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UМ126-1

UМ126-1

The UM126-1 is 16 Watt FM amplifier module covering a bandwidth of 2.0-2.5 MHz. This dual stage amplifier is specifically designed for Land Mobile HF band portable radio applications.

Power RF Amplifier:

  • Power = 16 Watts
  • Bandwidth = 2.0 to 2.5 MHz
  • Gain = 32dB
  • Vdd=12.5 Volts
  • 50 Ohms Input/Output Impedances
  • Copper Flange
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Absolute Maximum Ratings (T=25°C)

ParameterSymbolValueUnit
DC supply Voltage VDD 16.5 V
DC gate Voltage, Power control VGG 5.0 V
Input Power Pin 30 mW
Output Power Pout 25 W
Operating Case Temp. Tc -40 to +85 °C
Storage Temperature Tstg -60 to +100 °C

Electrical Characteristics: (Tc = 25°C, Zs = Zl = 50 Ohms. Vdd = 12.5 Volts. Vgg = 5 Volts)

ParameterSymbolMinTypicalMaxUnitTest Conditions
Frequency Range BW 300   308 MHz 50 Ohm load
Output Power Pout 16 20   Watts  
Power Gain PG 32 34   dB  
Total Efficiency h 40 50   % Po=16W, CW
2nd Harmonic F2     -55 dBc  
3nd Harmonic F3     -60 dBc  
Load Mismatch Ψ No degradation or destroy   Pin=10mW,
Po=16W, VSWR =20

Block diagram

  • RF input
  • Gate Voltage (Vgg), Power Control
  • Drain Voltage (Vdd)
  • RF Output (Pout)
  • RF Ground (Case)

Test block diagram

  • С1 - 0.1uF
  • C2 - 100uF