XIEGU G1M Operation Manual

Table of Contents

• Basic Features
• Front Panel
• Rear Panel
• Connector Pin-Outs
• External Power Connection
• Menu & Features
• LCD Display
• Connection to PC
• Band Voltage Data
• Specifications
• Packing List

Basic Features

The new G1M is a 5W portable QRP transceiver using SDR technology. Its A to D chip is a 16bit and provides excellent performance. The newly added AM broadcast reception capability allows you to listen to news broadcasts from around the world. The new 800Hz narrowband CW digital filter makes CW reception a real pleasure.

Even as an entry-level portable SDR, the G1M SDR provides many advanced features which make your operating experience more enjoyable.

• High performance 16 Bit SDR ADC
• Spectrum display function
• Added AM broadcast receiving mode
• Added CW Trainer function (supports full insertion)
• Adaptive speech noise reduction
• HF General Coverage Receiver
• Support for amateur data communications
• Support for on-line computer control

Front Panel

The front panel of the G1M features the following controls:

• 1 Power switch / volume: Rotate the switch to turn the device on or off. Rotate the knob to increase or decrease the volume of the radio.
• 2 MIC interface: External mic interface.
• 3 Multi-function button: Used for menu functions on the screen.
• 4 LOCK Lock button: Light press this button to switch to the current menu page. Hold press the button for 2s to lock the button operation.
• 5 Display screen: Hi-Res OLED Display screen.
• 6 Frequency knob: Rotate this knob to change the current frequency value. Press in this knob to return from the current selection.

Rear Panel

The rear panel of the G1M includes the following interfaces:

• 7 Antenna interface: BNC Connector. Impedance 50Ω.
• 8 ACC interface: Output band voltage signal and PTT signal.
• 9 COMM interface: PC Communication interface / firmware upgrade interface.
• 10 KEY interface: This interface is a 3.5mm stereo jack (3-pin) for connecting manual or automatic telegraph keys.
• 11 SPK External speaker interface: This interface is a 3.5mm stereo jack (3 conductor) for connecting external speakers.
• 12 DC IN external DC power interface: This interface is a 5.5*2.5mm DC power socket.
• 13 Grounding screw nut: Ground connection for equipment.

Connector Pin-Outs

Detailed pin-out information for various connectors:

• 1, MIC: PTT, MIC, GND. Note: The MIC pin has a bias voltage and cannot be shorted.
• 2, COMM: RXD, TXD, GND.
• 3, SPK: Signal, Signal, GND.
• 4, ACC: PTT, Band Voltage, GND.
• 5, CW key lead connection method: Diagram showing connection of a CW key lead with 'di', 'da', and 'Common' terminals.

External Power Connection

The G1M can use a 13.8V DC power supply. The DC power supply requires a current load capacity of at least 3A. The supplied power cord can be used to connect the radio and DC power.

When connecting the DC power supply, please carefully connect according to the following figure to avoid the polarity of the power supply being reversed. The white core wire is connected to the positive pole of the power supply, and the metal shielded wire is connected to the negative pole of the power supply.

Diagram: Shows the rear panel of the G1M with DC IN connected to a power supply. A white wire connects to the positive terminal and a metal shielded wire connects to the negative terminal of the power supply.

When the G1M uses an external power supply, in order to prevent external interference from entering the radio through the power line, please place a snap-on ferrite choke close to the DC plug. Loop the DC cord through the choke a few times.

Diagram: Illustrates looping the power cord through a ferrite choke twice, positioned close to the DC plug.

• When using an external power supply, carefully check the polarity of the power cord to prevent the polarity from being reversed.
• The limited warranty of this radio does not include damage caused by an external power connection error, or damage caused by abnormal power supply voltage.

Menu & Features

The G1M uses a multi-function menu for various functions. All functions are distributed in different menu pages, and each menu has 5 function options.

Operation: Light press the main tuning knob to switch between the four-page menu. The five multi-function buttons at the bottom of the screen correspond to the displayed function menu.

Momentarily press the "lock" button to switch the menu page. Hold press the "lock" button to lock the button operation.

LCD Display

The G1M uses an OLED display screen that displays all status information for the user. It has excellent visibility in outdoor sunlight.

Diagram: Shows the G1M display with labels:

• Transmission Status
• Operating Mode
• Work Status Display Area
• Working Frequency Display Area
• Spectrum/Menu Area

The display shows:

• R (Receive)
• LSB (Lower Sideband)
• 07.060.000 (Working Frequency)
• B 07.050.000 (Another Frequency)
• QSX (Status Indicator)
• MD B- B+ TS A/B (Spectrum/Menu Area indicators)

Connection to PC

The G1M can be connected to a computer and controlled with third-party software.

Connection cable method:

1. Install the driver for the data cable on the PC side.
2. Plug the data cable into the COMM port and connect the G1M to the computer.
3. Run the corresponding computer software.

Note: When using software such as HRD, the G1M must be in VFO mode; it cannot be in channel mode, otherwise it will not be able to connect. Try the IC-7000 configuration for CAT control. Others may work as well. Check Forum.

Computer Control Instruction

G1M uses the standard CIV instruction set. You can use the standard instructions of this instruction set to remotely control the transceiver. You can also configure the control instructions of other software to control the G1M.

Band Voltage Data

G1M's ACC port provides band data voltage for the four TX bands. The band data can control a peripheral device to automatically switch the band of the G1M (such as the XPA-125B).

In the other frequency bands except the above four amateur bands, the band voltage is uniformly outputted at a high level, 5V.

Specifications

• Receiving frequency: 0.5~30MHz (Continuous)
• Transmitting frequency: 3.5~4.0MHz, 7.0~7.3MHz, 14.0~14.35MHz, 21.0~21.45MHz
• Operating mode: SSB/CW/AM (AM Used only to receive broadcasts)
• Receiving sensitivity: 0.45uV @12dB SINAD
• Transmit power: 5W @13.8V DC
• Spurious suppression: ≥45dB
• Frequency stability: ±1.5ppm (30 minutes after turning on the power)
• Audio output power: 0.5W
• Operating Voltage: 12~15V DC
• Stand-by current: 0.5A @Max
• Transmitting current: 2.5A @Max
• Case size: 97*40*155 (mm)

Packing List

• G1M: 1 PCS
• Mic: 1 pcs
• POWER CABLE: 1pcs
• User manual: 1pcs
• Certificate: 1pcs
• Warranty Card: 1pcs