User's Manual
Table Of Contents
1-7
Table 1-2. Operating Parameters
Standard Test Conditions: 28Vdc Input, +25
C
Characteristics Specifications
General
Frequency Range VHF - (FM) 115 to 173.995 MHz (AM) 115 to 149.995 MHz.
UHF - (FM) 225 to 399.995 MHz (AM) 225 to 399.995 MHz.
Tuning Increments 25 kHz 12.5 kHz and 5 kHz
Channel Spacing 25 kHz
Stability
1 ppm
Preset Channels 10 transmit and 10 receive preset channels.
Modulation AM or FM
Power
Voltage +22 to +34 Vdc
Current 3.5 Amps Maximum
Estimated Battery Life Hours, based on 9:1 ratio receive to transmit.
BB-590/U 7
BA-5590/U 23
BB-2590/U 19
BA-5390/U 30
BB-390/U 11
Operating Modes
Plain Text (PT) AM or FM
Cipher Text (CT) AM or FM
T-R Relay mode, each of the ten preset channels may have separate
receive and transmit frequencies.
Beacon Transmit an emergency audio sweep tone on any selected frequency.
Scan Scan up to 10 channels.
Bandwidth
IF Selectivity
PT - 9.5 kHz, 6 dB down
CT - 15 kHz, 6 dB down
Audio Response PT - 300 to 3000 Hz. (+2, -4 dB)
CT - 30 Hz to 10.24 kHz. (+2, -4 dB)
Receiver Characteristics
Sensitivity (10 dB SINAD)
AM-CT
-105 dBm (1.3V), 16 kb/sec with 70% modulation
AM-PT
-103.5 dBm (1.5V), 1 kHz modulation at 30%
FM-CT
-107 dBm (1.0V), 16 kb/sec with 5.6 kHz deviation
FM-PT
-114 dBm (0.4V), 1 kHz modulation with 6.5 kHz deviation
Input Impedance
50 nominal
RF Signal Level
at the Antenna Port
FM - No Signal to +23 dBm No signal to 200 mW) (typical)
AM - No Signal to 0 dBm No signal to 1.0 mW) (typical)
FM or AM - +27 dBm (500 mW) maximum for short durations to prevent
damage
Image Response 80 dB (typical)
Spurious Response 80 dB (typical)
Squelch Manual adjust, Carrier-to-noise ratio squelch, changing to carrier-level
squelch at stronger signal levels.
Squelch Range
-110 dBm (0.7V) to -80 dBm (22.3V) nominal.