Cushcpaft

S179 00 A4 Tnbander 4 EL . . 229 00 A743 744 40 Mete Add-on 69 00 AV5 80-10 Meter Vertical 95.00 214B Boomer EL 2M 69.00 214FB Boomer 1A EL FM 69 00 22BFB Power Pack 28 EL2M FM . 189 00 32 19 Super Boomer 19 EL 2M . S3 00 220B Boomer 17EL 220 MHz 7500 ARX-ZBR'ngoRangerltaM ____________.36.00 ARX450B Ringo Ranger II 450 MHz .38 00 AH7-20T Vert, S Horrz. 10EL2M . , 63,00 A144 10TSatellite 10EL2M . 4500 A144-20T Satellite20EL 2M 69 00 A432 20T Satellite 20EL 432 MHz 5.00 CNA 2002 2.5KV Antenna...

Ihm

The ultimate in communications versatility, the Drake Theta 9000E _ provides complete transceive capability of CW (Morse Code), RTTY (Baudot), and ASCIi. A full computer RS232 interface, cassette tape storage port, selective calling feature with answer-back, light pen graphics, printer interface and word processing software are all standard. Seven large 256 character memories are backed up with battery power so there is no need to reload information with each use. Memories may also be...

Corporation

WO f OftDffti Wtl COME- StA 9 9-7< H* a*.> j Mijm -i t rd ii--lt.S PUrtfH JNlv Miw VQ* Pf iFATf flf3fD A(rS ABO U.U5 TAt KISTAGf-aQV 3 -, i Lr I H W1LNUJKE > 0 D 12Off EJ -A The Model 7600A Satellite Rec eiver is the new look from Gillaspie. Slate of the art technology. Distinctively styled. The successful integration of the most sought after high performance characteristics and ease of operation capabilities. Attractively packaged. Affordably priced. A classic in its own time From...

Advertising Mm

Aast Mg-R a Kenyon KAtGAV Ta kM You wouldn't believe how soon the thriit of working stations for ten second contacts palls. You might not find it as difficult to believe what a nuisance being expected to fill out and mail thousands of QSj_ cards is, Imagine. if you will, the excitement with which a ham in Tonga receives his 780th QSL from a WB2 station. It just goes into the nearest leftover washing machine carton. Even with a QSL manager to take on the...

Deep Six Squelch Tails

Kerchunks take a dive with the addition of this audio delay. Squelch tails are ugly Few things are more annoying to repeater users than a long squelch tail every time someone drops his carrier. At WR3AFM+ a Baltimore Amateur Radio ceive-site repeater,1 this problem is compounded by a second squelch tail, that of the link receiver. The resulting overall squelch tail is approximately 110 milli seconds in duration However, thanks to the circuit described below, it is no longer audible. A squeich...

Hookup

4 zsz zi z 3> j DOT L h s i i i > c . 4 * t - * nn h j * z* ic I. w ORIGINAL CW rD R A ODE 0 C* IDE Fig L K20AW ID circuit update as it appeared in 73 in tune, 1979. amateur callsigns, followed by RPT or fR' have generally necessitated more character space than the old K20AW circuit could provide. SoH a couple of years ago, Peter obliged the troops with an update of that original design which doubled, from 32 to 64 characters, the amount of information available for use in the IDer1...

T

Schematic diagram of the dial-up two-meter remote confro er applicable) are coupled through to the other side of the transformer. The capacitor shunting the power supply and relay coil on the line side of the transformer bypasses audio frequencies The circuit shown in Fig, 1 is the basis of my Two-meter dial-up remote controller. 1 won't go further into the operation of the central office, but if anyone is interested in further study in this arear Basic Telephone Switching Systems by...

Gain

HAL PA 1.4 WfcOE BAND PRE AMPLJF1ER. 10 MHz TO 1 4 GHi l2dB GAIN CLOCK KIT HAL 79 FOUR-DIGIT SPEC1AL-S7,9S. OP ERATES ON 12 VOLT AC (NOT SUPPLIED) PROVISIONS FOR DC AND ALARM OPERATION COMPLETE KIT CONSISTING OF 2 PC G-10 PRE-DRILLED PC BOARDS, 1 CLOCK CHIP.6 FN D COMM. CAT H READOUTS 13 TRANS3CAPS, 9 RESISTORS, 5 DIODES, 3 PUSHBUTTON SWITCHES AND INSTRUCTIONS. DONT BE FOOLED BY PARTIAL KITS WHERE YOU HAVE TO BUY EVERYTHING EXTRA. WILL RUN OFF ANY 12-VOLT AC SUPPLY. PRICED AT 12.95 CLOCK CASE...

Closeouts

ji mUW i i'llkumi ir.i , if 44 fHIl lHlllt HI gt VV T, b - In Wisconsin outside Milwaukee Metro Area 450 HHz Hand-held ith factor installed 16 button tone pad. Su crvstal channels wtthin a 3 mH tx or 5 mHi irx spread 430 to 450 MHz. Z5w or 200mw output NiCsd pack wall charger ilex antenna, case, strap, earphone amp 46 0 mHi crystals. 7Y 'd lib Peguiar 325 Crystal Certificates 2 channeJ required art S5.00 each r.iien purchased WITH FT 4G4R TIP DRAKE Th ta 7000E TR-930 Combination Closeout DRAKE...

Info

LOW COST COMMERCIAL GRADE KIT EASY TO ASSEMBLE COMPACT UNIT STATE-OFTHE-ART FLEXIBILITY Speedcall Corporation, with 20 years of reliability and know-how in the Mobile Radio Industry, now offers the Model 312K a unique, low-cost DTMF selective call Touch-Tone Decoder, It's specially designed in kit form for radio buffs, with alt of the quality and performance That made Speedcall 1 in signaling To order, send check or money order to

Western

Amateur Electronic Supply 1072 North Rancho Drive Las Vegas, NY 8910fi 702 647-3114 800-634 6227 206 East Kemp Avenue Watertown. SD 57201 605 886-7314 Jim Conlev Radio Supplv 318 N 16th Street Billings, MT 59101 406 259-9554 on CW Electronic Sales 800 Lincoln Street Denver, CO 80203 303 832-1111 Pete Ham Radio Outlet 2620 West La Palma Anaheim, CA 92801 714 761-3033 Earl 800-854-6046 999 Howard Avenue Rurlingame, CA 94010 415 342-5757 2811 Telegraph Avenue Oakland, GA 94609 415 451-5757 5375...

The Bunesti Caper

Charlie Kourvelas

The two British agents needed a power amp fast. D ecember 7 1941, was a day of glory and achievement for the Japanese fcmpire because of the unbelievably effective attack upon military installations in Hawaii. In England, the long hoped-for involve ment ot America in the war now seemed assured The Day of Infamy however, also brought a special sort Photo A The crew of Destin Deb prior to its final combaf miss on to Ploestit Rumania The little guy on the left in the front row is W9PIFJ of gloom...

Hal Overstock Sale

CT2100 Communications Receive Terminal Regular 845-1 - Special Sale 689 s KB 2100 Keyboard companion to CT2100 CWR6850 Telereader Terminal 5 CRT keyboard Regular 995 r - Special Sale 8499i ji mUW i i'llkumi ir.i , if 44 fHIl lHlllt HI gt VV T, b - CWR6700 Telereader Receive only, portable reader

Vocom

Send SASE for our new amp used equipment list. Pinn t fou er U tfG i 9 Lowvft Street r dowr MA Ol Hin Move over, Cs. 77i s receiver is easy to build, Bored with cranking out the contacts on your expensive transceiver Been looking for a simple construction project to put some of the thrill back into ham radio Maybe you'd just like to build something tor the tun of seeing what you can make with that collet tion of old parts wasting away in the basement If the answer is yes then this ts for you....

In

Fig. 9. 2000-sample delay IC4 is a Reticon R5101 18 73 Magazine December. 1962 Fig. 9. 2000-sample delay IC4 is a Reticon R5101 18 73 Magazine December. 1962 here , must be removed prior to sampling to prevent a form of distortion called aliasing. It not removed by filtering, these components will appear at the output as lower frequency alias signals see Fig 4 Once aliasing occurs, it cannot be removed by filtering, since the aliased components are indistinguishable from the original...

Touch Tone Decoder

HIGHLY STABLE DECODER KIT COMES WITH 2 SIDED, PLATED THRU AND SOLDER FLOWED G 10 PC BOARD, 7-567'a, 2-7402, AND ALL ELECTRONIC COMPONENTS. BOARD MEASURES 3-1 2 x INCHES HAS 12 LJNESOUT ONLY S30.95 NEW 16 LINE DELUXE DECODER . 5 DELUXE 12-BUTTON TOUCHTONE ENCODER KIT UTILIZING THE NEW CM 7206 CHIP PROVIDES BOTH VISUAL AND AUDIO INDICATIONS' COMES WITH fTS OWN TWO-TONE ANOOIZED ALUMINUM CABINET MEASURES ONLY 2J.' lt 3J.' COMPLETE WITH TOUCH-TONE PAD. BOARD. CRYSTAL, CHIP AND ALL NECESSARY...