Q900 SDR Radio Transceiver V4 | Built-in Battery Portable FT8

Q900 SDR Transceiver V4 is a sophisticated and compact SDR radio that utilizes the software-defined radio (SDR) technology to operate on all modes and bands of amateur radio frequencies ranging from 1.8MHz to 470MHz. The Q900P SDR Transceiver supports various operation modes such as FT8, SSB, CW, AM, FM, RTTY and DMR, and offers all the advanced functions and features expected from high-quality radio stations. The radio also has a built-in Bluetooth feature that enables seamless connection with mobile phones, computers, and Bluetooth microphones.

The Q900 SDR transceiver is ultra-portable and supports all frequencies and modes. The standard kit contains Bluetooth, sound card module, and automatic tuner. Optional modules include GPS, LORA, electronic compass and wired microphone. The HAM-BOX App allows remote control via smartphone.

The Q900 SDR transceiver has a full keyboard design and built-in Bluetooth, sound card and communication serial modules. It fully supports popular radio control and logging software. The HAM-BOX mobile app allows easy control and operation of the radio. Note: Specifications may change without notice.

The Q900 SDR transceiver has advanced features as an expensive radio has. It has dual VFO mode, IF offset adjustment, IF noise suppression, AGC speed selection, RF gain adjustment and squelch control. It also has a built-in telegraph automatic key, CTCSS analogue sub tone and automatic shutdown feature. It can be connected to a pc for remote control.

Optional Modules:

1. DMR Module (NOT for User Installation, Factory Pre-installed ONLY, if you need DMR mode, please buy the FULL KIT version)
2. GPS Module (OK for User Installation)
3. Compass Module (OK for User Installation)

Reviews on Q900 V3:

• Q900 Version 3 – ALL BAND ALL MODE HF/VHF/UHF TRANSCEIVER
• Q900 ALL BAND ALL MODE HF/VHF/UHF TRANSCEIVER V3 

Some Useful Videos:

Features:

• -Real-time Spectrum Display
• -Waterfall chart
• -Full-band support SSB, CW, RTTY, AM, FM
• -Dual frequency conversion
• -IF width and IF shift
• -DSP digital noise reduction
• -Built-in 160-6m high-speed automatic antenna tuner
• -Built-in cw keyer, provides various parameters for setting
• -USB TYPEC3.1 port for both power supply and pc connection
• -Dual antenna port (HF / 50 MHz, 144 MHz / 430 MHz)
• -High accuracy TXCO ± 0.5 ppm (-10-60 ℃)
• -Ultra-wide working voltage: 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
• -Light-weight and portable
• -Built-in battery

Specifications:

Q900 SDR Transceiver Specifications
Optional Modules:	GPS, Compass, DMR
A) Transmitter
Architecture:	SDR
TX Mode:	SSB, CW, RTTY, AM, FM
Frequency Resolution:	1 Hz
Working Frequency (MHz):	1.8-2, 3.5-3.9, 5.3515-5.3665, 7-7.2, 10.1-10.15, 14-14.35, 18.068-18.168, 21-21.45, 24.89-24.99, 28-29.7, 50-54, 144-146, 430-440
Output Power:	HF+6M: SSB/CW/FM (1-30W), AM (1-5W) VHF: SSB/CW/FM (0.5-5W) UHF: SSB/CW/FM (0.5-5W)
TX Current:	13.8V-5A
Carrier Suppression:	>=50 dB
Spurious Suppression:	1.8-54 MHz: >=50 dB, 144-146 MHz: >=60 dB, 430-440 MHz: >=60 dB
Antenna Jack:	SO239(HF+6M), SMA(V/U)
Working Temperature:	-10 ℃ to 60 ℃
Working Humidity:	10% – 90%
B) Receiver
Architecture:	SDR
RX Mode:	SSB, CW, RTTY, AM, FM
Frequency Resolution:	1 Hz
Working Frequency:	0.1-500 MHz
RX Sensitivity:	0.5 uV (1.8-30 MHz) 0.35 uV (50-54 MHz) 0.2 uV (144-146 MHz) 0.2 uV (430-440 MHz)
RX Current:	13.8V-0.22A typical, 0.3A (highest brightness, audio peak)
Memory Channels:	100

Packing List:

1. Q900 Main Unit x 1
2. Power Cable x 1
3. USB Cable x 1
4. Handheld Mic x 1
5. USB Disk x 1
6. Carrying Case x 1

What’s included in a full kit?

 

Comparison of Q900 on Different Versions:

Feature	V1	V3	V4
70-70.5MHz band	No	No	Yes
UV operation from rear SMA jack	No	No	Yes
Output audio power of headphone jack	Low	Low	High
MCU model and main clock	STM32F429IIT6, 180MHz	STM32H743IIT6, 480MHz	STM32H743IIT6, 480MHz
DMR mode	No	Yes	Yes
Hardware design	Modular parts	Modular parts	Highly integrated
Built-in battery and capacity	No	Yes, 4800mAH @8.4V	Yes, 4800mAH @8.4V
Battery life for reception only	N/A	Up to 8 hours	Up to 8 hours
Output power on HF band	N/A	Up to 10 watts	Up to 10 watts