MKU PA 23CM-200W A
Linear Power Amplifier for the 23 cm Band
1240 ... 1300 MHz • 200 W
Big power, high efficiency and best linearity are achieved by our high power amplifier for the 23cm band. In comparison to tube power amplifiers, the new LDMOS transistors need a supply of only +26 V or 28 V. High voltage transformers, waiting for the tube warm-up and retuning of the tube are the past! Safe operation is guaranteed by the internal overheat protection. The built-in sequencer can be used to control other devices like preamplifiers or coaxial relays.
| Specifications | |
| Type | MKU PA 23CM-200W A |
| Frequency range | 1240 ... 1300 MHz |
| Input power | 0.5 W, max. 1 W |
| Output power Psat | typ. 230 W |
| ON voltage (PTT) | switched to ground |
| Harmonic rejection | typ. 45 dB |
| VSWR of load | max. 1.8:1 |
| Maximum case temperature | +55 °C |
| Monitor output | Yes |
| Supply voltage | +26 V DC |
| Current consumption | max. 24 A |
| Quiescent current | typ. 4 A |
| Input connector / impedance | SMA-female, 50 ohms |
| Output connector / impedance | N-female, 50 ohms |
| Case | milled aluminium |
| Dimensions (mm) | 190 x 152 x 26 |
| Weight | typ. 1300 g |
Features
- LD MOSFET technology
- Overheat protection
- Over voltage protection and reverse polarity protection
- Monitor output for forward power detection (DC voltage)
Applications
- Analog and digital transmission systems
Options

- Amplifier mounted on heat sink with fans
Accessories
- Recommended power supply: SP 500 W 24
- Recommended heat sink: SK 200 - 160 1)
- Recommended fan: 2 pieces FAN 80x80 HP 24 V 1)
- Circulator (VAM 1081) as a protection in case of bad antenna matching
You will find further information for dimensioning heat sinks under the rubric heat sinks.
1) Dimensioned for 25 °C ambient temperature
Important note
- Amplifier does not contain coaxial relais!
Industrial use of power amplifiers for Amateur Radio
Our power amplifiers of the MKU-series are exclusively intended for amateur radio applications and will only be sold to radio amateurs with a licence. These products are specified for amateur radio requirements and are not designed for industrial applications. Please notice our list of industrial products or ask for a special version.
- Specifications subject to change without notice -



