Tuning Process, Yaesu Ft-817/818; Tuning Process, Other Transceivers; Batteries And Tuning; Transport - Mat-Tuner mAT-10 Instruction Manual

TUNING PROCESS, YAESU FT-817/818

Press and hold the multi-function button until the "Tuning" light is turned on and then release
it. The tuner will automatically control the transceiver to complete the following operations,
without manual operation by the user.
a. The tuner sends control commands to FT-817/818 and the transmitter will be activated and
a carrier signal will be sent out.
b. The tuner asks the current frequency data of FT-817/818 and reads the matching data from
its own memory to match the capacitance and inductance in the LC circuit. Then the current SWR
is detected. If the SWR is not higher than 1.5:1, the tuning is completed and the following step d
is executed, otherwise step c is executed.
c. Start a complete tuning cycle. LC circuit in the mAT-10 will be selected/ adjusted for
optimum SWR.
d. When tuning is complete, transmission will cease, and you will be ready for operation.
The tuner stores the configuration data in the memory corresponding to the current frequency.
The data in the memory can still be stored effectively after shutdown until overwritten by data the
next time the tuner is used on the same frequency.

TUNING PROCESS, OTHER TRANSCEIVERS

For other transceivers, the tuning steps are different, requiring the user to complete the process
manually as follows:
a. Set the transceiver to the FM, FSK or RTTY mode, in order to make the transceiver output
a stable carrier signal.
b. Reduce power output to 5 watts or less.
c. Press and hold the PTT key of the transceiver, then press and hold the multi-function
button of the tuner until the "Tuning" indicator lights up. Release the multi-function button.
Continue to hold down the PTT of the transceiver until the tuning indicator of the tuner goes out
and the tuning process ends.
d. Restore mode and power level of the transceiver to desired settings. The tuning process is
over, The front panel's three lights are used to display the current SWR.
OPERATION NOTE
During the tuning process of the mAT-10 tuner, high SWR can be detected by the transmitter.
There are a few transmitters that stop transmitting when SWR is high and cause the tuner to be
unable to tune due to zero power output.

BATTERIES AND TUNING

Two 10440 lithium batteries installed inside mAT-10 provide power for the tuner. Tuner can
only be charged with included 8.4 vD
essentially zero power when in standby. If batteries need to be replaced, please use the same type
of batteries.
The indicator on the charger shows the charging process. The yellow light indicates charging is
in progress, and the green indicator indicates charging is completed.
Before the first use or after the battery is replaced, the tuner must be charged by the charger to
activate the internal protection circuit before it can be used normally.

TRANSPORT

Because there are two lithium batteries installed inside the tuner, Please comply with local
laws when transporting.
charger. The mAT-10 uses little power while tuning, and
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Instruction Manual