Évaluations - 4, GPA: 4 ( )

Fabricant : Kenwood Taille : 2.05 mb Nom Fichier : Langue d'enseignement:

15 mA Approx. 15 mA Transmit with H, 13.8V Approx. 1.3 A Approx. 1.6 A Transmit with H, 6.0V Approx. 1.3 A Approx. 1.6 A Transmit with L,6.0V Approx. 0.5 A Approx. 0.5 A Transmit with EL, 6.0V Approx. 250mA Approx. 250mA Grounding method Negative ground Dimensions (W x H x D) 56 x 116.5 x 24.5 mm Dimensions (projections included) 65 x 130.5 x 29.8 mm Weight2 Approx. 290 g Microphone impedance 2 kCL Antenna impedance 50 ÎÎ 1 Some versions have reduced RX and TX range: 144 to 146 MHz 2 Antenna, hand strap, belt hook, and PB-32 included '--—- TH-22A/22AT/22E TH-42A/42AT/42E Transmitter Power output H, 13.8 V Approx. 5 W H, 6.0 V Approx. 3 W Approx. 2.5 W L, 6.0 V Approx. 0.5 W EL, 6.0 V Approx. 30 mW Modulation Reactance Maximum frequency deviation ± 3.5 kHz to ±5 kHz Spurious emissions -60 dB or less Receiver Circuitry Double conversion superheterodyne' 1st intermediate frequency 45.05 MHz 2nd intermediate frequency 455 kHz Sensitivity (12 dB SlNAD) -16 dB ft 0.16 fxV or less -15 dB,« 0.18 fN or less Squelch sensitivity -20 dBA (0/ p\l) or less Selectivity (-6 dB) 12 kHz or more Selectivity (-40 dB) 28 kHz or less Audio output (10% distortion) 200 mW or higher (8 iî load) Specifications are subject to change without notice due to developments in technology, and are guaranteed within Amateur bands only. 63 GLOSSARY 1 MHz Step A function that steps the transceiver up or down in frequency by exactly 1 megahertz and increments or decrements the MHz digit by 1. The function works in a circular fashion. If a 1 megahertz step places the new frequency outside the transceiver band limit, the transceiver sets the MHz digit such that the new frequency is inside the opposite band limit. APO (Automatic Power Off) A function that automatically turns OFF the transceiver after some period of inactivity. The purpose is to prevent a forgetful operator from accidentally discharging the transceiver’s battery supply. Auto Page Cancel A function that automatically switches OFF the Page function after Page codes have been transmitted. The purpose is to avoid sending Page codes at the start of every transmission. Automatic Transmit Offset This function is for repeater users. It automatically selects the correct transmit frequency offset (both direction and amount) according to established band plans. Autopatch A service available widely in the U.S.A. and Canada that allows portable or mobile stations to access the public switched network by connecting through a local repeater. Telephone numbers are sent via DTMF signals by using the keypad. Only non-commercial communication is authorized. Battery Saver An energy-saving function that reduces power consumption after 5 seconds of inactivity. The function makes possible longer times between battery charges. BNC A threadless connector universally used at VHF and lower UHF frequencies. The connection is secured by a quarter-twist of the male connector. Beep Tone A selectable function that generates a tone each time a key is pressed to provide audible confirmation that the key was actually pressed, or to provide an error tone to indicate an error condition exists. Busy Frequency Lock-out A function that automatically prevents transmission on a frequency that is busy. 64 CaH channel A frequency intended for establishing contact with other stations. A transceiver key is dedicated to the Call channel so the frequency can be recalled quickly. Call/Memory Scan A scan function that allows alternate monitoring of the Call channel and the current memory channel. The current memory channel is the memory channel selected or used last. See "Scan". Call/VFO Scan A scan function that allows alternate monitoring of the Call channel and the current VFO frequency. The current VFO frequency is the frequency selected or used last while in VFO mode. See "Scan". Channel Display A function that shows only the memory channel number on the display instead of both the frequency and the memory channel number. CO (Carrier-operated) Scan When scanning, Scan stops at all carriers received and resumes 2 seconds after the carrier stops. CTCSS (Continuous Tone Coded Squelch System) Also referred to as Tone Squelch. A method of receiver squelch control that uses a subaudible tone superimposed by the transmitter on the transmitted signal. Only signals received with a subaudible tone that matches the tone selected at the receiver can open the receiver squelch. CTCSS frequency The subaudible frequencies used by CTCSS. Default settings The values selected for VFO frequency, Call channel frequency, frequency step, etc. by the transceiver after it is reset- All transceivers are shipped from the factory with default settings. DTMF (Dual Tone Multi-Frequency) signal A signal created by combining two discrete audio frequencies. Generally used for sending digits for repeater control or Autopatch applicat...

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