XIEGU G90S Manual
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XIEGU G90S Manual

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The G90S is an amateur radio short-wave transceiver with a portable 20W in the
SDR architecture. It is a new member of the Xiegu product family and the first
portable SDR model in the G series.
Based on 24bit-C0DEC sampling, the G90S brings superior transceiver
performance and a highly configurable feature experience; the separate head
design allows you to flexibly position your host; with built-in high-performance
ATU, you can meet your needs at any time. From then on, the antenna erection
and adjustment are no longer problems.
High-performance RF front end
SSB/CW/AM/ three working modes
1.8 inch high color TFT LCD
±24k bandwidth spectrum display, waterfall display
Software-defined narrow-band filter (CW mode can be as narrow as 50Hz),
built-in CW decoder
Separable head design
Built-in standing-wave scanner
Built-in efficient automatic antenna tuner
Please read this manual carefully for a better experience and full understanding
on operation of the G90S.
■
G90S is a version in the People's Republic of China, and G90 is a version in
other countries or regions. This operation manual is applicable to the both
models. The contents of this manual are explained with the G90S model.
Introduction
1

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Summary of Contents for XIEGU G90S

  • Page 1 G90S. ■ G90S is a version in the People's Republic of China, and G90 is a version in other countries or regions. This operation manual is applicable to the both models. The contents of this manual are explained with the G90S model.
  • Page 2 Specification & Parameters General parameters Frequency range: Receiving: 0.5MHz~30MHz Transmitting: 1.8~2.0MHz 18.068~18.168MHz 3.5~3.9MHz 21.0~21.45MHz 7.0~7.2MHz 24.89~24.99MHz 10.1~10.15MHz 28.0~29.7MHz 14.0~14.35MHz Operating mode: CW, AM, SSB Minimum step: 10Hz Antenna 50Ω impedance: Scope of working 0°C ~ +50°C temperature: Frequency ±1.5ppm in the 10~60min after startup stability: @25°C: 1ppm/hour 10.5~16.5VDC, negative electrode grounding...
  • Page 3 Specification & Parameters Receiver parameters Circuit type: Neighbor channel suppression: ≥60dB Sideband suppression: ≥60dB Sensitivity: SSB/CW 0.5~1.79999MHz 10uV 1.8~1.99999MHz 0.35uV 10uV 2.0~27.9999MHz 0.25uV 28.0~30.0MHz 0.25uV (PRE=on, ATT=off, NB=off, NR=off, SSB/CW/AM=10dB S/N) Mirroring suppression: 70dB Midband suppression: 60dB Audio output: 0.5W (8Ω, ≤10% THD) Audio output impedance: 4~16Ω...
  • Page 4 Accessories & Optional Components Accessories of host: Multi-function hand microphone : 1 in number USB cable: : 1 in number DB9 extension line: : 1 in number Separating head fixing stud : 2 nos Hexagon wrench : 1 in number Power line : 1 in number Warranty card...
  • Page 5 Interface Definition Definition of microphone interface Wiring diagram of COMM plug Wiring diagram of earphone plug Definition of ACC terminal Signal Signal Tail ACC socket Wire connection of telegram keys Common Common Note: ♦ If the connector of the telegraph key is a 6.5mm 2-core plug, please change it to a 3-core 3.5mm stereo plug according to the wiring method shown in the figure above, and connect the trigger end of the electric key to the "Di"...

  • Page 6: Machine Interface

    Machine Interface Volume knob • Turn the knob to increase or decrease the volume. • Short press the knob to switch to the headphone output mode. Power supply/transceiver indicator light • Standby/receiving state: yellow-green; • It is red under transmitting state. Power switch •...
  • Page 7 Panel Keys 12 Function keys The key definitions and functions are detailed in the operation section (Page 12).

  • Page 8: Antenna Interface

    Machine Interface 13 Antenna interface SL16-K type interface, impedance 50Ω. 14 KEY interface It is a 3.5mm stereo interface used to connect manual/auto telegram keys. (See Page 5 for the wiring method) 15 COMM interface It is used for updating the machine hardware. 16 I/Q signal output port It is a 3.5mm interface (3 wires) used for IQ signal output.
  • Page 9 Machine Interface 20 MIC (microphone) interface (located on the right side) It is used to connect attached multi-function handheld microphone. 21 Headphone interface (located on the left side) It is a 3.5mm stereo socket (3 wires) interface used to connect earphones. (See Page 5 for the wiring method) 22 Communication interface (located on the left side) It is used for hardware updating of head unit and the on-line control with...
  • Page 10 Hand Microphone Keys 1. LOCK key Lock button 2. PTT key Transmitting control key Frequency increase/ decrease key (user-defined, 3. Up/down detailed in system menu 1) 4.Transceiver indicator light Hand microphone operation indicator light 5. Figure key area Figure keyboard area 6.
  • Page 11 EMC magnet ring can be applied on power lines to prevent external disturbance from entering radio via power lines and radio-frequency interference in radio from radiating externally via power lines when external power supply is adopted for G90S. Magnet ring shall be installed at the side closing to radio. ♦...
  • Page 12 Functions of Panel Keys and Switching Button First function (short press, cycle) Second function (FUNC+) Long press PRE/ATT PRE - ATT - direction connection Digital filter F-L, low-pass cutoff frequency Reset CMP/F-L Turn it on to transmit voice compression selection parameters Digital filter F-H, high-pass startup Reset...

  • Page 13: Screen Display Icon

    Screen Display Icon Power supply voltage indication Status display area Mode display Volume indication VFO display ar Receive bandwidth indication Multi-function indicator Standing-wave display area Receiving state is meter s Transmission state is power Receiving level display meter Spectrogram display area Waterfall diagram display area Function and definition of display icon: : pre-amplifier is open.

  • Page 14: Operation

    Operation Dear user, in order to familiarize you with the functions and proficiency of the G90S portable transceiver as soon as possible, please read the operation guide of this manual to understand the powerful functions of the G90S. Let's start!

  • Page 15: Operating Mode Selection

    Operation Selection of Working Frequency Frequency band decrease Frequency band increase Range： Frequency range of G90S covers 0.5~30MHz. Amateur frequency in such range is divided into 10 frequency bands, and frequency band switch can be achieved by adopting many types of different modes.
  • Page 16 Operation Volume adjustment Speaker mode: Turn the volume knob to the left or right to adjust the output volume. Headphone mode: Short press the volume knob to enter the headphone mode. Volume knob Turn the volume knob to the left or right to adjust the headphone volume. ♦...
  • Page 17 Operation Working Frequency Setting There are two methods for setting working frequency of G90S, i.e., set by using the large knob or multi-function hand microphone. 1. Set frequency by using main knob Press the main knob in a short time to ...

  • Page 18: Operation Methods

    Operation Adjustment of RF Gain and Muting Level RF GIAN / SQL Proper RF gain can facilitate to improve the quality of signal received. In general, Appropriately reducing the RF gain value at some low-frequency ranges with strong interference can significantly improve the hearing. Adjustment methods of RF gain: 1.
  • Page 19 Spectrum reference level setting Multi-function Adjustment Knob ----------------------------------------------------------------------------------------------- Pilot Frequency Receiving and Sending Operation SPL and VFOA/B Settings G90S transceiver VFO operation built-in independent VFOs which can respectively set differ tent frequencies and modes. Cooperated with SPL function, it can conveniently achieve...

  • Page 20: Automatic Gain Control (Agc)

    Operation ♦ VFOA/B can be fully used to set different frequencies and modes,so as to quickly switch the two frequency points in real time. ----------------------------------------------------------------------------------------------- Automatic Gain Control (AGC) Select appropriate AGC control parameters in different work modes to achieve a good receiving effect.
  • Page 21 Operation PRE AMP/ATT The pre-amplifier can improve the receiving effect of some weak signals of high frequency range and the sensitivity of the receiver. Press [PRE] key at the bottom of the screen in a short time and the character P will appear on the top left corner of the screen, indicating that the pre-amplifier is turned on.
  • Page 22 Operation ■ NB suppression width and level can be properly adjusted to effectively suppress different kinds of pulse interference. ■ improper NB parameter setting will severely affect the receiving effect. Disabling the NB function at ordinary times is recommended. ----------------------------------------------------------------------------------------------- Voice Compression CMP The voice compression can increase the average power output during the voice communication so that signals can be resonant.
  • Page 23 4. Press telegram key to enable CW communication. Practice mode You can take G90S as a CW code trainer in following methods: Disable the QSK function in the [KEY] key function. There will be only CW sidetone of transceiver after ...
  • Page 24 Operation SSB Communication Insert the hand microphone into the MIC port on the right side of the radio head unit. After inserting, the green indicator light on the hand microphone shall be 1. Press [MODE] key (<Or>) at the top of the setting, indicating that the band width is 2.4kHz.

  • Page 25: Automatic Antenna Tuner

    Operation Automatic Antenna Tuner There is an efficient ATU integrated inside the G90S radio to help you quickly erect and debug antenna. 1. Press [TUNE] key in a short time to connect with 2. In the case that the antenna tuner is accessed, long built-in antenna tuner.
  • Page 26 ------------------------------------------------------------------------------------------------------------------------------------- Line Input and Output The G90S has an external line input interface. When the G90S is used for data communication cooperating with a computer or an external modem, the correct corresponding signal input option shall be selected.
  • Page 27 2. Rotate the [Multi-Function Adjustment Knob] to set the power, with the stepping of 1W. POW key Please minimize the preset transmitting power when the G90S radio is used for the first time under the ♦ condition of not understanding the current state of antenna.
  • Page 28 Operation Digital Filter The G90S has a built-in variable digital filter that can continuously adjust the bandwidth of the filter and improve the anti-interference performance and selectivity of the radio. The G90S has two filter adjustment modes: center frequency point mode and bandwidth mode.
  • Page 29 Operation Spectrum/ Waterfall Display The G90S radio can display the spectrum diagram and waterfall diagram of receiving signals and can quickly observe whether there is communication signal on the neighboring frequency so that uses can quickly track and switch frequencies and search the radio.

  • Page 30: Connection Steps

    Operation Data Communication The G90S supports all amateur data communication modes and the full-function control of the computer software to the radio. Only simple wiring is needed for the amateur data communication. Appropriate digital work mode shall be selected before operation. The...
  • Page 31 AF_IN: Audio output accessing to the computer Insert the computer voice frequency Insert into the USB port of the Input/ output port computer Left side of the computer Insert into the communication XIEGU general data wire port Schematic Diagram of Wiring between G90S Data Communication...
  • Page 32 AACL control will automatically decrease the output power of the radio so that the output power of the XPA125B will be kept to be about 100W. We suggest that the output power of the G90S is set to be ≤2.5W to protect the amplifier equipment.
  • Page 33 Description of System Menu System Menu The system menu enables customized setup for partial functions. You may use this feature to configure the settings suitable for you. Operation method: Hold the [FUNC] key to enter the system menu. The definitions of menu functions are as follows: Menu name Function description Hand microphone up/down key function...
  • Page 34 Description of System Menu Menu item 1: Handle up/down Function: Customize the function of [▲▼] key on multi-purpose hand microphone. Optional value: FREQCH+/- Frequency/channel+/- BAND+/- Band+/- VOLUM+/- Volume+/- Default: FREQCH+/- Menu item 2: Handle F1 Function: Customize the function of [F1] key on multi-purpose hand microphone. Optional value: PRE/ATT SPLT COMP...
  • Page 35 Description of System Menu Menu item 6: AUX OUT Volum Function: Set the volume of ACC port output audio signal Adjustable range: 0~15 The large the value, the greater the volume Default: 15 Menu item 7: RCLK Tune Function: Regulate the reference clock of radio's internal frequency combiner. Able to correct the frequency deviation of the radio.

  • Page 36: Factory Reset

    Factory Reset Factory Reset When the parameters of the radio is disarranged or in case of any other situation that causes improper parameters, this function enables the restoration of factory settings. Operation methods: 1. Hold the FNUC key to start up and enter the restoration of factory settings. 2.
  • Page 37 ----------------------------------------------------------------------------------------------- Wave Band Voltage Data The ACC socket of the BAND terminal of G90S outputs the band voltage of each frequency band. This band voltage is associated with the current frequency band of the radio and can control peripherals to achieve automatic wave band switch or can be used by other equipment to identify wave brand information.
  • Page 38 Copyright Statement All Rights Reserved, 2019 Chongqing Xiegu Technology Co., Ltd. reserves all rights of the manual. All parts of the manual shall not be copied without permission. ------------------------------------------------------------------------ 1010160204-C...
  • Page 39 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

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