MKU PA 131000 CU
Linear High Power Amplifier for the 1.3 GHz band
1280 ... 1300 MHz • 1000 W
This linear high power amplifier was developed for producing high frequency energy for accelerators applications. High power, high efficiency and best linearity are achieved by our high power amplifier for the 23 cm amateur radio band. In comparison to tube power amplifiers, the used LDMOS transistors operate with a supply voltage of only +50 V DC. High voltage transformers, waiting for tube warm-up and retuning of the tube are the past! The amplifier can be mounted near the antenna to avoid power loss caused by long coaxial cable.
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. An output power of 2 kW is achieved by combining two MKU PA 131000 CU amplifiers. This is ideal for EME (earth-moon-earth operation)!
Specifications | |
Type | MKU PA 131000 CU |
Frequency range | 1296 MHz (1280 ... 1300 MHz) |
Input power | 20 W ... 30 W |
Max. input power | 30 W |
Output power | 1000 W |
Efficiency | typ. 50 % |
Input return loss (S11) | min. 10 dB |
Harmonic rejection | typ. 37 dB @ 1000 W |
VSWR of load | max. 1.8:1 |
Maximum case temperature | +65 °C |
Monitor output | Yes |
Supply voltage | +50 V DC |
Quiescent current | typ. 1 A |
PTT | switched to ground |
Current consumption | max. 40 A |
Input connector / impedance | SMA-female, 50 ohms |
Output connector / impedance | 7/16-female, 50 ohms |
Case | milled copper, silver- / nickel-plated |
Dimensions (mm) | 190 x 152 x 38.5 |
Weight | typ. 4850 g |
Block diagram
Application
Features
- LD MOSFET technology
- Monitor output for forward power detection (DC voltage)
- ON / OFF control with DC voltage
Applications
- Multichannel Multipoint Distribution Service (MMDS)
- Analog and digital transmission systems
Options
- Amplifier mounted on heat sink with fans
- Amplifier mounted on a liquid cool plate
- Amplifier installed into 19" rackmount case
- High linear version "Class A" on request
Accessories
- Recommended power supply: RSP 2400-48
- Recommended heat sink: SK 320 - 240 1)
- Recommended fan: 3 pieces FAN 80x80 HP 24 V 1)
- Recommended heat-conductive paste: Arctic Silver 5
- Circulator VAN 1053 A as a protection in case of bad antenna matching
We explicit point out that the recommended combination of heat sink and fan is not dimensioned for constant full output power of the power amplifier. The duty-cycle should not exceed 50% (1min transmitting / 1min receiving (WSJT)).
Attention: The recommended fans need a supply voltage of 24 ... 28 V DC.
As an alternative to our high power heat sinks we can offer a liquid cool plate.
You will find further information for dimensioning heat sinks under the rubric heat sinks.
1) Dimensioned for 25 °C ambient temperature
Important note
- Module does not contain coaxial relay!
- Specifications subject to change without notice -
