Info

R7 0A, R7100A, R9 0A, IC-725,728. 729. 735, 737,765T TBI IC229H. IC3230A, IC9 1 A. GPS Receiver GP-22 Wherever I go, I take my radio. Specialist in RADIOS Business marine aviation, ham radios and scanners. CONTACT US FQH THE LASTEST hW BUSINESS AND HAU RADIOS,, SHDFTTWAVE RECEIVERS ft SCANNERS, MOTOROLA, VA SU. ICOM, KENWOOD, A UNCO, STAN AFLD.M JIKOH , flaw, e N tK KING. SONY. SANGE AN

Delaware

ICOM, Kenwood, Ten-Tec, AEA, Kanironics, DRSi Mfg Ameritron. CushcraFi. HyGairi, Heil Sound, Standard Amateur Radio, MFJ, Hustlor. Oiumond, Butternut. Astron. Larsen. and much more. DELAWARE AMATEUR SUPPLY* 71 Meadow Road. New Castle DE 19720, 302) 320-7723, fJo tl Jersey's newest T-mo Way Ra o and lec-tnmcs Dealer is now open. Sales of Hani. Bus* ress. Manne and C B two way equipment as wefi as Scaurs Shortwave. Electron* K-ii Amen-nas Socks. Catft Bo*es and...

Microwave Transverters

SHF 1240 Complete Transverier SHF SYSTEMS No tu ne I inear transverters and transverter k its for 902,126flr 1296, 2304,2400,3456MHZ. All use 2m i.i.gU& V, Kits include mixer and L.O. P.C. boards, Ktai and all components. Built units include I.F. DC. switchboard, connectors and compart low profte housing. Olher frequency options in amateur band avdabte. SKF900K 902 906 MHl 5DmW Kit 139 Buifct S2G5 129G-130D MHz IDmW 1268-1272 0scar Made LlQmW 23D4-23O0 MHz lOmW ZACO MHz Mode S rev Conu...

The Sr Connects To Any Transceiver To Make A Simplex Repeater

Portable or mobile repeater to increase the range of HTs * Emergency repeater * Test repeater to hear your own signal * Test for skip conditions Unmanned hidden transmitter * Calling frequency machine The 7110 has two modes of operation. In the automatic mode the repeater only repeates when there is no repfy to a transmission within two seconds. In the continuous mode ail transmissions are repeated without delay. The 7110PL has a PL decoder so the frequency can be used without the repeater...

Software

0 857 1993 Passport to World Band Radio by JntemationaF Broadcasitng Services. Ltd You'll get. the latest station and tim grids. S16.50 03S11 Shortwave Receivers Past and Present edited by Fred J Osierman Guide to 200- shortwave receivers manulactufed in ihe last 20 years The Blue Book of shortwave radio value 58 95 0 R25 The RTTV Listener by Fried Osterman New and expanded. This specialized book competes issues i through 25 of the RTTi us-tener Newsletter Contains u > -t H3atfi. nard-io-1md...

Meters for

Use an old TV antenna for this inexpensive, two-hour project Last spring I was asked to supply a 2 meter beam lor our local radio club's Field Day satellite contacts, Not having an extra beam, I found an old TV antenna someone had given me. There were many elements and the square boom was 92 long, perfect for the 11 dB gain needed. First, I had to clean the boom of all elements and hardware. To do this. I used an electric drill to remove the rivets. Then I used a Scotch-Brite pad to clean any...

SEPT

ADRIAN, Ml The Adnan ARC will hold Iheir 2lst annual Hamfest Computer Show at Lenawee County Fair Grounds from 8 AM-2 PM. Walk-in VE Exams. Talk-in on 145.370, Contact Dennis Boyd-ston WE8Z> 2383 E. Clearview Dr., Adrian Ml 49221. Tel. (517) 265-8054. BUTNER, NC The Falls Lake ARC will sponsor its 2nd annual Hamfest at NCNG Armory from 8 AM-4 PM Contact Fred KC4VSOt FLARC. P.O. Box 502. Butner NC 27509. Tel (919)575-4262 CLEVELAND, OH The Hamfesl Assn. of Qeveland, inc. will present The...

Zero Surge

Here is a new patented surge protector that never contaminates ground. The Model ZS1800 surge protector from Zero Surge provides fast suppression of power-line surges to protect microprocessor-based computers, networks, and peripherals. Rated at 15 amps, it eliminates spikes and surges without relying on commonly used MQVs (metal oxide varistors). As a result, this surge protector not only eliminates surges on the 120 volt hot wire but also keeps the power-line ground circuit clean, eliminating...

Rf

The saw-loolhed waveform allows the VCO to sweep linearly from a low to high frequency, and then snap back to the low frequency end of the swept spectrum. Both the sweep width and center frequency controls are part of the sweep circuit. Using the RSG-30 RF Sweep Signal Generator There are two basic ways to use the Boyd RSG-30 sweep signal generator if you have an oscilloscope that has a 30 MHz (or greater) bandwidth, or if you can be satisfied limiting the RSG-30 to a lower bandwidth (say+...

Tnba

Antenna Tuners M F J, AEA AT-300, ICOM, KENWOOD, YA SU, REPEATE S STOCKED. WHITE FOR QUOTES KA PLUS KPC aw KPC 400 SUPER FAX II, KPCiV.D ta tngine.O*. 10. Ate Computer Interfaces Stocked MFJ-1270B, MFJ-1274, MFJ-1224, AEA PK BS, MFJ-127 T, PK-9GQ, PK-232 MBX W FAX, DR St PRODUCTS DSP 2232 Antenna Tuners M F J, AEA AT-300, ICOM, KENWOOD, YA SU, REPEATE S STOCKED. WHITE FOR QUOTES KA PLUS KPC aw KPC 400 SUPER FAX II, KPCiV.D ta tngine.O*. 10. Ate ALJNCO DJ580T, 120T, 162T, 460T, 1 0T, F1TH,...

Cross Needle Meters

* Separate Meter and RF Sensor allows for convenient placement of the meter. * Cross Needle Meter provides FWD, REF, and VSWR simultaneously * The RF-Sensor is a compact design, and has an extremely low-loss circuit. * Beautifully illuminated when connected to power supply. * Optional EXS-3 10 foot extension cable for a total of 16 feet between the sensor and meter. Rickey Nievera N2MBC, Carle Place NY Wayne, keep up the good work. I wonder if you will change the makeup of 73 Magazine to less...

Affordable High Quality Year Warranty

'J-22Z 20MH , OC Off & _____S64 STANDARD SERIES 325 25MHz 3 9 40MHz 195 5-I3 5 OMHz 849 Hign Lum-nance CAT TV Syrj rrV Se isitivity 2 - l, st P-aaas P X- Operation 9 Con,nn3al& SchamalK Vollige, me. -h Ffecu ncy t rrer& nce& splavec on CR thai te yse o sudors (5 1355 only) DELUXE SERIES S-1330 25MHz 449 5-1345 40MH 575 S-13 0 60MHz 775 ALramgitc Beam F nder IZ Axis Woduteliort EuiH-ip Coi iptnem T & D us. all fte falunes 3 re -aifoidaWe Eenes V-1 CSD - 1 DQMHz, Olial Trace V-1 OS...

Feedback

In our continuing effort to present the best in ama-leur radio features and columns, we recognize the need to go directly to the source you, the reader. Articles and columns are assigned feedback numbers, which appear on each article column and are also fisted here. These numbers correspond to ihose on the feedback card opposite this page. On the card, please check the box which honestly represents our opinion of each artide orcoJumn. Do we really read the feedback cards You bet The results arc...

Harlan Technologies

Now, a new inexpensive method of copying slow-scan TV from Harlan Technologies uses software and a Sound Blaster compatible sound card with a PC, Slow Scan II will work with the Sound Blaster, Sound Blaster Pro, SB 16, Pro Audio Spectrum 16, Fusion contact The Tool Resource, P.O. Box 1106, W. Dundee IL 601181 telephone and Fax (708) 468-0849. Or circle Reader Service Wo. 202. mysterious problems, such as blown peripherals, keyboard lock-up, and lost or corrupted tiles. Zero Surge products never...

Discone Just For

7hufs wrong Couldn't you make VV ihe last antenna work My wife always says this when I'm working on a new antenna, Putting up and taking down antennas is what 1 do in amateur radio. Anyway, that was n year ago last fall, It was a dis-corie. Does a discone sound high-tech That's not how I made it, but it works, First ihing, when 1 decided on this projccU looked up what other people had to say about discones. Two references were found The ARRL Antenna Book and Home-Brew HF VHF Handbook by William...

Nemal Electronics International

Nemal Electronics international has introduced a new line of composite RF control cables for use in two-way communications, and especially for amateur radio applications. The HAM-CABLE is constructed of a coaxial cable and an eight-conductor rotor cable with an overlay weather-resistant jacket. Available versions include RG8, RG8X, and RG213 for coaxial members with either standard 8C1322 or heavy-duty 3C1620 for rotor control. Part number HC100 consists of RGB low-loss foam, together with...

1

Fully-assembled I O card which has more than enough input and output channels Tor several other projects besides a rotator con troL That card also includes three timer counter channels which you may find useful, and some software drivers written in BASIC I bought the JDR-PR2 prototyping kit 29,95 , and the PR2-PK parts kit SS.95 instead, and added the additional circuits and pans Assembling my board took only about an hour, and it worked immediately upon installing it into a spare expansion...

Luke High Current Continuous Duty Power Supply

540 40 AM P 13,8 58Q-80AM P-13.8V g g m m m gag. a. . . g ga a- a g ' S540 V 1 W W V V- W I i p-l I I I I I 4 - i I fc III H I I . V VW V U vwl tftfrt III r t W i i i i i y l J WWW I I hp J jn,lll I 4sV t-r-r i lt iaia fi i a ' r i a a a a'a- . lJr TU quote quote OPTIONAL FAN

Must

1 4 S . . y lt fr Opt- 3 A 5 kHz Narrow Bard fitter provides 5 kHz resolution BW 350.00 Function Spectrum Analyzer hp. tek . And Don't Wxl -iff a- fy i . Spend 3K to 4K For So Called Low Cost Limited Function Analyzers. Avcom, B amp K, ProTek J ITC delivers full function i i - - -St - i w gt ,- - r T a -i-i-, _ It RMS M C. VISA, DISC., At, CHECK MO ,C0D PRICES amp SPECIFICATIONS SUBJECT TO

Compressing the WEDP

W3edp Antenna

Build this unique multibarid restricted space antenna. The W3EDP antenna first appeared around 1936. It was, at that lime, an unorthodox multiband antenna design, in as much as it consisted of an S4-foot end-fed wire plus a 17-foot counterpoise, and no ground conncction. It was usable on the 80. 40. 20, and 10 meter bands using the same 17-foot counterpoise, except that on 20 meter 6-1 2 feet was suggested. Some people also used it on the 160 meter band. The whole thing was resonated by a coil...

Tower Corporation

7182 Rasmussen Ave, Visaiia, CA 93291 Unsurpassed Quality since 1954 6830 Americana Pkwy. Reynoldsburg, OH 43068 Bill Brown WB8ELK c o 73 Magazine 70 Route 202 North Peterborough NH 03458 Last month we tiescribed the Fori Wayne. Indiana, crossband ATV repeater. in order to avoid many of me problems which can arise when building an tn-band ATV repeater, the Fort Wayne group chose to put their output on the 900 MHz band The 900 MH2 band was chosen over the 1200 MHz band because inexpensive...

ICOM

IC iA iookH 1 IC-275H un - C 47SH C-3-UT2m Tl j-i CZSAr .ww iC-i T Ht lUS AT 2 MHJ iC AT coMjffi L' irn gt lt U1 I.ihrjn induriinf KRJ_ RiiOB - ARTSO - WS 1 1 400-426-2891 METRO 612 786-4475 FAX 612 786-6513 2663 County Rd, I Mounds View, MN 55112 73 Amateur Radio Today September, 1993 43 Joseph J. Carr K4IPV RO. Box 1Q99 Falls Church VA 22041 The Boyd Electronics RF Sweep Generator circuits can be performed with a simple continuous wave CW signaJ generator, but the avid technician quickly...

Call

FOR SPECIAL INTRODUCTORY OFFER ON ALi MODiLS SAVE UP TO 1000 on sai soo with opts 1,3,5 amp 6 Michael Qryce WB3VGE 2225 Mayflower NW Massiilon OH 44646 Imagine you're laking a Soto Irip lo Hawaii in your Cessna 150. During your Iraveis, you end up having engine Irou-ble over Ihe Soulh Pole. Making an emergency landing, you prepare to walk oul. Ait of a sudden ihe storm of he century starts a blowin', glaciers are cracking, bronchitic sea gulls are coughing up green ice cubes. The blizzard's so...

Twisted Loop

An indoor 40 meter antenna for five bucks. I am one of those unfortunate hams who lives in a neighborhood which does not allow visable outdoor antennas. To make matters worse, the HF bands continue to deteriorate. and i have found it increasingly difficult to communicate after dark without a decent 40 meter antenna. Therefore, I had to rind a solution The Distributed Capacity Twisted Loop, The DCTL was designed for indoor and portable use on the lower high frequency bands. The requirements were...

BNB

ROBERT HALL ELECTRONICS, 1660 McKee RcL, Suite A, San Jose CA 95116. 408 729 8200. BNB751 THERMOGRAPHED CARDS Raised print QSLs at fiat printing prices. Sampies Phone 817 461-6443 or write W5YI Group, Box 565101, Dallas TX 75356. BNB761 WANTED HAM EQUIPMENT AND OTHER PROPERTY, The Radio Club of Junior High Schooi 22 NYC, Inc is not only the Big Apple's largest Ham club bui also the nation's only full time, non-profit ERS approved 501 c 3 , organization working...

Ernational

Arnie Johnson N1BAC 43 Old Homestead Hwy N. Swamey NH 03431 Ahhhhl Another Field Day has been completed and a good time was had by altr As we were setting up a tower with a tribander on top, vertical antenna, wire antennas, VHF UHF antennas, and satellite antennas, I was wondering why we go to all the trouble of setting it all up when in just a few hours 24 or so we will be taking it all down again. But, after the first contact was madey that question seemed to answer itself It's fun Hopefully...