Explosion-proof interphone GP328 Main functions and features Voice quality: using Motorola's proprietary voice processing technology X-PAND ™ and LLE, enables voice quality crisper, clearer and stronger in noisy environments so that you can still keep communicating. MDC signaling allows high speed data communication speeds of 1200 bits per second. It's scalable and easy to install, just need to insert like a voice storage board option boards . With option board, you can also record up to 2 minutes. RF power can switch the pushing a button, the user can switch between high power and low power according to their specific application, to extend battery life. Ringtones ID "function can be set to 8 different ringing tone for eight specific user / group calls, which according to the eight tones to identify callers. VOX voice-activated function: user can send messages using the hands-free mode, without having to press the talk button.
MOTOROLA GP328 technical parameters Frequency Range:VHF(136-174/300-370/330-400MHz) UHF(403-470/450-527MHz) Number of channels: 16 Dimensions (height × width × thickness):137mm×57.5mm×33mm-40.0mm (due to battery) Weight: 350-500g (due to battery) Channel spacing:12.5/20/25kHz Voltage: 7.5V Working temperature:-30ºC to +60ºC Battery Life (5-5-90 period):(Depending on battery type) high-power 8-11 hours Low -power 11-14 hours
Transmit power: VHF 5W UHF 4W Transmitter Frequency Stability: ±2.5ppm
FM interference and noise: 40dB Receiver sensitivity Audio Distortion :<3% Receiver interference and noise:45dB(12.5kHz) 50dB(25kHz) Audio output power:500mW FCC Modulation:16K0F3E and 11K0F3E