1200W HF/6m LDMOS Linear Amplifier Board V2.0 (1.8–55 MHz)
High-efficiency linear amplifier board for HF and 6m bands.
Designed for 2×MRF300AN & 2×MRF300BN LDMOS devices.
Also compatible with 2×MHT1803A & 2×MHT1803B as alternatives.
Main Features
RF Input Power: 0–12 W max
RF Output Power: up to 1200 W
Frequency Range: 1.8–55 MHz
Supply Voltage: 48–53.5 V DC @ 35 A
Efficiency: up to 80%
Class AB push-pull design
Suitable for all modes: SSB, CW, FM, AM, Digital, etc.
Amplifier board is 2x 600W combined in phase for up to 1200W max output power.
Redundant protection: If one of the combined amplifiers fails, the remaining one is protected via >40 dB input isolation
This amplifier incorporates a high-power, low-loss, wideband transmission-line (TLT) transformer, ensuring excellent efficiency across the HF and 6-meter bands.
It also features a temperature-regulated bias circuit for stable operation under varying thermal conditions.
TVS diodes installed for enhancing protection against esd ,RF spikes and transient overload conditions.
Board Dimensions
Main board: 239 × 200 mm
Notes:
LDMOS transistors not included.
Board is delivered fully assembled as shown in photos.
Parts color may vary depending on availability.
