ATR833A-II / P/N 833-II (Axxx)-(Axxx)
Operation and Installation
Doc.-No. 01.143A.010.71e / Revision 1.00
50
COMPASS-SAFE DISTANCE
30 cm
INTERCOM-INPUT
Microphone inputs are connected to the
intercom input.
100 mV
RMS
at the microphone
input produce 0,5W output power at the
headphone (300
Ω).
NF (AUDIO) - INPUT
1V / 600Ω
TRANSMITTER
POWER OUTPUT
6 W (nominal)
4 W (minimum)
HARMONIC DISTORTION
< 10 % at 70 % Modulation
SIDETONE OUTPUT
>0,5W at 300Ω (headphone output)
MICROPHONE INPUTS
2 Inputs for standard and
dynamic microphones
Standard: 50mV -
2V at 100Ω
Dynamic: 5mV
pp
– 10mV
pp
HARMONIC CONTENT
>60dBc
MODULATIONFIDELITY
Deviation <6dB von 350-2500kHz
CARRIER NOISE LEVEL
>35dB at 70% modulation
UNWANTED FREQUENCY-
MODULATION
<1kHz at m=70% / 1kHz
DUTY CYCLE
capable
of
continuous
transmission,
automatic interrupt after 35 seconds
RECEIVER
SENSITIVITY
-105 dBm
(>6 dB S+N/N, m = 30 % /1 kHz)
BANDWIDTH / 25 kHz
-6-dB-bandwidth > ±8.0 kHz
BANDWIDTH / 8.33 kHz
-6-dB-bandwidth > ±2.78 kHz
SELECTIVITY
(channel spacing 25 kHz)
-40-dB-bandwidth < ±17.0 kHz
-60-dB-bandwidth < ±25.0 kHz
SELECTIVITY
(channel spacing 8.33 kHz)
-60-dB-bandwidth < ±7.37 kHz
NF-OUTPUT
≥4 W at 4 Ω (speaker output)
AGC CHARACTERISTICS
AF output deviation < 6 dB
from 10 µV to 10 mV
SQUELCH
automatic Squelch (adjustable)
SPURIOUS RESPONSES
> 80 dB
DISTORTION
(350…2500Hz)
<25% at rated power (85% / -33dBm) / <10%
at
10dB
below
rated
power
(70% / -33dBm)