Xiegu G90

Xiegu G90 firmware

Xiegu · G90 · G90 · SDR transceiver

Latest firmware for the Xiegu G90 is v1.81 (August 25, 2025).

Specifications

G90 specifications

Type
Amateur HF transceiver
Frequency range
TX: 10-160 m / RX: 0.5-30 MHz
Modes
AM / SSB / CW (FM with optional GSOC controller)
Show the full specification

General

Mode
AM / SSB / CW (FM with optional GSOC controller)
Type
Amateur HF transceiver
Weight
1.63 Kg (3.59 lb), without handles
Power supply
9-15 VDC (2-pin connector)
Tuning steps
Minimum 10 Hz
Other features
24-bit SDR. 1.8" color TFT. Spectrum and waterfall display. Keyer. CI-V CAT control. I/Q output. Detachable display head. CW decoder. VOX. SWR plotter. Wide range ATU. Multi-function microphone.
Frequency range
TX: 10-160 m RX: 0.5-30 MHz
Dimensions (W*H*D)
120*45*210 mm (4.72*1.77*8.27"), without handles
Frequency stability
±1 ppm (After 60 minutes warmup)
Repeater shift / offset
No dedicated. Use VFO A/B split instead. Requires optional GSOC for FM/repeater use
Channels / memory management
63 regular
Antenna impedance / connector
50 ohm / SO-239
Current drain / power consumption
RX: Max 650 mA (500 mA according to manual) TX: Max 8 A

Miscellaneous

Manufactured
China, 2018-202x (Discontinued)

Receiver Section

Selectivity
50-5500 Hz adjustable
Sensitivity
AM (10 dB S/N) 0.5-2 MHz: 10 uV 2-30 MHz: 2 uV FM (12 dB SINAD), with optional GSOC controller 1.8-2 MHz: 0.35 uV 2-30 MHz: 0.25 uV SSB/CW (10 dB S/N) 1.8-2 MHz: 0.35 uV 2-30 MHz: 0.25 uV
Image rejection
70 dB
Receiver system
Down mix 24-bit SDR. Cirrus Logic CS4272 @ 48 KHz
AF output power / speaker
500 mW at 10% distortion / 8 ohm
External speaker connector
3.5 mm, 4-16 ohm

Transmitter Section

RF output power
Pwr AM:5 W (Carrier) FM:20 W (With GSOC option) SSB (PEP):20 W CW:20 W
Modulation system
Digitally generated
Spurious emissions
Better than -50 dB
Microphone input level
? mV
Max FM deviation (Factory set)
±? KHz (With GSOC option)
Microphone impedance / connector
200-10000 ohm (600 ohm nominal) / 8-pin (Modular)

Changelog

G90 firmware changelog

  1. v1.80 v1.81 Fixed NFM reception and antenna tuning; adjusted ALC display.

  2. v1.71 v1.80 Adds digital mode software compatibility, fixes waterfall display freeze, improves receive audio

  3. v1.6 v1.71 Spectrum display updates, direct filter adjustment via knob, and enhanced receiver with new RF Gain plus AGC improvements.

  4. v1.6 first tracked Adds automatic CW decoding, new signal and power meter, improved volume control

Firmware history

All versions below were published by Xiegu on xiegu.eu and xiegu.com. Third-party and modified firmware is never listed.

  1. Version 1.81 Latest Released Aug 25, 2025 First seen Sep 6, 2026

    Fixed NFM reception and antenna tuning; adjusted ALC display. — summary by updatemystuff.com

    Source: xiegu.eu

    Show release notes

    This is the v1.81 Firmware for Xiegu G90 with both Ma​in Unit and Display unit firmware files. Fixes & Improvements

    Head Unit Changes

    Fixed a bug where a small black box appeared in the upper-right corner of the TX ERROR prompt page.

    Fixed a bug where automatic antenna tuning would get stuck in SLPT mode.

    Main Unit Changes: Fixed a bug where NFM had no receive (RX) audio.

    Adjusted​ the display method of the ALC value: – Range: 0-100 – Meaning: Indicates MIC or LINE IN audio level.

    A higher value represents a stronger input signal.

    When operating in DIGI mode, adjust the LINE IN gain or PC volume to ensure the ALC value remains ≤ 50 for optimal linearity.

    Release notes & download
  2. Version 1.80 Released May 29, 2025 First seen Sep 12, 2026

    Adds digital mode software compatibility, fixes waterfall display freeze, improves receive audio — summary by updatemystuff.com

    Source: xiegu.eu

    Show release notes

    Good news for Xiegu G90 owners!

    The new firmwa​re update v1.80 for the main unit (dated 2025-04-22) adds advanced digital mode support and audio improvements that make this compact HF transceiver even more capable. ?

    What’s New in v1.80: ✅ Better JTDX/WSJT-X Compatibility CI-V commands 0x25 and 0x26 added for reliable integration with digital mode software.

    Refer to: Xiegu CI-V Reference & WSJT-X Setup Guide ?

    Radio ID Read Support New CI-V commands 0x1D ​and 0x19 allow connected software to identify the radio model. ?

    FFT Display Freeze Fixed Resolves an intermittent bug affecting the waterfall/spectrum display. ?

    AGC Algorithm Optimized Lower background noise and improved receive audio for a smoother operating experience.

    Download from Xiegu.eu/downloads to update your G90.

    Release notes & download
  3. Version 1.71 Released Nov 3, 2019 First seen Sep 12, 2026

    Spectrum display updates, direct filter adjustment via knob, and enhanced receiver with new RF Gain plus AGC improvements. — summary by updatemystuff.com

    Source: xiegu.eu

    Show release notes

    Xiegu has recently released new firmware upgrade for both its G90 and X5105 transceivers.

    G90 has recently got many updates to the spectrum and waterfall display, new functions have been implemented and several functions have been optimised like the filte​r adjustments.

    Filter width and passband center adjustments are now available directly by pressing the user knob and scroll between functions (see video).

    With the addition of an RF Gain adjustment in combination with improved AGC the G90 receiver is now top notch.

    Download version 1.71 of the G90 firmware and find out for yourself.

    X5105 got a big facelift making the displayed information more clear, but also many improvements to functionality and the menu system where made.

    Several of the system menu settings like RF Gain, SSB microphone gain and, where moved to the user menu for more convenient adjustments.

    Among other things an equaliser was​ added to allow for personalisation of received audio.

    Improvements were aslo made to CW transmission.

    X5105 firmware upgrade version 3.00 is available for download.

    All Xiegu firmware are available in our download section .

    Release notes & download
  4. Version 1.6 Released Mar 28, 2019 First seen Sep 12, 2026

    Adds automatic CW decoding, new signal and power meter, improved volume control — summary by updatemystuff.com

    Source: xiegu.eu

    Show release notes

    The great Xiegu G90 HF 20 watt S​DR transceiver gets even better with the latest firmware upgrade.

    From now version 1.6 of the free firmware upgrade is available, and it has some great new features and many fixes including; Automatic CW decoding display CW zero beat indicator Modified SPLIT logic Improved filter display New Signal and power meter Improved volume control with lower minimum level Severa​l bug fixes Download form our download section and enjoy all the new features today!

    Release notes & download

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