Guohe Q900 HF/VHF/UHF All Mode SDR Transceiver


Q900 is an ultra-portable full frequency full mode SDR radio launched by us. The receiving frequency is 300kHz ~ 1.6GHz, and the amateur transmitting band covers 160m ~ 70cm. Q900 is designed with three power supply modes, including a built-in battery, USB port power supply and DC port power supply. The power supply voltage range is 5VDC ~ 32VDC. At the same time, all power ports support anti-reverse connection protection.


Q900P is an ultra-portable all-modes all-bands radio based on the software-defined radio (SDR) technology. The frequency covers all amateur bands from 1.8 MHz – 470 MHz. Q900 operation modes include FT8, SSB, CW, AM, FM, RTTY and DMR. It includes all the advanced functions and features of all radio stations.  Built-in Bluetooth, can be directly connected to mobile phones, computers, and Bluetooth microphones. 

Standard FM module, Bluetooth module, Bluetooth microphone Built-in, sound card Built-in, automatic tuning Built-in memory, Optional GPS module, LORA module, electronic compass module, wired microphone.

Q900 is an ultra-portable full-frequency full-mode SDR radio. HAM-BOX is an independently developed App for a smartphone that permits remote control of the Q900 transceiver.

The HAM-BOX mobile app we developed allows the mobile phone to easily control and play radio stations, it makes the operation of the radio more convenient and fast, the radio adopts a full keyboard design, built-in Bluetooth module, Sound card module and communication serial module. Full support for currently popular radio control software and logging software, We are working hard to give you more playable space. Note: Specifications are subject to change without notice or obligation. 

The Q900 has many advanced functions that are only available in a large base station. The machine has dual VFO mode, different frequency working function, IF offset adjustment, receiving frequency fine adjustment, IF noise suppression, AGC speed selection, RF gain adjustment, squelch control, pre attenuator, AM broadcast reception, built-in telegraph automatic key, automatic key point ratio adjustment, built-in CTCSS analogue sub tone, automatic shutdown function (APO), transmission timeout function (TOT), connection with a computer, computer-aided control function, copy function, etc.

Guohe Q900 HF/VHF/UHF All Mode SDR Transceiver
Guohe Q900 HF/VHF/UHF All Mode SDR Transceiver
Guohe Q900 HF/VHF/UHF All Mode SDR Transceiver
Guohe Q900 HF/VHF/UHF All Mode SDR Transceiver


  • Real-time spectrum.
  • Waterfall chart
  • Doppler frequency tracking
    4, using software-defined radio technology (SDR), full-band support SSB, CW, RTTY, AM, FM
  • Double frequency conversion circuit structure
  • IF width and IF shift hardware and software can be modified to provide powerful IF interference suppression
  • DSP digital noise reduction
  • Built-in 160-6m high-speed automatic antenna tuner
  • Built-in electronic key controller, all parameters can be set flexibly
  • Built-in FLASH memory
  • USB TYPEC3.1 interface for power supply and computer connection
  • Dual antenna interface (HF / 50 MHz, 144 MHz / 430 MHz)
  • High accuracy TXCO ± 0.5 ppm (-10-60 ℃)
  • Ultra-wide working voltage range: 5-32VDC
  • Built-in GPS / Beidou, GSM, electronic compass (acceleration, angle sensor) (optional)
  • GPS time (requires optional GPS module)
  • Built-in UTC clock
  • Voltage display
  • Unique LORA data transmission (requires an optional LORA module)
  • Built-in sound card with IQ and audio output
Guohe Q900 HF/VHF/UHF All Mode SDR Transceiver

1) Numeric keypad
2) LCD
3) Function keyboard

4) Headphone connector

5) Wired hand microphone interface

6) Receive indicator
7) Emission indicator

                                                                                       Technical Data:

Transmitter ArchitectureSDR
Transmission ModeSSB, CW, RTTY, AM, FM
Frequency Resolution1 Hz
Transmission Frequency Range

1.800 – 2.000
3.500 – 3.900
5.351.5 – 5.366.5 
7.000 – 7.200 
10.100 – 10.150 
14.000 – 14.350 
18.068 – 18.168 
21 – 21.450 
24.890 –  24.990 
28 – 29.7 
50 – 54 
144 – 146 
430 – 440

Output Power

HF + 6M: SSB: (1-30W)
CW: (1-30W)
FM: (1-30W)
AM: (1-5W)
VHF: SSB / CW / FM (0.5-5W)
UHF: SSB / CW / FM (0.5-5W)
TX: 13.8V-5A
RX: 13.8V-0.22A typical, 0.3A (highest brightness, audio peak)

Carrier Suppression< 50 dB
Stray Suppression1.8-54 MHz: ≥ 50 dB
144-146 MHz: ≥ 60 dB
430-440 MHz: ≥ 60 dB
Antenna InterfaceTNC / BNT / M (optional)
Working Temperature-10 ℃ to 60 ℃
Working Humidity10% – 90%

                                                                                     Receiver Parameters:

Receive ArchitectureSDR
Receive ModeSSB, CW, RTTY, AM, FM
Receiving Frequency Range300 KHz—500 MHz
SSB / CWBW: 2.4 KHz @ 10 dB S/N
0.18 uV (1.8-54 MHz), 0.25 uV (144-146 MHz), 0.25 uV (430-440 MHz)
AMBW: 6 KHz @ 10 dB S/N
15 uV (0.3-1.8 MHz), 2 uV (1.8-54 MHz), 2 uV (144-146 MHz), 2 uV (430-440 MHz)
FMBW: 15 KHz @ 12 dB S/N
0.5 uV (28.0-29.7 MHz), 0.25 uV (50-54 MHz), 0.3uV (144-500 MHz), 0.5 uV (430-440 MHz)
Memory Channels999

                                                            Additional Options:

Additional information

Weight 2 kg