Codemaster V

Codemaster V is the only computer-based Morse code training system tha ouarsntees tirvt tt mri nirn i.t * 1 RESULTS Whether you re a beginner oTwarit to break the 30wpm barrier, is will take you as far as you want to go and it's fun Codemastei V has a wide variety of training and practice routines, trial exams, interactive arcade game, and much mote. CMS can use multiple Morse alphabets inducting foreign characters, and it's endorsed for military training For any IBM compatible PC. S. B 5.00...

Get Your Juices Running

For 3 you can get a 78-page catalog of antennas, baluns, antenna accessories, wire, eoax. and connectors. This'll gel you going, trying Lo choose among a variety of windoms and loop antennas, tor HF and VHF but his is lots more than just a catalog. Check it out, the Radio Works, Box 6159, Portsmouth VA 23703. Your HT and rubber ducky radiate poorly inside your car it's a fact of life your car roof in a shield. Clip the MFJ-310 to your window, however, and the QSO range is dramatically extended....

The Best Battimes

T n-RASER phased array switching phasing unit. Packs & Charger for YAESU F T-5 R 40R 10R FNS-iOxh sw n*** 7.2v 65QmAh 41-95 FNB-47xh i i 7.2v 1800mAh 49.95 FN8-41xh 9.6v 1000mAh 49.95 BC-601c Rapid Trickle Charger 54.95 For YAESU FT-51R 41R 11R FNB-31 pack 4.8v 700mAh 31.95 FNB-38 & (5wi 9.6v 700mAh 39.95 BC-601b RapidTTricKle Charger 64,95 For YAESU FT 53Q 416 816 76 26 FNB-26 pack 7.2v 1200mAh 29.95 FNB-27s pk (5w> 12.0V SOOmAh 35.95 BG*601a RaprdrTnckie Charger 64.95 For...

The Shelby Hamfest

What are you doing the weekend before Labor Day Larry G. Ledford KA4J 553-4th Street S.E. Clevetand TN 37311 ka4j juno.com One of the fastest-gruwing hamfests in the Si> Lith is held in Shelby. North Carolina. humvention . it bears many similarities. Both are held in smaller communities in their respective areas and attract larger crowds than their larser-neighbor hamfests. had the pleasure of attending the 1997 hamfest, w hich w as the 41 si year it had been held, Shelby's been called the...

Info

Consumer Price Index CP conversion factor chart 1950 through 997. To convert from a prior year divide dollar amount by conversion factor e.g., 1950 price of 425 is divided by con version factor of 0.163 to get 997 dollar value of 2607. To convert from ihe present, multiply dollar amount by conversion factor e.g,. present price of 1995 is multiplied by conversion factor of0225 to get 967 dollar value of 449. Table 2. Consumer Price Index CP conversion factor chart 1950 through 997. To...

L

The 200 k resistor between pins 11 and 12, with additional trimming provided by the filter ol the 0.005 iF capacitor and 100 k resistor coming from pin K. Naturally, with a circuit operating at TTL levels, the output from this one-chip wonder is at TTF levels, So don't try to drive a Model 15 with it at least not directivT To interface the demodulator w ith the RTTY loop, we use one of my all-time favorite devices, an optoisolator, to convert either a TTL level or RS-232 level to the more...

Eprom

After the end of the message, the next EPROM address is programmed with FOh, so that 04 will be high but OO will be low, This results in hoi h inputs to IC5c being high, which forces its output pin S low. This causes C9 to discharge through R14, eventually driving the input of IC5b low. Then, the output of lC5h goes high, producing a high level at the pin 11 clear input of counter ICI. resetting it to zero. ThU starts the message cycle over In addition. C9 holds tl e voltage at pins 4 and 5 of...

Digital Frequency Readout

4 For detailed information and prices, call or write for a our free catalog1 Mct d99 hmts toi-i tar t r . ssj do CHS-fl Capptt S yc jf.f S i i S24 Low Pau Fititrt up lo 300W tor inapcnornc Spect gt 10M 15Ul KV C J flOW or IMM HF pUtl4f4 and Comb r up io JKW Mdbxn Jm - Sn ri fno t Phone 937J426- J0 a 9J7H29-38I L U Add 54 50 tw sfcq Kng a landing Mdbxn Jm - Sn ri fno t Phone 937J426- J0 a 9J7H29-38I L U its value today. Collins equipment sold for the most money then, and it still docs today. WRL...

Departments

10 Raising the RASER to New Heights - W20ZH 15 Build This Simple CW Identifier - KA2CWL, K2MQJ Secrets of stuff you ihought you knew. Heading for a hamfest Tempted by the timeless 29 Home-Brew RF Ammeter for the Shack W4LJD 34 Take the Jekyll and Hyde Test - W2CQM 42 Mega-Mini Mlcropower Timeout Switch N4UAU Here's a great excuse to play with SMT

Are You Burnt

Sure, amateur radio is a great hobby, and the public service that we provide is invaluable But at the same time, it s possible to get too involved and burn out or overstress yourself. As an aid to determining whether you are a candidate for burnout, rate yourseif on a 0-5 scale on the folio wing questions 0 never, 5 always , then add up your score and see where you stand at the end of the test. 1. Do you tire more easily Feel fatigued rather than energetic 2. Are other club members annoying you...

Fantasy Time

Novatech Instruments, Inc., announces three new versions ol its popular 2950AR Rubidium Frequency Standard. Dubbed the 2950AR 01, 02 and 03, these versions pro idc additional output frequency combinations w hile maintaining the 5xl H' monthly stability of the 2950AR. The 2950AR 0I prov ides three 10 MHz outputs tlie 2950AR 02 provides 10 MHz. 5 MHz and 100 kHz while the 2950AR 03 provides three outputs of liny customer-specified combination of 10 MHz, 5 MHz. 1 MHz. and 100 kHz. The 2950AR 01 is...

Mfjc

MFJ's exclusive Self-Resonance Kilter MFJ-989C world famous 3 KW Antenna Tuner Two massive 250 pf transmitting variable capacitors with extra wide 0.27 inch spaced stator plates can handle 6000 volts and amps of RF current for arc-tree operation. Lighted Cross-Needle meter lets you read SWR, forward, reflected power simultaneously. Read peak and average power in two ranges. The MFJ 989Cs six position antenna switch is made of two individual ceramie wafers wired in parallel. Wide spaced, heavy...

Rtty loop

O, Box 473 Stevenson MD 21153 ajr aiinetl A tradition lias arisen with this column It is Jul , and it is another anniversary. This month begins the 22nd year tit RT W Loop. Twenty-two years can ou believe it When this column started, my 011 w as noty et born now he is battling his way through higher education. When this column was starling, a popular question concerned some of the basics of radio- teletype, like w Such tube circuit to use as a demodulator And now...