XIEGU
Power amplifier
XPA125
Operating Manual
Chongqing XieGu Technology Co.,Ltd
4th floor, building B, No. 12, Baoshi Road , Jiaoyitang, Tangxia town, Dongguan,
China.
Zip Code: 523723
1
Important reminder:
Security considerations:
Before operating the equipment, please read
our operating manual carefully and keep the
manual, so as not to lose.
Features:
l Both the power amplification, but also
with antenna tuning function
l The maximum output power can reach
125W
l Auto tuning function
l The amplified frequency range of 0.5M -
50M
l harmonic suppression 39dB
l The maximum output power can be
automatically constant (only for X108G
Do not use equipment during a lightning storm.
Attention should be paid to prevent moisture.
Don't illegal operations!
Note RF high-voltage of antenna connector!
and X5105) [ALC control function]
Packing list:
Qty
① XPA125.. .. .. .. .. .. .. .. .... .. .. .. ..
② Power supply cable.. .. .. .. .. .. ..1
③ Communication line.. .. .. .. .. .. .1
①
④ Date line.. .. .. .. .. .. .. .. .. .. .. .. ..1
⑤ Service card.. .. .. .. .. .. .. .. .. .. .. 1
②
④ ③
~ 1 ~
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
~ 2 ~
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
~ 3 ~
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
~ 4 ~
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)
l The 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
~ 5 ~
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)
~ 6 ~
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)
~ 7 ~
【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)
~ 8 ~
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,
~ 9 ~
this menu using cycle mode).
3.4 Warning release
1 Release the host's send button
2 Observe the warning content (according to the actual situation
to deal with related issues)
3 Press the warning release button (the power button) to remove
the warning. For example:
~ 10 ~
4 General troubleshooting
Equipment goes up
The following points out the troubleshooting for the general problem, if
you still can not solve the problem, please do repair, please do not
disassemble the machine, or you will lose the warranty.
Fault description
Unable to turn on
your X108G
Not receive
Not transmit
Possible reasons Resolvent
No connection power cord Connecting power cable
Power is not turned on Turn on the power
Power cable connection is bad Replace or repair power cord
Power supply reverse connection Properly connected power supply
Antenna is not connected Properly connected antenna
Antenna failure Replace or repair antenna
No communication
Other circumstances need repair
Antenna is not connected Properly connected antenna
Low power supply voltage Please replace the power supply
Lack of power Please replace the power supply
Antenna SWR value is too large Please check the antenna
Work mode is not correct
Other circumstances need repair
Please confirm the propagation
characteristics of the current wave
Please choose the right mode of
work
Screen no display
in smoke, smell
microphone operat
ion exception
No connection power cord Connecting power cable
Power is not turned on Turn on the power
Other circumstances need repair
need repair
PTT interface connection exception Re-connect microphone
Please confirm that the current
frequency is not in the forbidden
band
Button no reaction Re-connect microphone
Other circumstances need repair
Reset frequency
~ 11 ~
After sales service policy
1. Warranty clause:
When buyer from the point of sale who has obtained the authorization of
XIEGU to buy our products, within two weeks after purchase, if host,
multifunctional microphone, shell structure of the host, the USB data lines,
power lines appear the performance fault of non-human damage, the buyer
can be in the original place of purchase to enjoy a free replacement service.
The transport costs borne by the seller.
When buyer from the point of sale who has obtained the authorization of
XIEGU to buy our products, in more than two weeks and within a year, if host,
multifunctional microphone, shell structure of the host, the USB data lines,
power lines appear the performance fault of non-human damage, the buyer
have the right to enjoy free repair service. The transportation cost of the
product from the buyer to the original place of purchase is to be borne by the
buyer.
When buyer from the point of sale who has obtained the authorization of
XIEGU to buy our products, beyond one year later, if host, multifunctional
microphone, shell structure of the host, the USB data lines, power lines appear
the performance fault of non-human damage, the buyer can apply for
maintenance services in the original place of purchase. The maintenance cost
and the transportation cost will be borne by the buyer.
The warranty period is calculated from the date of the purchase of the
product.
2. Warranty limitation clause:
The following restrictions on the warranty services, applicable to the host
and all accessories，meet one of the following circumstances, we will cancel
the warranty:
A． Without permission and authorization, modification, removal,
maintenance of the host’s chip;
B． Change product’s embedded software;
C． Immersed in liquid, broken, or man-made external damage;
D． Over the warranty period (including additional warranty period);
E． Product’s serial number, after sales service card serial number does not
correspond, missing, is torn or blurred;
F． Products belong to seller who did not obtain the authorization of XIEGU.
Meet one of the following conditions, it does not belong to the scope of
the warranty:
A. Damage caused by improper use of the user；
B. The damage caused by an accident；
C. Damage due to incorrect testing, maintenance, debugging, or other
~ 12 ~
changes；
D. The damage is not caused by the material or the quality of production；
E. Due to improper use, causing damage to the shell or other external
components；
F. Use incorrect connection or match Kit.
Contact us: service@cqxiegu.com
~ 13 ~
XIEGU
www.cqxiegu.com
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