Syn-Tech III P25 Portable Radio
OPERATION MANUAL
8.2Transmitter Specifications
TRANSMITTER SPECIFICATIONS
| VHF | UHF | |
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Frequency Range | |||
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Frequency Separation | Full Bandsplit | Full Bandsplit | |
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Channel Spacing | 12.5 / 20 / 25 / 30 kHz | 12.5 / 20 / 25 / 30 kHz | |
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Frequency Step | 2.5 / 3.125 kHz | 2.5 / 3.125 kHz | |
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Rated RF Output Power * | |||
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Frequency Stability * | ± 2.5 ppm | ± 1.5 ppm | |
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Modulation Limiting * |
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Analog 25 kHz channel | ± 5.0 kHz | ± 5.0 kHz | |
Analog 12.5 kHz channel | ± 2.5 kHz | ± 2.5 kHz | |
C4FM Modulation Fidelity ** | ≤ 2 % | ≤ 2 % | |
RMS Error | |||
C4FM Deviation | 1800 ±100 Hz | 1800 ±100 Hz | |
Spurious Emissions * | ≤ | ≤ | |
(Conducted and Radiated) | |||
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Audio Frequency Response * |
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(6 dB/Octave | +1, | +1, | |
from 300 to 3000 Hz) |
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Hum and Noise Ratio |
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Analog 25 kHz channel * | ≥ 52 dB | ≥ 46 dB | |
Analog 12.5 kHz channel * | ≥ 46 dB | ≥ 40 dB | |
Audio Distortion * | ≤ 1 % | ≤ 1 % | |
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* Measured in the analog mode per
** Measured in the digital mode per
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