If you ever want to reach out further - power amplifiers for shortwave

The typical shortwave transceiver offers a transmission power of 100 or 200W. This is sufficient in many cases, but in some situations, more power may be needed for a reliable connection. This is especially true during periods of minimum solar activity, but also when participating in a contest or when achieving ambitious goals as a DXer.

Final amplifiers for short wave are available as tube amplifiers or with semiconductors. Tube amplifiers usually offer better efficiency, higher output power is easier to achieve. On the other hand, the units are usually larger and heavier and need to be better cooled. Semiconductor power amplifiers are perfect for the lower to medium power range, these amplifiers are generally more compact and lighter.

Tube amplifiers are available with manual or automatic tuning of the output circuit. Automatic tuning is comfortable but also very complex, that is why these PAs are more expensive. The tuning of the output also allows compensation of not so perfect SWR of the antenna. With semiconductor power amplifiers the output circuit is designed differently and requires antennas with very good SWR (or an external tuner for high power).

The typical power of a shortwave power amplifier is thus 500 to 1200W, but there are also models with up to 4000W output power. The limits are set by the respective law in the country where the plant is operated. WiMo offers a wide range of performance classes and models, from the most famous manufacturers worldwide.


Items 51-55 of 55

  1. OM-1002+ 2m-Transistor-PA 1000W
    OM-1002+ 2m-Transistor-PA 1000W

    With Freescale N-channel MOSFETs, remote controllable via Ethernet, color touch display

    No longer available

    incl. VAT, plus shipping €2,285.71
    In stock
    SKU OM-1002
  2. HLA300V-PLUS Transistor-PA (300W, 160-10m) w. fan
    HLA300V-PLUS Transistor-PA (300W, 160-10m) w. fan

    HF Amplifier 300W with fan - This PA was replaced by the model HLA300V-BLACK. The technical data are identical.

    No longer available

    incl. VAT, plus shipping €419.33
    In stock
  3. Blueline ECO750-2M Transistor-PA (750W, 2m)
    Blueline ECO750-2M Transistor-PA (750W, 2m)

    Compact and robust power amplifier with high efficiency at low waste heat, touch display, protection functions, 48 V (incl. power supply)

    No longer available

    incl. VAT, plus shipping €2,940.34
    In stock
    SKU ECO750-2M
  4. OM-3006+ Power Amplifier 3000W w. LAN interface
    OM-3006+ Power Amplifier 3000W w. LAN interface

    Linear power amplifier with ceramic tetrode GU87b and numerous protection functions

    No longer available

    incl. VAT, plus shipping €4,949.58
    In stock
    SKU OM-3006.LAN

Items 51-55 of 55



What is an amplifier in radio communication?
An amplifier in radio communication is a device that amplifies the electrical signal from a radio transmitter before it is transmitted to the antenna cable. This ensures that the signal can be transmitted with greater strength and over longer distances.
Why is an amplifier necessary?
An amplifier is necessary to amplify the signal from a radio transmitter in order to transmit it over greater distances. This is especially important when operating a large number of radio transmitters, as the signal will otherwise become weaker and transmission errors may occur.
How do I choose the right amplifier for my needs?
The choice of the right amplifier depends on your specific needs and requirements. It is important to determine the performance requirements of your radio transmitter and ensure that the selected amplifier is capable of delivering that performance. It is also important to consider other factors such as size, cost, and availability.