Info
Fig 7c Tone-detector schematic. 38 73 for Radio Amateurs * December, 1985 tween the receiver audio output and joystick port 2 of the computer. The detector converts the facsimile tones to TTL pulses that the computer can use. 1 he circuit is shown in Figr 1, The circuit is based on the XR2211 integrated circuit used as a tone detector. R1 and C1 determine the detector's frequency, and R2 is used to adjust tor the sharpest detail as a chart is being received. The LED serves as a simple but...
Am Help
We are happy to provide Ham Help frjrr ings tree, on a space-avaitabie basis We are not happy when we have to take time from other duties to decipher cryptic notes scrawled illegibly on dog eatod postcards and odd sued scraps of paper Ptease type or pnnf your regi esf (neatty'i double spaced, on an 8 v k M sheet of paper and use upper- and lowercase tetters vvnere appropriate Also please make a T' foot tike a V' nor an which could be an er or an eye ' and so on Hard as it may be to Geneve we...
The Foundation For Amateur Radio
Has announced the winners of this year's FAR scholarships the John W. Gore Memorial Scholarship ( 900 to James H. Baker KJ4YN the Richard G. Chichester Memorial Scholarship ( 900) to Eugene S, Reiily KA8J1G the Edwin S. VanDusen Memorial Scholarship ( 350) to Richard K. Soper KA2IKV the QCWA Memorial Scholarships ( 600) to Frances P. Horan KA3CJR. Hai T. Nguyen KA0ALZ, Carl H, Puckett KA7BWC. John E. Schnupp N3CNL, David J, Schmocker KJ9lt and John G. Sullivan N2DYC the QCWA Robert S. Cresap...
Heil
LAMERITRON IWELZ ILARSEN BUTTERNUT I BENCHER AVANTI CALLBOOK ARRL BOOKS CABLE CONNECTORS VJ5A M ASTER CARD FREE SHIPPING ON MOST RIGS FOR CASH VJ5A M ASTER CARD FREE SHIPPING ON MOST RIGS FOR CASH S.A.S.E. FOR OUR BENCH-TESTED USED EQUIPMENT LISTING 4124 West Broadway, 1 -612-535-5050 Robbinsdale, MN 55422 (Mpls. St. Paul) (IN M'TnT COLLECT) MON-FRI 9 AM - 6 PM CENTRAL TIME SATURDAY 9 AM 5 PM
Hygain Bs Antenna
II there's one thing you soon realize after making your tirst contacts on VHF. irs ihe need lor some kind of gain antenna n can pe a collinear a& d-wave. an Mended J or a zepp. but whatever ihe cfroice he message is clear UnpiT-ga-n aniennas -Lre fine for (oca or repeater work, but they won't cut it tot weak-signal or long haul FW simplex Qh of the classic solutions lo this cirph mn is tfx yagi or beam Vienna With I hu type of antenna, a resonant dipole rs used on a common boom with several...
Amateur Testcalm From Twin Oaks
Amateur Testcalni Is an anxlety-reduc-ing audio cassette offered by Twin Oaks Associates. Developed by Dr, Thomas Linde KZ0T and Dr. Michael Whiddon, Am ateur Testcalm is intended to increase a student's attention, concentration and data recall, The student hears simultaneous verbal and non-verbal messages designed to reduce apprehension and stress during amateur licensing exams. For more details, contact Twin Oaks As so dates, Rl 5, Box 37, KnoxMe IA5Q138 Basic Electronics Technology -s a nsA...
Scom Mrc Repeater Controller
S-Com s MflC-100 is a 6809-based repeater conirolicr Wilh 0K of NOVRAM and 16K ol EPROV Features include a polite CW identifier, C . messages wjtn variable speed and pitch, an auiopatch ano reverse autcpatch Fth mi ed mode dialing a 200-number telephone dialing memory DTMF ana & f6-tonf- paging, a CW clock and calendar, and programmable passwords for remote control The MRC 100 requires3-15 volts at less lhan 300 mA A diode-Isolated automatic external-battery changeover input is also provided...
Gripmate Enterprises Offers Extra Hands
A new product from Gripmate Entef prises solves the not enough hands problem for hobbyists. The Gripmale consists of a base, which is clamped io the worY table, and four adjustable arms, each ol which carries an alligaior clip Two ex Ira arms provide a magnifying glass and j magnei for special jobs. More information is available irom Grip-mate Enterprises. Inc., PO Box 6179. Arlington VA 22206 0168. Advanced Electronic Applications inc has announced the model PK-64 packel. RTTY. AMTOR and Morse...
Of Hp
SG-13 U AIRCRAFT VOR ILS SKjNAL GENERATOR RAf-JGE OS MHZ THRU 1359 MHZ ANC 2299 TO 335 MHZ, OUTPUT SIGNAL INCLUDE VOR. LOG AND GLIDESLOPE AND 1000 CPS SAME AS COL LINS 479T-2, OPERATES FROM 28 VDC AT AMPS BENCH POWER SUPPLY OR AIRCRAFT BATTERY IDEAL FOR AIRCRAFT RADIO REPAIR 285 00 JERROLD 900A SWEEP GENERATOR RANGE 0 5 O 120C MHZ 0.5 TD 00 MHZ SWEEP OUTPUT IS FLAT 5DQ TO 900 MHZ. 1.5DB TD 1200 MHZ BUILT lf, Rf DE EC DR 025 00 HP8551B B51B SPECTRUM ANALYZER AND CMS PLAY SECTION. FREO FLANGE 101...
Klm
Austin Custom Antennas RFD 1rTenney Road Sandown NH 03873 F9FT (Tonna from France) by N& .G Distributing Corporation 7201 NW 12th St, Miami FL 33126 Communications Concepts 2648 N. Aragon Ave. Dayton OH 45420 Mirage Communication Equipment PO Box 1000 Morgan Hill CA 95037 Tokyo Hi-Power Labs by ENCOMM Inc. 2000 Avenue GT Suite 800 Piano TX 75074 Janei Laboratories 33690 Eastgate Cir Corvallis OR 97333 Radiokit PO Box 4115 Greenville NH 03048 Advanced Receiver Research PO Box 1242 Burlington...
Glb Pk Packet Controller
Pai fl-radio controllers offered loday are of t wo type s 1T A P R-com pat i bte and bnot TAPR-compatibte. A similar rtestinotion ia made in the modem industry between Hayes ana 'not Hayes. No one is saying thai Hayes modems are better lhan non-Hayes modems1 or (hat TAPR TNCs are better than nonTAPRs They're simply different. The GLB PK I TNC fTer' minal Nodn Controller) falls into the noi-TAPRr oaleflOry. The PK t is small < 5*x10fr ' and the reason is clear once you ope the case inside...
Glb Pkl Portable Packet Controller
GLB Electronics has Introduced Ihe PK1L, a packet-radio controller designed specifically for portable and solar-powered dlgipeaiers. The PKiL is entirely self-contained in a 4.6' x 59' y 1 - shielded enclosure. The circuit includes an on-board CMOS Z BOA CPU. 8K pf programmable memory a preprogrammed 32K ROM, an FtS 232 interface, ano a packet modem The system draws 25 mA and can be powered by solar cells or a 9-Voil transistor-radio battery. A lithium battery -sem io ed for memory retention....
Aes Branch Stores
WICKUFFE Ohio 44092 28940 Euclid Avenue Phone 216 585-7388 Ohio WATS 1-800 362-0290 Outside t oArt oo T icqa ORLANDO. Fla. 32803 621 Commonwealth Ave, Phone 305 894-3238 Fia. WATS 1-800-432-9424 Outside 1 aAA liin CLEARWATER, Fla. 33575 1898 Drew Street Phone 813 461-4267 Ho fn-State WATS Sir 1-800 321-3594 ST 1-800-327 1917 No Nationwide WATS S LAS VEGAS, Nev. 89106 1072 N. Rancho Drive Phone 702 647-3114 No In-State WATS CHICAGO, Illinois 60630 ERICKSON COMMUNICATIONS 5456 N. Milwaukee Avenue...
Lts Transverter
The 1296-MHz amateur pand, 01 23 centimeters is is frequency called has long been a dark mystery to most amateurs. The log'strcs of gett-ng something Q oscillate ai lhat frequency in j siabie manner. as well as amplifying he resultant signal and modulating II. have served Co discourage all but the most technically competent amateurs from ever operating n the band Add the problems of designing .i high-gain, low-noise front and. and the diltlcullies of getting all of Ihis stuff to worn with piles...
Heathkit Smart Outlet
I-eatnkit's mar Outlet Box waifs unM a cevice plugged irio one of seven sock ets 'S turned on. then supplies power to it and the remaining six outieis An eighth outlet Is constantly on for uruts such as clocks which require continuous power Tne Smart Outlel uses UL-approved surge protectors and power taps, and is available In either kit or assembled lorrn. To receive more information about the Smart Outlet Box and a rec Heath cata iogr write Heath Company Dept 150-589 Benton Hafbar Mi 49022 In...
Off
Just slightly ahead of our time The Panasonic Command Series With double superheterodyne tuning, you'll hear the world loud and dear. Now it's easy to listen in on the world's hot spots. With the Panasonic RF-B600 Command Series FM LW MW SW receiver Its advanced microcomputer-controlled tuner lets you preset up to nine different frequencies. And reach them at the touch of a button. Or press the appropriate buttons and tune in any desired frequency with direct-access digital tuning. It'll lock...
Rtty
RTTY acilvily from the north coast of Tasmania has Increased lately, courtesy of VK7NW. The main operating time is 1000 UTC on 3 025 MHz. For those Inter ested In RTTY, other UTC broadcast ttmes from VK2 are 3,545 0930 VK2HL HoretJ 7 045 0030 VK2DPM iAIan Tasmania, being very mountainous compared with trie rest of Australia, has, over its smalt area, lour repeaters on -me-ter FM and fOur on 70 cm. and It is not unusual for the VK7 operators to access the VK3 or VK5 2-meter repeaters across the...
