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Xiegu XPA125B 100W Power Amplifier Auto Antenna Tuner Large Display Screen

  • Based on 16 reviews
Condition: New
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Availability: 11 left in stock
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Arrives Monday, Feb 24
Order within 21 hours and 49 minutes
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Features

  • Built-in Automatic Antenna Tuner: The automatic antenna tuner and power amplifier unit of XPA125B can be used independently of each other as either an automatic antenna tuner or a separate power amplifier. The tuner handles 14-500 ohm loads in the HF bands and 6-meter band.
  • 100W Power Output: The XPA-125B is the perfect amplifier for QRP radios or SDR transceivers with low power consumption (like a 5-watt transmitter) when 100-watt output is needed. Its maximum power output is 125 watts.
  • Safty & Protection: The XPA125B has a variety of intelligent protection circuits to ensure the safety of the amplifier and connected transceiver. When abnormal operating conditions appear like SWR is too high, too much drive power, or too high temperature, the amplifier enters bypass mode and displays an alarm message.
  • New Enhanced Version: After improving its shape and size from XPA125, it is smaller than the old version and can be worn on a bracelet like a small bag.
  • Large Screen Display: The 2.7 inch large backlit LCD display shows input/output power, SWR, Voltage, Current, Temperature, amplifier status as well as warning messages making the operation of this modern amplifier simple and also user friendly.

Brand: Xiegu


Connectivity Technology: HDMI


Special Feature: Digital Display


Compatible Devices: Smartphone, Speaker


Total HDMI Ports: 4


Connector Type: HDMI


Audio Output Mode: Stereo


Output Power: 125 Watts


Wattage: 3E+1


Number of Channels: 1


Package Dimensions: 13.82 x 8.82 x 7.68 inches


Item Weight: 8.4 pounds


Item model number: 9


Date First Available: December 13, 2023


Manufacturer: Xiegu


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Feb 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Really nice Amp
Works very well. Only used it with my Xiegu X-6100 so far, but .5 of a watt gets me 85+ watts out. Since I have 4 Xiegu radios I'm sure it will get plenty of use. I run QRP most of the time but in those times when a little more power is needed, I'll have it. Hats off to Xiegu and Radioddity. On a side note....my entire shack now is all Xiegu. ... show more
Reviewed in the United States on December 21, 2024 by Terry C. Terry C.

  • Piece of junk. 2 defective in a row.
Wish I could write a review of this amp. Hoping to get something set up for Christmas. Both units come on but do not amplify the signal, Nor do they even register an input. But hey, At least the atu worked on the second one! Maxed out credit card to get a replacement before refund of the first. Broke and miserable. Thanks Xiegu! ... show more
Reviewed in the United States on December 19, 2024 by mr s w cuthbert

  • Good when I was finally able to find a consistent tuning process.
Check out the YouTube video from TRX Lab entitled "#270 QRP PA Xiegu XPA-125B, defect ATU?" There he describes a method to consistently allow the amplifier's built-in tuner to tune the attached antenna. Bear in my that my barefoot Xiegu G90 never had a tuning problem with the same antenna, but the XPA125B complained of high SWR on all HF bands. When the steps in this video are followed, it results in a consistent tuning procedure on every 10-160m band! Here are the basic steps. 1. Turn the PA function off and the Auto ATU on. 2. Change the radio's modulation to AM or FM (CW apparently cannot key from its mic PTT). 3. Increase the radio's power level to 5W. 4. Key the radio and simultaneously press and hold the ATU button for 2 secs to perform an autotune. Note a final acceptable SWR value. 5. Decrease the radio's RF output power to 1W and turn on the PA function on the amplifier. 6. Rekey the radio now in AM or FM and observe the PA output of 80-100W (depending on the band). 7. Return the radio's modulation to your normal operating modulation scheme. Too bad the manual is horrible. The steps to tune are convoluted. Maybe Radioditty can rewrite the manual like they did with the G90 to actually make sense. This would probably prevent a lot of unnecessary returns of what is probably the best HF 100W amp/ATU value on the market! ... show more
Reviewed in the United States on April 2, 2024 by Michael L.

  • Awesome lil low drive amp!
Can hit this guy with .2-.5w and see 80-85w pep out! So 2-3w or that 5w qrp rig will excite this guy to full power. If swr is ideal and tuner is at a minimal reflect, also depending on band of operation, an easy 100w+ is obtainable with this unit! Up to 125w pep shown on display and is accurate with swr, band, tuner, amp, voltage. Input swr and output swr with watts simultaneously displayed! Great tuner with what we believe is a 10:1 capacity! Not many do this! Works on 160m fine. 43ft worked great but only needs the 4:1 to work. Value for money and functionality! Just an awesome lil amp! One thing I’d add is that silent but turbo muffin fan or two!!! ;) cheers 73 w8rbj ... show more
Reviewed in the United States on September 23, 2024 by Gerald S.

  • Worth the money!
Great addition to g90. Works great!
Reviewed in the United States on November 5, 2024 by Christopher Bullard

  • Tuner isn't optimal
I got this to use with my IC-705. First, it's so heavy I'd never use it for portable operation, I'd just take my old IC7000 (much lighter than the 705, amp, etc.). I got the amp cable off of Ebay and it works for the amp only, but takes up the accessory jack so as far as I can tell is I can't link the tuner to my 705 when I use the amp. Tuner is limited in ability. I used my home QTH dipoles and they appeared to tune ok (1.0 - 1.3), but with the amp on went up and I got the warning message. My LDG PRO tuners work fine on these but they'll tune a 10:1 SWR. I did tune (my pre-tuned) 10M solarcon 2000 and did transmit with no issues. Note that my QRP MAT-Tuner tunes the dipoles just fine on 5 or 10w. Display is decent, comes with a handle, but I'd hardly consider this nice for portability due to the weight factor. ... show more
Reviewed in the United States on August 30, 2024 by John O

  • Didn't Work
I think it would been great if it worked. Sent back.
Reviewed in the United States on July 11, 2024 by Clara D. Hunter

  • A+
A+
Reviewed in the United States on April 4, 2024 by Robert B.

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