Radio Amateur 10-1984

Bilal Isotron

Antenas Isotron

When Ihe box arrived in my office last Wednesday, i remember thinking Even Ralph Biial couldn't fit a 40-meter anienna into a package only 33 x 6Yz x 3. . . why, that's smaller than the boxes most model airplanes come in Ralph had promised to send me the latest version of this Isotron 40, a small, versatile antenna designed for limited spaces such as apartments, condos, campers, and Ihe like where it is almost impossible, for either legal or physical reasons, to put up a lull-sized antenna,...

Doctor Dx From

It was Saturday momlng, and the CO WW X Contest was In full swing. As my wife walked past the shack, she voiced her familiar Are you going to be on that radio all weekend complaint. Moments later she remembered thai I didn't have an antenna up Obviously something strange was going on. for the sound of a raging contest was pouring out of the station speaker even though the hg was turned offt I've been blessed with an understanding mate, I explained that, yes, I would be contesting all day...

Worked Trumbull County Awards

The Warren (Ohio) Amateur Radio Association. Inc.h announces its Worked Trumbull County fWTC)1 Worked Trumbull County Mobile (WTC-M), and Worked Trumbull County YL WTC-YL) awards. These programs are designed to promote increased amateur-radio activity among and with Trumbull County amateur-radio operators. The awards also reward operating achievements. Application Send applications and all correspondence to Don Lovett K3BXT, Awards Chairman, WARA, PO Box 809. Warren OH. One dollar musl...

In Usa Larsen Electronics

11611 N E 5 TH AVE RO BOX 1799 VANCOUVER W1A 90666 20e-573-2722 tN CANADA CANADIAN LARSEN ELECTRONICS. LTD 283 E 11TH AVE UNIT 101 Vancouver BC ST2C4 604 872-8517 Here's a shock Youve been wasting money on towers and poles. W1GV explains why low antennas may outperform high-altitude aluminum. Stan Gbilisto W CV 4 PO Box 561652 Miami FL 33156 Fig, 1. During the hours of daylight* the ionospheric F layer sometimes splits into fwo parts, as shown at faI These regions occur at altitudes ot about...

Voice Operated

Fits inside most HF-SSB transceivers. Requires voice to activate. Ignores noise and hetrodynes. On off switch only no adjustments Connects to audio leads and 9 or 12 VDC. Fufly assenbied and tested 99.95. Complete with comprehensive manual. Used worldwide in commercial and military transceivers. COMMUNICATIONS, 5479 Jetport, Tampa, FL 33614 (813) 885-3996 - at last *, -your shack organized A beautiful piece of furniture your XYL will love it Designed with angfed rear shelf for your viewing...

Control Specialties

See Lisi of AttvfJ'sers or page 96 John 5. Wilcox KS4B 640 Breton Bay Drive Leonardibwn MD 20650 Build an 80m DX-getter that really grows on you. Eighty meters is a fun band. Something for everyone is the byword. From the diverse nets entangling the top end, through the casual groups and rag-chews in the spectrum, to the well-populated CW band, you are challenged not to find an entertaining operation. DX, especially in the winter months, is surprisingly good With the sunspot cycle approaching...

Yrd Comes Home

On March 24, 1984, Roger de Weaver 9Y4RD returned home for a well-deserved three-week vacation. Many of the DXers out there will be familiar with Roger's call-sign, which has popped up in the past two years from such good DX locations as SU and ST , and Ihey may have received his attractive and amusing QSL, At the monthly general meeting of the TTARS held on April 2nd, Roger was our guest of honor and addressed us for about one hour on his experiences in the Middle East. I was also privileged...

Prices Subject To Change Without Notice

CAMELBACK ROAD PHOENIX, ARIZONA 95015 rEfiw DOMESTIC PmeptW > .0.0, gwdTt Cfud FOfiElCN1 Pffti.'idHil f lr. U-S runtjii, MijrlDy Ofll(rf. < lr Ciiih Qr . ChBCi Only Ci.O.O.- c-saptatili by tenephona tr ir. il Pa--mfinl from cus or7,er iw,ll te by Casfi, Wone* Oroei. c r Cashier's Check We arrj soriy bul jje cannol pfliaiiiidl checua lor C.O.D.'s C.O.P & bis amoped by aii only and 1tiru Unned Parcel Sarviiii. COHFIRHINC ORDERS We vtiulj pwlf . ihii on1inv.l-g oideK it sanr aNer...

Beckoning Beacon

L have had a beacon operational for over a year. The beacon is on 24 hours a day. seven days a week Although I have received many OSL& from around the country, a hi He publicity of the beacon's Irequency would be very helpful. I have placed me beacon high in Ihe six-meter band so as not to interfere with local activity and thus it ig not easily found- The frequency is 50.440 and the location is Surfinglon, Con fflctteut. OSL to KiNFE ai PO Drawer M Plainville CT 05062, J noted in your July....

Tss Filters

For superior performance at lower cost, use toi rated 8-poie f-ox Tango crystal filters to fill the optional spots Jh your rfg For example, our 1 BOO Hz FT2808 equivalent of the YK88SN has 60 6dB shape factor of 1.7 compared with 2.0. a price of S55 vs 63, and squarer shoulders ai the top wiih steeper skirts all the way tfown to more than -SOdO For more pleasant atudio use our 2100Hz for SSB and or ou r 6oooh2 for AM For CW. ou r 400Hz unit is better than the YK88C while our 250Hz is sharper...

Aes Branch Stores

6 I Commonwealth Ave Phone (305) 894 3238 Fla WATS 1 S00 432 9424 CLEARWATER, Fin. 33575 1898 Drew Street Phone (813) 461 4267 No In State WATS to 1-800-327-1917 Ho Nationwide WATS LAS VEGAS, Nev, 89106 1072 N. Rancho Drive Phone (702) 647 3114 No In State WATS ERICKSON COMMUNICATIONS 5456 N Milwaukee Avenue Phone(312)631-5181 State of the Art Kits by Hal-Tronix, Inc. KEYERS AND OPTIONAL MEMORY KITS ACC HfVEnKiT Hi- iHUt MXUM vFfl MT n ii VlidF PVEHUlONOf Tut FAMOU VF ACCJJKFV ER. BUT WITH SIDE...

Special Offer

R HJTfHt Kaiii'fPAN HOIOP*X TOGfTHEP 7 U* CkMI Tf M ItHflmOh TOflE FhEP - F tJ- H f A'. Ol i t*tA L tout IClGfKLflATE DOTS AND DASHES n> TOUCH OF FlhGCP ' O HOVlHa p mfji covn COmPIITI WITH ALL ftiCTH0*ie m l SS CAM AKD poiyer SUPPLY VARIOUS CLOCK KITS H LUKiiM'min m HUH 1T E . i ' c*. > 4aumwu4i COMPETE LESS pcwvepsvpp AOAFTOH AXD CAM ituhS Oii 'iivOLFiC itwnri hiou'flti no WA 6DKHT ELtCTHOWCUJCHlUT FCWMAT OULT OPERATE ON tZVQLTS A.C Oft DC HA5 r. E BASE OHMAftD owts f Tf JM Ortf AOAPTW...

Wantedmilitary Surplus Radios

We need Collins Sisl . 548U t v 426U2. UHF719A 6ieT ARC 91 ARC 102 RT-712 ARC 105. ARC tt4. ARC-115, ARC 116 RTS 3fARGl3l fM622 W.Icoj 807A or RT-857'AflC 13J. ARC 159 ot FiTM6dAHCH6-i ARC-174 NT I299'ARC 186 AP gt 7 APN 171 MRC-98 7I3F1 2 HF 105 Cohins antenna couplers 490T t 1 amp 0T 2, i90T9 CU-165 amp A ARC CU t669. GRC. CU 1402'ARC 490B-1. CU 1239'ARC 105. Top doUir paid or trade to new ama leur gear Write or phone Bill Slop. Slop Electronics Company, Highway Otto NC 8703 704 7519. 8NB204...

Philippines

Afmazan WAGLOS DU2 7 0098 Knight Drive San Diego CA 92126 In my iast column I wrote about the amateur-radio scene in the Philippines today. After a rather nice lengthy QSO with a W7 ham from Seal tie. Washington, who happened to be in he Philippines before World War II, he not only told me how they used to DX on 40 meters with RCA s CW rigs, and Arc-50 receivers coupled to high zepp antennas, he also sparked my curiosity about the history of amateur radio in the Philippines After taEking...

Indoor Tuned Active Antenna

World Grabber rivals or exceed) reception of outilde long wlret UniQue tuned Active Antenna minimizes tntermod, improves select ivity reduces noise outside tuned band, even functions as preselector with external antennas Covers 0.3-30 MHz. Telescoping antenna. Tune. Band. Gam, On-olt bypass controls 6x2x6 in.Uses 9V battery, 9-18 VDC or POLICE FIRE WEATHER 2 M HANDHELD CONVERTER Turn your synthesized scanning 39.95 2 meter tiandhefd into a hot Police MFJ Fire Weather band scanner* 14 -14S MHz...

Mf I Btty Cw

FTWARE m TAPE, tIG T0 )Njby COM-AFj 1284 Nmvifraa Now MFJ-1224 RTTY ASCII AMTOR CW Computer Interface lets you use your personal computer as a computerised full featured RTTY ASCil AMT08 CW station for sending and receiving, Plugs between rig and VIC 20, Apple. TRS BOC, Atari, TI-99, Commodore 64 and most others. Use MFJ software for VIC-20, Commodore 64 and Kantronics for Apple. TRS-80C, Atari, TI-99 and most other software for RTTY ASCII AMTOR CW. Eaty, potltlve tuning with...

Ege Has Everything For The

The word amateur is a little misleading. There's nothing amateur about the way hams maneuver signals successfully through the airwaves. It takes a unique blend of human skill and product excellence. That's why so many amateurs gravitate toward Larsen amateur antennas. Larsen antennas are designed by engineers who know amateur radio from the business end of the mike who make it their business to see that every Larsen antenna goes the distance, or it doesn't go out the door. As with our...

Tips On Chips

A good way to learn digital electronics is to learn about the various lypes of digital integrated circuits an the market. Every manufacturer of integrated circuits publishes spec sheets and data books describing ihe r product line. These publications, which are usually available at modest cost, contain a great deal of use ful information. One reference which I use often is the National Semiconductor Databook. This publication lists many types of digital logic circuits ranging from simple NAND...

Mount Carmel Rtty Repeater

The newest addition to the chain of repeaters in Israel. W4FQMS4X RPT, was activated In the spring. Located on ML Carmel overlooking the Mediterranean Sea from a heigni of 350 meters, this repeater 'S a unique phenomenon in our region presenting the amaieurs with almost endless possibilities for use. It was built shipped over, set up, and donated to the tstael Anv ateur Rad-o Club by Ed Webb W4FQM It is a near duplicate of a machine built and operated by Ed m Florida, and the hams here are just...

Map Exchange

1 like city maps if anybody out there is interested in maps, too, let me know Send me a map ot your cily and t will enchange w h ihe map of Caracas Please be sure It Is a detailed map with all streets (Cannot What does your caifslgn mean to you I know my can means a lot to me On ihe air, 1rs my name When t vtsit hamfests. my calisign badge lets people knew who I am There may be hundreds of thousands of John Edwardses on this sad old planet, but only one Kf2U Thank heaven Unlike my name. I've...

Antuner And Hamantuner

L Industries has introduced Antuner, an automatic antenna luner with no moving parts. Anluner covers a wide spectrum af frequencies from .1 MHz to 100 MHz. An Cushcratfs new amateur satellite antenna system Cushcratfs new amateur satellite antenna system Tne ACT-1 Power Antenna 15 a broad band winp antenna with a iow iotse pre ampiiher m us base Although much smaller than a fulhsize outdoor antenna 125 inches tall , it provides good coverage ot distant signals and is capable of outperforming...

Hews From Cyprus

Summenirne tn Cyprus usually means, for locaf radio amateurs, fewer voices on the air. Most amateurs over here enjoy Ihe sea or the mountains during their summer A assort and Pauto Roberto near the finish hne tn Pant Squaret Rio de Janeiro A assort and Pauto Roberto near the finish hne tn Pant Squaret Rio de Janeiro holidays and the HF rigs are set aside. However, the VHF rigs are used quite a lot from the holiday or portabfe locations. Most of the contacts are between local hams, but some DX...

Equipment

Edge connector, commoniy called the ROM port. This is. in fact, an extension ol Ihe CoCo's address and data bus, Several manufacturers take advantage o this fact t gt gt building short extension bitten, kind of mini mother boards, which allow several RQMpack i ,pe devices lo be pJugged in ai once, Noa with that sa d lei's look at NEWRTTY This program sends RTTY da ta Out and recei.es demodulated RTTY da la in hrough the cit-bange RS 232 pod The software drivrng the port has been changed so that...

Method Of Mounting Cross Booms Use Washers On Both Side Of Bolts Tq Prevent Damage To Wooden Mast And Booms

BA1 ANCEP FEED AND FH SlNG .INR HEfiE. SOLDER TO L UGS FOR GOOD ELECTRICA CONNECTION- boom about ten times at each hole. A dab of epoxy glue covers the wire and fishing line. Attach the phasing line between the two feedpoints. 1 use twinlead sixteen inches long. The main feediine is also 300-0hm twinlead and is connected to either element. The feediine is then taped to the wooden center support. See Fig. 4. Electrical tape is used to secure the phasing line also Standoff...

Amateur Radio In West Africa

Wn iii tuning across 15 meters looking for a clear frequency to call CO. t over heard the following complaint from a group of W2 DXers Have you noticed that ihere aren't any Africans on the air There are never any African stations around I broke in and agreed with their observation thai African hams were lew and tar between. And then I signed my Call. C5AAQ working an African station, many DXers continue to lament he diMiculiy of working many of the countries on the Alri can coniinent. A recenl...

Director

Australian parasol beam antenna, Construction is similar to one frame of a cubical quad but plane of loop is parallel to surface of the earth. Array is horizontally polarized. Fig. 7. Australian parasol beam antenna, Construction is similar to one frame of a cubical quad but plane of loop is parallel to surface of the earth. Array is horizontally polarized. One of the features of the parasol array that first caught my attention was its small, compact size. I immediately had visions of a...

Multiband Antennas

7131 OWEN5MOLJTH AVENUE, SUITE 463C CANOGA PARK, CALIF, 91303 TELEPHONE 81B 341-5460 New Technology (patent pending) converts any VHF or UHF l-M receiver into an advanced Doppler shift radio direction finder. Simply plug into receiver s antenna and external speaker jacks. Uses four omnidirectional antennas. Low noise, high sensitivity for weak signal detection. Gal or write for full details and prices. DOPPLER SYSTEMS, INC. 5540 E Charter Oak, gqS

Element Fill In The Blanks

Fill in the calls of these prominent hams of the past and present Iran's son novr the current Shah) 5 Tom Christian _ In Spanish ever published and distributed In 19 countries. If you would like to take a look, send me your address and I will lorward you a sample. Maybe you would like to include, with your request, news from your radio club for publication. It somebody Is publishing something similarT an exchange is desired. Polish, Chinese, and Swah'li bulletins are accepted.

Build Your Own Tower With Eramemaker Clamps

BvHd a sturdy. prolessionaMookmg tower for a TV, CB or ham-radio antenna out qt common 3M mch electrical conduit and plated-steel FramtfMaker Clamps The only tools needed are a hacksaw or tube cutler) to cut thn conduit and a cou-pie of wrenches. Conduit sections are simply placed into the openrngs ot the clamps, and the plated nuts and bolt , are tightened, locking ihe clamp jaws securely around the conduit To avoid the pmaMs of one-cJamch does-all designs, several kinds of Frame-Maker clamps...

Super Rtty Filter

Automatic tracking copies drifting signal. Ejcar 2206 sine generator gives phase continuous AFSK tones, Standard 2125 Hi mark and 2295 2975 Hz space. Microphone fine AFSK out. AFSK ground, PTT out and PIT ground. FSK keying output. Plus and minus CW keying. CW transmit LED. External CW key jack. Kantronics compatible socket Exclusive general purpose socket allows interfacing to nearly any personal computer with most appropriate software, Available TTL lines RTTY demod out, CW demod out CW-1D...

Hamtronics Outdoor Scanner Antenna

Harntromcs. (no., a manufacturer of low-no se receiving equipmenl for ama teur radio. has announced a new antenna for scanner and rncmitor buffs to serve a need for a scanner antenna which is half way between a bunt in whip on a scanner and a arge outdoor antenna requiring root mounting with some sod of mast ar rangement. Hamtronics has designed a compact Power Antenna' wnich may ty msta ed easily on th- side a house Outside a window, m an attic etc . A-ihout any special rnasl or brackets...

Antenna Design Software

Smit Software Sysicms nas released their iatesi ha rrn-ei a ted software package for the Apple II-r and He computers Antenna Design Software is a menu-driven pfogrdm composed of twenty-si* submod ules 10 help in the design of HF VHF UHF antennas and transmission lines. Capabilities include design of antenna Types such as dipcie. folded dtpo'e. vertical, long ire, 2- and 3-elemfn( Quad, parabolic dish and loop Ht is also prodded with calculating feedlme losses phasing lines, transmissfon-nne...

Response Form

Read each question and mark your response by circling the appropriate letter next to the number of the question. i abcdetgh i j 6) abode ii)ab 16) a to 21)abcde 2)abcdefghij 7)abcd 12) a b 17 a b 22) al) 3) a b 6) a b 13) a b 18 a b 23) a b 4) a b c d e f g n 9 ab 14) a b t9)ab 24 a b 5 a bed 10) a b 15 a b 20) a b 25 abc 4) What amateur-radio applications do you have for your computer b) Control of amateur-radio equipment c) Record Keeping (togs, contests. DXCC lisi, etc. d) Number crunching...

Engineering Consulting

CA 92621 (714) 671-2009 _ The Model 335A will deliver 35 watts of power using the latest state-of-the-art circuitry. The amplifier will operate SSB or FM and is compatible with most handhefd transceivers, including the TR2400, TR2500. IC-2ATt Yaesu, Santec, and Ten-Tec Only 300 mw input will deliver 5 watts out 3 watts in will deliver 35 watts out. Maximum input drive level is 5 watts. Our products are backed by prompt factory service and techmcal assistance, lo become...

Greensboro Nc

The 4th annual Greater Greensboro HannFest win be heid on November 24-25, 1984, From 9 00 am to 5 0 pm, at the National Guard Armory, 1100 Franklin BouEevard. Greensboro NC. For advance tickets, send an SASE to Fred Redmon N4GGD, 2305 Sherwood Street. Greensboro NC 27403. For dealers' space, tables, and flea marke information, contact Coy Hennis WD4NHL at (919 -294-2841. School Electronics 15th annual Swap N The Oak Park High Club will hofd its Shop on Thanksgiving Sunday. November 25, 1984....

Newsletter Of The Month

.'-1C- .T _ji.rvi-IC AMATHUR RADQ CUUS AM the news that fits, we print'1 seems an appropriate motto for REMARCS. chronicle of the Mid-Atlantic Amateur Radio Club. Editor Kay Craigie KC3LM realizes mat no one wants lo read endless minutes arid committee reports month after month. After all, those who are interested in that brand of tedium can near it all at the club meeting. Instead, Kay draws upon outside sources such as West (ink, Woridradio, and the WSVt Report to fill REMARCS with truly...

Software Piracy

There is a problem in the amateur-radio fraternity . .software piracy. Whether by ignorance or simple disregard for (he law, many amateurs are stealing copyrighted programs. Most do not consider their iheft a crime or a serious problem, but unless this practice is discontinued, amateur radio will suffer. With the influx of computers inlo the hobby, a degree of software piracy was in-evltable. Unfortunately, the problem has become a blemish on amateu* radio. Thousands of dollars have been spent...

Sharing Ideas

Pertboard and Solder t at I**, which appeared in the Jufy, 1984, issue of 73, has brought some welcome correspondence. The letters below add some Important ideas to those in the article More important they illustrate orte of the most important ideas in ham radio the willingness to share freely experience and ideas that might help other hams. I want to thank both gen tie men for writing and for adding to my own stock of construction ideas. No one knows everything, and perhaps it fs even true...

St Peters

The Si Peters Amateur Radio Club will operate a special event station irom 1700 UTC, Saturday, October 6, to 1700 UTC, October 7, at the Daniel Boone Home, Femme Osage Valley, St. Charles County, Missouri. The event is to commemorate the place where Daniel Boone frontiersman, iudge, trapper, surveyor, builder, and family man, spent the last twenty years of his life. The weekend celebration features a black powder marksman contest for local participants. One complete 2-way contact is needed to...

Center Of The Us

The Centra Kansas ARC of Salina KS will operate W0KQU irom the marker of the geographical center of the US in Lebanon KS. Operation will be from 1700Z October 6 till 1900Z October 7, 10 kHz up from the lower end of the General-class 10-8frmeter bands. Certificate via KBftBH. 2358 Aurora Ave., Sallna KS 67401. The Columbus Amateur Radio Association will be holding its second annual Columbus Day Special Event to provide a triple salute to Christopher Columbus, the City of Columbus, and amateur...

Island Dx Award

The IDX Award, sponsored by the Whid-bey island DX Club, Is one of the most sought after awards in the DX community This award is available to licensed ama teurs and shortwave listeners worldwide. The IDX Award is issued for SSBt CW, RTTY. SSTV, and mixed mode, as well as for mixed- and single-band accomplishments. Applicants must work fifty (50) IDX islands lor the basic award. Endorsements are given in increments of 50 islands, up to and Including the maximum number of islands possible. Only...

Haroaa Awards

These awards are of high quality and win make a very nice addition to any radio room. The awards are available to all licensed amateurs and amateur stations. Please do not send QSL cards, A list showing toft deiails of tfofc contacts (log information) should be certified by one other amateur or radio-club officer. Photocopies of your QSL cards or original log will also be permitted. At your request. special endorsements will be added such as CW, SSB. all YL, QflF, RTTY, SSTV, one bandr etc If...

For Fuhthevi Information Contact

John J Borkowski, Private Radio Bureau, Washington, D.Q 20554, (202) 632-49G4- Parts 1 and of the Commission's Rules (47 CFR Parts 1 and 97) are amended as follow l. Paragraph (ej of 1,925 is revised to read 1.925 Application for itpeclaJ temporary authorization, temporary permit or temporary operating authority (e) Unless the FCC otherwise prescribes, an applicant already licensed in the Amateur Radio Service, upon successfully completing the amateur radio operator exurnitfatioii(s required...

Ten Tec Model Antenna Tuner

Awhile bat k, I saw advertised in 73 ihe Ten-Tec Model 4229 Anlenna Tuner kit Phoio AAfter -some pialn and fancy dancing. I managed to snare Ihe checkbook a y from the XYL to order it. As I am a raThet new ham, she didn'i realize the rradihon-seilrng ihis order entailed mail sysl m, in aboul ihree weeks large box arrived trom Sevierville, Tennessee, Only Ihree weeks lo ge an order from the United Slates 10 Guantanamo Bay, Cuba, can be likened to same-day service. Fortunately I did not have duty...

The Dr Digital Poll

It's hard to judge what interests the typical Dr Digital reader solely from the mail I receive. Only certain people are motivat ed to write letters for most, the process takes too much time or effort. I am going to get around this problem by conducting a poll While John Edwards' FUN poll revealed some information about the computer habits of amateur-radio operators, it was not specific enough for my needs. So grab a pencil and answer the foftowing questions. Send your responses to the address...

Spuu State Relats

Model EC5-215 PRICE EACH 7,50 ( r ii sby Barton H del LrB74(K> PRICE EACH 7.50 I20vnc contact at 7 amps or 2Damps on a i0x 10Mk aluminum. Heatsink with silicon grease, 24UVtic contact 1imps or 40am ps on a 10* 10k .124 aluminum. Heatsiok with silicon grease. 240vac contact at 15aynps or AOamps on a 10x 10* .124 aluminum. Heatsink with silicon grease. NOTE *** Items m& y be substituted with other brnnds or equivalent riodel numbers, All parts may be new or surplus, and parts...

Motorola Mrf Rf Transistor

13db typ at 512rtiz output power ,5watts at 12.5vdc at 870ntiz. All pans may be new or surplus, and parts nnay > e substituted with comparable paris i we aie oui ol slock oi an item 1 For information call (602) 242*3037 Toll Free Number 800-528-0180 (For orders only)

Ceramic Filters

12.6KC Bandpass Filter 3dB bandwidth 1.6KHZ from 11.8 13.4KHz 455KHz+-2KHz bandwidth 4-7 at 3dB 455KIIz-f IKHz bandwidth 6dB min 12KHZ, 60dB inax 36KHz 455KHZ 455KHZ 455KHz + 5y5KHz at 3dB , +-SKBz at 6dB r 4-16KIIz at 50dB 455KHz 7KBz at 3dB , 4-10KHz at 6dB f +-20KHZ at 50dB 455KHZ +-5.5K3I2 at 3dB , +-3KHz at 6dB , -f-16KHz at 60dB 455KIJZ 4 2 KHz bandwidth +-15XHz at 6dB, +-30KHZ at 4 0dB 455KHz +-2KHz bandwidth 4-12,5KHz at 6dB , +-24KHZ at 40dB 455KHZ -I lKHz bandwidth 4-4-SKHz at 6dB , 4...

Williams Radio Sales

C COLFAX, N.C. 27235 (919) 993-5881 Noon to 10 P.M. EST Master code Or upgrade in a matter of days. Cod Quick is a unique breakthrough whtch simplifies learning Morse Code, instead of a confusing maze of dits and each letter wi l magicaJly begin to cal oul its own name Stop torturing yourself Your amazing kit containing 5 power packed cassettes, visual breakthrough cards and original manual is only 39.95 Send check or money order today to WHEELER APPLIED RESEARCH LAB,...

Cushcraft Satellite Antenna System

Cushcratt has Introduced a new complete amateur satellite antenna system featuring two high-gain, circularly-polar Ized yagi antennas, The 70-cm, 16-element uplink and 2- lt neter, 20-element downlink antennas are fixed to a common mounting Doom. The entire array is lightweight with reasonable dimensions for quick installation. For more information, contaci Cush craft Corporation PO Box 4680 Manches ter NH 03103 603 627 7677 telex 953050 Cushsig Man, Reader Service number 480, The IC-27H...

Roensch Microwave

RH Bo* 156B PR 316 963 2 50 BflOOKFlELO, MiSSOURI 6462B For HT owneis operating insidt a vehicle and wanting increased T R range, RF PRODUCTS has the low cost solution- Remove your BNC antenna from ihe HT and mount on the RF PRODUCTS BNC magnet mount, mstati the magnet mount on the root topano connect the BNC co-a* connector The magnet mount (pan no 199 445)has TO feet of small (5 32) co-an with BNC connector attached and is priced at 15 95 (including shipping by UPS to 48 states) TO ORDER -...

Entries And Awards

All entries must have a log and sun* mar> sheer and if more than 200 contacts are made, a dupe sheei should be i nr. _ jed Entnes may be disqualified if logs are in complete or too many errors are detected You ti js sign the summary sheet stating that you observed ail the rules. You may photocopy log and dupe sheets or you may ootain extras from the HARC ipiease senc SASE). Logs must be received by No ember 12th and should be addressed to ihe Hermiston Amateur Radio Ctutx PO Box 962....

Gib Electronics

Buffalo, NY 14206 716-824-7936, 9 to 4 otter a complete fine or (ransmnrer ana rcceivtt smps and synm & iiers Iqt amateur and commercial uw Bequest ouf lt * catalog AHo* S2 for ups shipping Mastercard ami visa welcome * F tran& Cetver 5 no fepeJlffS AMATEUR 10 COMMERCIAL * Auiomatic operation adjustable speed anj amcriitutie s aii EJe sas> i'ior to 5 voits K B setectabte reprogramm e rnessages each up to 2 mm fong i'.ire . es'efl and programmed witn your Vcd- ID-T -...

Economy Preamps

mm iiiataaaiiaa Ma SAVE A BUNDLE ON helical resonator VHF FM TRANSCEIVERS preamps Call or Write for FREE CATALOG (Send 1.00 or 4 IRC'c for overseas mailing) Order by phone or mail Add 3 S & H per order (Electronic answering service evenings & weekends) Use VISA, MASTERCARD, Check, or UPS COD. 65-D MOUL RD. HILTON NY 14468 Phone 716-392-9430 Hamtronics is a registered trademark For SSB, CW, ATV, FM, etc. Why pay big bucks for a multi mode rig for each band Can be linked with receive...

Ramsey Digital Multimeter

MeiFabia, accurate digital men-i . ijmenis at an amazingly t os( * .n-line color coded pusr buttons, speeds range selectsQii abs pia tic t I c si and * recessed Input jacks * r arload protection or. all ranges digit LCO display with aulo zero. aut6 phlanty kw BAT' nti cator he moss wersfilile f( r less lhe - 300 Features 3 selectsbSe gate linnes 9 digits gate indicator * dispiay hold 150 MHi typical sen-sihvny 10 mh inn baie fo- fefWW calibration S 4 A. d5 wjred includes T AC adaplei CT-90 kl...

Ham Radio Outlet

La Palma, 714) 761 3033, (213) 860-2040, 8etween Disneyland & Knolls Berry Farm. 999 Howard Ave < (415) 342 5757, 5 miles soulh on 101 from 5 F AirpoM AH * LIAHd ' VEt-l A T> i Ot - VM iltM XWHH * ANreWL iPEtlftUSTS - *pi L ETROfL * Hi Efl ai* & ui_T.c''it h ei A * CALLFIQOH 2811 Telegraph Ave,, (415) 451-5757, Hwy 24 Downtown Left Z71h oti-ramp XiLL1. - Uh Si JJJSHCHaM -IHtOSE EIW*.C ' HUSTLE * MH N-.A TBOhiCS ffl * LM< LftHSEK * U-SAfl * METJ * Mf J MtC LOG 5375 Kearny...

Tuning in London as easy as dialing a phone

Direct access keyboard tuning brings a new level of simplicity to shortwave radio. With the Uniden' Bearcat DX 1000,dialing m the BBC in London s as easy as dialing a telephone. And you can switch from the BBC to Peruvian Huayno music from Radio Andma instantly. Without bandswitching. Featuring the innovative microprocessor digital technofogy made famous by UnidenH Bearcat scanner radios, the DX 1000 covers 10 kHz to 30 MHz continuously, with PLL synthesized accuracy. But as easy as it is to...

Reflected Pulse

TDR u rh a pulse-train signal source. where L is the line length in feet V is the velocity factor (0-1), T is the round-trip time in microseconds, as measured on the oscilloscope, 983.5 is the speed of light in feet per microseconds (ft js and 2 represents the fact that T is a round-trip time. We can rearrange the basic equation to also find I or V, as needed Let s work an example of each. Let's say we have a long piece of 75-Ohm coaxial cable used as a data line between 1 lie computer...

Quantity Discounts Available

Order two scanners at the same time and deduct 1 , for three scanners deduct 2 , four scanners deduct 3 P five scanners deduct 4 and six or more scanners purchased at the same time earns you a 5 discount off our super low single unit price. y y1 > y r y nrryv7 y y1 > y r y nrryv7 The Uniden PC33 boasts a super-compact case and front-paneJ mike connector to fit comfortably in today's smaller cars. Controls PowerS Volume. Squelch Switches ANL. Other features of the PC33 incfude Graduated...

Communications Electronics

Bath Bandit naddr 4tf iSti rs feature ED TT he iectr nic DeVt Im er few mr rm TUit Aa' editvou fahe. alarm signals. 01B Phoenix So* 1002 Ann Arb r, Michigan 4fll06 U.S.A. Call TOLL-FREE flGO-521 4414 of ouUld* U.S.A. 31 B0B The Best Active Antenna COSTS L SS The new ARCOMM AP-i active tuned antenn* preselector is the most ter< Jiilet best performing unit jt jitabJe. Idfj 'of use where outride inlenru* re ool possible. n< JuciinE FHEt AC idjipli'f timet 40 KH ihiu 32 MHz iti lou* bandl <...

Twinlead To Shack

1 1 x 1 wood six feet long 2 1 x 1 wood 20 inches iong 2 Plexiglas for insulators 1-5 x 3 use the thickest type you can find. Screws, nuts, and washers to mount the insulators and booms Solder lugs and standoff insulators (if balanced line is used) U-bOlts to mount center support to mast

Telephone

.I in tri irom .H- r 5BUFCf Hi l lil lud I I 5 5 ' C f W t l r.nn . urM.- Ii Jiy L tvl'-H f l - Ml n i H'.i I-1 JfiV .t -y m IH h- L n i , yju < C C-n l- in dI .1 L- p Pr i . f3i- -1 h ' HqWT r ro-tn In- T I red Iii IL-' DI < > CGM m I When u i g RVI wnlr ll r iL UM 'ii50 E il -Viiiirt MCb GCfi. h-iniinf.n-, (ir.h Kaa - I POf I ICCJM ir I ir AT. na m r.V Tio-p pjiyttiml vim nur alii- - yfl ly wTl- C-.r 1 T. diflll pe liiI thiljPAP 1 wj-Ii H reiHp -0 -, ii'-i'ifi M Li * * . I Lintt franft...

Radio Amateurs Operating Themalf Marathon

For first lime in BrajH and we never heard about thus anywnere else beforei two radio amateurs jomed ihe lace of the Bridge and put it on the amateurradio atr. T e rtaceo* the 'idg 15 a ean> competition. a cross-country naif marathon. organized oy the CORJi- Rio de Janeiro Runner Association and sponsored by the Bradesco-Atlantic a organization a bann an msirance company helping amateur Sports. This 22,400-meter long race (a halt marathon as it s called herei crosses me longest concrete-buiU...

Great Britain

Jeff Maynard G4 JA 10 Chur h fields IVIndes WA Cheshire England I was pleased to note that the recent D-Day Anniversary celebrations Included a tribute to the role ot the amateur in providing operating skills and development expertise in the field ot radio during World War H. As you no doubt saw in the televl-Sfon coverage of the event the beaches were visited by The Queen and Prince Philip. The latter is the patron of the RSGB and was the recipient cf a message of greeting originated by a...

Practical Wireless

1 will now digress sornewhai from the g rerai type of news and information that makes up the Outk of this column. This is because I have iust come into possession of three books recently published in the UK of which I wo are directly related to amateur radio arid ihe third of which will be useful in mosi shacks. All three books are reprints of a number of arilcles originally published in Practical Wireless, ihe monthly UK publication dealing with all aspects ot radio tand not necessarily of...

Magicm Rf Speech Processors

Add 15 dB of averegr output with genuine if clipping m your transmitter's i stage. Custom engineered for Kenwood TS-t 0, TS 130 TS-430 TS 520. TS-530, TS-B2Q Drake T-4X. TR-7 Yaesu F1-I02. Extent speech quality simple Installation, af tamable prices' SASE fo* data anil cost Magicom PO Bo 6552A Bellevue WA 007 BN810- REPAIR iiignmern caimrat on Collins written estimates. 25, nonCollins, 50 KlMAN. ,207h-49S2215 BNB-17 need someone to adjuGi a Mite teletypewriter. will pay all repair costs and...