Radio Amateur 12-1985
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...
Xr2211 Tuning - Radio Amateur 12-1985 - Amateur Radio Archive
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...
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...
Midian Electronics Dtcs And
Midi an Electronics nas introduced two products for mobile radio service, the DTCS-i DTCSS encoder decoder and me 6TD-1 Burst Tone Decoder The DTCS-1 piogrammapie DTCSS on cooer'decOder to compatible *ith Digital Private Linetv. Digital Channel Guard Digital Quiei Channel'*. anti Digital Call Guard'* The 0TCS-1 employs the 64 sian* dard digital codes plus additional non standard codes and uses a 134-H* turn The BTD-1 Burst Tone Decoder features operation over a wide input range After a burst Is...
Pc Electronics
Nova Scotia on 421 7f 6330, 10.536, and 13,520 kHz also puts out good facsimile signals CFH usually broadcasts one or two charts tor the first 15 to 30 minutes ot each hour I have also heard and printed charts from a number of other stations. Try 7640, 7670, 9400, 10,400 12,125, 14,435, 14,5 14,610, and 14737 kHz. Several improvements to VISIFAX jump to mind A nice feature would be saving and restoring charts from disk. Sometimes a chart is received without...
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...
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...
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...
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....
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...
Battle Of Kwajalein And Roinawup
The Kwajalein Amateur Radio Club win operate special-event station KX6BU from 0600 UTC on February 1, 1986, until 0600 UTC on February 10, 1986, to commemorate the 42nd anniversary of the Battfe of Kwajalein and Roi-Namur. Frequencies will be SSB-28.550, 21.350, and 14.250 CW 28.050, 21.050. 14.050, and 7 025 For 6,00, stations working K.X6BU will be issued a certificate, a QSL, and a 64-page book describing the Battle of Kwajalein and RofcNamur. 3.00 will bring a QSL and a certificate. All...
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...
Ramsey Digital Multimeter
FleiFabit, accuriin- dlgiial frnea- urements at an anni unjiv w cos * irvlinf collar co-dflrj pusn biittbni apeedt range selection * ahs plastic 1 n -'and * lecessei input Jacks overlaid protection OH al Tange- * 3 i digit LCD display wilti amo *fo autfi ' i lew 3AT ii- dstsri-' zi uut ''i fit a r**eJOhroiJit price saiu 3fr e*icy igei * - .a tei H 6 gafelinwi jnits *ct .'.t, 50 iV 150 MHz Typ*C t wfwtmty mOe fw osf ,frHl fr AM tn -n S3D0 -tarLjf*a3 irii ilafllflr gilt- ITVf' 9 dtqfts -.J-'-c...
Vk Rtty Group
The South East Queensland Teletype Group recently held a miner in the Communications Binding of the South Brisbane TAFE College. iho main aim being io introduce interested amateurs into the RTTY mode ol operation. The seminar covered most subjects on RTTY from very ba sic topics to the writing ol the most complicated computer programs for RTTY and was deemed a great success by all who attended. The introduction to the seminar was given by ih president of the SEQTG, Doug VK4A0C, who also...