Amateur Center

For more than 40 years we have been serving the amateur community with QUALITY PRODUCTS and DEPENDABLE ' E-R-V-1-C-E1' and, we fully Intend to carry on ihis proud tradition wifrb even MORE new product lines plus the same fair treatment you've come io rely on. Our reconditioned equipment is of the fmesl quality with 30r 60 and even 90-day parts and labor warranlies on selected pieces. Andr remember . . 'AMERICA'S MOST RELIABLE AMATEUR RADIO DEALER'

Winner S Edge Software

Winner's Edge Software has announced a new module for their Contester II computer-aided contesting system. The CO WW module is designed for use during the CO Worldwide phone and CW contests. It keeps the operator up lo date on contest statistics such as running score and the number of QSOs and multipliers (both in the contest and on ihe current band), as well as automatically jogging contacts, duping, and even sending CW. The CQWW module ( 16.95) requires the Contester II Basic system ( 39.95)...

Ct K

A s 11 jn fjorlOF irtBfiCii l-M wrrv- j rnlkr Kit li 11 rn 11 j .1 mhlp Virjt 1 ip Ml > '. JiitH > .-ep hOiialrturlK quillily ov rnaoftfi qif ts r.Miii in in 1 11 F. K 1 r'ic' cue Itlika, on-orf swilqri mtenoit batliT.-Hin- ipef ' iriion f 1115 rs the fir t uri4t AvALPftWe ftM'> orr 1 i V'tt iw itFUuc i Jl -rO-f1- Affl m Aon ChCiEtsiar Complete- i WW -FJ-,1- -i-, hW 5000 Hz iru4 4bl* ir > .-- mpBf V _ - (C Us ' ior-f . an 1 ' Cjf atso t> e xr ,15 a tir -re TCfc* - irs tu 5. fie ' . H...

Metz

Come to Barry s for Fall Festival Savings. Jan KB2RV, Kitty WA2BAP, Mark K2CON See Yolt At Boxborough Convention, MA Oct. t th & 19th IC-R71A. 751A, 745. 28A H, 37A, A, R 7000k 1271 A. 271 A H, 3200A.471 AyH,735 FT-767GX , FT-980, FT-757GX. FRG-8800 FT- 726r FRG-9600, FT270 770RHh FT-27 ORH YAESU FT-727R FT-2 709R H FT-1903 1123 TS440S AT, R-1000, R-2000, TS-940S AT TM-2 1B. TR26 3600A TM2570A 50A 30A TR-751A Kenwood Serviee Repa r

Mfj Hour Lcd Clocks

These MFJ 24 tour clocks malce your DXingt contesting, logging ahd SKEDlng easier, more precise. Raid both UTC end local time it i Glance with the MFJ-108, 119,95, cuaT clock that displays 24 and 12 hour time simultaneously Or choose the MFJ-107, S9.9S single clock for 24 hour UTC time. Both are mounted in a brushed aruminum frame, feature huge easy-to-tea 5 0 Inch LCD numerals and a sloped face thai manes reading across-the-sftaLk easy ahd pleasant*

Info

Only 98. r- v,. w TA51 VHF FM EXCITER for 10M, 6M, 2Mr or 220 MHz. 2 Watts continuous, up to 3W intermittent. Kit only 68 TA451 UHF FM EXCITER 2W com., up to 3W intermittent. Kits only 68 Xtai oven avail VHF UHF LINEAR AMPLIFIERS. For either FM OF or SSB. Power levels from 10 to 45 Watts to go with exciters & xmtg converters. Several models. Kits from 78. Models to cover every practical ff & if range to listen to SSB, FM, ATV, etc. NF - tJ8oriess.

Mlocn

W3 lo toss, solid center conduct foil fc aid shield excellent ptoduct 51c it 8237 6267 3262 RG-58 du nnilspec i& em 8000 Ugo stranded copper ant. wire,, . I3 m 8448 8 conductor rotor cable 33c 11 9405 as above bul HD-216ga, M8ga 58< t fi 8403 Mic cabie 3 condctr & shield 100 teei 821-4 v nos Installed 54.00 9258 PG8X 20ftift All prices FOB Houston Texas, except as noted Prices subject to change without notice subject to p' or sa e Use gear aie price refunded il no* sattsfiea Call...

Qsl Routes

Here's Phil Weaver VS6CT relaxing a bit after a vacation to the states and a mini DXpedition to KH2. Here are a few tips that are Ehe result of my checking into the gripes of many so-called DXers who, after complaining bitterly about their failure to get QSL responses, were found to have improperly executed their cards or had failed to provide return postage. Your QSL card should have all of the QSO information and yourcallsign on the same side If they are not printed that way, write your call...

Homebrew Projects List

SASE to WB2EUF, PO Box 708, East Hampton NY 11937. BNB388 XEROX MEMORY WRITER parts, assemblies, boards, manuals. Free help with service problems, W6NTH, BOX 250. Benton AR 72015 (50l)-776-0920. BNB404 our 24th year. Buy, swap, sell ham-radio gear. Published twice a month. Ads quickly circulate no long wait for results SASE for sample copy. 12 for one year (24 issues) PO Box 2057, Glen Ellyn IL 60136-2057. BNB412 QSL CARDS -Look good with top quality printing. Choose standard designs or fully...

Out

For CW mode by reducing response below 700 Hz. In SSB mode, C2 is switched in parailel with C1 10 extend the response to below 500 H Fig, 2(a). In the lower formant BPF. C28 provides additional rolloff below 400 Hz, The second formarn BPF (U5 and U6) uses C15 and C29 similarly Figs-2(c) and 2(d). The lower forma nt section is used for the CW filter. Since the bandwidth of the fourth cascaded BPF output is 350 Hz with an 800-Hz offset and is 300 Hz for a 700-Hz offset, it seems unnecessary to...

Visa

Hjnd-held Transceivers Deluxe models Regular SALE IC 2A for 2m 279 00 249 IC-2AT with HP 299,00 259 IC-3AT 220 MHz, TIP 339.00 299 IC-4AT 440 MHii, TTP 339.00 299 IC-12AT 1W 12GHz FM HT batt cgr TTP 45900 399 A-2 5W PEP synth aircraft HT 569 00 Accessories for Deluxe models Regular BP-7 425mah 13 2V Nicad Pan use BC-35 74 25 BP-8 800ma S. V Nicad Pa - use BC-35 74.25 BC-35 Drop in des charger for all batteries 74.95 BC-16U Wall charger lor BP7 BPS 20 25 LC-U Vinyl case for DJ using BP 3 20.50...

Npl

Owtila -fg pfliroirn n< a t 1 rt'JI ifJ ntcnii H kJWWnl Owto Hhkull bar d BJG-a > HAIL aowlt AulcmlK bandititChhrlD - Vwr SWfl - Co Ml powor Compact > F LLT *S5EMBLl to yrHPr pecJUed I'OQLHint oach ijaitd Eh> v T jfnrr*IT V n Il avt pro I 11b Camplara IniLrucHarn q i pafiotrl tttQCk KOOglad S - -M.-IUM 3 NtJ'THftf UH'OI c 16 . 6D, 40M 2 - - - WW I q DANU SPACE SAVE H IPOL E - 1& ihr u tCJH ' Tl Jeng 1* flaflinrw tndv-iPp* IkiOPr 60 JO 20. I M ilhout lurrti

Eathersat

Welcome 1o WEATHERSAT, one of 73s newest columns, devoted entirely to the subject of weather satellite activities. Most of you are aware of those hightech eyes in the sky, if only through the medium of your evening news. What most people are not aware of is the extent of the contribution ofamateurs the condescending title initially tagged on experimenters by the professional satellite establishment in developing tow-cost options for the reception and display of weather satellite images When the...

Selltrade

Box 73 208 East Kemp Water1own,SD 57201 THE AMTOR TERMINAL UNIT Works with any ASCII terminal or personal computer with a terminal program. AJso works RTTY, CW, ASCII. ORDER YOURS TODAY Limited quantities. Call or Write Us Today For a Quote You'll Find Us to be Courteous, Knowledgeable Save 15.00 when ordering charger with accessories kit.

Kits Available

E shortwave converter described in this article is available as both a kit and an assembled unit. The version for sale looks a bit fancier than the one pictured on the cover (we wanted to get your attention). Send 49 for the kit or 69 for the assembled version (postpaid) to Conelec Corp., Box 538 Peterborough NH 03458, Attn Kit Sales Three add-ons witl be available for the shortwave converter not too Jong from now they have been designed and tested and work well. They do not require any...

Philippines

(We are half chagrined, half confusedt and half pleasantly mystified about the material we pubhshed in the March, 1986. issue from Senor Leo Almazon WA6LOS DU2 our Philippines correspondentft included interesting information about a February, 1985, Hamvention not exactly hot newsf but in this column that doesn t matter and weni on to mention the plan for the next SEANET convention in DU-land (and the tentative dates are November 22 through 24____ (It was too late to do anything about that when...

Helical Resonator Preamps

Send 1 for Complete Catalog (Send 2.00 or 4 IRCs for overseas mailing) Order by phone or ma it Add 3 S & H per order (Electronic answering service evenings & weekends) Use VISA, MASTERCARD, Check, or UPS COD. Phone 716-392-9430 Hamtroflics* is a rogistered trademark Models to cover every practical ff & if range to listen to SSB, FM, ATV, etc. NF - tJ8oriess.

Remoterprd

Maximum function control1 column keypad cdmtrol plus 2 four di g r t sequence decoders ctsd * use this board 70 control rny 1& DIGIT keypad renotelv uith dtmf+ simply hook 4 rous 4 columns fror your keypad you U I SH tq cqntaol to the RAP-1 + *unlersh thepouer of voua rig's microcomputer* scam, em ter freouenc i es turn your links on off control kenuood 25d0 7< 350 mope, add 2mtr remote to cs& 4 EHG I tIEER I HG CONSUL I 1 MG 583 CflMOLEUOOO ST. BRER CR 92& 2I TEL 14-67t-2009

O

FULL COVERAGE *Lt BlNDSi AUTOMATIC SELECTION -itftPflOVEN WmiXhmtpreat mud Tfipi . 19 Gj Copper*6l j Wlrtl GfiOUNO MOUNT SLOPEflS - No n*44*dr fourd to fBJ b* tiuuat vi iter 1 tutiL Conntd Tap la Tiaii. Bulldinpi. Polni.alc ( ANV ikqi rrorn Siraigniup ta 60 for ilsnt lrSLOPEP OK Antenna 0*ln or t nd If joki ntetf lol 2QO0 W U PEP Input, rwK. Pirminsflt or pDrt*b1ff Ut* Inttillt m 10 mlnutct SMALL - NEAT -ALMOST INVISABLE - Ho arts wDI Unow rau MV HI.Pbwci OA Anttnm. IdtmS Tor CONO'Ol APARTf...

All Oscilloscopes Include Probes

TEAMS satisfaction guarinited * examine for ID dav il pleased, return in original form lor rsltinri add 6 lor shipping and insurance to a mavimum qf sib DO overseas add 15 larturlace mail COD add 52.50 (GOD in USA onltfl * ordm under 515 00 add SI 50 * NY rttidenls add 7 nlti lax dav parts warranty on all kits * 1 year pans & tabor warranty on all wired unilj I - RAMSEY ELECTRONICS, INC. fe MT HK Y 2S7S Barrd Rd.

Bnr I

A See a change in your Challenger a Put some fun in your Flescher a Get your CP-1 in the chips o Really motivate your MFJ a Heat-up your HAL and hop-up your Heath with the * itmdure and VIC 2U -Irntliimurl of Commodore Kkt-lmnira. Copyright 1983 MICRO LOG CORPORATION When You Buy, Say 73 73 Amateur Radio October, 1986 HERE ARE A FEW OF ITS MANY FEATURES on screen tuning indicators full or split-screen auto-load memories* * output to commodore printers full speed operation, morse to 99 wpm,...

Ever Say Die

Ago I don't recall if I ever wrote about Ihis. It seemed that one of the graduates of a local Brooklyn street gang had come to him with a wild story. Several of his gang had joined the Air Force and had managed to get assigned to the same SAC group. They were waiting for the time when three were on the same flight together and then they planned to take over the plane and grab the nuclear bombs. The idea was to set one up in Manhattan with a remote trigger and then demand a one-billion-dollar...

Dealer

H7i Grtai kd. < kt> 119), Littleton MA M460+4H6 400 3040. Complete lines COM, Mim e. KE.M. Laistti, A stum. Q A W. OvcMOOOeEeeiron-il' products for the hfibbyist. Also CIJ lizi-J Lnj incs. radtqs- fwrvLUj yml fruin a 60(10 fi lore Ton rant) Electronics Siena , Fptttani CA 22-77Jtt. lUy Are 'i newcsi umiiieui mdin lorc. New A gscd aiiuLieur ratlin salts & service We feature KcnwixhJ. tCOM. Azdert. Yaesu. Ten-Tee. SumuL & mLtny mure Sharer Ha-riio, lm . i 775A S, Winchester RivtL,...

Argentina

Marcelo Mac F, Avila LU5EIC Radio Club Boulogne C. C. 39-(1609) Boulogne Sur Mer Buenos Aires Argentina I've much pleasure writing you about the new special cailsign that began appearing this year and will be used through this month October . The Secretaria de Estado de Comunicsciones (Communications State Secretary) has authorized Argentine amateur radio clubs to use the AZ1ARU cailsign to commemorate the IX Plenary Assembly of IAPU Region II in Buenos Aires this month. The Radio Club...

Electrical Engineer

As a member of the Product Integrity group vou will be supporting hardware design teams to ensure high quality standards throughout the hardware design cycle from definition stage to product delivery- You must be committed to excellence in design qualitv and have at least 2A years experience in analog. RF design with a BS m Electrical Engineering. Experience in one or more of the following is highly desirable. EMC regulation Antenna radio propagation theory BNR, a subsidiary of Northern...

1

The switched capacitor filter is derived from a simple active low-pass filter, formant, the 137.674-Hz signal is divided bv 2 for U3 and by 4 for Ul to yield 68.H37 and 34,418 Hz. respectively, and a BPF of 344 to 688 Hz. The lower formant RPFs, Ul and U3, require identical clock signals in CW mode, which are selected in US (Fig. 2(h)) as controlled by Q2 (Fig. 2(i)). The two most popular CW offsets are 700 Hz and 800 Hz, which can be selected by sw itch SW2. In the case of a 700-Hz...

Packet Radio

ASCI I USA X.25 HDLC CONVERTER USA AX.25 is the AMRAD approved digital format STANDARD used on amateur packet radio networks. AssembledrTested. No ICs,90day warranty Package of all ICs except 2-2716 EPROMs 80,00 System Tested 4.5 x 6 board complete with all ICs and programmed EPROMs personalized for each purchaser. Requires only single 8 10 voft V3 amp power. 1 year guarantee of hardware soft-ware AX,25 standard RS232 serial ASCII at any user baud rate.RS232 HDLC for 202 modem used for AFSK or...

P

This is the switching arrangement Fig, 2. The PIN diode could be called a current-controlled resistor at rf. The high-resistance you 11 find in most older transceivers. intrinsic or ' 7 region is w hat sets the PIN apart from a normal silicon diode. * It may be used from below 500 kHz up to several GHz, depending on the model. * Its insertion loss is very low. * It supplies a high degree of isolation, * Its switching speed is very high. The PIN diode is better described as a...

Watt Versa Tuner

IMFJ s smallest 200 watt Versa Tuner matches coax, random wires and balanced lines from 1.8 thru 30 MHz. Works with all solid state and tuoe rigs, Very popular for use between transceiver and final amplifier Efficient air-wound inductor gives more wafts out 4 1 tetun, 5x2x6 in Mfj'i Dry dummy loads are air cooled no messy oil. Just right for tests and fast tune up. Non-inductive 50 ohm resistor in aluminum housing with 50-239. Full load to 30 seconds, de-rating curve to 5 minutes. MFJ-260 (300...

Tss

Information & Service (504) 885-5355 OFFER GOOD ONLY JULY Ihm SEPTFMBfR 3 190* T*tttu o iwvinai ct kj, Prjcei ao not rtfuoe VI ong. UPS C00 fee SS 35 per C Pnc fufc ct to tfarge wtrc r noto or o& < tion Product no sc it* cauatior. Aufronttd 'ttL s ire subject < c a iv-s nr oc rig and Handling ft and credit win be isued for j on your ne< t purchase GE supports tfw manufacliif warranties Id qc a copy of a warranty pnor to purchase, call customer service at 7g3-m3-t063 and it will be...

Connection

CES Simply the Right Connection for 1-800-327-9956 (Sales) 1-800-237-0030 (Service Only) The CES phone patch is the RIGHT CONNECTION foryour mobile radio-telephone system. Communications Electronics Specialties, Inc. P,0. Sox 2930. Winter Park, Florida32790 Telephone (305) 645-0474

Unadilla

For 20 years, preferred by Amateur, Commercial and Military Operators First with built-in lightning arrester minimizes TVIf maximizes power W2AU Mi & 4 1 W2DU HF W2DU-VHF W2AU Mi & 4 1 W2DU HF W2DU-VHF For medium power (1000 watts RF mrn.) and broadband operation 3-40 MHz W2DU Non-Ferrfte Very High Power Baluns * 3000-9000 watts with 1antenna SWR * 1500-5000 watts with 2 1 antenna SWR W2DU-VHF (High Power and Extended Range) '2000-4000 watts with 1 1 antenna SWR * 1200-2400 watts with 2 1...

Bove And Beyond

PutmanKTZB 84 8urn ham Road Morris Plains NJ 07950 A few months ago, I touched on the importance of 6 meters during the early (June and July) VHF contests. Many a great effort has been made by the grace of a strong Es opening on 50 MHz It's been a few months since the running of the 1986 CQ WW VHF WPX Contest, but 6 meters came through in a big way to help our group (SCORE, operating KC2PX) ring up some interesting totals. Overall, 6-meter activity was fairly good locally. But when the...

Ac Cords

IhiJiufjTnv fiTANI> P i AC com Fon IdV ale Ne-.- ' m uz. i e I U 4M fdL m J2.50 Chasis Spchfi Sq i_U _ 5_ 11, nil NE i.'I At CwJtcJ M SupiriOl Qualily n.-jrrro, irtiyfd pur 135 w lt JBW XT arrl - ly ITpi, I (j . r y u yiL. trs c q it C .-' reliability idi -j-.n j cUv -n plati gi in.nl HIM MJDply 55 AlLb utiu-n d d 1ii i 'T< a, e3 S> if tw rbl> ci,1 ii- -j i gi x1 Hlp.t p lytlmi iiis H Ml- - '.Ci . -C UO S A> l tvaro Ffccp I 5 . irrrp dtujpe r. Ihe jj) F f9 IfiM GI - iiiUexarl flffioal...

Amateur Electronic Supply

Fond du Lac Avenue Milwaukee, Wl 53216 Phone (414) 442-42( WICKLIFFE, Ohio 44092 28940 Euclid Avenue Phone (216) 585-73M Ohio WATS 1-800-362-0290 ORLANDO. Fla. 32803 621 Commonwealth Ave. Phone (305) 894-3238 Fla. WATS 1-800-432-9424 CLEARWATER, Fla. 33575 LAS VEGAS, Nev. 89106 CHICAGO. Illinois 60630 'SET 1-800-321-3594 ffi 1-80 -327-1917 1898 Drew Street 1072 N, Rancho Onve Phone (813) 461-4267 Phone (702) 647 3114 No In State WATS No In-State WATS No Nationwide WATS SSS'di...

Uxe

SLOPES. i.Q PS. 1 EhTj'C.ALS ACCESSORIES rVSRE. COAX. INSULA 10tt > SWITCHES, 2 M 4WEWV4S, CONNECTORS SASE FOR FREE 32 PAGE CA TALOG JIM. W4 THU ( 04j 484-0140 80X6159 PORTSMOUTH, VA 23703 ACCESSORIES rVSRE. COAX. INSULA 10tt > SWITCHES, 2 M 4WEWV4S, CONNECTORS

Orp

Tm not one to break tradition, so we might as well start at the beginning. Just what is this ORP stuff anyway I'm sure you have all heard about it before, but may not know exactly what it's all about. Well,, operating ORP means running low power. So the first question is How much power is QRP anyway ' That's fike my three-year-old son asking, How high is up th The answer lo both questions de- pends on whom you talk to or what you read, The international Q signal shows ORP as decrease power. but...

Seq

Easy-to-operate. functional design. l hree digit thumbwheel frequency selection and top-mounted controls increase operating ease. TH-21BT B 600 kHz. simplex. TH-31BT B 1.6 MHz, reverse simplex TH-418T B 5 MHz, simplex. Rubber Ilex antenna, earphone, wall charge , 180 mAH NiCd battery pack, wrist strap. Quick change, locking battery case. The rechargeable battery case snaps securely into place Optional battery cases and adapters are available. Rugged, high impact molded case. The high impact...

Scroll

This command is used as desired to control which portion of the received chart is being displayed. (As mentioned, the received chan is about six times the size of the display ) Selecting this command will change the message on the thinMrom-the-bottom display line from press joystick button to select command to use stick to scroll, button to display, Now repeatedly bump the joystick in the direction of the chart that you w ish to view . A pair of numbers (hexadecimal, and of the form rowrcolumm...

Official Rules

J I Jh rrM+t ni 1-, lurm r i i e u La jrrtat . .hj i aiu . I 1 it tdltH it V4U tlh. but nun -Ja_K oijfy unleJ, lu 71 li hiitJ 1 Mir)itikit riiriil Jlil t> urni n( TV F.f.- Ji l Hjirth pfcijr, njy h VH OlIlM Inltin TT .UE hw ihM nil UifiT i hurt Otcmhwr 11 1W* Jht db ini hi'* t.r 1 . I n SiH All iirlnti fewcDnw rrfTTiTTr l,I 1 j(nwJru.r SdJjLH *.'hjiJU riwn- Fi -Hr tijln IvpTlMI hi IWiiw 11M jddn j.i ili tKt winnrr J Witmrr wlJl hi P J randnm JowJtiij f iri Mmi'ij riJI tlimri fftr.vrj, glnki...

Ooking West

Bill Pasternak WA6ITF 28197Robin Avenue Saugus CA 91350 If Milt Jensen N5IA had not believed that dreams could be made into reality, the Zia Connection would never have been born. What is (he Zia Connection, you ask It's many things. Technically speaking, it is simply a bunch of repeaters that have been interconnected to let hams in one town talk to hams in another and to those on the road in between Obvtously, ihere are some who look at the Zia Connection as a marvel of modern technology. It...

Ws

Chip bonanza iat these prices thev ane asteali r f 1 r i Hi + +--- r W J .1 I . - r II n F r I n m tmahl u4caop d-dc* en ahqqfiivlp tms wi& anl micho p COLOR graphics keybq*rdm4ttetomeasufl 4 lC(Hl.tekt i n.D tffl.00 taun t tapa -M& 4 1 3E EA O- FOF fc& OC se EA OH W PCF (25 iE I FOP I 5 30 9 FOF IT2 I r 'l p r I 5J5 A-,0 OrSPLAT t g 95 ______ f 9 apple ii > nd apple ii h computer maihf qawes l'ulty piipuh < *rti um sm fcippiy, c-m* and k ytk rd **p* fpN tvhUbtt CAM V Wflb

Cw Golden Hours

It happened in Rolandia, Parana State, when Ftores PY5BXW suffered a heart attack which damaged almost three-fourths ot his heart and left him unable to move except for slight finger wiggles and winking eyelids. Taken to the hospital, almost no hope given him by the medical team, unable to communicate in any way, Flores seemed condemned when his wife. Ci-da, remembered CW and asked her son if he thought Ftores would be able to understand a CW message. Her son called on a friend ot Flores,...

MFJ

You can read hour, minute, second, month and day ahd operate them In aft afternating time-date display mode You can atso synchronize them to WWV for split-second timing Both a e quartz controlled for excellent accuracy RTTY ASCII AMTOR CW MFj-im COMPUTER INTERFACE 179.95 Everything you need Ii included tor tending and receiving RTTY ASCII CW on a Commodore 64 or VJC-2 and your ham ri . You get MFJ's most advanced computer interface, software on ta& e and an cables. Just plug in ahd operate,...

Specjals

IBM CompallbJp CofTipJlirs r i ip-Top KoyiK-s-'d Po-n ' SutJpJy arKJ * , rher ooara MpmFUxwng 13M DO (pila 90 Kstviii. sfl(f-ccn ain d CEronic potorDlw, *nd tfMidhorn S5S.95 nath Of for si DO 00 i> M 15 00 lor thippingj SH1PPII4G INFOR H ATMJtt PL ASE If CHJOt ION Of Oft EH FOR SHIP AND HA DLl G CHARGES WiFk-MLIW MA TMUM t'0 G*, H ADfAN OflMRS. A00 J7 50 rN JS FUNDS WICHH AN RESIDENTS ADD 4 & ALES TAX FOP FREE. FLYER, SEND 22t ETAM P OFl S AS E. P+0, BOX 11 1 DEPT.N i9 12671 DIX-TOLEDOHWY...

Commodore Serial Cable

EH fiih ' i- t*-. -CT iM-r.-1 i lu LH.e,' p -ii .- Mol-t-JI- CirJr .irr- surfjIuM and Iin I c. i hjrnr Ifl' ruir- and dhrr luir UpfWfllB LdL1 i oiripl lv rM AAM Or n X,bTH. l ho fl in ink I ii iftit I laSilr viprt.rn i N.-M Bph rs lhal i ivm ha n (h Si> C* 1e(l Cti ri rflHKRfaUl u-.h ir i tiund L.ib uml A. l . S J.Sfl . na r.,-. r. ( r .11. h oriel on hi ttOQ L 111 Pftfit flOfp 'S -'i J IntrLiJLrt S i ij f TiDr-e dammied 4nd B't uH feJ lor PBrti iinlM at * roducorl

Band Kit Wired

(Atso available for commercial bands) SENSITIVITY SECOND TO NONE 0.15 uV(VHF)p 0.2 uV(UHF) TYP, SELECTIVITY THAT CANT BE BEAT BOTH S POLE XTAL FILTER & CERAMIC FILTER FOR > 100dBAT 12KHZ HELICAL RESONATOR FRONT ENDS TO FIGHT DESENSE& INTERMOO. OTHER GREAT RECEIVER FEATURES FLUTTER-PROOF SQUELCH, AFC TO COMPENSATE FOR OFF-FREQ TRANSMITTERS, SEPARATE LOCAL SPEAKER AMPLIFIER & CONTROL CLEAN, EASY TU NE TRANSMITTER UP TO 20 WATTS OUT (UP TO 5QW WITH OPTION AL PA). NOW FCC TYPE ACCEPTED...

Clear

+ AT-440 internal auto, antenna tuner < 80 nv 10 m) AT-250 external auto, tuner 150 m- '0 ml * AT-130 compact mobile antenna tuner 1(50 m-10m)* IF-232C iC-lO level translator and modem IC kit PS-50 heavy duty power supply PS-430 PS-30 DC power supply 1 SP-43G external speaker MB 430 mobile mounting bracket YK-88C 88CN 500 Hz 270 Hz CW filters YK-88S SN 2.4 kHz 1 8 kW2 SSB filters MC-6OA a0 i5 rtesk microphones MC-55 (8P) mobile microphone HS-5 6 7 headphones SP-40 50B mooiFe speakers MA-5...

Build The

A complete set of parts, incfuding everything required to build the kit, is available from .J - UMi J f U. . , Valley Electronics. The kit version is slightly different from the unit presented in this article. The kit includes the optional capacitor and resistor for additional gain, a headphone jack, and a filter in filter out switch The circuit board is double-sided, and the entire unit is housed in an attractive cabinet with wood-grain end panels Order Number Description Price The price...

Discount Fob Cash

State-of-the-art CMOS circuitry Self completing dots and da& hes I AM QIC keying with any squeeze paddle 5-50 wpm Speed, weight, tone, volume tune controls & sldetone and speaker Semi-automatic bug operation & straight keymg rear panel switch Low current drain CMOS battery operation portable Detuxe quarter inch jacks for keying and output Keys grid block and solid state rigs 9 Wired and tested fully guaranteed less battery

The American Radio Relay League

Has filed a petition with the FCC seeking early access to the 18-MHz amateur band defined in the last World Administrative Radio Council, The ARRL feels that there is plenty of room for U.S. hams on the band, and pointed out that the government has shifted its stations off of 18 MHz, and lhat the few nongovernmental users have long since vacated. Fitly-seven countries currently permit amateur activity on the band, THE WINNER of the first Ham Ambassador Award sponsored by Advanced Electronic...

Model Cs

-or exemplary simplex performance, the CS9500 control station interconnect incorporates a futl V second of landlirte to mobile electronic voice delay. Voice delay assures compatibility with the slowest CTCSS or trunked repeater systems. Attractively styled to complement any decor. Three simple connections to base radio Simplex operation (VOX, of course) Digital fast VOX Selectable tone or pulse dialing * Automatic busy signal disconnect Control interrupt timer (maintains positive control in...

Ever Say

Thing for win be high-speed automatic communications systems using emergency-powered repeaters which will take typed messages and relay them where directed with no human help. We have the technology to set up such a system right now What we donT have is the manpower to put it together and make it work. We don't have half the hams we need to set up the system we need According to the best count we have a bit over 400,000 licensed amateurs in the U.S. Of those it's estimated that 50 at most could...

Videoterminal

NC CO 1.1- 11 ID ' ' I JL- J (f .i i .' ntl I > hi j -inn n-jhifn mjTni-flr an l r i r. ''irk E i'.ri'-liii'-.T. 'v (Jhss tevictci il i- i-jt '- intitp tor i-,f touch KeytrpnJc 51 51 s vV M boa--il S SH I Fipppn Dl nn . II uipj CfUbr Gi jgfncK And Mbnb Graphics Card ' JG Z A.UD -- --. C i-i- I > lt i .i Mc hif f)i I -IJ F tK. P SB H. t.OC A V . Sil- L Dr il rM-i- r Oi.'l 1 H I IHV .0i aiiLi P-OV ffhi R,l i P l.y PflOM . ' rrtinrT+i > fl .O'iWJPJ Kt vboaifl Ciltn& n.i- C tlfl 'nr...

N

Well, instead of being on the air, lhm sitting here talking to you. It's not entirely your fault, though, since there are several other things I'm behind on. Besides, I still haven't cleaned the dirt out of the key that J O the dog is playing with on page 84 of the August issue. and that's the only key t own. For the record, I O remains uncertain about the future of CW, and dug the key up again. Speaking of the big 73 packet issue, as I write this, I haven't seen it yet. I hope you liked it,...

Rf Connectors

I Alt'- -2B9 iri T -jr BNC mnle lo50-. ' j PL 9 tiuafi i.VL KtiTMlHi1 VG21& U N Mdb. UGlVJlJ N Rl hl liliflrt UGB Svii adBLpls a fit fl flte.'M Meli U D C rM iai -W f tt le U M L- L-H -f-Triifl ir 'i Mali 5 i Conn* lr-r .il- v *1.75 EKTT S'ON V . Power GabU I MjI dp an* flnct. Firtia e on cnh s V ttiT roup iMfri.r am-if H E OH HALF HEIGHT5 Lill-H-i Jftiili I-H'-LH. I fh JI-S O-I IO1 nfl Nhrt X ier rrv KfnwjK- t H ' T Id SNC Spaclal X ier rrv KfnwjK- t H ' T Id SNC...

St Charles L

The Fox River Radio League will sponsor an ARRL Central Division Convention as part of its Hamtastic Weekend on October 18-19, frorrn 10 a m to 4 p m on Saturday and from 9 a.m. 10 2 p.m. on Sunday, at the new Nons Sports Center, just off Rte 64 in St. Charles, Illinois, 35 miles west of Chicago. Tickets good for both days are 3 In advance or 4 at the door- Exams witl be given. Tatk-in on 144.870 145.470 and 144.610 145,210, For advance tickets or for in formation on tables or exams, contact...

Qsl

I teach seventh grade world history and English as a second language (ESL) at Horace Mann School in Beverly Hills Last year I applied for a grant, and the State of California came through with some bucks for shortwave equipment for my classroom. Your tax dollars at work. I bought an ICOM IC-R71 A, an IC-R7000, and all the accessories I put up a 42-foot trapped dipote for HF and a super-wrde-band discone for VHF UMF, have a lot of kids just listening right now. but this fall I hope 10 get a...

Vanguard Labs

Hoi lis MY 11423 Phone 71S. 6 -272Q Mon -Thum * Ntrvi* - rub you. again w.m th evaipr system Antenna and relator tnouni on haZEP complete tow& r m e't-cie upnghfl po rijon * Safety gc* tystem -fAZEF tJpers w+iile raitmg-i T.na & non a' posit or can fftJt Wei grit irartsttfred dtrscliy to lower Winch caG & usad otily for rafSFnc 4 3 (o rtslfi- an jm * Wil iuppon moat artenra arrays * Saf y - spwC QQnv*r -.Qrce - in penjj.fi * Complete includes IOC fl catjte harOrt...

And Airrom Cartridge

For both the COMMODORE 64 and VIC 20 Works with all these tine terminal units to bring you the ultimate in RTTY CW AMT0R performance. New AMTOR + program with variable PTT delay for slower rigs and high rate bit sync to compensate for computer ciock crystal variations, it's the best 39.95 you'll ever spend to improve your station. Don't have a disk drive, then use the ROM cartridge at S59.95. On performance and features vs. cost, nothing even comes close1 No complicated menus lo bog you down No...

Tmc

MAKE CIRCUIT BOARDS THE NEW, EASY WAY With an RC-850 controller, your repeater becomes fully remotely programmable -command codes, timers, autodial numbers, ID and tail messages ., . virtually every parameter can be easiiy changed. Touch-Tone programming from your radio or the phone with synthesized voice confirmation. The patch supports local and radio-linked remote phone lines, so you can extend your patch coverage to match your RF coverage. Now you can have a full featured patch even if you...

Zu

in(-'j'r rcnvwe U fB > mflWifiiri Fffii ttlir. nu' k4iptirj.ini L'.-l rnt+.f iu ir-,- l- -, Ne* cnchiflPTS a cu-nriilitlKi-- 45-9* Llli il CK Mt * i tfDOdli1 IMljn- (IVJh K Iiy t n. nal c m its 'jwn n-. n .ii. lily SEW kfeyptdi 'i.i.tc groat W Als h S h -id - itH F-iriflt trtma hHyS f'jfi I tinny S-93

Advertisers

4 Access Software 53 I Advanced Computer Controls. Inc 7& 143 Advanced Computer Onntrols, Inc 77 1Advanced Computer ContfoJs. Inc 79 105 Aero Electronics M Amateur Electronic Supply 45 202 Am 141 Antennas Elc -. 63 116 ArnaJd Company 22 53 Barker & Williamson 63 41 Barry Electronics Corp 37 Sell Northern Research -.41 9 6 Hi Ash by S Son 75 102 Brincomm Technology 65 92 Burghafdt Amateur Radio CSC I nta 68 CES, 43 CeCo 46 Charge-Rite 53 134 Colorado Com m. Center 31 149 Com Wesl Radio...

Mode

The mode command will step through the three possible modes of operation, with the present mode shown next to the word mode. Mode one indicates that the chan will be received and the proccss will be complete when the right-most line is displayed, Mode cont allows the continuous display of charts, with one overlapping the last. Mode wait halts the display of any more received Lines but docs maintain synchronization, This feature may be useful to eliminate unwanted sections of a known chart.

Dse Hf

r.T'H'-'-S .ft,' f.-i 11 If- tri-. .ril.MPi,1 jr. iiJi'h ip.mn. mi i liuiM i h i Hl I g.-.i- Jflipilr Ihe 't 1 ivf i-i-rc Uli EpmuJp j It'k Ijft 11 uC1 Hl K .1 1 ri i' *' IJ - < p m -nt a tir*- jr iDtl fin* - m h- m 'jrt j - I h - M Vi I'm I 3e G'if.fr an dr n i I Hi* -wmi 'I Fiul 1 prl i i mudiPitir,iiri i,ny If 500 iH j io iHj . rill ir hi'iir1ur iplMif i H-t-l Lijf fgn-ir t lobuMwl i d * '1 hir A'f AJH flMt.ni-M, tv* in ITHC -h i. i- a* t w gua-i rtff

Commander Xt

* n'.nijnj - i- - bu rJ ir K i n 51 ni If.u i .i L -n < H4 > , -jn rnn frt- I- aiT- u L n i * 1 Will H d Ju,. -r- y l fl- f up ' - r. n,-. Hf.'-uw Gaii i fip i i -.vn- Cdae. F' UIJf C 'n -.-. - 1 CWVj + Csi i' M nprh d T. i-aL-riiC Ai ' SV ilVt -.' . i.iDibiU M i .jrgerl J -.l bu I il lufj 'h i- . nncLl JLH - Ki.Lrl .igmpuhng * -.i -'i ijri -, di em& l iJ JI'L I-MINI * A scrhfy nilr chon Jj- d- 3flty

Repeaters

SUPERIOR RECEIVER AND TRANSMITTER SPECIFICALLY DESIGNED FOR REPEATER SERVtCE. ADJUSTABLE TRANSMITTER POWER, FROM 1 TO 25 WATTS MINIMUM OUTPUT WITH EXTREMELY COOL OPERATION, AUTOMATIC BATTERY BACK UP SYSTEM CAPABILITY WITH BATTERY CHARGING AND REVERSE POLARITY PROTECTION. NOW WITH A FULL COMPLIMENT OF INDICATORS AND STATUS LIGHTS. 100 DUTY CYCLE ADVANCED REPEATER SQUELCH NO CHOPPING, POPPING, OR ANNOYING REPEATER KEY UPS DURING LIGHTNING STORMS. DIE CAST ALUMINUM R.F. ENCLOSURES SMALL SIZE 5V4 X...

Remote Active Antenna

The authoritative World Radio TV Handbook rates the MFJ-1024 as 4 a first-rate ea y-to-oper-ate active ahtenna Quiet with excellent dynamic range and good gain .k Very low noise fac* tor Broad frequency coverage,,, the MFJ-1024 Is an excellent choice in an active antenna. 54 inch remote active antenna mounts outdoor afo from electricat noise for maximum signal ana minimum noise pickup. Often outperforms long* wlr hundreds of feet long. Mount anywhere-atop s, buildings, balconies, apartments,...

Fm If

You can set the gain from 20 to 200 by simply swapping a few parts, This versatile i-f amplifier is so eas to build and use it will amaze you. The heart of this project is the Signeties FM radio integrated circuit. Feu external components are required to construct this very good quality, low-cost (S3 for the chip, in single quantities) FM radio or, in m> application, an i-f strip. This is the first one-chip radio that Tve made and the performance has...

Porrectioms

In the QRP column in the July, 1986, issue (p. 83) The table on the left shows Lengths of quarter-wavelength ground radial wires the table on the right shows Resonant lengths of wire.,T An error crept into Tom Miller's universal frequency display, ' What You See Is Where You1 re At Part 11, in the May, 1986, issue. Please add en extra divide-by-ten stage as shown in Fig 1. P O, Box 3435 Hollywood, California 90076 213 852-1515 a Emphasis is on Qu slit y Rei abtfty

Texas Heritage

A mobile special-event station (using callsigns N51WA. N50UK. and KA5JMT) will be operating on October 11-18 in conjunction with (he Texas Heritage Excursion RaUye (T.H.E, Rallye), which ts a Texas Sesquicentenni-al activity sponsored by the Pro-Texas Foundation and the Sports Car Club or America Stations witl be operated on the Novice segments of the 40- and 80-rneier bands and on ihe General segments of the 20-, 40-, and 80-meter bands. For a commemorative QSL, send a QSL and an SASE to Hal...

Lake Texoma Ok

The Texoma Hamarama Assooation will hoions Hamarama 86 on October 24-26 at Lake Texoma Lodge on Cal-fish Bay, in Lake Texoma. Oklahoma, near Kingston. Exams will be giver For additional information, contact Texoma Hamarama Association, PO Box 610892, DFW Airport TX 7526 i. The Tri-City ARC will hold its fourth annual auction on October 25, beginning at 10 a m at the St, James Parish Hall, Poquetanuck. Connecticut, 1-1 2 miles east of Rte, 12 on Rte. 2A (south ol Norwich) Free admission Talk -in...

Switched Capacitor Filter

If an 800-Hz offset is chosen, the dividers are j i and 4 to produce a clock frequency of 81,353 Hz. The coupling caps for U I cause the total response to peak at 732 and 846 Hz+ but the response at 700 and 800 Hz is less than 0.2 dB down from maximum. The clock signal for the upper formant gets changed during CW operation at 800 Hz since divider U9 (Fig, 2(g)) is sel to 11 rather than to 13, he audio input to the upper formant BPF is ac grounded at U4 pin 14 (Fig,...

Qsl Of The Month

To enter your QSLt mail ii in an envelope to 73. WGE Center, 70 Rte. 202 N., Peterborough NH 03458. Attn GSL of the Month Winners receive a one-year subscription for extension) to 73. Entries not in envelopes cannot be accepted Have you been trawling the bounding main for anew product We have just netted it the TP-38 microprocessor controlled community repeater panel which provides the complete interface between the m repeater receiver and transmitter Scuttle m individual tone cards, all 38 EI...

Eme Electronic

1296-1298MJH2, I44 f, 1 wr AASFET . . 902-904MHZ, T44tf, 1-0 , GAASFET . 33 3 flMH . 144 I.0.5w. GAASFET . 14414 MHz> 0.4dbnf. ssdbgain Q.3dbi> L 20dbgain 1550-13D0MHi. 0-Sctb nf, 23db gain . . . 2300-2340MHz, O.fldb nT, 16db gain l44-14flMHz D.5db nf, 25db gain 43CM40MHI, .7db nf, 25db 3in 1296MHi, 10V solid Stale PA Terminating at rrwlerf20mw-20W> . 10 GHZTfan& verter Htgft po*er relay. t44 2kw, 432 Ikw . . . WJ10 Wale r coolers for 2C39, 7289,

Cw

F . 2 ft), Mode and offset selection. - 1 (6 28 x f x R x C)T so substituting Req for R we have V2 VI -1 (6.28 x f x C x T Ck). We can see that R has been replaced by T C, and. more importantly, lhai the ratio of C x T Q is the gain-setting relationship which 11us replaced C x R. The absolute values of C and C* are not as important as their ratio, which can be set to great precision in the SCF chip. The clock can also be generated with high precision, so the main variable in the circuit s gain...

Nbs Th

Society NBS BRASS) will operate special-event station K3AA from 21000200 UTC on October 17 and from 1300-0100 UTC on October 18. from the grounds of the National Bureau of Standards, in celebration of the 85th anniversary of the founding o the Bureau. Frequencies phone 3.900, 7.235r 14.235, ana 21.360 CW-3.535, 3.710. 7.035 7,110 14.035, 2T 035, and 21.110 packet 20m, For a commemorative certificate, seno a large SASE to NSS BRASS, National Bureau of Standards, Gaiihersburg MD 20899.

Columbus Events

The Columbus ARA will hold the Fourth Annual Columbus Day Special Evenl on October 11-12 as a triple salule to explorer Christopher CoJum-bus, the city of Columbus, Ohio, and amateur radio worldwide. CARA club station W8TO will operale as a citywide special-event station. For a complete list of rules, write to Amaleur Radio Station WSTO, Alln, Special Evenl Coordinator, 200 East Broad Sueet, Columbus OH 43215. The Texoma ARC wiff operate special-event stalion KSGQD from Den-ison, Texas,...

Quit

This command ma be selected when it is desired to leave the Visifax program and return control to Basic. Please recall the earlier note about the incompatibility oi the simultaneous keyboard and joystick port usage. When you use tins command* the last chart received is maintained in a buffer in memory, (it is lost it you turn off the power ) The Utility program can print it or move iuodisk. Running any progwm other than Utility * destroy the chart, Utility i* required to provide several...

Glass Houses

Though once considered a man's hobby, amateur radio 35 now seeing a growing infiu* of YLs. Some narrow-minded OMs are voicing their concerns about the growing number of licensed YLs and the long-term effect on 'their repeaters Many have expressed fears that the bands will soon be overrun by inexperienced YLs who will turn two meters into a glorified CB band filled with meaningless gossip, To be adequately prepared for entering the world of repeater operations, I, a newiy licensed Technician,...

Rapid Systems X

A new digital oscilloscope peripheral for IBM-compatibie computers has been announced by Rapid Systems. The 4X4. which retails for 1,995. features four channels of simultaneous sanv pling with a 32K data buffer on each channel, The A Ds have programmable gains from 10 mV The 4X4 digital oscilloscope from Rapid Systems. to 20 V per division, sampling rates from 0.1 Hz to 500 kHz, user-definable pre- and posttrigger buffers, and both analog and digitai triggers. The menu-driven software includes...

Norfolk Island

Kirsti Jen kins-Smith VK9NL PO Box 90 Norfolk Islandt 2899 Australia When the Pitcairners stepped ashore on Norfolk island in 1856, they looked around them in amazement. These were the second and third generation de* scendants of the famous Bounty mutineers who had sought refuge on Pitcairn Island after casting Captain Qtigh adrift in an open boat. As generation fotlowed generation. Pitcairn Island had become too small for the 193 descendants. A larger istand was needed, preferably one where...

Pr Counter Preamp

ProfWMWtai qt fa f ai a tioooyjV pr> c F**-1 1.7- Zi r- t -.- t *_ j'- ' 3 Oigif ir m Ddlf UtO It . f. z - T PW- ft oe tor mate* va* vgrmis from te-1 DDO MH n 5 j > fi 8NC -r- - - j * i-j .L e .Tr-2 ' * * > r< ' PrOi Ji* r J' i1 i ir 1 PC oovd fOOo' td to p ovxte a MKxee XIN I i'MH Or r lili < (JT rryfi' i F-adkiCP JO''. ' - e- .-.ni attentior gattmg lOuMd i - -5 range ' . pi. il< i 1 , 1 -IJ 5 5 age pi imp * . -i, ' .1 cl.iN y supcr iti-sni-' liOmvflyt * un C - rt I1- '.' . - I . ....

Mfj Antenna Bridge Mfjwb Roller Inductor Tuner

Now you can quickly optimize your antenna for peak performance with this portable, totally self-contained antenna bridge that you can take to your ahtenna site no other equipment is needed. You can determine If your antenna is too long or too short, measure Its resonant frequency and antenna resistance to 500 ohms. It's the easiest and most convenient v.ay to determine antenna performance available today to anyone There's nothing else like it and only MFJ has it. Built-in resistance bridge,...

Iimii

Only ICOM offers the most complete line of ham gear for L2GHz the 1C-1271A full-featured base station transceiver, the new IC-I2AT handheld, the 10120 mobile and the 1C-RP1210 repeater. So, get away from the crowd and be a pioneer on L2GHz< The IC I27IA 1240-1300MHz base station transceiver features 10 watts of RF output power, 32 memories. scanning and multi-mode operation including ATV (amateur TV). A variety of options are available for the IC-1271A including the...

Alr

Barter N Buy advertising must pertain to ham radio products or services per word Count only the words in the ext. Your address is free. 73 cannot verify advertising claims and cannot be held responsible for claims made by the advertiser. Liability will be limited to making any necessary corrections in the next available issue. Please type (double-spaced) or print clearly. Include payment with your ad. No discounts or commissions are available. Copy must be received in Peterborough by the fifth...

Telex Ramsey Ci

A heavy duty and accural r r service as as production use Features tnc iKte ande frequency bandwidth optimal sensitivity * exiremefy bright display delayed triggering sweep hold ott ALT logger prqle sweep + TV sync * 5X ntagrnT.caiton * XV or XVZ oi-eraiion HF _F norSC reduclion T1 A r RAMSEY 20MHz I & 9 (Jnsurpassea quality at an J j-, .jnbeatafele price ihe A' y L Ramsey oscilloscope com a j__pi E pares ro olhers costing . j -fc hundreds more FeaJijres ________' w include a component lest...

Ramsey Compact

Compaci sizetl rel aOilily accu'Jcy LCD o< g ta mult eas , +1- , ui> r pot rei you car a*e t r , tiero i feat ire iul overload protect jn + I ij 51 r lCC reaoout recess*.1 input jacks * safety probes diode chech tuncNon * 2iX< i ours , fr Ci -ic-. siors diodes LtDs (i this ona Ojar rne r Othc-r teiturei nciude decibel acaie r. .rt , ypf g SySiem * i fmr-rr retj < r-.- a- tf swhtch * zc - - . ng ranges Ba'e-y proi- - inimpact plastic case - iluTti iflcapjf 1 courteii c iT ctitm OTipACt *...

To Wijc

D-iMnAAx Cm* ftH HO Aliii i i ' 9 rkJFihS DN I in. LCWG FE RfllTt -JH MIU H I A-WIRE 5HE NO 8. QAFVE COfREff Av( UG1 St* I Nil WttttN TURN*. WI E CENtfH TO CENTERS it* in 4NT N A TAP M 2 TURNS ' HgM GRQIIND CKO '.ML Tt T The rf generated by Q1 through its feedback circuit and present on L10 is coupled to LI 1, a single loop, and sent via the oscillator cable (which may be twisted-pair or shielded cable not critical) to J2I of the mixer module, The position of the emitter tap on LiO controls the...

Using The Aoio Predictions

Apogee predictions for the month of October are provided for three sections of the United States Washington, D C. Denver, Colorado and Los Angeles, California. Times are in UTC and apogee in this case is mean anomaly 128 rounded to the nearest whole hour. Use the chart as a guide in aiming your antenna, then fine-tune the azimuth and elevation values to peak the satellite's beacon signal If you require more accurate orbital predictions, contact AMSAT at PO Box 27, Washington DC 20044.

Tguchtone Decoder

ssf 20 1 dtmf recelutr kl rece i ue rll 16 dtrif digits output bcd or hex formrt *LCL pouer orr i nt2 mr l2u> kit includes 3 58 mhz xtrl socket, resistor dlcaprcj-tors. dat r sheet ersv to build T utreo rnd tested,5 to 12u *user programable 50,oog coilb i nations rnv 16 dtmf t0ttes*send cdoe once to turn 0n,rgain to turn off* momemtrrv and lrtching open collector trans i stop outputs*custom ic assures high reliabilitv led decode indicator * instructions schemrtic jse your computer to decode...

Hew

TONE dr PULSE.CRLL U R i t I HG P ANSWER second INCOMING CRLL.LflST NUMBER rlENORV UOICEPRGE oh INCOMING CRLL * RUTQ IRL * RED'RL TONE dr PULSE.CRLL U R i t I HG P ANSWER second INCOMING CRLL.LflST NUMBER rlENORV UOICEPRGE oh INCOMING CRLL * RUTQ IRL * RED'RL g memorv fr quenc3es.scrn up douh frst sl0i4 + enter or recall anv treo from menqrv + chrnge mooes us ls fm rn control 9 relrvs cc opt o 1> qn off ui h uo i ce c nf i rmrtt on +heulq0 hz single step tune mode (1 uhf or uhf trrnsc iu r...

Equipment In Stock

Hy-Gam Towers i Antennas and floters wilf be shipped direct to you FREE of Shipping cost. New TEN-TEC 2591HT, Corsair III, Argosy IJ, Century 22, 2510 RX-325 Hy-Gam Towers i Antennas and floters wilf be shipped direct to you FREE of Shipping cost. New TEN-TEC 2591HT, Corsair III, Argosy IJ, Century 22, 2510 RX-325 MAIL ALL ORDERS TO BARRY ELECTRONICS CORP., 512 BROADWAY. NEW YORK CITY, N Y 10012. Maw Yftrk Pitu * LARGEST STOCKING HAM DEALER turn viiy 9 COMPLETE REPAIR LAS ON PREMISES BARRY...

The First Controller Designed For Portable And Solarpowered Stations

Wired i Tested List price 209 Amateur net 179.95 LOW 25 rriA Current drain. Minlsiufe size Lightweight All metal, shielded enclosure, On-board Lithium Battery RAM backup. On-board watchdog for reliability. Standard D6-25 Connectors, Output signal indicates Connected1' Status. Does not require squelched audio. K RAM'32K ROM. Remote Command Mode for Unattended operation. Hardware command lockout fcr security. Commands compalibfe with our Model PK1_ Retains all othe features of rhe Model PK1....

V

Itjr f'V T C ULi' M l V O fir* LITH c -iMGt u ri *nrttif * cwrrs- itm UVt OP i* 1 I ME F- VI SOLiTHEFN MjPDtc Ci euvt UCfrE THIS tc& H i piufsri* OF rv- Fig* 4 cfta T ramrtf rom H'LO6. tf52 MHz. column 0. After obtaining the desired row and column numbers, press the joystick button to update the display to this portion of the chart The joystick may now. be used as desired to select any further command,

Ic

Most Compact and Advanced Full-Featured HF Transceiver on the Market. S SPECIAL PRICES DISCOUNTS ON RIGS AND ACCESSORIES FROM AEA, ARRL, ALINCO, ALLIANCE, ALPHA-DELTA, AMECO, AMERITRON, AMP SUPPLY, ASTRON, ANTENNA SPECIALISTS, BENCHER, B & W,CSI, CALLBOOK, DAIWA, ENCOMM, HAL, HEIL, ICOM, KDK, KENPROt KANTRONICS, MFJ, MICROLOG, NYE, PALOMAR, R HN, SANTEC, SHURE, TE SYSTEMS, TEN-TEC, TOKYO HY-POWER, VIBROPLEX, WELZ, YAESU For Orders and Price Checks Call 800-523-7731 Indiana call 1-8124220231...

Old Friends

Are you taking advantage of the opportunities amateur radio offers you to find and develop friendships Despite my wide range of interests, the friends I remember most fondly over the years have been ham friends. Sack in the late 40s I shared the low end of 75m with one Sam Harris W8UKS. Sam had a wonderfully wry sense of humor, so we got on famously, it was a bit frustrating for me when his 50 Watts of AM would knock my kilowatt out of the picture in South Africa, I had a pretty good dipole Sam...

Tv

The new IC-I2AT covers from 1260-1299.990MHz, has ten memory channels, memory scant program scan and programmable oFfset, It also features an LCD readout, RITand VXO, 32 built-in tones and a DTMF pad. The 10120 L2GHz mobile transceiver has six memory channels, scanning, an HM-14 up down scanning mic, RIT, LED readout and three tuning rates. Accessories include the ML 12 10 watt amplifier and the PS45 slim* line external power supply. The IC-RP1210 completes your 1.2GHz system. It features a...

Product Report Results

The following Is a compilation the Product Report cards we have received, Equipment Is rated on a scale from 0 to 9, and the average rating for each product is shown A piece of equipment is included in the list c nty if il has been rated by five or more readers. AEA PK-64 Azden PCS-3* Azden PCS-4000 Butternut HF6V Drake TR-7 Heath HW-101 ICOM IC-02AT ICO M IC-04AT ICOM IC-2AT ICOM IC-25A ICOM IC-251A 8 22 7.00 6,00 8.30 7.86 6.40 8.25 7.60 8.42 5,75 7.20 Kenwood TW-2550 Kenwood TR-260 A Kenwood...

Visitor Licensing

It s time to remind you that when you visit here you should bring along a small, two-metre hand-held and meet the hams here, thus adding a beautiful human dimension to your trip to Israel On a radio program recently I heard the figures regarding the number of murders per capita in large cites in America and Europe, It was interesting to note that in spite of the bjg terrorist scare keeping people from going outside the borders of the U.S the number of those meeting violence in Israel is...