User's Guide

UHF Amplifi er Instruction Manual
IM23-UT400AMP
General Information
2
Performance Specifi cations
Type: MT-3 series UHF Amplifi er module
Compatibility: MT-3 series Transmitter Main Board
MT-4 series Digital Transmitter Main Board
Frequency Range: 406 to 430 MHz, 450 to 470 MHz,
470 to 490 MHz, 490 to 512 MHz
RF Power Output: adjustable 0.5 to 2.0 Watts or 2.0 to 8.0 Watts
RF power Input: nominal level adjustable from 0 dBm to +5 dBm,
held within +/- 2 dB of nominal.
Ouput Impedance and VSWR: 50 Ω, Type N connector; 3:1 max. VSWR.
Input /Output Isolation: > 60 dB
Duty Cycle: 100%: Continuous operation from -40˚ C to +60˚C.
Harmonic Emissions: Less than -90 dB
c
.
Transmitter Mismatch Protection: 20:1 VSWR at all phase angles.
Transmitter Alarm: Forward power sense and reverse VSWR;
- open collector output (separate or ‘OR’ed confi guration);
- linear output (separate lines only).
Operating Temperature Range: -30˚ C to +60˚ C, optional -40˚ C temperature test.
Operating Humidity: 95% RH (non-condensing) at +25˚ C.
Operating Voltage: +13.8 Vdc Nominal (range +11 to +16 Vdc),
+9.5 Vdc Regulated.
Amplifi er Standby Current: less than 1.0 mA.
Amplifi er Enable: Active to ground.
Amplifi er Enable Response: typically overdamped, rising to within 90% of full power within 5 msec;
maximum (underdamped) overshoot of 30%.