Kenwood TK-780 Service Manual
Also see for TK-780 series: Programming instructionsInstruction manualService manual supplementInstruction manualService manual
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Contents
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79TK-780SPECIFICATIONSGENERALFrequency Range ................................ 146 to 174MHzNumber of Channels ........................... Maximum 250 channelsChannel Spacing ................................. Narrow : 12.5kHz Wide 4k : 20kHz Wide 5k : 25kHzInput Voltage ....................................... 13.2V DC negative groundCurrent Drain ...................................... 0.4A on standby1.0A on receiveE : 8A on transmit E3 : 5A on transmitTemperature Range ............................ –30°C to +60°CFrequency Stability ............................. ± 2.5ppmDimensions & Weight ........................ 140 W x 40 H x 145 D mm, 0.94kgRECEIVER (Measurements made per ETS standard)RF Input Impedance ........................... 50ΩSensitivity (EIA 12dB SINAD) ............. 0.25μVSelectivity ........................................... Wide : 80dB Narrow : 70dBIntermodulation ................................... 70dBSpurious and Image Rejection ............ 80dBAudio Power Output ........................... 4W at 4Ω less than 10% distortionChannel Frequency Spread ................ 28MHzTRANSMITTER (Measurements made per ETS standard)RF Power Output ................................ E : 5 to 25W E3 : 1 to 5WSpurious Emission .............................. ≤ 1GHz : Less than –36dBm > 1GHz : Less than –30dBmModulation Limitting ........................... Narrow : ± 2.5kHz Wide 4k : ± 4kHz Wide 5k : ± 5kHzFM Noise (EIA) .................................... Wide : 50dB Narrow : 45dBMicrophone Impedance ...................... 600ΩAudio Distortion .................................. Less than 3%Channel Frequency Spread ................ 28MHz |
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