Uploaded February 2023 | Updated September 2026, 1 hour ago
QDX digital transceiver from the QRP Labs is a unique phenomena in the QRP community of Ham Radio. Featuring surprisingly high specs on receive, it puts out a clean, spurious-free 5W on transmit. It’s fully digital both on receive and transmit and can run all FSK modes (based on frequency shift, like FT8/FT4, RTTY and others, but no PSK31 though, which is based on the phase shift). The decoding power is such that this little radio easily decodes the weakest signals on HF bands. Watching all these weak signals on the waterfall of my WSJT-X app, I was curious if I could make any contact with those DX (distant) stations across the world? What I’ve found out experimenting on 20, 40 and 60m bands surprised me, and its in the video!
The equipment used was the QDX Digital transceiver from QRP-Labs, V.3, link to their site : qrp-labs.com/qdx.html
My full review of this transceiver is here:
youtu.be/kc5lz2fycys
The very first Version 1 was reviewed, the current version on the market is V.5, but it’s the versions of the PCB with some schematic changes, but not of the radio itself. Version 1 still works as nice as Version 5.
The tiny Power/SWR meter is featured in my other video:
youtu.be/iXXdEaK7opU
My laptop PC is a CHUWI Minibook.
I hope, this short video will encourage you to try your own luck in hunting real DX stations on the HF bands running the QDX Digital transceiver!
I’d love your comments on your success in the comments section! Please consider subscribing, this will help this channel grow !
Have Fun! 72! 73! @Linas_LY2H
QDX digital transceiver from the QRP Labs is a unique phenomena in the QRP community of Ham Radio. Featuring surprisingly high specs on receive, it puts out a clean, spurious-free 5W on transmit. It’s fully digital both on receive and transmit and can run all FSK modes (based on frequency shift, like FT8/FT4, RTTY and others, but no PSK31 though, which is based on the phase shift). The decoding power is such that this little radio easily decodes the weakest signals on HF bands. Watching all these weak signals on the waterfall of my WSJT-X app, I was curious if I could make any contact with those DX (distant) stations across the world? What I’ve found out experimenting on 20, 40 and 60m bands surprised me, and its in the video!
The equipment used was the QDX Digital transceiver from QRP-Labs, V.3, link to their site : qrp-labs.com/qdx.html
My full review of this transceiver is here:
youtu.be/kc5lz2fycys
The very first Version 1 was reviewed, the current version on the market is V.5, but it’s the versions of the PCB with some schematic changes, but not of the radio itself. Version 1 still works as nice as Version 5.
The tiny Power/SWR meter is featured in my other video:
youtu.be/iXXdEaK7opU
My laptop PC is a CHUWI Minibook.
I hope, this short video will encourage you to try your own luck in hunting real DX stations on the HF bands running the QDX Digital transceiver!
I’d love your comments on your success in the comments section! Please consider subscribing, this will help this channel grow !
Have Fun! 72! 73! @Linas_LY2H
