HARDROCK-50 HF Power Amplifier

Now shipping the fully assembled 10th Anniversary Addition with new black anodized enclosure.

Based on Jim Veatch's winning ARRL Home Brew Challenge II amplifier design, it's been improved and functionality has been expanded to include a new aluminum enclosure with built in pre-drilled and tapped heat sink, an LCD display, pre-soldered SMT components, computer control options, software upgradeable, easier to use connectors, and MORE. All software is open source and the unit hackable. The HARDROCK-50 is FCC Type accepted under device ID RHAHR50

Specifications

Bands: 160, 80, 40, 30, 20, 17, 15, 12, 10, 6 meter Ham Bands

Input power: 5 Watts

Output power: 40-50W on 160-10M, 30-35W on 6M

DC power: 13.8 VDC (nominal), 10 Amps (max)

Keying modes: COR, external PTT (positive or negative) and Standby

Metering: Forward and reflected power, Temperature, DC Voltage

Size: 4.25” W by 3.5” H by 7.5” D (not including switches and connectors)

Connections: RF In/Out – UHF (SO239); DC Power – Anderson Powerpoles; External PTT – RCA jack; USB serial control; DB9 Accessory Jack

Auto Band Select Support: Electraft KX3, Various SDRs via PowerSDR over USB, Kenwood CAT compatible devices over RS-232 TTL

Source Code Repository:http://code.google.com/p/hardrock-50/

Assembly Instructions/Wiki

Support Forum

QSK Mezzanine is no longer an option on the fully assembled HARDROCK-50.