Tag Archives: Ham Radio Kits

The new QRP Labs QDX 4-band 5 watt digital transceiver kit

Many thanks to Pete  (WB9FLW) who shares the following information about the new QDX transceiver from QRP Labs:

The “QDX” (QRP Labs Digital Xcvr): a feature-packed, high performance, four-band (80, 40, 30, 20m) 5W Digi-modes transceiver kit, including embedded SDR receiver, 24-bit 48 ksps USB sound card, CAT control, synthesized VFO with TCXO reference. QDX transmits a SINGLE SIGNAL, it is not an SSB modulator with associated unwanted sideband and residual carrier, or intermodulation due to amplifier non-linearity. QDX outputs a pure single signal.

The Optional enclosure is black anodized extruded aluminium, very sturdy and elegant. The enclosure size is 89 x 63 x 25mm without protrusions. The front and rear panels are drilled and cut to match the QDX PCB with laser-etched lettering. The enclosure includes four self-adhesive feet.

List of features: 

    • Four bands 80, 40, 30 and 20m
    • 5W output at 9V supply (can be built for 4-5W at 12-13V supply)
    • 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 double-sided, through-hole plated, silk-screen printed PCBs
    • All SMD components factory assembled
    • Connectors: 2.1mm power barrel connector, USB B (for audio and CAT control), BNC RF input/output
    • Built-in test signal generator and testing tools
    • Receive current 100mA, Transmit current 1.0-1.1A for 5W output with 9V supply (around 0.7A for 5W with 13V supply).
    • Optional aluminium extruded cut/drilled/laser-etched black anodized enclosure

Full details, see main QRP Labs QDX page.

Video tour of the QDX

Click here to view on YouTube.

Absolutely amazing! I’m not sure how Hans is able to innovate at the pace he does, but I think we’re all better for it. This will be a big seller for those who’ve been looking for a high performance QRP digital mode transceiver.

Thanks for the tip, Pete!

Click here to check out the QDX at QRP Labs.

QRP Labs projects QCX-Mini CW Transceiver Kit availability in December 2020

I’m not quite sure how Hans Summers at QRP Labs has the time to innovate at the pace he does–especially during a global pandemic–but he believes he will have the new QCX-Mini CW QRP transceiver available for purchase in December 2020.

Hans shared the following message via the QRP Labs Groups.io page (click here for the full message):

Hi all

Quite a lot of people have been asking about QCX-mini.

QCX-mini manufacturing has slipped a couple of weeks longer than my estimated “4 weeks”. But all is going well now…

[…]Latest problem is apparently my 5-in-1 top PCB design… normally PCBs are panelized and SMD’d in a set of 6 (or more) like that, then separated later. But the top PCB design is such that the amount of cut away material is too much to be able to break apart the boards without damage. So the factory had to come up with a different method for manufacturing it. I tried to understand what they are doing but I gave up, anyway in reliably assured all is well.

The 1000 enclosures are all finished, cut, CNC’ed, drilled, laser etch printed, packed.

Current estimate is that the PCB assembly (SMD soldering) will be completed on 17-Nov-2020. It’s the last step in the manufacturing process, everything else is done… then the boards will ship to me.

So, still on track for 1,000 Christmas stocking goodies.

73 Hans G0UPL
http://qrp-labs.com

Although I look at this kit and think, “yeah, like I need another portable QRP transceiver!” I’m nearly 100% certain I’ll buy it.

For one thing, I love building kits and am very happy to see that the surface mount components will be pre-populated.

I purchased the QCX+ and, indeed, plan to review the build and transceiver for RadCom. I’ve almost been “savoring” this build for a nice stretch of cold winter evenings.

Frankly I’ll buy and build the QCX-Mini because I love supporting mom and pop innovators here in our ham radio world.

Click here to check out QCX-Mini updates at QRP Labs. Of course, we’ll post an update when the QCX-Mini is available to order.

New Kit: The QRPometer from The Four State QRP Group

This meter sounds like a fun and useful project. Purchase one here–all proceeds benefit OzarkCon! Details below:

(Source: Terry, WAØITP with The Four State QRP Group, via QRP-L)

The Four State QRP Group is pleased to announce a new kit, the QRPometer, a sensitive and accurate power/swr meter designed by David Cripe, NMØS.   Complete specifications, assembly manual, and ordering information can be found here  ttp://www.wa0itp.com/qrpom.html
PayPal is accepted.

The range of accurate power  easurement extends down to a low 100 milliwatts.  This kit was conceived to fill a need within the hobby for an inexpensive, highly accurate RF power and VSWR meter for QRP power levels.  With it’s large digital display it makes a very useful addition to your shack.

The QRPometer uses simple analog signal-processing circuitry to provide a set of essential measurement features not previously available in a single unit. High quality, double sided,
printed circuit board construction is used, with solder mask and silk screened component reference designators.

All components are  through-hole for easy assembly. NO toroids are required, and all controls  and jacks are PCB mounted. The QRPometer can be constructed by beginners as well as experienced builders. Construction time is approximately 3 hours, depending on experience level. The only equipment required for calibration is a digital voltmeter, and a QRP transmitter..

All proceeds  go to fund OzarkCon.  As always, thank you for supporting the Four State QRP Group.  http://www.4sqrp.com/

UPDATE: See comments–first run of these kits sold out within 27 hours! More to come later.