100W Low-Pass Filter Boards Number of Bands:3-Band You must change the Bluetooth

You must change the Bluetooth Data setting in the IC-705's menu to CIV Data (Echo Back) and connect the 'Hardrock Amp' in the Bluetooth menu

Use the two (red/black) pre-crimped 17" leads and the connector to make a short jumper

5mm TRRS jack for PTT Speaker/Mic

The HARDROCK-50 is FCC Type accepted under device ID RHAHR50

100W Low-Pass Filter Boards Number of Bands:3-Band You must change the BluetoothWhen added to the output of an amplifier, provides a spectrally pure signal for on the air operation. Three band design Same 5 x 5 cm form factor as the MRF 101 eval board for easy mounting. Seven band design Cover 160 80 60 40 30 20 17 15 12 10 6M ham bands More Info can be found here.