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Coders 100 MHz to 199.999 MHz in T kHj slept *ith thumbwheel dial Accuracy + - i part per 10 million at all frequencies internal FM adjustable from 0 to 100 kHz at a 1 kHz rate External FM inpul ac cepta tones or voice * Spurs and noise at least 60 dB below earner * Output adiustabJe fronn 5-50 mV at 50 Ohms Operates on 12 V *c & Amp Available tor Immediate delivery * 429 95 deliver Addon accessories available to ex I end freq range, add Infinite resolution, AM, and a precision 120 dB...

Long Island Arrl Indoor

FEST, Sunday, February 15, sponsored by LIMARC at the Electricians Hail, 4t Pine Lawn Road. Melville. Long Island NY. Door opens at 9 a.m. for buyers, no one admitted earl ier, Exhibitors al 7 30. Send reservations to Hank Wener WB2ALW 53 Sherrard Street. East HiJIs NY 11577 Our4 x 6 tables are 12 each or onng your own at 1.50 a foot with an 8 minimum Each tabie sale admits one person, additional workers at S3.25 each. Check yours for a self-addressed, stamped envelope, sent to the above...

Theauld Mug Award

Here in VK6, Austrafia is defending the right to hold the mosi coveted trophy in yachting The America's Cup. In celebration of this important sporting event, the Western Australian Division of the Wireless institute of Australia is offering an attractive award The Auld Mug Award To qualify for the award, the following conditions must be satisfied 1) Stations outside Australia (DX) must obtain tour (4) points by (a) communication with four licensed amateur stations in VK6 (one point each) ib)...

Heath Magazine

Heathkit has announced the publication of Kit Builder's Journal, a magazine covering all aspects of etectronic kits and kit building. The journal will offer tips, news, reviews, and advice from Heath's technical consul- I COM has always had a sensible new equtp- ment pohcy Never release a new rig until the lifespan of an older model is finished. This policy has probabiy saved the sanity and marriage of more than one operator because the cost of a new rig can be spread over several years before...

Ever Say

When the snow kepi us from roller skating on the streets of Brooklyn, we'd take our steds, sneak out at corners when cars would stop, grab their back bumpers and take rides. Sometimes we'd set a destination say Coney Island, about six miles away and we'd see who could get there first. This was usually at night so the drivers wouldn't see us. Let s see, we also put on The Pirates of Penzance (I was the Major General) plus t occasionally would sing solos in...

Rx

HOW ABOUT giving your favorite ham rag a hand We'd like to know where you Ve seeing 73 or the newsstands and where you aren't. We re trying to make certain that everybody has a chance to get his own copy of the magazine each month (we've heard stories of poslmen being mugged for their stash of subscription copies). Just jot down the name of at least one place you see it and one place you don't, on 1 card and send it to 73 Magazine. WGE Center, Peterborough NH 03458, Attn Peepers Well draw a few...

Ghz Pocket Counter

OPTOelectronics has introduced their model 1300H pocket-sized 13-GHz frequency counter. Housed in a case 3-1 2 x 4 x 1 the counter comes with rechargeable NiCd batteries and an ac wall adapter. Resolution from 1 MHz to 1.3 GHz is 1 kHz with a .25-second gate and 100 Hz with a 2.5-second gate. Accuracy is 00001 , For more information about OPTOelectronics frequency counters, check Reader Service number 209. o Services to short-frequen-range, Air-for of book commu- ' 1987 full-catalog featuring...

Indiana Hamfest

Located on the Indiana State Fairgrounds The Crossroads of Four Interstate Highways All Indoors - Over 400 Tables - Free Parking - Paved Lots - Forums - Commerical and Flea Market Dealers Talk-in on the Mighty 525 - 145.25 MHz formation, 1 would suggest a copy of The Satellite Experimenter's Handbook by Martin Davidoff K2UBC. It is available through AMSAT for 510 postpaid to The Radio Amateur Satellite Corporation, PO Box 27. Washington DC 20044. OSCAR 12, Project OSCAR has the JAS-1 Satellite...

Hamfest Goodies

The last several columns should have put your junk box in very good condition, t hope some of my hints for mail ordering have paid off. There is but one more place to look for parts to finish stuffing the junk box hamfests. It is true that in the past tew years, the number of hamfests have been dropping, perhaps due to the drop in new hams coming into our hobby. But, they are still gold mines for part shopping even if not for new pads, then just for plain junk. As an exampie, a broken...

The First Controller Designed For Portable And Solarpowered Stations

W redj Tested List price -S20S Amateur net- il79.95 w redj Tested List price -S20S Amateur net- il79.95 * LOW 25 mA Current drain Miniature size Lightweight + All metal, shielded enclosure * Onboard Lithiun- Better. RAW backup * On board watchdog for reliability * Output signal Indicates Connected ' Status. * Does not iequhre squelched audio * Remote Command Mode f r Unamended Operation * Hardware command lockout for iecurily * Commands compatible wiih our Model PKi Retains all other fealures...

IC

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Yaesu P Icom

IOA2 U1 Icorn IC Ml Marlne M700 IC-R7 A, 751 A, 745, 28A H,38A, 4 A. R 7000, 1271 A. 27TA H, 3200A,471 A H.735. Mlcro2 TS440S AT fi-5000h R-2 . TS 940 S AT TW-201B. TP26 3600A TW2570A 50A 3 A TR-751A Kenwood Sewce Hepair t h I 3 3 A AT TM-21tAMllA TS 7 1AB11A TM353 A. TH2DW VoCom Mirage Daiwa Tokyo Hy-Power TE SYSTEMS Amplifiers amp FT-23 73 27R FT-2 7Q9FUH FT-19Q3M 123 IOA2 U1 Icorn IC Ml Marlne M700

In

Fig. 3, 30-MHz FM receiver i-f amp a schematic, h circuit board, foil suie, and c parts placement. from a piece of scrap waveguide WG-16 , as described in the RSGB VHF Handbook, 4th edition. Chapter 9.43, Figure 99. Anyone should be able to construct the unit with simple tools. One word of caution with microwave devices is that you should never look into the open end of a radiating waveguide, as serious eye damage can result. With low-power Gunndiodes, the safe distance is reached in a...

Connectors Made In

NLJ20 Typi N lur Belden 3913 21 PLJ amp flAM Amph-enol barrel I i'y P1259 SliiHtaid Piiii lw 8Gi 213 10 5 9Q or tS i.'GfiJH N Female to PL259 150 0G8aC 0NC RC58 UG175 6 tepte RGS SI 10 2 50 - U SOZ39AM AnptWflOl S0239 S9 GROUND STRAP - BRAIO CSSlti 3 16 Silw Palic 35 Colorado CO 50907 JJKf TO OPERATE BYIPK 0 JCVG CHINA HAMS TRWmiNG WITH US 00' Escorted and hosted by Rodto Peking Most cotiiprehcnstife 22 day tour For titochiir Had SAS F , amp phunr anmbrf Paul Hoi , 16 9N. Hoyer Si.

In Ihsulmor To

SELECT NOMINAL VOLTAGE fl V IK 4DJ R NGE OF TO 9.5 4MJT PPRDK .Sfc SELECT NOMINAL VOLTAGE fl V IK 4DJ R NGE OF TO 9.5 4MJT PPRDK .Sfc Vmrr .vm j j v fffi yii ii oy tor J fAfjmnV, flty dram btmrd. foil sidew and c pans placement. hoard is mourned adjacent to pin 12 for short connection leads. The circuit is a simple peak detector and gives good results for tuning indications. See Fig. 3 for details on the 30MHz i-f amplifier. The power-supply modulator for the Gunn diode consists of a singie...

Test Equipment

OStllKMCOCe CNgt 3 VLI 1 wetera re -ptiore oa pfti Bt Function Generates n stick For Orders and Quotes Call Toll Free 800-336-4799 In New England Call 900-237 0047 In Virginia Call 800-572-4201 Very few amplifiers have generated the excitement and emotional involvement associated with the powerful LK-800A Amplifier. We tamed the commercial export version of this rock-crusher to the FCC type accepted 1500 watt output model, it is now offered to the discriminating Amateur. For 1986 Amp Supply has...

Mic

Waveguide circulator 10-GHz transceiver. 73 Amateur Radio January, 1987 It's not very hard to set up a station for 10 GHz. I have been experimenting with a portion o a Solfan Doppler-radar intrusion alarm that I converted for use at 10.250 GHz. These alarms can be found pretty easily at hamfests, and I have heard many people speak of the high availability of these units in Europe, where this type of alarm circuit is used extensively. I have found two different types. Whatever unit you...

Chile

All of us know well that amateur radio offers the individual many different fieids of activity. As in my case, thousands of hams love DXi ng and dedtcate most of their ti me to it. A problem arises, however, when one has reached a certain level of countries worked and suddenly the going s getting rough. One is just plain stuck, with practically no hope of working a new one because of poor conditions, or, simply, because after the 300-worked level, it is next to impossible to log more than one...

Qgg

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Ces Model Pi

The CES model 5200 is a new interconnect unit that may be programmed locally or remotely with DTMF signalling. The device is expandable to up to 250 ANi codes and features multiple-format encoding CTCSS, two-toner five-tone, DPLr 2805, and MIS , toll restriction by user, DIDfor mobile selective signaling, a clock and calendar for usage billing, and a dial click detector. For information on the complete line of CES communications IC-275 IC-475 together for OSCAR operation, and a CW filter. The...

Preamplifiers

As you are reading this, no doubt Sania Claus has come and gone and hopefully left you with some nice VHF UHF goodies Maybe it was a new beam a new amplifier , a multimode. perhaps or a transverter . One thing is for certain There's no shortage of equipment today for the VHFOJHF enthusiast, To my count, right now there are more than 20 companies lhat come to mind that make a broad range of equipment from exciters, amplifiers, and receivers to antennas, converters, and trans-verters. And this...

Ssb Analyzer

TS-t379A solid-state SPECTRUM ANALYZER for single sideband equipment Input 485-515 KHz and 2-30 MHi. Sweep 150 500Hz, 16 19x13. 70 lbs sh used-reparable 225 Manual partial repro . 15. CV-2353A CONVERTER, adds 100 Hi-2 MHz range to T5-1379A. 22 lbs sh Reparabte 75 SG-376 TWO TONE IF GENERATOR tor use with TS- 1379A 35 lbs sJi. Reparable 115 Checked S165 Manual 7.50 SG-8Z3 URM-144 TWO-TONE REFERENCE GENERATOR Tor use with TS-1379A 35 lbs sh Reparable 105 Checked S155 Manual SB.50 Frit F O B. Lima...

Cartel Electronic Distributors

Remember just a few years ago, how it took a roomful of equipment just to work RTTY. And if you wanted more than one mode it took a dedicated computer system costing thousands of dollars. The new AEA Pakratts are proving it doesn't take lots of equipment or money to enjoy working all bands in five different modes. The idea behind the Pakratt is very simple. One controller that does Morse, Baudot, ASCII, AM-TOR, and Packet, and works both HF and VHF bands. Of course the decoding, protocol, and...

Official Rules

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Wbdqtfan

I was just about to drop my 73 subscription when along comes WEATHERSAT-great For me this makes 73 a great ham magazine again I can hardly wait for the next issue Dale Hauck, M D W6YFT Los Angeles CA I arn not a ham yet but some day I would like to gel my ticket. J have a mental block or is it constipa lion of the brain keeping me from mastering the code. Theory should be no probfem, as I'm an Avionics Communications Specialist in the Air Force and I gel to work on HFt VHFt and UHF equipment...

Info

Other Accessories - continued Regular SALE GC-4 World Clock Closeout 99.95 W GC-5 Wcrfd clock 91.95 6-meter VHF Portable Regular SALE IC-505 3 10W 6m SSB CW portable 549-00 489 8P-15 AC LC-1 Leather case 39 50 VHF UHF hiise multi-mode Regular SALE IC-5510 80W 6-meter SSB CW 799.00 699 BC-10A Memory back-up 9.50 IC-271A 25W 2m FM SSB CW 859.00 759 AG-20 Internal preamplifier 64.00 IC-271H 100W 2m FM SSB CW 1099.00 969 AG-25 Mast mounted preamplifier, r_ 95.00 IC-47 A 25W430-450SSB CW FM xc S...

Mini Kitseasy To Assembl

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Vs

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Czechoslovakia

Rudolf Karaba OK3KFO ARC Gogol'ova 1832 955 01 Topol'cany Czechoslovakia Winners. Nearly a year ago OK3LQ succeeded in contacting E15FK via aurora, for a distance of 1948 km a new Czechoslovak record by means of this kind of propagation on the 2-meter band, breaking ihe 1982 OL7BDQ record of 1811 km with GI8YDZ. Radioclub OK2KZR P made a new Czechoslovak record with station SM7GEP 904 km OK2BFH also worked this station, but at 902 km. Every first weekend in July the Czechoslovak amateur radio...