The "QMX" (QRP Labs Mulitmode Xcvr): a feature-packed, high performance, five-band (80, 60, 40, 30, 20m) 5W multi-mode transceiver kit. , including embedded SDR receiver, 24-bit 48 ksps USB sound card, CAT control, synthesized VFO with TCXO reference. QMX has SSB modes USB and LSB using external microphone or USB (host PC) audio.

QMX in Digi mode transmits a SINGLE SIGNAL, it is not an SSB modulator with associated unwanted sideband and residual carrier, or intermodulation due to amplifier non-linearity. QMX outputs a pure single signal. Digi mode is suitable for single tone FSK modes, which covers the majority of digital modes in use today This includes everything in WSJT-X (except MSK144), JS8Call, some fldigi modes e.g. RTTY, Olivia and more. QMX is also suitable for on/off keyed modes such as CW because it has click-reducing RF envelope shaping. For phase shift keyed modes such as PSK31 or modes involving multiple concurrent tones such as VARA WinLink, SSB (USB) mode should be used.

Assembled kit: The kit will be by default, assembled for operation from a 12V supply. If you prefer it to be built for 9V supply operation, please write a note in the customer notes/comments field at the checkout. NOTE: Assembled kits are built to order, the waiting list is published here https://www.qrp-labs.com/qcxmini/assembled.html - we ship around 50 per week so, if you are ordering an Assembled radio, please accept some waiting time based on this; if you need it urgently then please contact us about it.

The Optional enclosure is black anodized extruded aluminium, very sturdy and elegant. The enclosure size is 92 x 63 x 25mm without protrusions. The front and rear panels are drilled and cut to match the QMX PCB with laser-etched lettering. The enclosure includes four self-adhesive feet.

• Band versions: 80, 60, 40, 30 and 20m, OR 60, 40, 30, 20, 17 and 15m, OR 20, 17, 15, 12, 11 and 10m
  
• CW, Digi and SSB (USB/LSB) modes
• All features of QCX-mini (VFO A/B/Split, RIT, Message and frequency memories, beacon, keyer)
  
• 3-5W output at 12V supply (can be built for 4-5W at 9V supply)
• SWR bridge built in
  
• Single signal transmission (zero unwanted sideband, zero residual carrier, zero intermodulation distortion)
• Solid-state band switching and transmit/receive switching under CAT control
• High performance embedded SDR SSB receiver with 60-70dB of unwanted sideband cancellation
• Built-in 24-bit 48ksps USB sound card
• Built-in USB Virtual COM Serial port for CAT control
• Si5351A Synthesized VFO with 25MHz TCXO as standard
• Easy to build single-board design, Professional quality 6-layer, through-hole plated, silk-screen printed PCBs
• All SMD components factory assembled
• Connectors: 2.1mm power barrel connector, USB-C (for audio and CAT control), BNC RF input/output
• Built-in test signal generator and testing tools
• Switched mode regulators
• GPS interface for frequency calibration, real time clock and location (internal WSPR beacon)
• IQ output mode for use with SDR software
  
• Receive current 80mA, Transmit current 1.0-1.1A for 5W output with 9V supply (around 0.7A for 5W with 12V supply).
• Optional aluminium extruded cut/drilled/laser-etched black anodized enclosure

Full details, see main QRP Labs QMX page. 

SMPS PCBs are also available separately, CLICK HERE.