Tuning; Online / Bypass Switching; Combination Button; Automatic Shutdown - Mat-Tuner mAT-125E Instruction Manual

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MAT-TUNER
Manual: Regardless of whether the tuner is in automatic or semi-automatic mode, you can fine
tune the current LC tuning network by pressing the [CUP], [CDN], [LUP], and [LDN] key. After
the manual seat adjustment is completed, you can save the current configuration data in the
corresponding memory by pressing the [TUNE]+[LUP] combination key.

TUNING

The steps to start tuning are as follows:
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Set the radio to the FM, FSK or RTTY mode, to give the transceiver output a stable carrier
signal
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Reduce output power to 20 watts or less.
-
Press and hold the transceiver's [PTT] button, then press the [TUNE] button once on the front
panel of mAT-125E to start the automatic tuning.
-
Return to the previous mode and power level after tuning, the tuning process completion.
-
After tuning, the front panel's three lights are used to display the current VSWR.

ONLINE / BYPASS SWITCHING

There are two ways to switch the state of the tuner. Shortly press the [TUNE] button and the
[TUNE] +[CDN] combination button. If the 1.5 indicator flashes once, it means that the current
state is online, and if the 3.0 indicator flashes once, it means that the current state is offline.

COMBINATION BUTTON

A combination button is formed by [TUNE] and other buttons ([CDN], [LUP], [LDN]) to
perform part of the function operation. The combination button means that the [TUNE] button is
first pressed and held, the other button is pressed, and then they are released together.
[TUNE]+[CDN]: Online/Bypass switching. When the 1.5 light flashes, it indicates that the
current status is online. When the 3.0 light is flashing, it indicates that it is bypass.
[TUNE]+[LDN]: Automatic/semi-automatic mode switching. When the 1.5 light flashes, it
indicates that the current mode is automatic. When the 3.0 light is flashing, it indicates that it
is semi-automatic.
[TUNE]+[LUP]: The matching data of the tuning network is saved to the corresponding
memory.

AUTOMATIC SHUTDOWN

The tuner has automatic shutdown function for saving battery power. When the function is
activated, the tuner will turn off automatically if no button is pressed in about 3 minutes. Because
the tuner uses magnetic latching relays, the current tuning state will not be affected after the tuner
is turned off.
In shutdown state, press the [TUNE] button and then press [POWER] button to boot, you can
open or close the automatic shutdown function. When the 1.5 light blinks once, it indicates that
this function is activated. When the 3.0 light blinks once, this function is turned off.

FLASHING OF THE INDICATOR LIGHT WHEN STARTING UP

When the mAT-125E is powered on, the LED on the front panel flashes to indicate the
settings for current tuning
1.5: If flashing once, it indicates semi-automatic mode. If flashing twice, automatic.
2.0: If flashing once, it indicates automatic shutdown function is off. If not flashing,
indicating automatic shutdown function in on.
Instruction Manual
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