User & Installation manual
VHF- Communication Transceiver
Doc.-Nr.:
DE-3000-800100e
KRT2, KRT2M, KRT2RC
Revision 13.0
Jul. 2016
67 / 67
TRANSMITTER
Power Output
6 W (nominal) @ >13.5V
4 W (minimal)
Harmonic Distortion
<10 % at 70 % modulation
Sidetone Output
>0,5W an 300
Ω (head set output)
Microphone Inputs
2 x standard
(50mV…2V) into 100Ω
or 2 x dynamic
Harmonic Content
>60dBc
Modulation Fidelity
deviation <6 dB von
350…2500Hz
Carrier Noise Level
>35dB at 70% Modulation index
Unwanted Frequency Modulation
<1kHz at m=70% / 1kHz
Duty Cycle
2 minutes on, 4 minutes off;
automatic turn-off after 2 minutes continuous
transmitter operation
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 < ±22.0 kHz
Selectivity
(channel spacing 8.33 KHZ)
-60-dB-bandwidth < ±7.37 kHz
Speaker Output
≥10 W into 4 Ω
AGC Characteristics
Deviation of NF-output < 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)
Figure 24: Transmitter/Receiver
