| TH-K20A | |||
|---|---|---|---|
| GENERAL | |||
| Frequency Range | TX | 144 - 148 MHz | |
| RX | 136 - 174 MHz | ||
| Mode | F3E, F2D | ||
| Antenna Impedance | 50 Ω | ||
| Operation Temperature Range | -20 °C ~ +60 °C | ||
| Operating Voltage | DC 6.0 ~ 9.0 V (Standard Voltage DC 7.4 V) | ||
| Frequency Stability | ±2.5 ppm | ||
| Microphone Impedance | 2 kΩ | ||
| Battery Life* (Figures approximate) | High / Mid / Low | ||
| with KNB-63L | 6 / 8.5 / 10.5 Hour | ||
| with BT-16 | 6 / 8 / 10 Hours | ||
| Dimensions (W x H x D), Projections not included |
Radio Only with KNB-63L |
54 x 111.7 x 14.4 mm 54 x 111.7 x 25.3 mm |
|
| Weight | Radio Only | approx. 138 g | |
| with KNB-63L | approx. 210 g | ||
| TRANSMITTER | |||
| RF Power Output | High | 5.5 W | |
| with BT-16 | approx.3.5 W | ||
| Mid | 2 W | ||
| Low | 1 W | ||
| Modulation | Reactance modulation | ||
| Maximum Frequency Deviation | Within ±5 kHz | ||
| Moduration Distortion | Less than 5 % (300 Hz ~ 3 kHz) | ||
| RECEIVER | |||
| Circuitry | Double super heterodyne | ||
| Intermediate Frequency | 1st IF: 38.85 MHz / 2nd IF: 450 kHz | ||
| Sensitivity (12dB SINAD) | Less than 0.16 μV | ||
| Squelch Sensitivity | Less than 0.13 μV | ||
| Selectivity | -6 dB | More than 10 kHz | |
| -50 dB | Less than 28 kHz | ||
| Audio Output | More than 400 mW (8 Ω / 10 % distortion) | ||
* Assuming a duty cycle of 6-second transmit, 6-second receive, 48-second standby
Specifications are guaranteed for amateur radio bands only. Specifications shown are typical.
Specifications are subject to change without notice, due to advancements in technology.
| Standard | MIL 810C Methods/ Procedures |
MIL 810D Methods/ Procedures |
MIL 810E Methods/ Procedures |
MIL 810F Methods/ Procedures |
MIL 810G Methods/ Procedures |
|---|---|---|---|---|---|
| Low Pressure | 500.1/Procedure I | 500.2/Procedure I, II | 500.3/Procedure I, II | 500.4/Procedure I, II | 500.5/Procedure I, II |
| High Temperature | 501.1/Procedure I, II | 501.2/Procedure I, II | 501.3/Procedure I, II | 501.4/Procedure I, II | 501.5/Procedure I, II |
| Low Temperature | 502.1/Procedure I | 502.2/Procedure I, II | 502.3/Procedure I, II | 502.4/Procedure I, II | 502.5/Procedure I, II |
| Temperature Shock | 503.1/Procedure I | 503.2/Procedure I | 503.3/Procedure I | 503.4/Procedure I, II | 503.5/Procedure I |
| Solar Radiation | 505.1/Procedure I | 505.2/Procedure I | 505.3/Procedure I | 505.4/Procedure I | 505.5/Procedure I |
| Rain | 506.1/Procedure II | 506.2/Procedure II | 506.3/Procedure II | 506.4/Procedure III | 506.5/Procedure III |
| Humidity | 507.1/Procedure I, II | 507.2/Procedure II, III | 507.3/Procedure II, III | 507.4 | 507.5/Procedure II |
| Salt Fog | 509.1/Procedure I | 509.2/Procedure I | 509.3/Procedure I | 509.4 | 509.5 |
| Dust | 510.1/Procedure I | 510.2/Procedure I | 510.3/Procedure I | 510.4/Procedure I, III | 510.5/Procedure I |
| Vibration | 514.2/Procedure VIII, X | 514.3/Procedure I | 514.4/Procedure I | 514.5/Procedure I | 514.6/Procedure I |
| Shock | 516.2/Procedure I, II, V | 516.3/Procedure I, IV | 516.4/Procedure I, IV | 516.5/Procedure I, IV | 516.6/Procedure I, IV |
| International Protection Standard | |||||
| Dust & Water Protection | IP54 | ||||
