GENERAL Models ............................................................................. K : Basic Model K2 : 4-Key w/LCD Model K3 : Full Key w/LCD Model Frequency Range ............................................................. 136~174 MHz Number of Channels ........................................................ 512 Zones ............................................................................... 50 Max. Channels per Zone ................................................. 250 Channel Spacing .............................................................. Analog : 12.5/15/20/25/30 kHz Digital : 12.5 kHz Operating Voltage ............................................................ 7.5V DC ± 20% Battery Life (5-5-90 duty cycle) ....................................... KNB-31A, 7.5VDC, 1700 mAh : 8 hours KNB-32N, 7.5VDC, 2500 mAh : 12 hours KNB-33L, 7.5VDC, 1700 mAh : 8 hours Operating Temperature Range ........................................ –22°F to +140°F (–30°C to +60°C) Frequency Stability (–22°F to +140°F) ............................ ±2.0 ppm Antenna Impedance ........................................................ 50Ω Dimensions (W x H x D) .................................................. 2-5/16 x 6-3/32 x 1-13/16 in. (58 x 155 x 45.7 mm) with KNB-31A or KNB-32N battery (Projections not included) 2-5/16 x 6-3/32 x 1-9/16 in. (58 x 155 x 39.2 mm) with KNB-33L battery Weight Radio only TK-5210 K 11.11 oz. (315g) TK-5210 K2 11.64 oz. (330g) TK-5210 K3 11.64 oz. (330g) TK-5210 K2 with battery, ............................................ 22.22 oz. (630g) with KNB-31A battery antenna(KRA-22) and belt clip(KBH-11) 23.28 oz. (660g) with KNB-32N battery 17.64 oz. (500g) with KNB-33L battery Receiver ensitivity ........................................................................ Digital (5% BER) : 0.25μV Digital(1% BER) : 0.40μV Analog 12dB SINAD : 0.25μV Selectivity ........................................................................ Digital : -60dB Analog @25/30kHz : -78dB Analog @12.5kHz : -67dB Intermodulation Distortion ............................................... Digital : -75dB Analog @25/30kHz : -75dB Analog @12.5kHz : -68dB Spurious and Image ......................................................... Digital : -80dB Analog :- 80dB Audio Distortion ............................................................... Digital : Less than 1.5% Analog : Less than 2% Audio Output ................................................................... 500mW/ 8Ω Transmitter RF Output Power ............................................................. 5W / 1W Spurious and Harmonics.................................................. 70dB FM Hum and Noise ......................................................... Analog @25kHz : 50dB Analog @12.5kHz : 45dB Audio Distortion ............................................................... Less than 2% Modulation ....................................................................... 16K0F3E, 11K0F3E, 8K10F1E, 8K10F1D