Optional Fender Washer

Wire just above the top of the valve stem, Then slide the wire out and clean it so that it shows bright shiny metal from the mark to the bottom. Now, install the ft difiedn valve core and measure the distance from the top of the stem to the top of the core. It should be about 3 16-inch but may vary depending on how severely you modified the core. Place a second mark on the whip material 3 16-inch or whatever distance you came up with down from the first mark. Remove the core from the stem and...

Info

Details of base for capacitor assembly (dimensions in inchesJ. geographically blessed with a location where a crystal set can rcceive many stations (not always better programs), A more geographically challenged crystal set experimenter may need younger ears to share my results. William Simes' article is an excerpt from the Xtal Set Society's new book, Crystal Set Projects 15 Radio Projects You Can Build, You can check out more crystal set projects and the Society s bimonthly newsletter...

Hamvention and Hara Arena Sign Landmark Agreement

On Wednesday, November 12, 1997, Hamvention General Chairman Richard Miller N8CBU and Hara Preadent Johnny Walker signed a contract to hold Dayton Hamvention at the Hara Complex through the year 2003. This is the longest contract in their business relationship. Dayton Hamvention is responsible for adding over 7 miliion annuaJiy to the Dayton economy. This will translate to over S35 million over the contract. in the year 2000 the Dayton Hamvention will be the site of the American Radio Relay...

R

In the practical ease, you usually know the dimensions of the coil, and need to calculate the amount of current required to create a specified magnetic field. We can geL this for the Helmholtz pair by rearranging Equation 2 The coils are a little difficult to wind, especially those of large diameter (e.g., four inches). One source recommends using double-sided tape (the double-sticky stuff) wrapped around the form where the coils are to be located. As the wires are laid down on the form they...

The Price I

And Ten-Tec's 1210 T-Kit is fun to put together, too R.W. Purkey W9NUP 7732 Red Oak Street N, Richfand H ls TX 76180 It has always seemed more than a little strange to me that in the era of orbiting amateur satellites, HF rigs with every bell and whistle imaginable, and new FM rigs being produced at the rate of the radio-of-the-month club ' manufacturers are still using the same old designs for SSB and CW from a decade ago for VHF and above. I don't know of any VHF rig that has DSP, for...

Advance Design Labs Code Key

Michael GeierKBIUM c o 73 Magazine 70 Route 202 North Peterborough NH 03458 There's much controversy these days o er if and when Morse code, or CW, will be phased out of amateur radio licensing requirements. Whatever your stand on the issue, the fact is that Morse code is still quite popular on the HF bands, and it shows no prospect of disappearing, even if it winds up no longer being a requisite for entry into the hobby. Tune down around 14.010 MHz or so any lime the 20-meter band is open, and...

Bnb

WANTEO RF Installation Technician-Future Vision. Inc. is seeking individuals o install - . reiless data commLLnicatton systems throughout the US and Canada Candidates should h ve experience m sta ling antennas transmission lines, grounding systems, and lower dimbmg Microwave amp spread spectrum experience is a pius This position includes extensive ravet Please forward resume and salary requirements io Jim Hong KA8ZGP al jim futurevision,net or by mail Future Vision. Inc., 1709 N West Ave.,...

Indiana Hamfest

Indiana State Fairgrounds Indianapolis, Indiana All Indoors Paved Parking Lots Forums Over 500 Tables Many Nationally Advertised Commercial Dealers Flea Market Taik-in on the K9PYI Repeater 147.060 MHz Come amp enjoy a show by our Quality dealers ForTjbles SA5E to MCRa DON Main St. Mutiaralle ES 46151

Side View

Actual dimensions of the antenna needed to obtain resonance ma be slightly different than the calculated lengths. The dimensions of my 17-meter beam do not agree with the lengths calculated by using the formulas because I wanted to u e ten-fool arms for the radiator and director elements. Do not use full quarter-wavelength elements for the radiators or director, as the favorable beam characteristics will downgrade. Note While the physical design of this antenna is all mine, the formulas and...

Qrp

Mike Bryce WS8VGE SunLlght Energy Systems 955 Manchester Avenue SW North Lawrence OH 44666 prosolar sssnet.comj Last month, we began by repairing a broken VFO capacitor in ihe Healhkit HW-8 transceiver. Since the HW-8 is a direct conversion rig, the operation of the VFO is paramount But don't get me wrong A dead VFO makes for a dead supcrhet transceiver just as welK Because most of the gain in the receiver is done at audio levels, a fingertip is by far the hest signal injector made for a direct...

Bilal Company

COLORADO B G1S CTflCLE 42 ON F EAD fl SERVICE CARE 3Ju gt TV and Satellite Deseramhlirty 1998 iiictiules ill satellite fixes SI5,95. Satcll le Hacker Package y ,95. Hacking Digital Satellite Systems Vid u S39.95. year Subscription in Scrambling News includes weK 29.95. Besi Deal. Everything here only S99.95 C-0,D. is OK. 6.00. Free catalog. Scrambling Nirus 1060 Niagara Fails Blvd., 110 Tonawanda, NY 14150 71 383-6910. www.scnimhliriirncws.com Spectrum...

Connector Kenwood Pin Din Data Plug

Fig. 3 gt The Kenwood adapter circuit. U e of this resistor is optional It was included to make basic circuit and radio less susceptible to sialic charges. various RS-232 control signals to work into a 2 ki2 to 5 ki2 load, so there may be some voltage sag when using this line as a power source, bul the CMOS chips draw is negligible. If your computer's DT K line runs much higher than 10 volts, the 470 2 resistor may have to be changed to 1 k or so. My computer s RS-232 levels 1 use a Compaq...

Fkq

Voil batteries so that it can be used in the field, A sensitivity switch provides four positions, each with a different overa J sensitivity range. The output signal is a DC voltage thai can be monitored by a strip-chart or X- Y paper recorder, voltmeter, or fed into a computer using an A D converter. If you intend to use a computer to receive the data, then it might be worthwhile to eliminate the D A converter and feed the digital lines D0-D7 from the SCL006A directly to an eight-bit parallel...

Seagon Company Oakville Center Suite

Free for attaching the matching section. I can Miggest two ways to secure the wire to the insulator One method is courtesy of Mike Zuckerman WB2IVN, who likes to loop the wire back through the eye. When the loop is pulled tight, the wire is reasonably secure. The method I use is to pull the wire straight through the eye and then solder a small loop of wire above and below the insulator to lock it in place. If you plan to do this, it's easier if you slide the other two insulators onto the wire...

Worlds Smallest TV Transmitter

Perfect video transmission from a transmitter you can hide under a quarter and only as thick as a stack of lour pennies- that's a nickel in the picture Transmits color or B amp W up to 15G' to any TV tuned to cable channel 59 with a solid 20 mW of power. Crystal controlled tor no frequency drift with performance that equals law enforcement models that cost hundreds more Deluxe model includes sound using a sensitive built-in mike that will hear a whisper 15 feet away Units run on 9 volts and...

Letter from Down

Where at least one ham won V clam up There you are running anywhere from 100 to 1,000 watts, The ham at the other end is receiving you 5-9-9 plus. You. on the other hand, are receiving him her at about 3-3-9. You've got your gain cranked open almost all the way, straining to pick up as much as you can of the signal. He she on the other hand has armchair 1 copy. Second scenario You arc running anywhere from 100 to i ,000 watts. The ham at the other end is receiving you 5-9 plus 20, You, on the...

Aea

Tempo Research Corporation 1221 Liberty Way Vista CA 920X3 760 598-8900 FAX 760 598-4898 AEA sold a variety of produc s over its 20-year history. Timewave cannot repair most of ihe non-data products because they have few spare pans, but they may have technical data on those products. Their working knowledge of the non-data products usually vs ii I be quite limited. Please inquire about specific products. In particular, the antenna tuner products, the LA-30 linear amplifier and the WM-30 SWR...

Wavecom

Transmit extremely clean and sharp video and audio up to 300 feet. Wavecom transmits in the 2.4 GHz band using FM and circular polarization for state-of-the-art transmission. There is no fading, ghosting, humming, buzzing or picture rol ing when using the Wavecom. System consists of two parts, a transmitter unit and a receiver unit. Switch selectable 4 channel operation allows use of multiple Wavecoms in the same geographic area. Connections are video and audio in and out using standard RCA...

Saluting the Flag

Doug Person W4DXV 10306 Yandem Court Charlotte NC 28269 ki6bq amsat,org Over my 36 years in ham radio, il have found building and experimenting with various antennas to be both my primary area of interest and a source of great satisfaction, Antennas remain an area of experimentation thai is still accessible to the average amateur. With a few trees, some wire, a few insulators, and a length of coax, you can build a number of different and interesting antennas. After building and evaluating a...

Dealer

S20MHJ Eiard-Pi F-Pfi -wr DCt 1 Kian Hustief. KLM, METZ, .--j- uqoUBLOK ro -w Buftt i Dcfia. ASTRON POWER SUPPLES Benton. Wjfe amp Cato int I VHra Ovune s Tfilopnon Sypiiniv for ft ufar A 'i Fm AM Broadcast Transmit t 4 StocfcK ASTRON POWER SUPPLES Benton. Wjfe amp Cato int I VHra HAflRY ELECTRONICS CORR, 540 BROADWAY NY, NY 10 12 - mimum ngp APitKi FAX 212 25-7001 Phone 21 -92S-7000 Nfhv Vnrk ri w c AUGESt stocktMQ TWO wiii RAOK gt OE UR IVJ'rV Wily gt COtJPLf E BEPAJRtJ0 CHI Pfl r 1 SE...