Info

SHIPPING INFOHMA7ION iiPDfnn ovrn iii A'lLL BE iih'lPPED POST.PAID EKCfPT ON IIEM WHEHi ADD TIQNAL QHftplSES AflF qrtXJESTFrj ON QPOSFIS LESS THANUS PLEASE HGLUDF ADDITIONAL 1250 FOn -ANLILING AV MAILING CHARGES MI IHIGAN fiESlDEhrc AD SALES ta.* SE NO W STAMP OR SASE y Oft F HEL FLftH ' iiNaLHi' ORr ER ADD U0 rjL-GTfl(jf IN U S f UHC r - - ' . P.O.BOX 1101 - DEPT. 7 SOUTHGATE, MICH, 48195 PHONE (313) 265-1782

Gik

With a tan that cleared the rear window by blowing the car interior's air at it Marginal performance and a desire to mount a hi-fi speaker in its place had resulted in replacing the fan with a stick-on grid defroster This after-market unit did not have a relay to control the defroster power all the current flows directly through the switch. Since I had decided to build a timer circuit, it seemed a good idea to install a similar desrgn for this after-market, relay-less defroster, As a first...

MFJ

Battery backup maintains time during power outage. ID timer alerts every 9 minutes after reset. Red LEO .6 inch digits Synchronizable with WWV, Alarm with snooze function. Minute set, hour set switches. Time set switch prevents mis-setting. Power out, alarm on Indicators. Gray and black cabinet, 5x2x 3 inches. 110 VAC. 60 Hz. DUALTUNABLE SSB CW RTTY FILTER MFJ-7528 99,95 Dual flltert give unmatched performance The primary filter lets you peak, notch io* Dass or nign pass with extra steep skfrts...

Ham Help

I am seeking technical assistance In modifying theTX rx switch.ng speed oi a Yaesu FT 101 ZD fof use on AM OR Daniel Murray WA7Y1C 1541 Oxbow Circle RRill Billings MT 59101 1 need car license piaies with ham calis lor my collection. 1 collect used -lates from any stale. I will gladly pay lor the mailings surface please Addresses hi re i can get plates would also help. Wilhelm Johannes YD2DKL Pandega Duta m 17 Yogyaktiila, Indonesia (274) 2341 U7.50 Weather-boot kit (PL-2591 8.95 pp Much more...

New Product Dentron

SPECIFICATIONS QRV-1 All Solid state construction Four-place digital display No tune-up Full break-in CW Battery operation possible due to low current Transmitter spurious emissions ail down 40 DB CW narrow and wide positions lor receive Receiver sensitivity 0.5 uV 10dbsn N IDEAL AS A BEGINNER'S RIG WONT BUST YOUR 223 North Michigan Avenue - P O. Box 848 Out O' Slfll* CiiH Toll FBEE 1 AGO S32-6S9S more information, com act Benson Scott AE5V 107 Co rite m DO West Wcmroe la 71291

Mag I Com Rf Speech Processors

Add6dB of average output with genuinerf clipping an your transmitter's l-f stage. Custom engineered flur Kenwood TS-120, TS-130. TS430, TS-520, TS 530, TS-B20 O'aKe T4X, TR-7 Yaesu FT 102. Excellent speech Quality, simple installation, af-lordable prices' SASE for data and cost. Magicom. PO Bo* 6552A, Beilevue WA 90007. BNB1Q1 REPAIR, alignment callbraiton Collins written estimates, 25 nor CoHins. 50 K1MAN, (207H S-2215. BNB117 IMRA International Mission Radio Asso ciatEon helps missionaries by...

Decode Soviet Space Messages

As you read this, mysterious signals are being beamed into your shack. What do they mean Where are they coming from Use WDQBCI's satellite-telemetry reading program to uncover the facts. ou hear it on the high end of 10 meters whenever the RS satellites pass over RS5 K00 D00 000 GOO U00 WOO the heartbeat of the satellite, the telemetry beacon. It provides a constant stream of data about the health of the spacecraft, but what does it all mean Is there a way to figure it out Take heart, because I...

Rtl

E f NC RQUTlr 5AHPLE I FUT rQRT MD UA1 T -OR THE tNi bT j. fHAN i lilftL SVfC SHOULL. i.OO ONLY FOR PULSES SWEATER THAN ftPPfiQX ItWTELY 3 nlLLJbtCOfil S. IF 1> E PULSE WIDTH IS LESS THAN APPRO . MILLIStCUHiJT, THEN IT IS A HQfiiiOMtit STNC PULEE* INI TALI E ULI If LE ER IN COCO TO fff*TT JOYSTICK IMPL T TO Tt CORRECT PIN M THE C WCCTOf< - JOrST IOC INPUTS CAN HE A POSSIBILITY OP 4 PJKS PEI.CONFIAN 10 Maw F DEL A -i 1 WEEN PIl X5 . .f iifiLC HJ n> vl.i- fj-LL. MODES OF RT.LEFT ION GENt AL...

Pc Electronics

IC-74Q* 9 band 200* PEP*cvr w mic 1099.00 899 *FREE PS-740 Internal Power Supply & 159. GO 149 20.00 39. QO 50.00 59.50 47.50 96.50 96.50 159 00 144 39 00 39 50 19 50 iEX-243 Electronic keyer unit *FL-45 500 Hz CW filler list IF) *FL-54 270 Hz CW filter (1st IF) *FL-52A 500 Hz CW filter (2nd fF) * FL-53A 250 Hz CW filter (2nd IF1 SM-5 8 pm electretcW mrciophone HM-10 Scanning mohife microphone *OpUons also for fC-745 listed beiow IC 730 8-band 200w PEPxcvr w mic 1829.00 569 FL 30 SSB Niter...

Hustler

DELIVERS RELIABLE ALL BAND HF PERFORMANCE Hustlers new 6-BTV six-band Trap vertical fixed station antenna offers alt band operation with unmatched convenience he 6-BTV 40, and 75 80 meter coverage with excellent bandwidth and low VSWR. Its durable heavy gauge aluminum constriction with fiberglass trap forms and stainless steel hardware ensures long reliability. meter kits (30-MTK) for 4-BTV and 5-BTV are also available.

Stone Mountain Ga

The Aiford Memorial Radio Club wit host the I2m annual Stone Mouniam Famvention on November 10-11, 19& 4. at Store MounT .n Par- Stone Mountain GA. Hours o*i Saturday are 900 am to 5 0C pmandon Sunday 9i00 am to3 00pm Admission i 54 00. wh< ch includes admls-sion for botn days oarkmg at the namlest site, and the Salurday-nighi cook Qui. Activities will lake place at jLakeslde Center, with inside dealer displays and light refreshments m the Hospitality Room. The Boneyard Mile will be Just...

Ege

22 Fair Radio Sales 87 23 FlesherCorp 49 307 FlesherCorp. t 49 352 Grove Enterprises 25 31 Hal Tronic .40 313 Hewlett Packard . . 4a 123 Hustler, Inc 2 274 ICOM Cov. IF Kenwood, . ,. , .5, Cov tV 9 MFJ Enterprises . .6.7 412 Nemal Electronics 25 137 Nuts& Votts ,. . 25 A ParsecCommunications , iQt 212 Pipo Communications . 79 61 Fi JioAmateuTC Ooo .lnc t07 RamseyEleclronits tit

Dutyfree Imports Tor Indian Hams

Indian hams have something to rejoice about import duty has been completely waived on amateur equipment. The waiver covers not only transmitters, receivers, and transceivers, but also gadgets like Morse-code readers and aural frequency readouts. This move license-free. duly-free im port could conjure up visions of ham shops full of amateur equipment. There is a catch to It, however. The user alone is entitled to Import the equipment, so that each amateur has to import one piece of equipment and...

Smart Patch

CES Simplex Autopatch 510-SA Will Patch FM Tr nsc ivei ro v0ur Telephone Gn n F TetephoneCaJI Frnm Mobile raB-tSP Simple T US m 9 95 F -600, R'1000, R-2000, TS-930S AT, TS 430S, TR2600Ay3500, TR 7950, TW-4000A. Kenwood Service Re pair TH-21 ATr TH-41 AT. TU 211A 411A amp TS711A 811A DRAKE, EARTH SATELLITE STATION. ESS-2250, ESR-24. VoCom Mirage Daiwa Large inventory of 1 Tokyo Hy-Power Saxton Wire amp Cable Amplifiers amp

Free Catalog

An lique. Hard To find Receiving Broadcast Industrial Radio TV types LOWEST PfllCES. Mafor Brands, In StocK UNITY Electronics Dept. 5 RD. Box 213, Elizabeth, NJ 07206 Santa Rosa CA 95402 DXPEDITION TO KERMADEC Ron, Ron, wake up. The storm last night sank our boat We're stuck here on Raoul Island Ron Wright ZL1AMO cuffed himself out of a deep sleep at 6 am to this unpleasant news 'But then J decided I couldn't do anything about the boat, so t went over to the...

Universal Audio Filter From Palomar

Palomai Engineers has announced a new universal audio tiller. Mode FL-J is for SSaCW Frm' and features swrtched-ca-pacitor filters. A TO-pole low-pass and an B-poli high pass can be moveo anywhere In tht1 200-3500-Hz range 10 form a sharp bandpass filtei at any frequency and of any bandwidth. A notch filter is also included. The filler connects to the receivers phone jack and provides 2 Watts of audio lo drive a speaker. The on-off switch bypasses the filter when not in use. It operates from 15...

Hires Color Sstv Converter From Robot

A new ni h-resoluiion color SSTV converter has been added to Rebel's fine of amateurradio products Designated me Model 12Q0C. it is capable of transmitting color tfdeo images that rival broadcast television in picture quality. The Model 1200C has Ihree selectable 6-bi memory planes that combine to form 262,144 color combinations in a 256 x 24D tme full screen display Eight different biack-and-while- and color-transmission lormals are available with automatic selection on receive. Lip to six...

Doctor Dx

For the active CW operator, there is nothing more fun than operating with the Doctor DX CW DX simulator. For the person who has never liked CW, Doctor DX will show you what real fun is. Doctor DX has something for everyone from the aspiring Novice to the experienced Amateur Extra Class licensee. And you need no FCC license to operate Doctor DX With Doctor DX. all you need is a Commodore-64 computer, a key or keyer , and a TV set. There is no need for an expensive transceiver, amplifier and...

Kantronics

EIMAC 3-5Q0Z S72B. 6JS6C 12BY7A amp 4 40 A Long range Wireless Telephon lor export in stock New TEN-TEC will be shipped d lt r ct 2691 HT, Corsairs stocked you free oi sh-ppirq coat f BIRD Wattmeters amp Elements In Stock Fox-Tango Filters LUNAR PREAMPS STOCKED DENTRON IS SACK IN STOCK MAIL ALL ORDERS TO BARRY ELECTRONICS CORP_, 512 BROADWAY, NEW YORK CITY, N Y 10012. New York ritw' largest stocking ham dealer n ww COMPLETE REPAIR LAS ON PREMISES We Slock AEA, ARRL. Alpha. Ameco Antenna...

Fbcq

Fig, 2- Frequency response curves for standard filters. let's use cutoff frequency, since ifs fairly standard. If a CW signal is being masked by one at a slightly higher audio frequency, you may be able to shift thv interfering signal a bit higher and then use a bandpass filter to add further selectivity to the signal you are copying If the cutoff frequency of your filter is fixed, this type of adjustment may be difficult. Many less expensive filters have a fixed cutoff frequency, while some of...

The Kant Ron Ics Interface Ii

As an amateur enthusiast of some twenty four years turned compuier crazy. I am parnculaHy nit. rusted in software and hardware packages ihai can t gt e used in iht- ham shack Wh l the actual sending ot CW, RTTY. AMTOR, and ASCII is H duck soup for virtually any home computer, the need for an interface between the compuiei and itio h,mi equipment is siill a necessity I'vu previously had the chance to review the original Kantronics Interface and the AEA CP 1 hut I was anxious to see how Ihr - Kan...

Czechoslovakia

Rudolf Karaba 0K3KFQ ARC Komenskeho 1477 955 01 Topolcany Czechoslovakia CRC, PO Box 6B 113 27 Praha 1, Czechoslovakia, is ottering these awards for non-European countries P-75-P is awarded Tor contacting or listening to sialics n .anoiJS TU zones. Ttiere are 75 zonej altogether, and three sorts of awards arfl available 3rdctass tor contacts wHh SOzones, 2n.j class for contacts with 60 iones and 1st class for con tacts with 70 zones All contacts since January 1. 1960. irrespective of the class...