Measure Deviation

The DM-1 s a deviation meter for FM transmitters operating in the 144, 220, or 440 MHz amateur bonds, Dystd controlled no tuning required. Dual deviation ranges allow accurate measurement of voice, data, DTMFr and subcudible deviation Accurate deviation adjustment insures faster throughput ori packet Automatic disable with low battery voltage ensures accuracy, ompoct ond battery powered for convenient use anywhere, Outputs for external digital or analog meters, and an audio output for...

Wayne Writes

ni il 1 m Afifti puH catkns on budding receivct*. mauiineri. imv R427li H't RultBook A iihlm for l'1- .-i .mi1.l' fadki flniBilcLU ARii. fi VI I Code Fhe Ksstntiil Lvnf> ua e try L Peir* < ir*> i Jr. W T> KY Expanded aol u& d in its i-Jnnm H,va 1- . TminJUe digress heard noi i d ihe hambiinds but on 1 AdthliQdint ( j ic El ironies ARRL M bit fhi- cxphir e ftv thin ver) Mittply ibe math. IX4, AC Kmsiaof . cv en tubes l owh lsrt he.151 M > 1 7 laft it Lh'l i.in itiTij yon dn St inl...

Mfj E

Call your dealer for your best price Includes FREE AC adapter for meter light More hams use MFJ-949 *s than any other antenna tuner in the world Why Because the world's leading tuner has earned a worldwide reputation for being able to match just about anything. MFJ-949s have been highly refined and have years of proven reliability. Every MFJ-949E comes with MFJ's famous one year No Matter Whar* unconditional guarantee , first-rate performance, unbeatable quality,. T the best tuner value in ham...

Atv

But Brown WBSELK co 3 Magazine 70 Route 202 North Peterborough NH 03458 In early April I attended a high power rocketry event sponsored by the Tripoli Rocketry Association. Lo cated ai a site called the Spears Range, near Manchester. Tennessee, this weekend event drew rocket enthusiasts from several states and featured moderate to very large rockets thai flew nearly continuously during eacn d y from more than ri,ne launch pads. These are not your lypical hobby shop kind ol model rocket some...

June A

PLYMOUTH, CT Radio amateurs in Plymouth wii operate designated s a-tions to celebrate the bicentennial of the Town of Ptymouth. A limited number of special certificates are being made available by the Bicentennial Committee to commemorate the contact Operation will be in the General portions of 1601 60. 40. 20. 15, and 10 meters as propagation aiiows, QSL with an SASE to K1EM. PO, Box 12. Pequabuck CT 06781 USA Include a shipping container large enough to hoW the 9 1 4' x 13 3M- cenifirate, or...

An Inexpensive Morse Code Keyer

A friend of mine recently convinced me to take the examination for an amateur radio license. I hud previously considered obtaining a license hut was less than thrilled with the prospect of learning Morse code. I jrgued that I was as dumb as a stomp when ii came to memorization bat was assured ill at learning code was not as touch as it I realized that the best way for me to learn Morse eodc was to actually generate the sounds, I perused the various amateur radio publications in search of a CW...

Antenna Tuner

SGC Building 13737 S.E. 26th St. P.O. Box 3526 Bellevue WA 98009 Telephone (206) 746 5310 (800) 259-7331 Fax 206) 746*6384 Price Class 595 A longwire tuner for use on land or at sea ny idea what the initials 'SGC stand for lJi you are an old-time ham or you got your start in amateur radio from Class D Citizens Band, you will recognize the name 'Sioner standing lor the letter US, and MGoraf standing for the HG ' in SGC. Don Stoner W6TNX pioneered premium-quality SSB CB transceivers in...

Onl Y A Few L

Book by f Titvlq RA lliisb .l At toviluahk source oi inloftrajiEun oi ever* day relevance rr- lik world - l eloclii rues It ctmuirsnoi milv cttotiv llui deal with the c etm.il theory 1 1 elecimnii crrcuilv. hut it also deals, with wide run e tii pnn licnl c I cc ronic ap > l kjitlons. 8.00 Jtnepti J Cat t Was mit 1 en im dccirnnict hotihyi 10 iroviik in hi mto prjeti-li s work 111 actual ciicuiS. includiag .1(1.1 toe (linearI .md di iuJ circuit- In tin-easy to urnlet-i.muI k> itk thai...

Ham Radio Station Rege Dvorsky

These guys are preparing to launch an ATV rocket that will eventually land amidst a herd of cows. See page 64 for the details. A iongwire tuner for use on land or at sea The perfect The COY2M3EL Stealth VHF Yagi A 144 MHz antenna from Swiech Communications Systems KT2B r s like home liiere right here im iti offices 1 I fust lake advantage nl uut FEEDBACK list on PlIP 17 You'll notice k fbedhuck numbei .M Ehe beginning ofetdi article .util column We d 111. - h to nw ix hat you read so itnu wc...

C W Wolfe Communications

ClRCtE 3 ON R ADEH SfcflVICE CARD AU ,u 3 i ppil Irtil I J) lift Hi -i In m II F r HfiriMrt Jir rMl rv jd< l l< i AS Al* 519.95 19.9J 39.95 44.95 79.95 Compact Only I x 2.5 x T An inch shorter tlian a pack of ciga-lettes Powerful Z-181 high integration MPt with one megabyte address pace. Area powerhouse Inexpensive Onlv US 129 (32k RAM model). Perfect Beginner's TNC hvery feature you would expect in a normal size* AX.25 1200 baud TNC, plus Oil-Line HELP So easv to learn TVpe Help and a...

Circle On Reader Service Card

73 Amateur Radio Today* June, 1995 67 Number 20 on your -eedback cara Marc I Leavey, KID., WA3AJR 6 Jenny Lane Baltimore MD 21208 Somehow, i have ihe incredible need to tell you That this column marks the end ot the 18th year of RTTY Loop' Eighteen years To put that in perspective, my son, vho was an infant when the lirst RTTV Loop' was published, can now vole. Frightening, isn't it And you don't even know my son. Anyway, my mailbox is stuffed with all your comments questions, and suggestions....

Antique Radio Classified

Antique Radio's Largest-Circulation Monthly Magazine Articles - Classifieds - Ads for Pans & Services Also Early TV, Ham EqutpM Books, Telegraph, 40 s & 50ps Radios & more. Free 20-word ad each month. Don't miss out 1-Year 29.95 ( 47.95 by 1st Class) 5-Month Trial - 16,95. Foreign - Write. A.R.C., P.O. Box 802-E9, Carlisle, MA 01741 Or Calf (50 ) 371-0512 T ie World of Ham Radio Callsign May 95 Database You can have the IfeUs) L'S and Foreign culkigns Available. 0,000+ software Flits...

Ramsey Electronics Inc Canning Parkway Victor Ny

For a sftch little QRP boost. use one oi the 20 Wat amplifiers, Needs onty watts oi drive tor full output, linear for SSB AM or CW operation, power MOSFETs for high efficiency and multistage low pass filter lor a c ean signa' 8u it n T'R re ay for automatic switching, runs on 12-lS VDC ai 2-4 amps Adci our matching case set lor a complete station look. Yourchofce oi bands Si 9,95 Specify band (QAlWP-20, 30. 40, B0) CD AMP Matching case sel 514.95 LI (pi fc J COM-3 lhe world's most popular ri i...

BNB

HAMS--NEED COMPUTER RIBBONS Lowest prices. Color or black. State your reeds Free info. Special deal for clubs. HARCLY(F , P.O. Box 830A, Coquille. OR 97423. BNB457 WHY RISK FAILURES With Aerial Supports Dacron rope, high UV resistant, non-stretch Military Type black DOUBLE (unlike our competitors' single) bra kJed 1 -800-328-4773. BN B557 DUPLEXER TUNING GUIDE A complete booklet showing step-by-step instructions on lumng ail types of dupiexers. Included is theory of operation, detailed diagrams...

Netsurf Over To Parallax

We're now available on Internet so you can contact us more easily than before Send email to info amp parailaxinc.com Ftp to ftp,paraliaxinc.com 20-MHz in-circuTt debugging for PIC16C5x 64 71 84 , Set breakpoints, step through code, and modify registers Friendly DOS and Windows software, 599 each separate units for l5xn and xx PICs Programmer for PIC16C5x 64 71 74 84 Docs on disk user-supplied cables 99 Printed manuals cables power supply 199 3805 Atherton Road, 102 Rocklin, CA 95765 USA 916...

Xuron Corporation

XUBON Corporation is offering a new catalog thai includes a full line ot specially hanfi shears, flush cutlers, wire cutters, pliers, crimpers and compact pneumatic cutters for industrial or electronic assembly and field service use xuf ON s Timeless Engineering Catalog describes over 100 variations ol economically designed special purpose shears and flush cutlers that feature XURON's patented Micro-Shear bypass technology which provides a clean square cut using less force than conventional...

Rf

Circulator

RF app ie to Port 1 rotates wilh arrow to Pan 3 with V try Hille loss Circulator showing RF ima n fee low loss from Port JM to Pod wrtti reium reflection due to SWR ratio , Back teed from antenna jr o Port a3 srrd Dialed o For -2 5 absorfceti isapated tn tenrinat on of Port -2 preventing retiecSrlg amp ry power to Port 1. Circulator showing RF ima n fee low loss from Port JM to Pod wrtti reium reflection due to SWR ratio , Back teed from antenna jr o Port a3 srrd Dialed o For -2 5 absorfceti...

Catalog

Outside the u s A send S2 00 postage ALL ELECTRONICS CORPORATION P.O. Box 567 Van Nuys. CA 91408 FAX 818 781-2653 Carote Perry WB2MGP Media Mentors inc. Staten island NY 10313-0006 Most amateur radio operators recognize the relationship between speaking around the wohd and sharpening one's geography skills Teachers who use amateur radio in ihe classroom will attesi to the value of learning geography on a need-to-know basis. Adding relevance and a little fun and excitement to the fearntng...

Arrl Central Division Convention

INDIANA'S LARGEST HAM RADIO AND ELECTRONICS FLEA MARKET EASY ACCESS, 1-465 amp 1-74 AT THE MARION COUNTY FAIRGROUNDS COMMERCIAL EX LIB ITS INDOOR AND OUTDOOR FLEA MARKET FORUMS OVERNIGHT CAMPING AVAILABLE PRIZES Write or call Indianapolis Hamfest Association, P.O. Box 88677, Indianapolis, IN 46208 317 251-4407 FOR INFORMATION CALL 504 924-7708 FOR INFORMATION CALL 504 924-7708 HAVING PROBLEMS TAKING TOWERS DOWN We're sure you're aware of the back breaking work involved in uncoupling tower...

Info

Army and component data for the new Roanoke Ooppiet Switcher for three popular bands. You can easily scale the array for other VHF- UHF ranges. sides is given by the formula D 2630 F. where D is o is a nee between adjacent whips m inches and F is received frequency in MHz, This distance is not critical but use care to place the whips in a perfect square pattern on the roof and align ihe array sides parallel to ihe sides ot me vehcle. Ii s tedious to set out me whips using lisi a ruler...

The KK from AEA

Have you ever had the perfect ham accessory and then lost it somehow never to find it again7 I think that each ot us has, at some time had the most wonderful ham-related item and then sold it. traded it or broke it, losing il forever, in my case, the perfect CW keyer crossed my palh about 10 years ago in the form of the Heathkit CW keyboard It performed flawlessly. With a large type-ahead buffer, soft sectored memories, and the easiest operation possible, it became a good friend until, in a fjt...

Battery Monitor and Charger Controller

Many hams have a 12-volt automobile battery under the operating table for a variety of uses. There is a continuing need to know the batter voltage and to keep it charged, A hassle-free means of solving these two problems is offered by the battery monitor and charger controller described in this article. Thiv unit displays the battery voltage on a 10-segmenl bar LED in increments of 0,5 volts over the range of 10.0 10 14.5 volts. When ihe batten voltage drops to 12.0 volts the unit automatically...

The Coymel Stealth VHF Yagi

Simple Gamma Match

A 144 MHz antenna from Swiech Communications Systems. While doing some cEeanup this pasi spring in my amateur radio barn a small shed in my back yard full of masting, antennas and coax , i came across an ofd, beat-up. bent dented and otherwise Cashable KLM four-element 2 meter yagi I ve owned this particular antenna tor about 14 years and it has really been through the nnger. accompanying me on over a dozen mountaintopping trips, more than a few Field Days, and several public service events. It...

Rkk

Figure 1 The schematic for the BayCom RTTY interface MichaeiJL GtherKBWM c o 3 Magazine 70 Route 202 North Peterborough NH 03458 In this column, I have many limes menjioned the use ot Test equipment ranging from ihe old-style analog volt-meler sfi 1 a useful item jn mis digital age lo the oscilloscope. Taking proper measurements is one of the mosi important skills in electronic troubleshooting constructing or experimenting. At firsl thought, ihe process of taking measurements might seem s mo e...

Amtemas

Hustler. KLM. METZ. Urban, M CUBLOX. TONNA, Butternut. Multi-Band YAESU FT-23R 26 76 FT411 11-911 FTH-2008 700Q JCOM CC2 3MSAT ICQ2AT 2SRA IG2y4GAT 24AT C-A21AJ1B Patches telephone calls from your radio to phone line, Great for making and receiving phone calis where there are no phone Sines, Simple to use. Write or lax for inquires Arrtentnyr. Icoti Kenwood. Yae amp u

JUNE

BROOKLYN, NY The Kings County ARC will operate WA2ZWP 1400Z-23G0Z to commemorate the i70th Birtiv day of Fort Hamilton Army Base, Freq. 3.943, 7.243, 14.343, 21.343T 28.343. For a certificate, send OSL and aS'x i2m SASE to Lenny Uannelb KB2HQE. 2512 West 1st St, Brooklyn NY 11223 MT CARMEL, IL The Radio Amateur Qownstate EL Organization will operate Club Station WD9GTW 1700 UTC-230G UTC, at the Old Time Radio Days 100th Anniversary of Meisner Radios. You win find them on the General phone...