Tag Archives: QRP Labs QCX+

Allen’s 22.5 ounce, super affordable, QCX field kit

Many thanks to Allen (N4NN) who writes:

Hello Thomas,

Enjoyed your last video with the QCX-mini as it reminded me of my first portable setup.

Last August, I celebrated my fifth year as a ham and at 74 I’m still able to do some backpacking. This was my first attempt at taking a radio along. The QCX-original was the only model at the time and sold for $49 + shipping. The case is a dollar store pencil box with the radio mounted on stand-offs.

I changed the antenna you see to K6ARK EFHW setup with counterpoise. No coax. I used the on-board key. The throw line was arbor line much like yours and my weight was the tent peg pouch filled with rocks from the camp site. This was my food bag hanging setup. Under $100 for everything.

Before I used it much I discovered POTA from you and purchased a KX2. Haven’t camped much lately but I have activated 70 of Georgia’s 203 parks and having a ball!

[I should note that a] few years back when I made the kit, prices were lower so it may be more difficult to hit that $100 mark. For example, a QCX-mini (no case) runs $57.79 and the QRPGuys EFHW kit is now $30. Adam’s (K6ARK) EFHW kit I changed to is only $20. The “water resistant “ pencil case is still $1! I was more interested in weight rather than cost and as shown the weight is 22.5 ounces.

Thanks Thomas and wish you and yours a Merry Christmas and peace and good health in the coming year.



I love it, Allen! Pure QRP fun on a shoestring budget. Not bad at all! You make a good point here that many kits can be built into a waterproof (or in your case a water resistant) case. I’ve often wanted to do this myself and may very well one day! 

Thank you for sharing!

QCX+ QRP tranceiver video by Hans

Many thanks to Pete (WB9FLW) who shares the following video from QRP Labs with a detailed overview of the new QCX+ transceiver:

Click here to view on YouTube.

QRP Labs new QCX+ QRP CW/WSPR transceiver kit

Many thanks to Pete (WB9FLW) who writes:

Hi Thomas,

QRP Labs has just announced the QCX+ which as the name implies is an upgraded version of the very popular QCX line of transceivers

To date almost 10,000 kits have been sold, here’s a brief overview of the the differences and new features made to this popular Transceiver.

The QCX+ is the almost same circuit as the QCX, with two very minor changes. QCX+ runs the same firmware as QCX, and has identical operational and performance characteristics. QCX/QCX+ firmware will always be compatible with both the QCX and QCX+. The evolution of QCX to QCX+ provides several improved features in physical layout, as follows:

1) Physical layout of controls and connectors

2) Optional enclosure

3) Additional and changed connectors

4) More spacious PCB, more than double the board area, with less densely packed components, and more test/modification points

5) Improved heatsinking

6) Three minor circuit changes

7) No microswitch key

Price has gone up slightly to $55, still no other QRP Transceiver on the market today comes close to the features offered by the QCX+ at this price point.

More Info:


Thank you so much Pete! You’re an enabler! Since I’m not at Hamvention right now, those radio bucks are burning a hole in my pocket. The QCX+ looks like a fun transceiver to build! Thanks for the tip.