TN491 Modular 5-Pack Series High Power Amplifi ers
MT-3/4 Radio Systems
TECHNICAL NOTES
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LMRSALES@CODANCOMMS.COM
CODANCOMMS.COMTECHNICAL NOTE:
TN491, REV 2-0-0, © Aug 2016
CANADA/US +1 250 382 8268 | TOLL FREE +1 800 664 4066
The modular 5-pack series high power amplifi ers are available in VHF, UHF and 700 / 800 MHz frequency bands.
The power amplifi ers are rated for continuous duty at an RF output power of 80 or 100 Watts. Designed to be fully
modular and space effi cient, the 5-pack series allows for 5 amplifi ers in 4 RU of rack space using a 19” subrack.
Specifi cations
Frequency Bands 136 - 144 MHz / 144 - 152 MHz (VHF)
152 - 162 MHz / 162 - 174 MHz (VHF)
406 - 450 MHz / 450 - 512 MHz (UHF)
764 - 870 MHz (700 / 800 MHz)
RF Output Power (factory set) 100 Watts (VHF and UHF)
80 Watts (700 / 800 MHz)
RF Input Power Range (from exciter) 5.0 to 10.0 Watts (VHF and UHF)
2.0 to 5.0 Watts (700 / 800 MHz)
Spurious & Harmonics ≤ -65 dBc @ 100 Watts RF output (VHF)
≤ -70 dBc @ 100 Watts RF output (UHF)
≤ -70 dBc @ 80 Watts RF output (700 / 800 MHz)
Duty Cycle 100% (-30°C to +60°C)
Load VSWR Tolerance VSWR Protected above 2.5:1
Output Impedance 50
Tx Current Drain @ 100 W (VHF) 18 A (typical) / 23 A (maximum)
Tx Current Drain @ 100 W (UHF) 21 A (typical) / 25 A (maximum)
Tx Current Drain @ 80 W (700 / 800 MHz) 20 A (typical) / 24 A (maximum)
Weight 10 lbs
Depth 19.0 inches
Vertical Rack Space 7.0 inches (4 RU)
Horizontal Mounting 3.4 inches
DC ON LOW OUTPUT HIGH VSWR HIGH TEMP
RF POWER AMPLIFIER
RF IN
ALARM
+13.8 VDC
GND
RF OUT
FRONT VIEW REAR VIEW
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