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XIEGU  COMMUNICATIONS 

2  Equipment description 

2.1  Front panel layout: 

 

Power 

key 

When  XPA125

B

  is  turned  on,  press  this  button  and  hold  for  2  seconds, 

XPA125B will shut down. 
When  XPA125B  is  turned  off,  press  this  button  and  hold  for  2  seconds, 
XPA125B will turn on. 

 

ATU 

function key 

Via  this  button you  can  access  the  automatic antenna tuning function. 

 

BAND 

selection key 

Using this button you can select between manual band switching or 
automatic band switching. 
In manual band switching mode, the XPA125B will change bands in the 
following order: 
160m

80m

60m

40m

30m

20m

17m

15m

12m

10m

6m 

 

PA 

key 

Used to switch the power amplifier into or out of circuit. 

Summary of Contents for XPA125B

Page 1: ...V 1 00 0 XIEGU 100 W Solid State Linear Power Amplifier XPA125B Instruction Manual Copyright 2010 2018 Xiegu Communications...

Page 2: ...F output power of Do not expose the unit to moisture 100 Watts Auto tuning function Wide frequencyrangeof 0 5 54 MHz Harmonic suppression of 50 dB The maximum output power is automatically constant cu...

Page 3: ...bient temperature 55 Gain 13dB 1dB Spurious suppression 50dB Supply voltage 12 15 V DC Current draw maximum output Standby 700 mA Max Transmit 30A Max 1 2 ATU Tuning frequency range 1 8 30 MHz 50 54 M...

Page 4: ...or 2 seconds XPA125B will turn on ATU function key Via this button you can access the automatic antenna tuning function BAND selection key Using this button you can select between manual band switchin...

Page 5: ...tective plate 2 2 Rear panel layout DC IN Power supply socket The XPA125B requires a 12 15 V DC supply 7 ANT Connector The ANT socket is connected to the antenna the connector model is SL16 K 8 FUSE H...

Page 6: ...erface is for XPA125B firmware updates and connection to a PC 2 3 Display interface layout Input SWR value Displays the SWR value of the XPA125B input Operating voltage Displays the value of DC voltag...

Page 7: ...ng band status Displays the current working band and whether automatic or manual mode is selected The figure above shows the 6 meter band 9 Output power value Displays the output power being delivered...

Page 8: ...CC ports of the two units Both connectors are the same so either end of the cable can be connected to either socket Use suitable RF coaxial cable to connect the X108G ANT port to the XPA125B TRX port...

Page 9: ...e corresponding band voltage is needed XPA125B band control voltage information is as follows BAND LEVEL mV 230 460 690 920 BAND LEVEL mV 1380 1610 1840 2070 BAND 50 0 MHz LEVEL mV 2530 1 8 MHz 3 8 MH...

Page 10: ...band Manual switching of frequency bands follows this order 160m 80m 60m 40m 30m 20m 17m 15m 12m 10m 6m 3 2 3 Using the automatic antenna tuner unit ATU PA unit is set to OFF state Press the ATU butto...

Page 11: ...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 Yo...

Page 12: ...S Warning When the XPA125B current draw is too high more than 25A or a short circuit occurs the fuse on the rear panel may blow The unit will then no longer turn on Please check the status of the fuse...

Page 13: ...the shipping both ways After two weeks XieGu will pay only for return shipping If the product is not covered under warranty the customer pays for shipping both ways plus the cost of the repair 2 Warra...

Page 14: ...s are covered by the warranty A Damage caused by improper use by the user B Damage caused by an accident C Damage due to incorrect testing maintenance debugging or other changes D Damage is not caused...

Page 15: ...XIEGU COMMUNICATIONS www cqxiegu com...

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