ot hcens-ing difficulties ft is lo be regretted that so many former hams do not pul in for licenses again The first Polish UHF Ftf repeater,...

It

Put your computer on-the-air with either Interface II or the new Kantronics Universal Terminal Unit Interface II is designed for use with the Apple. Atari. TI-99 4A. TRS-80C, VIC-20. or Commodore 64 computers. Suggested Retail 269.95 The Universal Terminal Unit is compatible with IBM. Kaypro. TRS Model III and IV. and many other computer systems. Suggested Retail 199.95 Interface II is the unit for the serious amateur. When used with Kantronics software. Interface H gives the sensitivity and...

M

I'm not going to cover any solidstate theorv here, just how to use these things in something practical. Maybe we II look at the theoi some other ttme. Your basic, garden-variety bipolar transistor has exact ly three leads emitter collector and base. You can find which is which for the particular part you're working with by checking the data sheet, but all transistors share two basic properties in normal operation I irst, ihe currenl flowing from collector to emitter is...

MFJ

Free MFJ RTTY ASCII CW software on tape and able tor VIC 20 or C gt 4 Send and receive computerized RTTY ASCII CW with nearfy any personal computer VIC-20, Apple, TRS-80C, Atari, TI-99, Commodore 64, etc. . Use Kantronics or most other RTTY CW software. Copies both mark and space, any shift including 170, 425, 850 Hz and any speed 5 100 WPM RTTY CW, 300 baud ASCII . Sharp 8 pole active filter for CW and 170 Hz shift. Sends 170, 850 Hz shift. Normal reverse switch eliminates retuning. Automatic...

Lone Brazilian Ham Crosses The Atlantic

Having left Luderitz City, Namibia, on the southwest coast of Africa on June 10, 1984, the 23-yearoid Brazilian ham Amyr Khan Kiink PY2KAQ is trying to cross the Atlantic Ocean alone in his 6-meter row boa t Not just any mad adventure, It is a fong-pianned scientific expedition sponsored by the Brazilian lAT-Companhia de Comercio Exterior Exterior Trading Company , and was studied to its smallesl details. Under the supervision of French radionavigation specialist Maurice Uguen, who was the same...