XIEGU XPA125 User manual
Power amplifier
Chongqing XieGu Technology Co.,Ltd
4th floor, building B, No. 12, Baoshi Road , Jiaoyitang, Tangxia town, Dongguan,
China.
Zip Code: 523723
XPA125
Operating Manual
XIEGU
~ 1 ~
①
②
④③
Important reminder:
Before operating the equipment, please read
our operating manual carefully and keep the
manual, so as not to lose.
Features:
lBoth the power amplification, but also
with antenna tuning function
lThe maximum output power can reach
125W
lAuto tuning function
lThe amplified frequency range of 0.5M -
50M
lharmonic suppression 39dB
lThe maximum output power can be
automatically constant (only for X108G
and X5105) [ALC control function]
Packing list:
Qty
① XPA125.. .. .. .. .. .. .. .. .... .. .. .. ..
1
② Power supply cable.. .. .. .. .. .. ..1
③ Communication line.. .. .. .. .. .. .1
④ Date line.. .. .. .. .. .. .. .. .. .. .. .. ..1
⑤ Service card.. .. .. .. .. .. .. .. .. .. .. 1
Security considerations:
Do not use equipment during a lightning storm.
Attention should be paid to preventmoisture.
Don't illegal operations!
Note RF high-voltage of antenna connector!
~ 2 ~
1 Parameters of XPA125
1.1 Basic parameters:
Amplified frequency range: 0.5~50MHz
Maximum output power: 125W
Maximum operating ambient temperature: 55℃
Whole gain: 13dB (+ 2dB)
Working voltage: DC 12~14.5V
Current parameter: position in readiness @Max 550mA
Transmit: 30A@Max
1.2 ATU parameters:
Tuning frequency range: 1.8M~30M
Maximum tuning range: 14 ~500
1.3 Product specifications：
Overall size: 260*150*100 (mm) [do not include knob, handle and other
prominent]
Weight：3.3 Kg
~ 3 ~
2 Equipment description
2.1 Front panel button definition：
A B E C D
A. PA function key，in the "BYPS" state, press the key, enter the "INUSE"
state; in the "INUSE" state, press the key to enter the "BYPS" state
B. Band set button, press the button can set the LPF band and working
mode
C. ATU function key, when the ATU display "BYPS" mode, press the
button to enter "INUSE" mode, ATU function to open
D. Switch machine button / remove the protection function key / force
tuning key，function description: press the key for a long time, for the
~ 4 ~
switch function；in TX mode, press the key quickly, you can force the
tuning; in protection mode, press the key quickly, you can remove the
protection
E. Screen display
2.2 Display information description
A B C D E
F G H I J K
A: input SWR display
B: supply voltage display
C: PA operating current
D：PA temperature display
E：output SWR display
~ 5 ~
F：Input power display，maximum input power is 8W
G：PA display ("BYPS" represents the current state in the through state,
without PA access, "INUSE" represents the current state in the
amplification, PA access)
H: When the status of the work shows RX, said the host into the
receiving mode, when the state of work shows TX, said the host into the
transmit mode
I：LPF band display，"XXm AUTO" representation band automatic
recognition mode（when the band output voltage of
host is consistent with form "Band voltage parameter" described in
paragraphs voltage，you can use this mode of operation）
"XXm MANUAL" means that the LPF working state is in manual
operation.
"XXm" means that the current band.( when the band output voltage of
host is NOT consistent with form “Band boltage parameter” described in
paragraphs voltage, you can use this mode of operation, you can
manually set the working band of the machine)
lThe form “Band voltage parameter”, please refer to page 8.
J: ATU working status display, "BYPS means no access to ATU", "INUSE"
means that the access to ATU(when the SWR is too large, it will
automatically be tuned.)
K: Output power display, maximum output power 150W
~ 6 ~
2.3 Protection interface description：
A B
A．Warning message number
B．Warning information
ERR:1 input power High
ERR:2 output power High
ERR:3 current High
ERR:4 temperature High
ERR:5 voltage High
ERR:6 Fan Stop working
ERR:7 Swr High
ERR:9 Atu Tun Fail
ERR:10 Gain ERR(The set band of XPA125 does not apply to the
current transmit frequency)
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Error handling method:
To stop the transmit, press the power key quickly to release the error,
rule out the error according to the relevant information.
2.4 Host back panel interface： G
A B C D E F
A. Output interface
B. Power interface
C. XPA125 safety socket (maximum current 30A)
D. Ground
E. Serial port communication interface (can be used for the firmware
upgrade, etc.)
F. TX signal input interface
G. ACC communication interface (see figure below)
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【ACC】ACC port
Pin Definitions
1：No function
2：PTT Signal Output
3：Wave Bands voltage output
4：ALC voltage output
5：No function
6：Ground
Band voltage parameter
3 Equipment operation instructions
Connect the power line, the communication line and the input signal
line, after the confirmation, turn on the XPA125.
3.1 PA functional instructions
1 Press the PA function button (press once again to close the PA
function)
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2 Screen display PA access
3 Press the transmit button of the host (such as X108G, X5105).
4 Output power can be observed (antenna to keep matching)
3.2 ATU function instructions (applicable to the case which antenna
and the band does not match)
1 Press the ATU enable button (press the button again to close the ATU
function)
2 Set your host (such as X108G) to CW mode, power set to 5W
3 Press the CW key, keep tuning until the tuning end
3.3 Band selection
1 Press the Band key (AUTO: automatic mode, according to the band
voltage automatic identification band, MANUA: manually set the band,
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