45W SSB Linear Power Amplifier CW FM HF Radio Transceiver Shortwave DIY Kit

High-Performance HF Linear Power Amplifier Module (3-30MHz) – 45W Output

Upgrade your amateur radio station with this versatile SSB & AM Linear Power Amplifier, engineered for DIY enthusiasts and radio hobbyists. Whether you are operating in CW, FM, or simply need a robust signal amplification stage, this module delivers exceptional performance with a noise floor so low it preserves signal integrity.

Why choose this amplifier?
With a staggering overall gain of over 40dB (10,000 times amplification) , this board turns a minimal 1-5mW input into a powerful 45W output (Max 57W). It is the perfect driver for transceivers, QRP projects, or boosting existing HF rigs.

Key Technical Specifications:

• Frequency Range: 3M – 30MHz (Full HF Channel)

• Input Power: 1-5mW

• Output Power: 45W (Nominal) / 57W (Peak)

• Voltage Requirement: DC 13.8V @ 10A (or higher)

• Impedance: 50 ohm (Adjustable between 10-200 ohm via tuning)

• Interfaces: Standard SMA (External thread hole)

Performance Data (Measured with adequate 200W+ heatsink):

• 3.500MHz: 54W

• 7.050MHz: 56W

• 14.270MHz: 55W

• 28.100MHz: 25W

Important Assembly Notes:

• DIY Kit: This product is shipped as component parts (PCB + components). Heatsink is NOT included. You must provide your own cooling solution (rated for ~200W dissipation) to run safely at maximum power.

• Low Frequency Performance: Due to inductance limitations, gain is slightly reduced between 3-5 MHz (output lower than at 7MHz).

• Safety Warning: Do not operate at full power without a large heatsink (200W+ rating). Operating without cooling is unsafe and may damage the unit.

Package Includes:
1 x SSB Linear Power Amplifier Board (Green PCB, Size: 60x100mm)
(Note: Heatsink not included, user assembly required)

Perfect for: SSB, AM Linear amplifiers, QRP projects, Base stations, and DIY radio experiments.