Specifications

Additional Features:
• Each repeater/controller has its
own approved repeater list
allowing for staged system/
fleet upgrades
• CWID: Separate call sign per
channel
• Front speaker for monitoring
the channel activity
• Test mode for setting TX
voice and data levels
• Supports CTCSS/DCS for
conventional operation
• Remote Programming/
Maintenance via DTMF
LTR® is a registered trademark of EF Johnson Corporation. Windows® is a registered trademark of Microsoft Corporation.
Specifications per EIA Standards. In our on-going commitment to quality
specifications are subject to change without notice.
General
CS-540U-TL CS-540V-TL
Operating Voltage:
11 V DC Min / 13.8 V DC Nominal /15 V DC
Max
Channel Spacing: 5kHz/6.25KHz/Splinter
Current Drain: 10A Max
Duty Cycle w/o Duplexer: Transmit: 100 % duty @ 33W output
Weight: 18.5 lbs.
Weight w/ Duplexer: Approx 19.5 lbs.
Frequency Range: 450-480 MHz 148-174 MHz
Dimensions (W x H x D): 19.0” x 3.5” x 14.0”
Frequency Stability: +/-1.0 ppm +/- 2.5 ppm
Operating Temperature
Range:
-22° F to +140° F (-30° C to +60° C)
Receiver
Local Oscillator: Low-side injection High-side injection
Sensitivity (12 dB SINAD): < 0.25 µV @ 12.5 kHz < 0.25 µV @25.0 kHz
Squelch Threshold: Open 12dB SINAD/ Close 8dB SINAD
Selectivity: 62dB @ 12.5kHz 72dB @ 25.0kHz
Spurious Rejection: 75dB
Intermodulation Rejection: 72dB @ 12.5kHz 72dB @ 25.0kHz
Antenna Connector: N-Type
Antenna Impedance: 50Ω
Transmitter
RF Output (w/o duplexer):
Programmable
450-470 @ 0-40W
471-480 @ 0-35W
148-174 @ 0-40W
Modulation: 160K0F3E, 11K0F3E
Maximum Deviation: +/- 5kHz (25 kHz) +/- 2.5 kHz (12.5 kHz)
FM Hum and Noise: 36dB @ 12.5kHz 42dB @ 25.0kHz
Antenna Connector: N-Type
Antenna Impedance: 50Ω
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