XIEGU COMMUNICATIONS
11
3.2.4
Combined use of power amp automatic antenna tuner
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Press the [PA] button so the current state of the PA unit displays
[INUSE].
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Press the [ATU] button so the current state of the ATU unit displays
[INUSE].
-
Set the transceiver mode to CW, the output power to 5 W, and
press the CW key.
-
If the current SWR value is more than 3.0, the ATU unit will start
tuning automatically. At this time the PA unit will be disabled.
-
If the current SWR value is less than 3.0, the ATU unit will start
tuning automatically, and the PA unit will be activated.
-
If the current SWR value is more than 3.0, and automatic tuning
fails, the XPA125 will automatically switch to bypass mode
and display this information on the screen.
3.2.5
Flexible configuration of PA unit and ATU unit
The ATU unit and PA unit of XPA125 can be used independently of each other.
You can therefore use the XPA125 as either an automatic antenna tuner or a
separate power amplifier. You can also bypass both units, and your transceiver
will then be connected directly to the antenna.
3.2.6
Protection and warning
The XPA125 incorporates a variety of intelligent protection functions to ensure
as far as possible the safety of the equipment in daily use. When the XPA125
enters an abnormal state, it will immediately enter protection mode and switch
to bypass mode.
3.2.7 Remove protection and warning
Release the PTT button. Protection will be disabled and the XPA125 will return
to the receiving state.
Warning messages are as follows:
SWRI too high! (Input value of
SWR is high)
Idd too high! (Operating
current is too high)
PIN too high! (High input
power)
Vdd too high! (Input voltage is
too high)
SWRO too high! (Output value of
SWR is high)
Wrong band!
(Filter error)
PO too high!
(High output
power)
Gain too low!
Temp too high! (Operating
temperature is too high)
Efficiency too low!