Multichannel Scanning Energy Detector
The Arf is a specialized version similar to the aardvark in construction, but much smaller. It scans 10 channels, can accept an external user filter, and has an onboard 64Mbit magnetic memory for logging. It accepts a GPS and wide range external DC power. It has no LCD/keypad interface, but is intended for remote control (via USB) and/or autonomous preprogrammed operation.