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ICOM IC-U20SR 446-PMR Mil-Spec El Telsizi
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PMR446 TRANSCEIVER
IC-U20SRPMR446 Licence Free Transceiver in the Palm of Your Hand
General
| IC-U20SR | ||
|---|---|---|
| Frequency Coverage | 446.00625 ~ 446.19375 MHz | |
| Number of Channels | 16 Channels | |
| Type of Emissions | 8K50F3E (12.5 kHz) | |
| Antenna impedance | 50 Ω | |
| Input Impedance (MIC) | 2200 Ω | |
| Output Impedance (Audio) | 8 Ω | |
| Operation Temperature Range | -25 ℃ ~ 55 ℃ | |
| Power Supply Voltage | 3.6 V DC nominal (Negative Ground) | |
| Current drain | Receive Max. Audio | 0.8 A Maximum |
| (Approximate) | Transmit | 1.0 A Maximum |
| Dimensions (H × W × D) |
156.0 × 50.0 × 26.7 mm including antenna 94.0 × 50.0 × 26.7 mm excluding antenna |
|
| Weight (Approximate) | 157 g | |
TRANSMITTER
| IC-U20SR | ||
|---|---|---|
| Output power | 0.5 W | |
| Modulation | Frequency Modulation | |
| Maximum Permissible Frequency Deviation | ±2.5 kHz | |
| Frequency Stability | ± 500 Hz | |
| Spurious Emissions |
0.01 μW typical (≦1 GHz) 0.01 μＷ typical (＞1 GHz) |
|
| Adjacent Channel Power | 63 dB typical | |
| Audio Harmonic Distortion (AF 1 kHz 40 % Deviation) |
5.0 % maximum. | |
| FM Hum and Noise | 56 dB typical | |
| Limiting Charact of Modulator | 70 % ~ 100 % maximum deviation | |
RECEIVER
| IC-U20SR | ||
|---|---|---|
| Sensitivity (at 20 dB SINAD) | -118 dBm typical | |
| Audio Power Output | Internal Speaker | 600 mW typical @5 % distortion with 4 Ω |
| External Speaker | 150 mW typical @5 % distortion with 8 Ω | |
| Adjacent Channel Selectivity | 65 dB typical | |
| Intermodulation | 54 dB typical | |
| Hum and Noise | 48 dB typical | |
| Squelch Sensitivity (Threshold) | -123 dBm typical | |
Applicable U.S. Military Specifications
| Standard |
MIL-810 G | |
|---|---|---|
|
Method
|
Procedure
|
|
| Low Pressure | 500.5 | I, II |
| High Temperature | 501.5 | I, II |
| Low Temperature | 502.5 | I, II |
| Temperature Shock | 503.5 | I-C |
| Solar Radiation | 505.5 | I |
| Rain Blowing/Drip | 506.5 | I, III |
| Humidity | 507.5 | II |
| Salt Fog | 509.5 | – |
| Dust Blowing | 510.5 | I |
| Vibration | 514.6 | I |
| Shock | 516.6 | I, IV |
Also meets equivalent MIL-STD-810-C, -D, -E and -F.
Applicable IP Rating
| Ingress Protection Standard | ||
|---|---|---|
| Dust and Water | IP54 (Dust-protection, water resistance) | |
All stated specifications are subject to change without notice or obligation.
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