MKU PA 4047-120 HY
UHF MOSFET Power Amplifier
400 ... 470 MHz • 120 W
Specifications | |
Type | MKU PA 4047-120 HY |
Frequency range | 400 ... 470 MHz |
Input power | typ. 100 mW |
Output power | typ. 120 W (CW) |
Output power P1dB | typ. 35 W (CW) |
Input return loss (S11) | typ. 10 dB |
Efficiency | typ. 45 % at 120 W (CW) |
Gain flatness | +/- 1 dB |
Harmonic rejeciton | typ. 60 dB |
IM3 @ 40 W PEP | typ. -27 dBc |
VSWR of load | max. 1.8:1 |
Maximum case temperature | +55 °C |
Supply voltage | +12 ... 14 V DC |
Current consumption | max. 28 A |
Quiescent current | typ. 8 A |
Input connector / impedance | SMA-female, 50 ohms |
Output connector / impedance | N-female, 50 ohms |
Case | milled aluminium |
Dimensions (mm) | 124 x 80 x 22 |
Weight | typ. 400 g |
Features
- Good linearity
- Built-in low pass filter for good harmonic rejection
- Over voltage protection and reverse polarity protection
- Monitor outputs for forward power detection
Applications
- Analog and digital transmission systems
- Power amplifier for radio amateur applications (SSB, CW)
Options

- Amplifier mounted on heat sink with fans
Accessories
- Recommended power supply: SP 320 W 12
- Recommended heat sink: SK 200 - 125 1)
- Recommended fan: 2 pieces FAN 60x60 HP 12 V 1)
You will find further information for dimensioning heat sinks under the rubric heat sinks.
1) Dimensioned for 25 °C ambient temperature
Important note
- Recommended output power for radio amateur applications:
Modulation type: CW/FM up to 120 W, SSB up to 35 W - Module does not contain coaxial relay!
- Specifications subject to change without notice -



