Transceiver Settings; Operation From The Transceiver; Starting The Tuning Process; Manual Fine Tuning - Mat-Tuner mAT-180H Instruction Manual

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MAT-TUNER

TRANSCEIVER SETTINGS

Some transceivers can directly use external tuners without any menu set up. If you are not
sure whether your transceiver needs a menu setup to find an external antenna tuner, read the
section on external tuners in the operation manual.
Following is an example of ICOM IC-718 to illustrate the menu settings:
IC-718：
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Hold down [PWR] for 1 second to turn power OFF.
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While pushing and holding [SET], push [PWR] to turn ON the power.
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Push [UP] or [DN] one or more times to select [TUNER].
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Rotate the main dial to select "4." AH-4TUNER is selected.
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Hold down [PWR] for 1 second to turn power OFF.
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Push [PWR] to turn ON the power.

OPERATION FROM THE TRANSCEIVER

The operation of the mAT-180H tuner is simple. One button on the front panel of the
transceiver. For 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].

STARTING THE 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 tuning. The following operations
are performed automatically by the 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

Users can fine-tune the current SWR through the four buttons ([CUP],[CDN], [LUP],[LDN])
on the front panel of the tuner to achieve lower SWR. After 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.
Instruction Manual
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