50W HF/6M NEPTUNE RF Power Amplifier Icom-705 Elecraft KX3, auto band switching

  

This is custom designed HF/6M solid state ham radio amplifier, called NEPTUNE, 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.

Nominal power supply - 13.5v. Idle current - 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. 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. Band switching - automatic, RF sense.

Case size - 187x120x80 mm. Weight - 1.2 kg. We are open and active, regadless of the war. This is our way of supporting Ukraine's economy. Postal Service is fully operational where we are. After package leaves Ukraine you can track it through your local Postal web site.