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or a TS-140S HF transceiver with general coverage receiver. Compact, easy-to-use, full of operating enhancements, and feature packed. These words describe the newTS-140S HF transceiver. Setting the pace once again, Kenwood introduces new innovations in the world of " look -alike" transceivers! • Covers all HF Amateur bands with 100 W output. General coverage receiver tunes from 50 kHz to 35 MHz. (Receiver specifications guaranteed from 500 kHZ /0 30 MHz) Modifiable for HF MARS operation. (PermJt required). • All modes built-in. LSB. USB. CW, FM and AM. • Superior receiver dynamic range Kenwood DynaMlx'" high sensitivity direct mixing system en sures true 102 dB receiver dynamic range. • New Feature! Programmable band marker. Useful for staying within the limits 01 your ham license. For contesters, program in the suggested freque ncies to prevent ORM to nonparticipants. • Famous Kenwood interference reducing circuits. IF shift. dual noise blankets. RIT, RF attenuator,selectable AGe. and FM squelch. • M. CH/VFO CH sub-dial. 10 kHz step tuning for quick OSY at VFO mode.and UP/DOWN memory channel for easy operation. • Selectable full (aSK) or semi break-in CWo .31 memory channels. Store fre· quency mode and CW wide/narrow selection. Split frequencies may be stored In 10 channels for repeater operation. • RF power output control. • AMTOR/PACKET compatible! • Built-in VOX circuit. • MC-43S UP/DOWN m ic. included. Optional Accessories: • AT·130 compact antenna tuner . AT-250 automatic antenna tuner . HS-5/HS-6/HS-7 reer phones . IF· 23 2C/ IF-10 C computer Interlace • MA·5JVp·1 HF mobile antenna (5 bands) • M8-430 mobde bracket . MC-43S extra UP/DOWN hand mlC. . MC-55 (8-prn) goose neck mobile mlC. . MC-60A/MC-80/MC-85 drsk mcs. • PG·2S extra DC cable . PS-430 power supply • Sp·40/Sp·50B mobile speakers e SP -430 external speaker . SW-l00A/SW-200AISW- 2000 SWfIipoweT meters . TL-922A 2 kW PEP Irnear amplifier (flOt 'or CWOSK) . TU·8 CTCSS tone umt • YG-455C-l 500 Hz deluxe CW filler. YK-455C-l New 500 Hz CW filter. TS-68mos~---=;:::::::::::::;:::;;;;J All -mode multi-bander • 6m (50·54 MHz) 10 W output plus all HF Amateur bands (100 W cutout) • Extended srn receiver frequency range 45 MHz to 60 MHz. Specs. guaranteed from 50 to 54 MHz. • Same functIons of the TS· t405 except orxooer VOX (VOX-4 required for VOX oceratom • Pfeamphherlor 6 and 10 meter band Complere _vICe ffiilnllals a,e ava'lable 10'
• • to something more substantial. 4Z4QZ will continue in his position as the repeater's Technical Custodian. This brings to nine the number of FM repeaters operating on two meters in this tiny Middle Eastem nation. The Young Generation Repeater operates on 145.375 MHz following the lARU Region I (European) Bandplan. Japan: The Japan Amateur Radio league (JARl ) is sponsoring two major operating events this year. Special Events station 8J1YES et the Yokohama Exotic Showcase i s operating on 1.8 MHz-1.2 GHz through October 1, on all modes. 8J6APX will be on the air through September 3 on 3.5-50 MHz, operating CW/SSBJ Packet in celebration 01 Fukuoka '89, the Asian-Pacific Exposition. Soviet Union: A new English-language amateur radio magazine is now available by direct subscription from the USSR. fnfotech Ham Magazine contains such topics as Soviet OX News, Ham-to-Ham visits, technical topics, including VHF/UHF, news about happenings in Soviet radio clubs, and a ham equipment marketplace. Subscription brings with it automatic membership in the Infotech Amateur Radio Club International. Subscription is S36 US via airmaiL Payment must be made to Acct . No. 61901005, VNESHBANK SSSR, Minsk Belbyttehnika. For further information write to Infotech Magazine, PO Box 41, Minsk, 220050, USSR. Tornados The crew ofthe St. Peter's (Missouri) ARC et their October '88 meeting. The evening's program was "How to Reduce Repeat TVf Complaints," given by W00GS (the carrot). After a visit from this bunch, would you complain again? Imagine the mutual interference when two or more of these fish gatherl Fortunately, these fish have developed a very sensitive jam-avoidance system. Using electrical detectors all along its body which compare signals from its own electric organ with those from nearby transmitters, the fish determines whether the jamming signal is at a higher or lower frequency than its own. When the fish figure this out, the one with the higher frequency rapidly moves up a few Hertz, and the one with the lower frequency moves down a few Hertz. It's interesting to notethat these electric fish automatically do as hams do-OSY off the QRM. Perhaps the ham equipment manufacturers or an enterprising home-brewer will take a cue trom this curious creature! years, 2 months, and 3 weeks. Nathan passed his Novice when he was 6, his Tech at age 8, and his General at age 9. He passed his advanced on December 17, 1988, and his Extra only two weeks later. Congratulations to these two exceptional members of our fraternity. Next? UnidenMod Revisited There are several updates and corrections to the Unlden HR 2510 modification article that appears on pages 34-35 of the April '89 issue. RadiO Shack discontinued the OPDT DiP relay, part #275-213A-replace it with the Potter and Brumfield part IT85N110114-12. The reference on page 35 conceming R39, a 2.2k resistor, is Photo A instead of Photo D. Finally, in the sentence following the last reference, change " A1fR2/C1" to " RlIR2IC2." You may reach Uniden's Parts Department at 9900 West Poinle Or., PO Bol( 50483, Indi· anapoiis IN 46250. Tel: (317) 842-1036. Need Manuals? A good source of manuals for old equ ipment Is Hl-lnc., PO Box 864, 1601 Ave. D, Council Bluffs, IA 51501 . They carry manuals for most National, Hallicrafter, Hammarlund, and other rigs of similar vintage. Alabama hams taking part in Emergency Net X-Ray won't soon forget the first weekend of March. As severe weather pounded the state, 170 hams spent over 30 hours handling priority messages. While the weather bureau issued scores of tornado warnings and amateurs assisted with emergency communications , two twisters struck a town just east of Birmingham. Amateurs remained on duty at the National Weather service until Sunday evening. Good workl NotJust Another Fish Tale A recen t Issue of the journal Natu'" describes the wor1l of scientists at the SCripps Oceanographic Institute In California on the electric fish Eigenmannfa. These fish emit electrical discharges in the 300-500 Hz range from an organ on their tails, to detect friend and foe. Young Hams' Net The North American Youth Net Is a newly formed voice net for young amateur, to meet with hams of similar age. It meets on Saturday evenings, 2300 GMT (1900 EST) on 28.450 MHz. This allows young US hams of an license levels to check in. Ten meters has lately been open at that hour in the US. Ham Prodigies Sandi KC4AJO, meet Nathan KG5RClAE. The March 1989 " ORX" column reponed that sandi was probably the youngest Extra Class licensee-she attained this highest levelticket at age 10 years, three months. Her record was edged , however, by Nathan T. Moore KG5ACfAE, ex: N5KSF, ex: KA5YCA, who turned 10 on October 7, 1988, and passed his Exira exam on New Year's Day 1989. Age when he became Extra Class: 10 Errata Please note the following Items to correct: February '89 issue, TS-940 review . The tine,"250 Watts PEP output power" should read " 250 Watts input power." April '89 issue, " Aerial View." There are several errors in the BASIC program. Note the corrections in the next "Aerial View." A Big Hand To • • . •••all those who contributed to this month's QRX column. They are: West/ink Report, Ground Wave, BNT Bulletin, W4CA Log, LCARA Patch, ANARC, Milliwatt, ORZ, Bob Newkirk., Tselil Harmoni, K6DUE, NT2X, ARRl, JARl , CARF, KB4KCH, WB9WDH, WA90 0 Z, and NX5Z. Keep those photos and news items rolling in to 73 Magazine, Forest Ad., Hancock NH 03449. Attn: QRX. 73AmateurRadio • June,1989 11
Page 2 and 3: With One YearWa K7SS , "01 all the
Page 4 and 5: Food for thought. OUf new Un iversa
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Page 24 and 25: • zeroing the frequency of the VF
Page 26 and 27: em Table 2: Frequency Dependent Val
Page 28: Number7on YOtlr Feedback u rd The G
Page 31 and 32: to the PA, giving different power o
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