Midland Syn-Tech III P25 Instruções de Operação descarregar pdf (Página 82)

Syn-Tech III P25 Portable Radio

OPERATION MANUAL

680-090-2040

Version 6.4

http://www.midlandradio.com

8.2 Transmitter Specifications

TRANSMITTER SPECIFICATIONS

VHF

UHF

Frequency Range

136-174 MHz

380-470 MHz

Frequency Separation

Full Bandsplit

Channel Spacing

12.5 / 20 / 25 / 30 kHz

Frequency Step

2.5 / 3.125 kHz

5.0 / 6.25 kHz

Rated RF Output Power *

1-5 W

Frequency Stability *

(-30C / +60C; 25C ref)

 2.5 ppm

 1.5 ppm

Modulation Limiting *

Analog 25 kHz channel

Analog 12.5 kHz channel

 5.0 kHz

 2.5 kHz

 5.0 kHz

 2.5 kHz

C4FM Modulation Fidelity **

RMS Error

C4FM Deviation

≤ 2 %

1800 100 Hz

≤ 2 %

1800 100 Hz

Spurious Emissions *

(Conducted and Radiated)

≤ -70 dBc

Audio Frequency Response *

(6 dB/Octave Pre-emphasis

from 300 to 3000 Hz)

+1, -3 dB

Hum and Noise Ratio

Analog 25 kHz channel *

Analog 12.5 kHz channel *

≥ 52 dB

≥ 46 dB

≥ 40 dB

Audio Distortion *

≤ 1 %

* Measured in the analog mode per EIA-603 under nominal conditions.

** Measured in the digital mode per TIA-102.CAAA under nominal conditions.

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