TH-K20A/K20E
35
SPECIFICATIONS
General
Guaranteed range (MHz) TX & RX 144~148 (K/M) / 144~146 (E)
Operation Frequency range (MHz)
TX 136~174 (M) / 144~148 (K) / 144~146 (E)
RX 136~174
Mode F3E, F2D
Antenna impedance 50
Operating temperature range –20°C ~ +60°C (+4°F ~ +140°F)
Operating Voltage DC 6.0 ~ 9.0V (7.4V nominal)
Frequency stability Within ±2.5ppm
Dimensions W x H x D (projections not included) <with KNB-63L> 54 x 111.7 x 25.3 mm / 2.13 x 4.4 x 1.0 in
Weight <with KNB-63L> Approx. 210g / 7.4oz.
Transmitter
RF output power <with KNB-63L/ KNB-65L>
High 5.5W
Medium 2W
Low 1W
Modulation Reactance
Maximum frequency deviation Within ±5kHz
Spurious emission Less than -60dB
Modulation distortion Less than 5% (300Hz~3kHz)
Microphone impedance 2k
Receiver
Circuit type Double super heterodyne
Intermediate Frequency (IF) 1st IF: 38.85MHz 2nd IF: 450kHz
Sensitivity (12dB SINAD) Less than 0.16µV
Squelch sensitivity Less than 0.13µV
Selectivity
-6dB More than 10kHz
-50dB Less than 28kHz
Audio output More than 400mW (8
/ 10% distortion)
Note: All specifi cations (General, Transmitter and Receiver) are guaranteed within the amateur radio band.
Guaranteed frequency range .............................................................. 144~148MHz (K,M)
144~146MHz (E)
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