3
DR-142 SPECIFICATIONS
Wide band
Narrow band
25 kHz
12.5 kHz
Sensitivity (12 dB SINAD):
0.25 µV
0.25 µV
Adjacent channel:
-70 dB
-60 dB
Spurious rejection:
-60 dB
-60 dB
Image rejection:
-80 dB
-80 dB
Intermodulation:
-65 dB
-65 dB
FM hum and noise:
-45 dB
-40 dB
Conducted spurious:
-57 dBm
-57 dBm
Receiver attack time:
< 30 ms
< 30 ms
Noise squelch attack time:
< 15 ms
< 15 ms
RSSI squelch attack time:
< 5 ms
< 5 ms
RSSI squelch sensitivity
:
Manually adjustable; factory set for –108 dBm
Noise squelch sensitivity
:
Manually adjustable; factory set for 20 dB SINAD @ 1.5 kHz deviation
( 3.0 kHz used for wideband)
AUX OUT frequency response
: 6 - 3000 Hz @ +1 / -3 dB
Audio Output
>700 mW into 8
Ω
, with less than 5 % THD
Sub D 15 Pin Connector
The DR-142 is equiped with a 15 pin female sub D connector with the following functions:
Pin# Function
1 least significant channel select bit (CS0)
2 channel select 1 (CS1)
3 Most significant channel select (CS2)
4 N/A
5 N/A
6 + 8 to 15 VDC input
7 N/A
8 auxilary ouput
9 PC programing port
10 N/A
11 Auxilary monitor input (pull to ground to open squelch)
12 Speaker output
13 Carrier detect output (pulls to 5 VDC through 390 ohms)
14 N/A
15 ground
INTRODUCTION
