XIEGU XPA125B, Инструкция по эксплуатации

Страница: 11 / 15

XIEGU COMMUNICATIONS
3.2.4 Combined use of power amp automatic antenna tuner
-
-
Press the [PA] button so the current state of the PA unit displays
[ON] .
Press the [ATU] button so the current state of the ATU
unit displays
[ON] .
-
-
Set the transceiver mode to CW, the output power to 5 W, and
press the CW key, switching on transmitting for 2 seconds..
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 XPA125B 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 XPA125B can be used independently of each other.
You can therefore use the XPA125B 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 XPA125B incorporates a variety of intelligent protection functions to ensure
as far as possible the safety of the equipment in daily use. When the XPA125B
enters an abnormal state, it will immediately enter protection mode and switch
to bypass mode.
Release the PTT button. Protection will be disabled and the XPA125B will return
to the receiving state.
11
When high SWR, high current, high voltage, over temperature and other
error states are detected, the XPA125B’s internal sensors will trigger the
protection function beyond a certain threshold. The threshold of each
sensor is as follows:
-
High SWR
：
≥3.0
-
High current
：
≥25A
-
High voltage
：
≥15V DC
-
Over temperature
：
≥100 ℃