Kenwood TK-780 Transceiver
Fabricante:
Modelo:
TK-780
Data:
2001
Categoria:
Grupo:
Descrição:
VHF FM TRANSCEIVER

Informação

GENERAL Frequency Range ................................ K,HK : 146 to 174MHz K2,HK2 : 136 to 162MHz Number of Channels ........................... Maximum 600 channels (LTR model), Maximum 250 channels (Conventional model) Channel Spacing ................................. Wide : 25/30kHz, Narrow : 12.5/15kHz (PLL channel step 2.5, 5, 6.25, 7.5kHz) Input Voltage ....................................... 13.6V DC negative ground Current Drain ...................................... 0.4A on standby 1.0A on receive TK-780 : 8A on transmit TK-780H : 12A on transmit Temperature Range ............................ –30°C to +60°C (–22°F to +140°F) Dimensions & Weight ........................ TK-780 : 140 (5.51) W x 40 (1.58) H x 145 (5.73) D mm (inch), 0.94kg (2.07 lbs) TK-780H : 140 (5.51) W x 40 (1.58) H x 173 (6.84) D mm (inch), 1.05kg (2.31 lbs) Receiver (Measurements made per EIA standard EIA/TIA-204-D) RF Input Impedance ........................... 50Ω Sensitivity (EIA 12dB SINAD) ............. 0.25μV Selectivity ........................................... Wide : 80dB Narrow : 70dB Intermodulation................................... Wide : 75dB Narrow : 65dB Spurious and Image Rejection............ 90dB Audio Power Output ........................... 4W at 4Ω less than 5% distortion Frequency Stability ............................. ±2.5ppm from –30°C to +60°C Channel Frequency Spread ................ K,HK : 28MHz K2,HK2 : 26MHz Transmitter (Measurements made per EIA standard EIA-152-C) RF Power Output ................................ TK-780 : 25W TK-780H : 45W Spurious and Harmonics..................... 70dB Modulation .......................................... Wide : 16K0F3E Narrow : 11K0F3E FM Noise ............................................ Wide : 50dB Narrow : 45dB Microphone Impedance...................... 600Ω Audio Distortion .................................. Wide : Less than 3% Narrow : Less than 5% Frequency Stability ............................. ±2.5ppm from –30°C to +60°C Channel Frequency Spread ................ K,HK : 28MHz K2,HK2 : 26MHz

mostrar mais

Serviço Manual Supplement
Tipo de manual:
Serviço Manual Supplement
Páginas:
69
Tamanho:
3.94 Mbytes (4130838 Bytes)
Idioma:
english
Revisão:
ID de manual:
B51-8581-00 (N) 1370
Data:
2001 05 01
Qualidade:
Documento eletrônico, digitalização, bem legível.
Data de upload:
2017 01 01
MD5:
8e473f9feb3b6c5f4cf15a31a1fe7dad
Downloads:
1419

Informação

This service manual applied to products with 30200001 or subsequent serial numbers. In terms of the products with the serial numbers earier than 30200001, refer to the TK-780.H service manual as per part No. B51-8461-10. GENERAL ... 2 OPERATING FEATURES ... 3 REALIGNMENT ... 15 INSTALLATION ... 20 CIRCUIT DESCRIPTION ... 28 SEMICONDUCTOR DATA ... 33 DESCRIPTION OF COMPONENTS ... 35 PARTS LIST ... 37 EXPLODED VIEW ... 47 PACKING ... 48 ADJUSTMENT ... 49 PC BOARD VIEWS PLL/VCO (X58-4540-11) : K2,HK2 ... 57 PLL/VCO (X58-4712-70) : K,HK ... 58 TX-RX UNIT (X57-6480-XX) (A/2) ... 59 TX-RX UNIT (X57-6480-XX) (B/2) ... 65 SCHEMATIC DIAGRAM ... 69 BLOCK DIAGRAM ... 77 LEVEL DIAGRAM ... 80 TERMINAL FUNCTION ... 82 SPECIFICATIONS ... 83

mostrar mais