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