G106 HF Transceiver Operation Manual

The G106 is a 5W portable QRP transceiver featuring an SDR circuit structure with 16bit-CODEC sampling for superior performance. It supports USB/LSB/CW/AM modes and includes WFM (87-108 MHz) receiving for local FM broadcasts. A CW digital filter with three bandwidths aids in connecting with distant stations. With the optional DE-19 digital adapter, it can connect to a computer for FT8 communication.

As an entry-level portable SDR transceiver, the G106 is designed for CW and FT8 operation.

Basic Features:

High-performance SDR core circuit
Compact and robust structure
Transmission and receiving across all amateur frequency bands within 3.8-29.7 MHz
WFM broadcast receiving
Shortwave full-range continuous receiving
Amateur data communication capability
Computer online control capability

Front Panel Overview:

The G106 features several controls and interfaces on its front panel:

1. Volume knob: Adjusts volume. Short-press to switch between built-in and hand microphone speakers.
2. Hand microphone interface: External hand microphone connection.
3. Display: Black and white dot matrix display.
4. T/R indicator: Status indicator.
5. Main knob: Changes the current frequency.
6. Multi-function buttons: Execute functions displayed on the screen.
7. Power button/screen backlight brightness: Long-press to power on/off. Short-press to toggle display backlight.
8. MODE button: Short-press to switch working modes. Long-press to turn on/off the preamplifier.
9 & 10. Band switch button/lock: Short-press to switch frequency bands (HF) or stored FM stations (WFM). Press both simultaneously to lock/unlock all buttons and knobs.

Rear Panel Overview:

11. Antenna interface: BNC interface with 50Ω impedance.
12. KEY interface: 3.5mm stereo socket for connecting a manual or automatic key.
13. ACC interface: 8-pin Mini-Din interface for accessory connections.
14. Ground nut: For grounding the equipment.
15. COM Interfaces: Communication interface.
16. DCIN external DC power interface: 5.5*2.5mm DC power socket for 9-16V input.

Interface Details:

MIC interface: Has a bias voltage; do not short-circuit.
COM interface: For communication.
ACC interface: For accessories.
Key wiring diagram: For connecting straight keys or morse keys. Ensure correct plug conversion (2-pole 6.5mm to 3-pole 3.5mm) to avoid continuous CW transmission.

Power Connection:

The G106 operates on 9-16V DC with a minimum current capacity of 3A. Connect the power supply carefully, ensuring correct polarity (white-core line to positive, metal-shielded line to negative). Using an EMC ferrite bead on the power line can help prevent interference. Incorrect polarity or abnormal voltage can damage the unit and may void the warranty.

Operation:

The G106 utilizes a multi-function menu system. Functions are organized into menu pages, with four options per page.

Accessing Menus: Short-press a multi-function button to open the menu. Turn the main knob to cycle through menu pages. Press the multi-function button corresponding to the on-screen menu item to execute.
Saving Changes: Some functions require pressing "SAVE" to confirm adjustments. "QUIT" exits without saving.

Menu Structure:

Menu Page	Menu Item	Description
1/5	V/M, A/B, MW, MC	Frequency/channel mode, VFOA-VFOB switching, Memory channel, Erase memory channel
2/5	CWF, CWT, CWR, QSK	CW filter selection, CW sidetone, CW dot-to-dash ratio, QSK switch
3/5	KS, KM, IMB, CSN	Automatic key rate, Key mode, IAMBIC mode, Startup information settings
4/5	SPL, DIS, BP, VER	Pilot frequency mode, Display mode, Keypad tone, Version information
5/5	WFM	FM receiver

Display Information:

The black and white dot matrix display shows status information including T/R status, VFO indication, S table, spectrum display area, QSK status, and current operating frequency.

Basic Operations:

Power On/Off: Short-press the power button to power on. Long-press for approximately 2 seconds to power off.
Screen Backlight: Short-press the power button in the power-on state to turn the display backlight on/off.
Adjust Volume: Turn the volume knob. Short-press to switch speakers.
Frequency Band and Mode Selection: Press the MODE button to change modes. Use the BAND left/right buttons to cycle through frequency bands (1.8 MHz, 3.5 MHz, 7 MHz, 10 MHz, 14 MHz, 18 MHz, 21 MHz, 24 MHz, 28 MHz).
Set Operation Frequency: Adjust the TS step using the BAND buttons (long-press for 2s to step up/down). Then, turn the main knob to set the desired frequency.
Preamplifier: Long-press the MODE button to toggle the preamplifier. The "P" logo appears on the display when active. Turn off the preamplifier if the signal is strong or interference is high to prevent receiver overload.
Lock Buttons: Press and hold both BAND buttons simultaneously for 2 seconds to lock/unlock all controls except the power and volume knobs. A lock symbol appears on the screen when locked.

CW Mode Operation:

Connect a straight key or morse key to the KEY interface.
Enable the QSK function in the menu and set the rate.
Press the morse key to enable CW communication.
CW Filter (CWF): Access menu [2/5], select CWF, and use the main knob to choose bandwidth (500 Hz, 250 Hz, 50 Hz). Press SAVE.
CW Sidetone (CWT): Access menu [2/5], select CWT, and use the main knob to set the sidetone frequency. Press SAVE.
If QSK is disabled, pressing the morse key only produces sidetone, no external transmission occurs.
CW Parameters: KS (key rate), KM (key mode), IMB (IAMBIC mode), QSK (QSK switch) can be configured via the menu.

FM Radio Operation:

Access menu [5/5] and select WFM to enter the FM radio interface.
Scan Stations: Use the $$ buttons to automatically search and store stations.
Manual Tuning: Use the main knob to manually adjust frequency.
Switch Stored Stations: Use the BAND left/right buttons.
Adjust volume using the volume knob.

Channel Storage and Clearing:

Store Channel: Select desired frequency and mode. Access menu [1/5], select MW. Turn the main knob to choose an empty channel (indicated by "E"). Press SAVE. If the channel is not empty, it will be overwritten.
Delete Channel: In channel mode, select the channel. Access menu [1/5], select MC, and choose "CLR" to delete.
Short-press BAND left/right buttons to switch between stored channels.

Set Startup Display Information:

Edit and display your call sign on the startup interface.

Access menu [3/5], select CSN.
Use QUIT (cancel), BACK (delete last character), and SAVE (save and exit).
Turn the main knob to select characters and press it to confirm.

Set Display Mode:

Customize the main interface display.

Access menu [4/5], select DIS. Choose from SCOPE+S (spectrum + S table), SCOPE (spectrum only), or BIG SCOPE (large spectrum). Press SAVE.
Short-press the main knob to quickly return to the spectrum display state if the bottom menu is visible.

Enable/Disable Keypad Tone:

Access menu [4/5], choose BP, and press the BP function button to toggle the tone.

View Software Version:

Access menu [4/5], choose VER to view firmware version and date. Press any button to exit.

Connection with XPA125B and Computer:

Connect the G106 to a computer and XPA125B amplifier using the DE-19 adapter for data communication and power expansion.

Complete connections as per the diagram.
Install the CH342 port driver.
Select "XIEGU G90" in the data communication software.
Use the sound card virtualized by DE-19 for audio input/output, ensuring separate devices for input and output.

Computer Control Instructions:

The G106 uses CI-V instruction sets for remote control. The ACC interface provides wave band voltage data for peripheral device control and identification.

Wave Band	Voltage	Wave Band	Voltage	Wave Band	Voltage	Wave Band	Voltage
/	/	7 MHz	920 mV	18 MHz	1610 mV	28 MHz	2300 mV
3.5 MHz	460 mV	10 MHz	1150 mV	21 MHz	1840 mV	/	/
5.0 MHz	690 mV	14 MHz	1380 mV	24 MHz	2070 mV	/	/

Specifications:

Receiving frequency: 0.551-30 MHz; 87-108 MHz (WFM)
Transmitting frequency: 3.5-3.9 MHz, 5.3515-5.3665 MHz, 7.0-7.2 MHz, 10.1-10.15 MHz, 14.0-14.35 MHz, 18.068-18.168 MHz, 21.0-21.45 MHz, 24.89-24.99 MHz, 28.0-29.7 MHz
Operating mode: USB/LSB/CW/AM, WFM (receive only)
Receiving sensitivity: CW: 0.25uV @ 10 dB S/N; SSB: 0.5uV @ 10 dB S/N; AM: 10uV @ 10 dB S/N
Frequency stability: ±1.5 ppm within 30 min after power on; 1 ppm/hour @ 25°C
Transmitting power: ≥5W @ 13.8V DC
Transmitting spurious suppression: ≥50 dB
Audio output power: 0.3W
Operating voltage: 9-15V DC
Standby current: 0.37A @ Max
Transmitting current: 2.8A @ Max
Dimensions: 120*40*135 mm
Weight: Approx. 720g (host only)

Specifications are typical for amateur bands and subject to change without notice. Operating frequency ranges may vary by region.

Packing List:

Item Name	Qty.
G106	1 set
Standard hand microphone	1 no.
Power line	1 pc.
Warranty card	1 copy
Manual	1 copy
Certificate of conformity	1 copy

Optional Supporting Products:

DE-19: External USB communication adapter (for G90, G90S, G106).
XPA125B: 100W power amplifier and antenna tuner.
L4001 cable: Dedicated control cable for XPA125B (for X6100, G106).

FCC Caution:

Unauthorized modifications may void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) no harmful interference, and (2) acceptance of any received interference. This equipment has been tested and found to comply with Class B digital device limits, designed for reasonable protection against harmful interference. If interference occurs, try measures like reorienting the antenna, increasing separation, or consulting a dealer.

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