Kenwood TK-3148 Service Manual

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Contents

TK-314869SPECIFICATIONSGeneralFrequency RangeRX, TX .............................................................................. 350 to 390MHzChannel Spacing ............................................................... 6.25kHz/12.5kHz/25kHzBattery Voltage ................................................................. DC 7.5V ±20%Battery Life ....................................................................... More than 9 hours at 4W (5-5-90 duty cycle with KNB-24L battery)Temprature Range ........................................................... –30˚C to +60˚C (–22˚F to + 140˚F)Dimension and WeightWith KNB-24L (1400mAh battery) ................................. 105 (4.13) H x 56 (2.21) W x 29.5 (1.16) D mm (inch) 0.66lbs (300g)(Dimensions not including protrusions, weight includes antenna and belt hook)Receiver (Measurements made per TIA/EIA-603)RF Input Impedance ......................................................... 50ΩSensitivity12dB SINAD .................................................................. 0.28μV (Narrow)/0.25μV (Wide)Selectivity ......................................................................... 65dB (Narrow)/70dB (Wide)Intermodulation ................................................................ 62dB (Narrow)/70dB (Wide)Spurious (Except for IF 1/2) .............................................. 70dBFrequency Stability ........................................................... ±0.00025% (–30˚C to +60˚C)Channel Spread ................................................................ 40MHzAudio Power Output ........................................................ 500mW at 16Ω less than 5% distortionTransmitter (Measurements made per TIA/EIA-603)RF Power OutputHi ................................................................................... 4WLow ............................................................................... 1WRF Output Impedance ...................................................... 50ΩSpurious ........................................................................... –70dBModulation ....................................................................... ±2.5kHz (Narrow)/±5.0kHz (Wide)FM Noise .......................................................................... –40dB (Narrow)/–45dB (Wide)Audio Distortion ............................................................... Less than 3%Frequency Stability ........................................................... ±0.00025% (–30˚C to +60˚C)Channel Spread ................................................................ 40MHz

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