50W HF/50MHz External Power Amplifier (10 Band), auto band switching

Description

This is custom designed HF/6M solid state ham radio amplifier with automatically switched LPF onboard, 4 x RD16HHF1 based, intended for field or mobile operations or as driver for LDMOS amplifier. This amplifier produced from high quality ORIGINAL parts, such as Mitsubishi transistors and AMIDON cores. PA PCB mounted on metal heatsink for good heat dissipation.  PA has 2.5 dB flatness of frequency response and PA can operate 24x7x365 in any digital modes without extra cooling.

Specifications

• Nominal power supply – 13.5v
• Nominal current is – 7A
• Maximum current is – 10A
• Idle current is – 0.8A (in TX mode without RF)
• Input frequency – 1.8, 3.5, 7, 10, 14, 18, 24, 28, 50 MHz
• Input and output impedance – 50 Ohm
• Input SWR – <1.5 for all bands
• Nominal input power – 34dBm (2.5W)
• Maximum input power – 37dBm (5W)
• Nominal output power – 47dBm (50W CW)
• Maximum output power – 48.5dBm (65W CW)
• Measured IMD3 performance is -32dB for nominal power
• External PTT signal – GND active,  <1 mA sink current, no relay required
• Band switching – automatic, RF sense
• Case size – 187x120x80 mm
• Weight – 1.2 kg

eHam reviews see HERE