Automatic Antenna Tuner
mAT-705 V2.0
User Instructions
Thank you for your purchase of the model mAT-705
automatic antenna tuner, designed specifically for ICOM
IC-705 HF/VHF/UHF transceiver. The mAT-705 tuner is
powered by two built-in lithium batteries, can be charged by
a USB power adapter. Magnetic latching relays are used
inside the tuner to save energy.
The mAT-705 automatic antenna tuner responds to control
commands from the IC-705 transceiver, providing micropro-
cessor-based impedance matching on the 160 through 6
meter amateur bands. On the HF and 50 MHz bands the
impedance matching range is from 5Ω to 1500Ω.
The tuner comes with control cable. Both ends of the control
cable are standard 3.5mm plugs. One plug is connected to
the TUNER socket of the transmitter, and the other plug is
connected to the CON socket of the tuner. The transceiver
controls the tuner through this cable for automatic tuning. An
RF cable mAT-RC1 that connects the IC-705 and the tuner is
sold as an accessory item. mAT-RC1 is a common coaxial
cable with male BNC plugs at both ends.
Front Panel
PWR/CHARGE
: Indicate charging and power indicator.
ONLINE/TUNING
: Indicate the tuner ON or OFF status
and indicate the tuning status.
CHARGE
: Type-C charging interface
