Improve your HAM radio experience with our advanced wideband amplifier. This high-performance amplifier utilizes a single very rugged LDMOS push-pull transistor, delivering up to 1250W peak power. Designed for superior performance, it requires an excellent heatsink and cooling fan.

Technical Specifications

• Shipping Weight: 0.9 Kg
• Frequency Range: 144-146 MHz
• Voltage: 50V @ 35A
• Impedance: Input/Output 50 ohms
• Output Power: 1200-1250W with ~10W input
• Gain: ~22.5 dB
• Class: B push-pull
• Mode of operation; CW, FM by default, SSB and linear modes with bias adjusted higher
• Size: 4.0 x 2.25 x 1.5 inches (LxWxH)
• Base: Standard 1/4 inch copper
• Integration: Bias disable pads for automatic VSWR protection systems

IMPORTANT:

– Ensure proper shielding between the final stage and audio stage with exciter. Install a good feed-through capacitor  on the +50V supply wiring to prevent RF interference.
– Excessive drive levels can damage the amplifier. Ensure your equipment includes appropriate protection circuits.
– Amplifier efficiency is dependent on supply voltage. For maximum efficiency, adjust the supply according to the desired output power, typically at 1-3 dB gain compression.
– RF pallets are sensitive. If you lack sufficient experience, consider a fully finished product. Misuse can lead to damage, and no warranty is provided. Every pallet is tested and fully operational upon dispatch.
– Ensure proper airflow across the pallet to prevent overheating.  

Warnings and Notes:

– Do not exceed maximum supply voltage for your pallet to avoid damage.
– Use PTFE coaxial cable  for RF input (RG178) and output (RG142). Keep leads very short. 
– A heatsink is essential. Ensure proper airflow across the pallet to prevent overheating.