June B

LONDON, ONT,r CANADA The London ARC will operate CJ3-LON from a hot air ballon on one of the following evenings June 15, 16, 17. or 13 and tbe morning of June 19th, lo celebrate the 200th Birthday of London. Ontario. Frequencies 146.52, 446,00 simplex, and FSTV 439,25 IX only For commemorative GSL. send QSL and SASE to Anthony Drawmer VE3-SQU. 55 Briscoe St Westr London N6J-1M4 OntarioCanada, WASECA, MN June 1993 marks the 70th year hat E.F. Johnson Co has manufactured radio and electronic...

Arrlbooks

AR1993 ARRL 1M3 Handbook (fiSth Ed.) 39 chapUK, feULLTinj 2.1IX) tables, figures and cfc& m* CmnpnclKiuive. well ngumed and affordable. S2i,U0 AR1CB6-4 ARRL Operating Manual (4th Ed.) ErUfinr.j iwr qn he* io nuli the best use of j Out station, including interfacing home computer*. OSCAR, VHF4JHF, 17.00 AR0194 Antenna Compendium Vol. 1 Materials or verticals, quadtH Eoups. yagis, reduced size antenna.1 , haluns. Smiih Chans, iiitcnna potariEfr iion. 510-00 AR2545 Antenna Compendium Vol 2...

Division Of U Electronic Industries

123 East South Street * Hanreysburg, Ohio 4& 032 1 (SOD) 829-0321 Write lor a Full Une Anlentia Catalog al No Cost DEALERS WELCOME Marie In The USA flecause It Matters Make and receive telephone calls from your mobile HT with your own personal autopatch. Connect to phone line and transceiver microphone. PTT. and speaker jacks. endar are May 30th, the 35th Genera Assembly August 20-22, 1993 Amateur Radio Festival and October 31 r All-Japan AftDF Championship, The JARL received a Fax from the...

Code Tapes

AR21D3 Satellite Anthology The Liest information on OSCAR* 9 ihrooi h 13 as well as the ftS ulellites, the use of digital oirdes, tracktng anten nuh RLDAK. mkrocsnpuier.aul mate S5JI0 AR2C83 Complete OX er (2nd Ed.) by Bob Ltxktr W9KSf Uam how to hunl L> X and oNain hard-tCHgei QSL cards, 12.00 AR20B5 ARRL Anten na & ook > The new th Fdition rcprr whb ihe hat and mox highly leEardcd m formal im on aniCTnj fundamcn-u > . trmsmi siim ilines. daipit and conarvaxjn oi wire aniennas, 520.00...

Counter Mfj-346

Handy MFJ-346 frequency counter to your station and gel high accuracy frequency measurements to 600 MH with 10 digit precision. Easy-to-read T 4 inch LCD digits don't wash out in bright sunlight like LEDs. inght sunlighi like LEDs Compatifite w ith MFJ b tuning the frequency control tor minimum meter reading. Then read nur feed- W7 Anah ers Dip point resistance directly from Resistance Meter and Antenna Budge , it s calibrated resistance meter. Four gate times, J Hz resoultion, high It s great...

Switched Capacitor Audio Filter

Designed by Samuel Ulbing, N4UAU . . , October, 1992 QST -3 dB bandwidths range from 108 to 2440 Hz Very sharp cutoff. 30 dB attenuation just 150 Hz outside of passband Very effective on both CW and SS8 12VDC operation Has low current drain of 50 mA Measures HWD 1 3 4 x 4 1 4 x 3 3 4rt 100 complete kit including cabinet, all components and instructions The PC board supplied is a double-sided type with plated-thru holes and component screen,

Portable Packet Digipeater for Emergency Service

The HT TNC and battery box connected. Photo A. The HT TNC and battery box connected. During the forest fire season, California has many major tires, some raging for several weeks. A call to amateurs for assistance in communications by various local, state and federal agencies is filled by the volunteers. During these disasters, the agencies involved need more portable packet stations and portable digipeatcrs, Some locations arc not accessible directly from rhe stations at the remote...

Fpo Ap

In early November I made a short visit to Taipei BV t The xiangeftangzu sausage tribe of Taiwan now has grown from one to over 1,800 members over the last few years. Ham radio H personal radio, and a wide array of business radio services became available to the general public about three years ago when martial taw ended. Who uses what frequency hasn't quite been setUed yet. In one shop in the Pa Teh Li electronic row an 1COM 2 meter handie was described as a CB radio and 144.800 MHz as the...

Full Duplex Interconnect

The CS-700 is for simplex operation and offers selectable VOX Enhanced or VOX Controlled Sampling. Sampling allows the mobile operator to have positive control at all times. The CS-700 requires an internal connection to the discriminator of your simplex transceiver. The CS-800 will operate Full or Half duplex and also has a built-in Repeater Maker. The two transformer hybrid provides superb trans-hybrid isolation. The only required connections are to the Mic and Speaker jacks of your dual band...

NAPEs NiCd Zapper

In the September 1992 issue oT 73 Amateur Radio Today Ed Miller N7APE described a circuit for recovering NiCd batteries ihat have grown internal shorts, His article got my immediate attention because it seemed like a simple solution to a problem that plagues many of us. Most of us have numbers of just such NiCds. If you do much with NiCd batteries around ihe ham shackt ihen you will definitely want to build N7APETs circuit. Some hams have been known to burn out internal NiCd shorts by...

Year Limited Warranty

These great new Azden handhelds all feature Rugged commercial construction 5 Watts output-standard Two level power out Batteiy power saver 5 and .5 watts Heavy duty metal heat sink True FM modulation anchors belt clip, antenna, Double conversion receiver connectors and controls 12 ID SINAD non-slip performance 41 memories in two banks , m c All CTCSS tones battery, charger, charger encode amp decode stand, belt clip and hand strap paging amp Code Squelch Accessories 7 DTMF telephone memoiy Soft...

Introducing The Universal M

A totally new concept in code tone readers A RTTY-reader and tone-decoder In one N DTMF Easy to read two-line 40 character LCD, CTCSS PL No computer or monitor required. DCS DPL Forget the limitations you have come to expect from most readers'. The self-contained Universal M-400 is a sophisticated decoder and tone reader offering an exceptional range of capabilities. TheSWL will be able to decode Baudot, SITOR A amp B, FEOA, ASCII and SWED-ARQ. Weather FAX can also be decoded to the printer...

Antennas

Carr n, buikd. nwvJify. and in-MJJI JPLJI own aiLLcnrtAv S-t D 20N10A The Easy Wire Antenna Handbook by Dave inf ram K4TWJ. Gives you all of ihe needed dirnenxkifi for a ufl nn e of eas - to thiitd and eiect sJty 09V11 The Basic Guide to VHF UHF Ham Radio y fC ard M. Nuti Provkfc i frt rate bv tTD CtVil to ihe 2j6 in-J 1.25 mete tumis as well 2anil 7Ocm. S amp JO 20NQ19 U.S. Repeater Mapbooh by Wiltium Srtdih N6MQS The Guk e for traveling radio an incurs. S .95 by William Orr...

Circle On Reader Service Card

73 Amateur Radio Today J uns, 1993 57 Joe Moeit RE, K0OV P.O. Box 2508 Fullerton CA 92633 Medal-Winning and Record Breaking T-Hunts Wtchita, St. Louis. Toronto. Saiem Oregon and North Carolina , and Montreal have something in common. They are all cities with new and growing interest ancf enthusiasm for amateur radio direction finding RDF contests, in these hidden transmitter hunts often called foxhunts or T-hunts , hams use special receiving equipment to find stations placed in unusual spots by...

Micro Video Products

1334 S.Shawnee Drive, Dept H Santa Ana, CA 92704-2433 Carols Perry W amp 2MGP Media Mentors, Inc. P.O. Box 131646 Staten Island NY W3134QQ6 In 1853, the 200-fool clipper Northern Ught set the sailing record from San Francisco to Boston, 15,000 miles, in 76 days and s x nours. Rich Witson WAiBZE and Bili Biewenga aboard the 53-foot trimaran Great American II are trying to break that record. In January of this year, the science coordinator of the Staten Island school district. where I each,...

Flytecraft

FLYTECRAFT has introduced two new antenna models, the Model CFN and the SFX line. The Mode CFN left is a 16-eiement, wideband VHF UHF antenna designed for amateur radio operators or scanner enthusiasts, and for all frequencies from 50 through 1300 MHz, It provides a solid low angle of radiation or reception witn a low SWR across the spectrum less than 1.7 to 1 with unity gain . The ModeC CFN is designed for both indoor and outdoor use. and for permanent or portable use to assemble, you simply...

One Full Yeaf Warranty

LCD CENTER FREQUENt OPTIONAL SEE Opt6 Biil-OW TUNE C AVATI ES, FILTERS, DUPLEXERS CATV, MATV, SA IE IL HE SERVICE THE ULTIMATE LOW COST SPECTRUM ANALYZER Thflts a bold statenwm but fc ITC SA Series Spectrum Analyzers ure The best performance to price ratio Analyzers on the market today. You will have to spend over 10,000 gt 00 to find an Analyzer with the same total ftexabilUy ease of operation and electrical p rforr jrve of the 1TC motel SA600A, SA1000A amp ihi a J New SA1800A Analyzers, TY...

Expires

Box 4926, Manchester, NH 03108 I Or call 800-257-2346 in NH call 625-1163 , FAX 603 669-2835 1 CatfcU CIO filu TO GS r I icitr y 00 lur v J6 00 mm SCW wifJ R 1.18 r BUK m Number 24 on your Feedback card Amie Johnson N7BAC 43 Old Homestead Hwy. N. Swanzey NH 03431 I had a great thrill on March 21 I had a chance to chat with Rickw Chief Op. for BY1QH and Hambassador to Chinar, for about hatf an hour on 20 meters. Too bad the conditions were poor at the time, but there is...

T

Available for 10 GHz construction in the The output from the 10 GHz converter was split into two channels. One was fed into G3WDH's shackt feeding the 144 MHz receive system. The other feed supplied a 2-MHz-wtde 70 dS gain block connected lo an indicating power meter. The function oi Itie power meter feed was to give visual indication when the dish was correctly aimed at the moon. Tiie power meter was then used to read moon noseT he increase in noise when the dish antenna is accurately aimed at...

MFJ

Is a sensitive Bandswntdied Dip Meter that covers all hams bands from 160-10 Meiers There are no plug-in tuning coils to keep up with or break. it s the easiest dip meter you'll ever use - just tune for a dip. There's no sensitivity control to constantly adjust. Saves time and lakes lesswofk out of pruning antennas, winding its, measuring inductance and capacitate, asuring velocity factor and electrical igths of coax. Determine resonant queney of tuned circuits and antennas, easuie Q of coils....