HARDROCK-50 Rear Panel Kit 220 Filter Specs:

220 Filter Specs:

A valid Amateur Radio license is required for transmitting

Run it with a pair of VRF2933's at 60V for 5W in

25 dB less gain

HARDROCK-50 Rear Panel Kit 220 Filter Specs:Only for Rev F or Rev G amps ie. with S N 1400 and above HobbyPCB has redesigned the Hardrock 50 rear panel PCB. The new version is form, fit and functionally compatible with the previous versions but has the following enhancements: 1. Genuine FTDI chip for no driver needed install with every version of Windows since XP 2. Opto isolators on the USB lines to prevent ground loops with SDR's 3. 5V output on pin 1 protected with a resettable fuse to power