TN490 19” Rack Mount High Power Amplifi ers
MT-3/4 Radio Systems
TECHNICAL NOTES
Page 1 of 4
LMRSALES@CODANCOMMS.COM
CODANCOMMS.COMTECHNICAL NOTE:
TN490, REV 2-0-0, © Aug 2016
CANADA/US +1 250 382 8268 | TOLL FREE +1 800 664 4066
The 19” rack mount 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 60 - 110, 80 or 100 Watts and is designed
to fi t in 7” (4 RU) of rack space.
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)
768 - 869 MHz (700 / 800 MHz)
RF Output Power (factory set) 60 - 110 Watts (VHF)
100 Watts (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 ≤ -63 dBc @ 60 Watts RF output (VHF)
≤ -65 dBc @ 110 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 @ 60 W (VHF) 17 A (typical) / 22 A (maximum)
Tx Current Drain @ 110 W (VHF) 22 A (typical) / 25 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
HIGH VSWR
HIGH TEMP
LOW OUTPUT
FRONT VIEW
RF OUT
RF IN
ALARM GND
SH/D CTRL
FAN+ GND
+13.8 VDC
GND
REAR VIEW
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