Ham Radio 2000

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Text File | 1993-03-09 | 15KB | 1,685 lines

A. B. C. D. what i the control point of an amateur station on/off switch transmitter input/output port a packet controller variable frequency oscillator location at which operator function performed term for operating desk manual must you do to renew or change your operator/primary license properly fill out FCC form 610 and send it in gettysburg PA nearest field office washington DC never need changing renewing Bgrace period" during will expired 10-year 2 year 5 10 there no grace period following frequencie may technician who ha passed morse code test use 7.1 - 7.2 MHz 14.1 14.2 21.1 21.2 28.1 29.2 authorize privilege on 52.525 extra advanced only general novice 146.52 223.50 446.0 addition passing written examination (Element 3A) before are allowed below 30 nothing special needed; all HF band any time notify that intend operate attend clas learn about communication pas Heither element 1A 1B 1C) if licensee have prove authorized A certificate from showing notified them be using instructor attended proof having required transceiver power measured supply terminal inside amplifier final input antenna itself after feed line average supplied transmission one RF cycle crest modulation envelope peak output radio-frequency maximum transmitting permitted beacon operation watt PEP 100 500 1500 rule say service secondary user another primary doe thi mean special; equal right emergencie they not cause harmful interference increase overcome caused by within assigned basis action should take FCC' regional engineer charge transmitter' attempt contact request stop frequencies; causing other violation applie two want same with lesser yield higher lower both ITU region 1 3 emission type alway used identification regardles CW RTTY MCW phone 6-meter transmitted 50.0 54.0 50.1 51.0 52.0 2-meter image 144.1 148.0 146.0 144.0 147.0 200 ERP 1000 NOT earth satellite communications 6 meter 70 centimeter 23 successful completion (CSCE) privileges how identify when 146.34 give call sign followed suitable word denote slant mark identifier "KT" until new arrive needed VE where obtained CSCE shift data 50 0.1 kHz 0.5 above sending speed bauds whichever greater specify symbol rate 10-meter 300 baud 1200 19.6 kilobaud 56 between 28 222 bandwidth multiplexed unspecified digital range 20 total shall exceed single-sideband 450 150 cm called transmit purpose observation propagation reception repeater auxiliary radio fastest automatic 13 per minute 25 limitation language beside english make identifying being providing US third-party agreement country member international telecommunication union suggest aid correct speech compressor Q signal phonetic alphabet unique choice minimum hold coordinator recommended responsible resolving unrecommended stations been longest most recently either primarily shortest information label affixed telecommand Hcontrol) model craft licensee' name addres requirement once every ten minutes beginning end each labeled milliwatt three meant broadcasting intended public direct relayed retransmission program non-amateur one-way content two-way more broadcast brief adjustment practice kind payment message sent amount agreed upon advance donation equipment repair obscene never; prohibited retransmitted through but unwritten among air indecent profane wanted retransmit space shuttle associated agency first approval local (EIC) national aeronautic administration department defense foreign third party speak relative under circumstance qualified let unlicensed station' continuously monitor supervise party' participation made countrie key disaster disrupt normal system area regulated those necessary meet essential facilitate relief allow commercial busines continue affected material compensation paid delivery into production newsgathering included declaration temporary state emergency list organization condition observed schedule know Bbreak break 79," then own "CQ" times wait "CQ," answer why pause briefly check SWR reach pencil paper listen anyone wanting dial up repeater' autopatch keep short long prevent someone see receiving still awake listening non-ham chance respond distance down proper way conversation start calling desired shout break!" show you're eager join turn override whoever talking cut bill else' help mobile low-power extend their usable observing store than mile away Btime out" battery run someone' goe longer get too hot circuitry cool off something wrong commuting rush hours discouraged highway traffic net courtesy tone Hused operations) sound indicate complete waiting activate receiver case severe weather meaning of: "Your full quieting..." strong enough noise spuriou received audio heard report over receiver' S-meter read say: five five..." quieting try imitate quality available open closed private usual separation 600 1.0 1.6 5.0 1.25-meter 70-centimeter VHF UHF instead frequencies minimize capable because propagated locally louder might ask told simplex write can on-the-air minimized lengthy testing loading procedure choose unoccupied dummy load non-resonant resonant require loading-up QTH normally possible increased toll avoided tied unnecessarily antenna' effectivenes better tested would find could communicate clearly receive distant good ruin practical authorization organize assembly provide advice buy person whose group recommend usage QRV QRU QRL QRZ "QSY" slowly faster "QSO" confirmed progres ending QSL QRT seven..." perfectly readable moderately weak considerable difficulty near pure three..." serial number thirty-three located latitude 33 degree strength unreadable very nine plu dB..." factor repeat decibel linearity signal-strength reading 9 distres "MAYDAY" several "HELP" "EMERGENCY" "SOS" MAYDAY QRRR SOS interrupt "BREAK" twice many "SOS," register participate RACES drills club racing civil federal commission hour week six day eight drill official government reason tactical such Bcommand post" Bweather center" informed going efficient coordinate public-service goodwill concerning person' well-being routine formal health welfare immediate safety human life idea without AC lines so while contest comply important accessory hand held portable set charged batterie microphone headset hands-free part three-element quad yagi dipole parabolic dish ionosphere outer atmosphere ion free electron exist propagate wave masse different temperature humidity along travel ionized path lightning struck place long-distance bending waves troposphere stratosphere magnetosphere solar radiation ionizing release fluorocarbon ionization thermal particle ultraviolet microwave ionospheric limit daytime 80-meter distances D E F1 F2 closest F affect sky-wave least useful mainly sub-region electrostatic electromagnetic combine night E1 E2 absorbing absorption occur tropospheric ducting wavelength enter inversion effect lower-frequency absorb bend refract back little presence cloud splitting just sunrise atmospheric attenuation dusk midnight midday dawn shortly noon happen critical absorbed changed reflected source vary wind upper sun highest destination lowest best other' skip zone certain ground-wave scatter-mode distorted close probably occurring line-of-sight scatter visible horizon sky plane geometric ectosphere farther shorter garble reverse sideband low pressure aurora north hundred oceans polar mas widespread overcast cirriform high-pressure often SW MF LF stable unstable low-pressure serie heavy rainfall long-range bands absence 500-600 green wire three-wire cord connected fuse Bhot" side chassi white black Hor red) transformer' winding document almost city basi electrical wiring antennas regulation proceeding IEEE standard building transceiver' cable red retaining screw wall outlet bras silver colored corrosion polarity conduct current reduce skin much flowing body usually fatal 1/10 ampere approximately flow organ fatally small heart brain liver lung painful 1/500 voltage dangerou humans volt 2000 main high-voltage cabinet kill opened sight anywhere seen reached easily high switch-operated precaution leaning shoe watch loose jewelry contacting shield face heat produced sharp edge snag clothing box home sure door cannot placed front able shut electricity warn touch switches even discover burned won't CPR immediately drag few voltmeter circuit parallel quadrature phase adding resistance added reduced ammeter multimeter measure capacitance inductance reactance wattmeter accurate connector one-half impedance ohm directional forward pattern energy heating resistor 90 actual 80 96 4 88 92 marker generator high-stability generate reference exact interval low-stability Bsweeps" inject produce wide amplitude calibrate tuning volume deviation device calibration calibrated oscilloscope wavemeter crystal calibrator WWV WWVH sweep accuracy tune shortwave popular low-level reflectometer measuring aligning tuned adjusting impedance-matching network mismatch field-strength match midpoint 3-30 scale position multiplied 4.5 making adjustments nondirectional nonradiating gain measurement flexible component wire-wound iron-core coil noninductive air-core radiated matcher low-pas filter decoupling off-the-air comparative rating 100-watt continuou 141 175 warm electric static S RST SSB exposure large tissue poisoning paralyze genetic likely damaged eye published guideline institute electronic (IEEE) (FCC) environmental protection (EPA) american (ANSI) ANSI guide allocation height aircraft according u greatest risk 3000 fewer safe 125 7 internal remove shielding ensure cooling interlock bypassed fastened attached magnetic chemical reaction oppose ability admittance basic unit coulomb farad henry tolerance equal-value inductor series half value capacitor ohm' law describe mathematical relationship quantities calculated known I = R x [current voltage] / divided resistance] P [resistance current] [voltage 12-volt supplie 0.25 circuit' 12 48 0.15 1.8 4800-ohm 120 volts mA 40 MA 48000-ohm 400 2.5 250 uA 4000 formula calculate tesla' ampere' kirchhoff' common types plastic porcelain film electrolytic metal-film iron core potentiometer applied transform constant slide moved heated resistor' color thevenin' theorem baudot percent fourth sometime some lost hotter nearby size smaller response dissipation les 100-ohm 10% 110 high-quality 0.1% 5% 20% low-quality tapped resonance tight transformer insulating concentrated electrostatically electrochemically electromagnetically electromechanically determine diameter length whether mounted horizontally vertically metal inserted coil' decrease stay disappear ferrite-core tool incorrectly become magnetized pick shock hazard figure T6-1 represent adjustable wound toroidal layer silicon conductive plate plates spacing dielectric N protective coating modern built-in circuits cutoff low-frequency harmonic fundamental block band-pas high-pas IF section outside found receivers beat-frequency detector variable-frequency driver packet-radio crystal-controlled VFO-controlled stage (BFO) AGC VFO limiter discriminator double-conversion superheterodyne FM pictured T7-1 unlabeled T7-2 T7-3 T7-4 modulator rectifier unmodulated carrier emissions switching amplitude-keyed telegraphy frequency-shift-keyed frequency-modulated telephony phase-modulated tone-modulated feeding microphone' keyed keying voice VHF/UHF repeaters pulse-modulated slow-scan modulated upper-sideband (USB) suppressed-carrier resemble pulse constant-amplitude AF subcarrier varying increasing suppressing failed work amplitude-modulated modulate connect terminal-node-controller keyboard DTMF pad detectable resistant distortion high-fidelity understood somewhat AM mode selected wider sensitivity improve order narrowest widest result overdeviation out-of-channel poor suppression splatter fast overmodulation equally well direction skywave opposite constructed straight fixed square circular loop stacked center angle toward ground beam arranged delta zepp directly driven none parasitic obtain induction trap magnetically couple connection director reflector Hif any) cubical four 1/2-electrical four-sided loops one-electrical vertical conductor 1/4-electrical fed bottom center-fed except triangular rather copper ring finding shape non-directional easy outdoors magnetic-base whip roof car horizontal aimed polarization force earth' surface perpendicular electromagnetic-wave helical half-wavelength parabolical man-made spectrum left-hand right-hand standing-wave ratio traveling top positive drive linear returned negative tree coaxial converted unbalanced neither installed balanced balun triaxial wavetrap RG-213 F-type PL-259 banana plug binding post BNC these los type-N install tower feet RG-58 RG-59 RG-174 apart done loss exces odd roll signal' decreasing line' insulated open-wire damage burn thing mount come regularly clean tighten re-solder connectors looking nice getting stuck