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| Specification | GM338 (Low Band) | GM338 (VHF) | GM338 (UHF) | GM398 (VHF & UHF) |
|---|---|---|---|---|
| Frequency Range | 29.7-36 MHz, 36-42 MHz, 42-50 MHz | 136-174 MHz | 403-470 MHz, 450-527 MHz (1-25W), 450-520 MHz (25-40W) | 136-174 MHz, 403-470 MHz (1-25W), 450-520 MHz (25-40W) |
| Channel Capacity | 128 Channels | 128 Channels | 128 Channels | 160 Channels |
| Power Output | 40-60W | 1-25W | 1-25W, 25-40W | 1-25W, 25-40W |
| Power Supply | 13.2 Vdc (10.8-15.6 Vdc) | 13.2 Vdc (10.8-15.6 Vdc) | 13.2 Vdc (10.8-15.6 Vdc) | 13.2 Vdc (10.8-15.6 Vdc) |
| Channel Spacing | 12.5/20/30 kHz | 12.5/20/25 kHz | 12.5/20/30 kHz | 12.5/20/25 kHz |
| Dimensions (L x W x H) | 255mm x 185mm x 72mm | 186mm x 179mm x 59mm | N/A | 188mm x 185mm x 72mm |
| Weight | 2040g (4.5 lbs) | 1400g (3.15 lbs) | N/A | 1400g (3.15 lbs) |
| Environmental Standards | MIL-STD 810-C, D, E | MIL-STD 810-C, D, E | MIL-STD 810-C, D, E | MIL-STD 810-C, D, E |
| Sensitivity (12 dB SINAD) | 0.25 uV (Typical) | 0.22 uV | 0.22 uV | 0.22 uV |
| Intermodulation | 78 dB (typical) | 75-78 dB (varies) | 75-78 dB (varies) | 75-78 dB (varies) |
| Adjacency Channel Selectivity | 65 dB @ 12.5 kHz | 80 dB @ 25 kHz | 70 dB @ 20 kHz | 80 dB @ 25 kHz |
| Audio Output | 3W Internal, 7.5W & 13W External | 3W Internal, 7.5W & 13W External | 3W Internal, 7.5W & 13W External | 3W Internal, 7.5W & 13W External |
| Audio Distortion | 3% Typical | 3% Typical | 3% Typical | 3% Typical |
| Hum & Noise | -40 dB to -45 dB (varies) | -40 dB to -45 dB (varies) | -40 dB to -45 dB (varies) | -40 dB to -45 dB (varies) |
| Audio Response | +1, -3 dB (300 to 3000 Hz) | +1, -3 dB (300 to 3000 Hz) | +1, -3 dB (300 to 3000 Hz) | +1, -3 dB (300 to 3000 Hz) |
| Conducted Spurious Emission | -57 dBm > 1 GHz | -57 dBm > 1 GHz | -30 dBm < 1 GHz | -36 dBm < 1 GHz |
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Main Product:
walkie talkie,
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radio repeater ,
mobile Radio,
portable radio
