3M MT73H7-4 Serie Manual De Instrucciones página 2

TECHNICAL DATA
POWER
Powered by a rechargeable Li-ion battery pack (ACK081).
3.7 V, 1800 mAh
OPERATING TIME
Expected operating time (according to
standardized measurement) in room temperature
with ACK081
EXTERNAL INPUT
3M™ PELTOR™ Type J111-A
RADIO
Frequency range
Operation mode
Antenna
Channels
Channel raster
Channel spacing
Modulation
Receiver sensitivity
Output power LPD
Output power PMR (EU only)
EXTERNAL INTERFACE PIN OUT
Pin 1
Pin 2
Pin 3
Pin 4
Approximately 18 hours
4-pole connector for external equipment
LPD: 433 MHz PMR (EU only): 446 MHz
Half-duplex
¼ wave, integrated whip antenna
Fixed to the headset
Omni directional
Gain: 2 dBi
LPD: 69 channels PMR (EU only): 16 channels
12.5 kHz
2.5 kHz and 25 kHz
Analog: Max narrow 2.5 kHz (FM),
Typical -120 dBm
10 mW e.r.p duty cycle up to 10%
High power: 150 mW e.r.p
Low power: 20 mW e.r.p
EXTERNAL PTT
Activated when shorted to Pin 2 (ground)
GROUND
INPUT
The input signal is mixed with the WS™ WS LiteCom Plus Headset audio
output level (speaker output).
120.5 mV = Input signal level for which the mean plus one standard
deviation equals 82 dB(A) in cup.
BOOM MICROPHONE OUTPUT
Applied signal at the boom microphone input comes out on pin 4
2.25 mV Microphone input = 30 mV output