User Manual
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
IM08-MT-4E-TXRX Project 1106
General Information
3
RECEIVER PERFORMANCE SPECIFICATIONS
General
Frequency Range: 136 to 174 MHz / 406 to 430 MHz / 450 to 470 MHz / 470 to 520 MHz
799 to 824 MHz / 851 to 869 MHz
Channel Spacing: 12.5, 15, 25 & 30 kHz / 12.5 and 25 kHz for 799 to 869 MHz
Channel Selection: In 2.5, 5.0 or 6.25 kHz increments selected with Radio Programming
Software Package
Number of Channels: Preset capability for 2 banks of 16 channels
Channel Switching Range: ± 2.0 MHz / unlimited for 799 to 869 MHz
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
System Impedance: 50 Ω (Type N connector)
Frequency Generation: Internal Synthesizer
Reference Sensitivity: -118 dBm (0.28uV) for 12 dB SINAD
-118 dBm (0.28uV) for 5 % BER*
Local Oscillator Frequency Stability: ± 1.0 ppm (VHF) / ± 0.5 ppm (UHF) / ± 0.1 ppm 799 to 869 MHZ
Adjacent Channel Rejection (Selectivity): Class A;
< -45 dB; Narrowband Analog
< -75 dB; Wideband Analog
< -60 dB; Digital*
Class B;
< -40 dB; Narrowband Analog
< -70 dB; Wideband Analog
< -60 dB; Digital*
Intermodulation Rejection: Class A;
< -75 dB; Narrowband and Wideband Analog
< -80 dB; Digital*
Class B;
< -70 dB; Narrowband and Wideband Analog
< -70 dB; Digital*
Spurious Response Rejection: Class A;
< -75 dB; Narrowband Analog
< -85 dB; Wideband Analog
< -90 dB; Digital*
Class B;
< -70 dB; Narrowband and Wideband Analog
< -70 dB; Digital*
Conducted Spurious Output Power: < -95 dBm
Hum and Noise Ratio: < -34 dB; Narrowband Analog
< -40 dB; Wideband Analog
Audio Output: 600 Ω balanced line output (congurable for unbalanced line);
De-emphasis or Flat output, +3 dBm maximum level
Audio Distortion: Analog; ≤ 2.0 % (25 °C); ≤ 3.0 % (-30˚C to +60˚C)
Digital as per TIA/EIA 102.CAAB*
Front Panel Controls: Receiver Power On (Norm) / Off
Squelch Disable (Push-button)
Analog & Digital Receive LED indicators
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.