Wpho Sk

Well-known DXer Bill Bennett W7PHO died at his Seattle home early on Wednesday, December 23rd. Bill was probably best known as the founder and moderator of the W7PHO Family Hour Net. The FCC has denied a petition, RM 5924. filed by KJ4JE, which requested that a Novice examinee begin operating immediately by using a temporary callsign consisting of the calisign of one of the volu nteer exam iners plus a unique numeral. The FCC said that the application processing period is not unreasonable and...

F

Photo A. (From left to right.) Kenwood TR-2500 handheld 2m transceiver with stock rub-ber-duckiel stout helical, standard rubber-duckie replacement, helical quartetwave, full-Sfze Va-wave, and collapsed 1 2-wave. A ham often considers replacing the rubber-ducky that came with his handie-talkie with something thai has better performance or a more compact size, What gain do these high performance models actually have On the other side, how far down does communication effectiveness go with a...

Ramsey Frequency Counters

MINI KITS EASY TO ASSEMBLE-FUN TO USE-FOR BEGINNERS, STUDENTS AND PROS Aj inciutt high quiiitf 1 1.10il twh fft Dr& Ott iruirudw -' rvice mirud wiih ithnrt'-c ind awponHii laywi 1 yor kwnnty. MINI-1QO COUNTER CT-707 DIGIT525 MHz CT-909 DIGIT600MHz Flamsey Electronics has been manufacturing Electronic lest gear tor over 10 years and is recognized lor lab quality produc s at breakthrough prices Our frequency court ters have features and capabilities of counterscostiig twice as much.

Circle B On Reader Service Card

REPLACEMENT PARTS. FACTORY SERVICE, NEW PRODUCT INFO. DOMESTIC. INTERNATIONAL DEALER INQUIRIES INVITED. POBoiH E. Rocfciwir, u Nnisil, USA TLX 4759244 516 36 2620 MarcL Leavey. M.D. WA3AJR 6 Jenny Lane PtkesvilleMD 21208 Spring is finally on the horizon, and new things are blooming here at WA3AJR The mail's been hot and heavy on the January Color Computer RTTY program Many of the readers have been typmg in the program from (he magaz ne listing, and others have been...

Technical Information

Ff 3652 West Cypress St., Tampa, FL 33607) < > FLORIDA ADDRESSES ADD 5 , 3.00 SHIPPING HANDLING PER ORDER. FAX (613) 672-9696 * ONLY 0 EACH * * 30 OAT FREE TRIAL * * To order, send 30 check or money order Specify Modef If not completely satisfied, simply return withtn 30 days for a lull and speedy refund. it All models Jn stock One year warranty * FaSi. free delivery Quantity discounls to 50 P.O. BOX 8332, PEMBROKE PINES, FL33084 cqmIii in Dn your cable cin be mpleteiy remmi wilh this...

Info

Vi Vi-* Sut, Sm -j J1 T j jjL r Day, Ireland and USA 21 Vernal Equinox Day, celebrated in Japan 23 Pakistan Day 27 Armed Forces Day Burma. 28 British Evacuation Day, Libya 29 Youth Day in Taiwan, We're oil to a good start on the task of untangling the whats, whys, and wherefores of applications lor permits to operate in countries other than your own. In the box you will find the headings Change, Comments, and Special Requirements, Under the firs will be changes to make on the...

Gavwa Match

General mtrnna layout and Gamma mutch 1 eta if wire connects the SO-239 to the arii iblecupm hi Th e t it tict t n a re sot tales at 28.41)0 MHz. The S WR < u ross the ten meter Novice Iiand < 28. to 28.5) ranges from 1.18 to 1.6 1 Three methods of matching were available. The Delta-match would have required a matching section about meters. My very meager junk box produced only one 100 picofarad variable capacitor, Back to the drawing board. The Delta-match might be cheap, and the...

We Welcome Inquiries From Clubs

P0 Bqi UTfc SertiniPir* UD214* P0 Bqi UTfc SertiniPir* UD214* New* K2RAG API Band Linear Resonating Stoper RAG-S 1A (3D0F20 t nla lar* * Broadband t to 50 MH nne hakm hmts * I * i. (Laue A M NN A F Fil H I ME PflOl EC TOW ei miFUiirt ct miw jd ' CJ. . onnQfiflsnS New* K2RAG API Band Linear Resonating Stoper * l ntinuotJS .( i sqr 'JO MHi autDmati'. band aw i tuny Antenna Systems nc 14465 SWHa elnil DR Tiga OR 97324 U S A 503-684 350 of Hairi ftndq Amennos i (tw W.95 f FREE d you cird r pr duci...

Professional Monitor Receiver

Wide band FM amp AM Recel circuit - Microprocessor control ed PLL Fr qusncy syfflhesrzed suoertieterwtyne type Yjitn hign Jevei doumed balanced mmer Receiver IF - 750MH1 45,03MHr, 5.5 MHz WFM Sensitive Nf M-0.35 V 12dB SINAD WFM-1 00 uV l2dB SIMAD AW - VOOuV lOdflSNl 20KHZ 7DaS WFM - - 50KHZ ii 6d amp 25GkH7 f 6008 AM 5.0KHZ 6dB - lOkKz a 70dB Mum amp er oi nemory n i gt ario-e1 - 20 tfiannels Scai raie - 5 charmes per second Search rate - acorns ptt MHz Ai itjta...

Simple Amiga Terminal Program

OPEN COM1 300.N.8.1 AS t WHILE 1 WHILE LOC lt 1 gt 0 PRINT INPUTS 1,1 WIDTH 77 IF IS gt kH THEN PRINT 1 J WEND Gia it 3 day flea market Exhibits License exams Free bus service CW proficiency test Door prizes VMS video presentation about the HAMVEFTTIOM is available for loan, Contact Dick Miller, 2853 Cresta, Beavercreek, OH 45324 Flea market tickets and grand banquet tickets are limited. Place your reservations early, please, A maximum of 3 spaces per person non-transferable , iickets valid all...

Self Stu Oy Course

Prepare for the fantastic world of amateur VtiJio. Study at yoiit leisure. No technical background required, Entry level amateur radio operators can now talk on the ten meter band and FM repeaters .even link their ham radio stations to the public telephone system and personal computers. Privileges never before available to the beginner Complete FCC license preparation course contains everything you nred to know to pass both the written and Morse cock- examination in a very short time Written in...

Ham Radio

Tiare Pubticabons Guide to VHF UHF Ham Radio Hustler is proud to announce the development of two new series of magnetic mount antennas Rated at 100 Watts, the RX series pictured horizontally consists of a wave, 3.4 dB antenna on a magnet mount which holds at speeds to 75 MPH, The RX-2 2 meters and the RX-220 220 MHz are chrome with a black mount and coi cover Both models carry a suggested list price oi 20. The RX series is avaiiable in all-black versions, models RX-2B and RX-22 B. each of which...

Circle On Deader Service Card

The 200D appears in the accompanying photographs identical to the 200-watt model that appeared in the 1984 QST review. Note the toroid and several other devices, which are almost certainly power resistors. Max-corn's reply Correspondence ' June 1985 QST to Hall's review indicated That the fer rite transformer is connected directly 10 the S0 239 input.,T Further, the resistors in the unit .are connected to the output of the transformer to create additional RF loading. That arrangement was...

Kenwood Ts Owners

Are you frustrated tuning in SSB amp CW signals because oi the too fast mam tuning rale of 10 Khz revoM 5 Try the NEW Copyrighted Giehl Electronics Software Kit ___ Main lunkng fate of 2 K hi revolutiOn LS6 USB. CW 4 FSK M n tuning rale oi 20 Khz revotutbOn AW A FV Tutiirkg raie automancsJfy incieases wnan ttw fcnoto speed exceeds 2 turns per second Lo rrtaWe the Song OSY's tasi Split dot CW problems solved Easy Id install fsjmply remove Ihe Old IC chip from ils socke and plug m lhe new Giehi...

A to Z RFI and Transformers

The Technology Dictionary edited by Charles Battle Master Publishing Inc. IM7 6 9 soft bound, 174 pages, Sb New on the shelves at Radio Shack these days is The Technology Dictionary a paperback meant to keep ihe business, school, or home abreast of meaning of ierms of the leading-edge technologies The dictktnary contains 2500 current and not-so-current terms 150 of them illustrated with line drawings or photographs. Covering every thing from Abacus io Zero Suppression , the book cans heavily...

Bilal Company

COSOBl l'H 7 i 9 065 0 ATTENTION IBM CLONE AEA PK-232 OWNERS Send and Receive facsimile image pictures from your Video Monitor screen not just your printer . Save pictures to disk. Set your computer to record FAX pictures while you are away. And lots more Details in the December 1987 issue of Subscriptions just 20 a year 10 issues . Signup and SASE brings software details. P.O. Box H, Dept. IBM yfiBBjk Lowden, Iowa 52255 lt Ji _ rt T 2 Z WrfUHGTUi Q1 F gure 3....

Configuration

With 4 1 of d3 S N ar the a ire in te amp dpemt r 7 dB S N at the 1296 Hhz receiver over i S ' unit . Antenna 2 K 23 element yagi 2i dB' FeedJlne B hardline, 100 ft. -3 dB With a signal of 13 dB S h at the antenna feedpolnt, It will 10 dB S.N at zhe 1296 tthz receiver almost 2 'S1 unite . PRKft LlF Efl CQHF GFURATION 9 mth h signal o 13 dB S N at 20 B S N at the 1296 Mhz receiver 7 8 hardline, 100 ft, -3 dB IS dB at station. 2 dB HP U dB the antenna teedpoint it...

Circle On Reader Service Card

Maxcom Antenna Tuner

Lauderdale FL 33312 Price Class 200D 599 XLD-150 299 You've seen the ads One antenna 100 kHz to 200 MHz . absolutely no tuning VSWR 1.5 1 or less.11 Perhaps you've seen I he reviews thai have appeared elsewhere, which have ranged from me critical Hal Is Product Review. November 1964 GST to the enthusiastic Gordon West's Maritime Mobile' column, December 1983 Woridradio . So which is it you might ask. Do the Maxcom units work or is someone trying to pull the wool...

S

Postage and Handling S 1.00 Total Enclosed Mail your order to 73 Magazine. WGE Center, Peterborough NH 0345S. Attn Uncle Wayne. Mike Stone WB0QCD PO Box H Lowden IA 52255 In several years of polled studies the USATVS Untied States Md paint OT etAter ai lot be vi er, L 11 I loop 13 n G L mCujttT.fl CO itir of Icopf Calibrated I ret a.e diapou Measured Tes Retuftt Md paint OT etAter ai lot be vi er, L 11 I loop 13 n G L mCujttT.fl CO itir of Icopf Calibrated I ret a.e diapou Measured Tes Retuftt...

Penntek Instruments

Penntek Instruments announces the introduction of its new SA-500E 550 MHz Spectrum Analyzer. When connected to your X-Y display or oscilloscope, this instrument alfows Irequency domain signal sewing with an onscreen dynamic range of 70 dB. The display center frequency is adjustable from 1 to 550 MHz and is shown on the front panel digital meter. A precision 70 dB front panel RF input step-attenuator is included as a crystal-controlled frequency marker at 5 and 50 MHz intervals. Il can be used...

Beacon Transmitter

This transmitter can be used for transmitter hunts, as a remote hey finder or radio telemetry model rockets , it can be tuned to the two meter band or other VHF bands by charging C1 and L1. L1 Is 4 turns of 20 enameled wire airwound, V in diameter use a drill bit , 5mm long center tapped, The antenna can be 18 of any type of wtre, IG2 functions as an audio oscillator that is turned on and off by IC1 about once per second The range of the transmitter is several hundred yards.

Notch Filter

Automatically notch out heterodynes, whistles Get rid of 'tuner-uppers' on NET frequencies, second is typical lock lime covers 270 Mr. to 3.5 Khz. Auto Manuai operation in Notch or Peak modes, 13 racket w DTMF, speaker amp volume controls. Upgrade your 'mobile' image Specify YAESU, 1COM Or KENWOOD, HSC701Y, I or K 79.95 si. ups

Amateur

Your home computer or even a simple terminal can be used for radio data communication in six different modes. Any RS-232 compatible computer or terminal can be connected directly to the PK-232, which interfaces with your transceiver. The only program needed is a simple terminal program, like those used with telephone modems, allowing the computer to be used as a data terminal- All signal processing, protocol, and decoding software is in ROM in the PK-232. The PK-232 also includes a no...

Iai

Meter Isopole

I Offer valid w a I imilrd lime onJ gt Canadun foreign surface imlen 2 per yew 12 i amp uet U.S. fundi Ptcaa WJou 4 6 wwi far descry o fint iuK Fr pifii ire vniwpatd MibscnlWf onJy Ma i iMjpu n to 73 1 moirur Radio , P.O. l anmn ilal h 11737-'WJI ' 7S 6BC Outstanding mechanical design makes the IsoPole the only logical choice for a VHF base station, especially for Packet operation. All Isopole antennas yield the maximum gain attainable for their respective lengths and a maximum signal on the...

Microwave Antennas And Equipment

Lofip y qli Pow lt OlvltftfB Llnw Ampiltini Qompl t Arr yi M crowdvfe T ri v rtBri GiAiFETPnimpi t TROPO tHE w ik signil OSCAR - 902 1 1ZM 23M 400 3400 M Hi 1344 LY M loOpYigJ amp 4MH1 001 80 33 3 LY 33 1 fWf gt r Ji MiMMj IAMBI W3 Aoov 4nt nn t u rnt gt r o vti tuivi KiH ntiMM All Aiurnfcoym Hd 5iunl u ConmiructJon Add 18 UPS S-x. ftl M t of ihs m inns 23iSPALtftiirArni 1 W in 18 gt V Hill WHl 13 5V IJSOppti 2335 PA LLftMi AmplOW in Woul I MMHi 13.5V, SM0 pod NEW MICROWAVE TRANSVERTERS BYLMW...

Computer Interface Aea Pk

Enjoy SHORTWAVE or EXTEND frequency for YAESU FRG9600 and ICOM R7000 radios The following have PL259 conneciers for YAESU FRG9600 FC9G5DX 149,95, 20 kHz - 60 MHz, FC130Q 199 95t soo MHz - 1300 MHz WA965 , 109,95, 30 MHz - 1.5 GHz. Conlm console for ease of operation switches converters and antennas in out, FC7000 for ICOM R7000 with type lN' connecters. 20 kHz-60 Mhz. . 159 95 FC965DX, FCJ300, WA965 amp FC700G can be used without Control console and arc powered from FRG9600 or R7Q00.

Atr Tuner

The Ameritron ATR-15 is a 1500 watt Tf network tuner hat covers 1.3 through 30 MHz in 10 dedicated bands. Handles fall legal power on aJI amateur bands above 1.8 MHz. Five outputs are selected from a heavy duty antenna switch. The ATR-15 has a peak reading watt meter, SWR bridge and a dual ratio balun. Size 6 H, x 13Y4W W. x 16f' 0, Available at your dealer Send for a catalog of the complete AMERiTRON line. AMERITRON, Division of Prime Instruments, Inc. 805 Walford Avenue Cleveland, Ohio 44102...

Delaware

F cturv authort ed dealer' Yaesu, ICOM. Fen-Tec. KDK. Kenwood. AF A. Kantroaks Saniee. Full line of accessories. No ales tax in Del wire. One mile off 1-95, DELAWARE AMATEUR SUPPLY, 71 Meud-ow Road, New Castle DE 19720 302 328-772 . Delaware's friendlier ham store. Also Shortwave up-plies. AMATH R amp ADVANCED COMML MCA-1 if gt S, 3208 Concord Pike, ilmrn toii Dh I9A03 I302M78-2757.

Model

'ICS Intermittent Communication Service 50 Duty Cycle 5mm on 5 min. off made from RG-11 U and also specifies a 50 ohmfeedpoint impedance. The test range was configured using a KLM wet noodle dipole driven element the remainder of a KLM 4-element yagi thai died on a DXpedition atop a collapsible mast. 200 milliwatts of power at 2 meters were connected to this quasi-tropic h radiator for the express purposes of measuring the fronMo-back ratio and the sidelobe rejection of both 4-ele-ment yagis I...

The Power Boosters

Worid Systems Engineering's WP-727DX Dockjng Booster can be used with the Yaesu FT-203, -703R, -209- -709, and -727 HTs, The boosted HT in this review is the Yaesu 727R dual-band handie. It is an attractive and compact unit a matte black aluminum case measuring 6' wide x tail x 2 deep. The 2 widedoor mounting brace fits over the door panel between the inside face and the door window. The test vehicle was a Dodge Colt on whose door panei the booster fit perfectly. The FT-727DX is a...

Datong Direction Finder

Compact snlid state POWER Amplifier in 30 or 50 watt model's CALL FOR DETAILS. MICROS Standard Turn your HANDHELD into a Mobile Giantf 1 Doppler DF system for FM receivers, User attaches his own coax, antennas amp speaker. Normal transcrive operation ven while DFing 20 - 200 MHz, dependant on users equipment

Eio

The all-new TH-25 Series of pocket transceivers is here Wide-band frequency cov erage, LCD display, 5 watt option,plus,,. Frequency coverage TH-25AT 141-163 MHz Fix 144-148 Ml z Tx Modifiable for MARS CAR Permits required TH-45AT 438-450 MHz, Automatic Power Control APC circuit for reliable RF output and final protection. - 14 memories two id any 01 id split 5 kHz steps . Automatic offset selection TH-25AT f 5 Watts from 12 VDC or PB 8 battery pack. Large multhfunction LCD display Rotary dial...

Changes

Add Submit 3 copies o application And from CT4UE. who also thinks this a good idea, ho lirst poim should be 1 The rulos ol Radio Amateur Relations in force m iito country of operation fThe presen poinls now become 2 through 5 Change Nothangesyer bu lt wa Comnwnts May the New Year Bring you a Basketful of Happiness and Joy ,r Byong Joo Cho HL5AP Australia. Details next month Australia celebrates its Bicentenary this year VK4MU WIA Queensland Division Secretary reports much confusion at EXPO and...

Circle On Reader Service

Output, system performance offers something ciose to reciprocity the station I can hear can also hear me. Running a simple GaAsFET preamp at the shack of about 10 to 12 dB with a 1 dB noise figure makes it somewhat easier to hear those stations just above the noise level without much additional noise. On the other hand, installing a mast-mounted preamp probably requires a boost in output power levels to almost 200 watts about a 4.5 dB increase to realize any benefits Olherwise. I'd be hearing...