HARDROCK-50 ATU Kit

Additional functions:

60M band coverage. The ATU has a 60M lowpass filter which provides sufficient attenuation of harmonics for legal operation on the 60M band.
Wattmeter mode. The HR50 amp will function as a stand-alone wattmeter reading forward and reflected average power, forward peak power and SWR from 0.1 to 50W.
QRP mode. The amp keys up and provides ATU functions but does not engage the power amplifier stage allowing the ATU to function with the exciter barefoot.

Compatibility:

The ATU is compatible with the QSK mezzanine board for HR50’s with serial numbers above 1200. The ATU is not compatible with the QSK board that mounts on the bottom cover which was used with HR50’s with serial numbers below 1200. The ATU is not physically compatible with the driver amp, If your operation needs the driver amp we recommend integrating the driver into whatever is driving the HR50 or in its own enclosure.

Specifications:

ITEM	SPECIFICATION
Frequency Range	160, 80, 40, 30, 20, 17, 15, 12, 10, 6 meter Amateur Radio Bands
Input Power	50W maximum, >1W drive required for tuning
Tuning Range	10:1 nominal (lower on 160 and 6 meters)
DC Power	11-16 Volts, < 0.5 Amps
Network Type	L-network (series L, shunt C); C switchable to input or output
Inductance Range	0-7.5 uH in 128 steps
Capacitance Range	0-1300 pF in 128 steps
Memory	Non-volatile storage of up to 343 tuning solutions. 160 – 12 meters every 10 kHz (233 solutions) 10 meters, every 25 kHz (69 solutions) 6 meters, every 100 kHz (41 solutions)
Size	Does not affect the overall HR50 size.
Weight	Adds about 1 lb (0.45 kg) to the HR50 amplifier