Operation From The Transceiver; Manual Fine-Tuning; Online/Bypass; Operation From Tuner - Mat-Tuner mAT-180H Instruction Manual

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MAT-TUNER

OPERATION FROM THE TRANSCEIVER

The operation of the mAT-180H tuner is very simple. It only needs a button on the front panel of
the transceiver. On an ICOM transceiver, this button may be [TUNER](most models),
[TUNER/CALL] (IC-7100, 706) or [TUNE] (IC-M710). On KENWOOD transceivers, it is
usually marked as [AT]. In the following description, we call it [TUNER].
Start a tuning process
The two brands of transceivers operate the same way, press and hold the [TUNER] button for
more than 2 seconds, and the transceiver will automatically start a tuning process. The following
operations are performed automatically by transceiver, without manual operation.
1. The radio will switch to CW mode, reduce power, and begin to transmit a carrier.
2. The tuner will begin a memory tuning cycle，If an acceptable SWR match is found in the
memory tuning cycle, the tuning cycle ends. Otherwise, the mAT-180H automatically
begins a full tuning cycle in an attempt to find a good match.
3. At the end of the tuning cycle, if the SWR is less than 2:1, the match data is stored in a
memory associated with the selected frequency. If SWR is greater than 2:1, the current
matching data will not be stored.
4. The transceiver restores the current mode and power level to the previous settings, and the
tuning ends.
5. After tuning is completed, when the tuner is working normally, the four indicator lights on
the front panel are used to display the current SWR.

Manual fine-tuning

At any time, users can fine-tune the current SWR through the four buttons ([CUP],[CDN],
[LUP],[LDN]) on the front panel of the tuner to get a lower SWR. After the manual fine-tuning,
press the SAVE button to manually save the current matching data in the memory corresponding
to the current frequency.

Online/Bypass

For some transceivers, the ONLINE/BYPASS state of the tuner can be switched by pressing the
[TUNER] button. If the tuner is online, the "TUNER" tag is displayed on the display screen of the
transceiver.

OPERATION FROM TUNER

Users can also start tuning through the TUNE button on the front panel of the mAT-180H. The
method is:
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Set the radio to the FM,FSK or RTTY mode, in order to make the transceiver output a stable
carrier signal
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Make the power reduced to 10 watts or less.
Press and hold the transceiver's [PTT] button, then press the [TUNE] button once on the front
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panel of mAT-180H to start the automatic tuning.
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Return to the previous mode and power level after tuning, the tuning process completion.

LEDS

There are four indicator LEDs on the front panel of mAT-180H. The PWR LED is the power light,
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