Kenwood TH-K20 Operation Manual - Page 67

SPECIFICATIONS Note: All specifications are guaranteed within the amateur radio band. General Guaranteed range (MHz) TX & RX Operation Frequency range TX (MHz) RX Mode Antenna impedance Operating temperature range Operating Voltage Frequency stability Dimensions W x H x D (projections not included) Weight TH-K20A/E TH-K40A/E 144 ~ 148 (K/M) 144 ~ 146 (E) 430 ~ 440 136 ~ 174 (M) 144 ~ 148 (K) 144 ~ 146 (E) 400 ~ 470 (M) 430 ~ 440 (E) 136 ~ 174 400 ~ 470 F3E, F2D 50  -20°C ~ +60°C (+4°F ~ +140°F) -10°C ~ +60°C (+14°F ~ +140°F) DC 6.0 ~ 9.0 V (7.4 V nominal) Within ± 2.5 ppm 54 x 111.7 x 25.3 mm 2.13 x 4.4 x 1.00 in Approx. 210 g/ 7.4 oz. Transmitter RF output power High Medium Low Modulation Maximum frequency deviation Spurious emission Modulation distortion Microphone impedance TH-K20A/E TH-K40A/E 5.5 W 5 W 2 W 1 W Reactance Within ±5 kHz Less than -60 dB Less than 5 % (300 Hz ~ 3 kHz) 2 k Receiver TH-K20A/E TH-K40A/E Circuit type Intermediate Frequency (IF) Sensitivity (12 dB SINAD) Squelch sensitivity Selectivity -6 dB -50 dB Audio output Double super heterodyne 1st IF: 38.85 MHz 2nd IF: 450 kHz Less than 0.16 µV Less than 0.18 µV Less than 0.13 µV More than 10 kHz Less than 28 kHz More than 400 mW (8 / 10 % distortion) Specifications are subject to change without notice due to advancements in technology. 59