Qdx hans. I had not seen that mention of a version 1. QDX Simple one page instruction sheet for firmware upgrade 1 - 16 of 16 1 Live from Turkey, Hans Summers, G0UPL, stays up late to talk with the Overlook Mountain Amateur Radio Club about the journey he took developing the QDX XCVR Kit. com Kits QMX+ 160-6m multi-mode transceiver QMX multi-band transceiver kit QCX-mini 5W CW transceiver kit QCX+ 5W CW transceiver kit QDX Digital Transceiver QDX-M 5W Digital Transceiver Ultimate3/3S QRSS/WSPR kit U4B - Balloon tracker 50W Amp for QCX Ultimate relay-switched LPF kit GPS receiver kit QLG2 GPS receiver kit QLG3 10W HF Linear PA Low Pass Filter Band Pass Filter Si5351A Inside QDX is a single PCB with three low pass filters, filter switching, power amplifier components, band pass filtering and a trifilar receiver input transformer. Once again Bob did an outstanding job interviewing the FDIM participants. The Group moderators are responsible for maintaining their community and can address these issues. QDX-M uses the same firmware as QDX, the only hardware difference is that all band-switching components have been deleted. com https://www. So far in testing the 10/11/12m version of the kit I have found that there is a noticeable improvement in Receive QMX portable CW ops with Hannes TA4/DL9SCO and Hans TA4/G0UPL 8. This video covers the build of this awesome little four-band 5W digital transceiver designed by Hans Summers. g. com Download The SSB firmware download is firmware version 1_01_009 and can be downloaded by clicking the link below. (reconvalescent) Hans gives a top talk (and needs to drink more!) Hans G0UPL was presented with the CW Ops award "in recognition of his outstanding achievement in advancing the art of CW". io? This cannot be undone. Date 1 - 20 of 20 QRP Labs QMX 5-band CW/digital/SSB transceiver QDX new firmware 1_01 1 - 12 of 12 1 Home Messages Hashtags Wiki BITX20@groups. buymeacoffee. QDX HF Band Confiuration screen #qdx Date 1 - 20 of 44 QDX PA upgrade A friend had noted that the QDX wasn’t perfectly generating some of the smaller frequency shifts used in some FSK modes. Thank you for the quick replies. QDX in its beautiful black-anodized extruded aluminium enclosure, CNC machined to suit the QDX and with durable laser-etched lettering: These are screenshots of the built-in terminal applications, that may be used for testing, investigating, learning and configuration - but are not needed for operation of the transceiver. News of the new product release broke last week sending QRP Labs fans into a frenzy on the QRP L abs Google group. Also, even harmonics are largely suppressed thanks to the characteristics inherent in the push-pull design of the QDX's PA. Hans has created a cult following, with an assortment of kits, and assembled bargains of fun! Dec 8, 2021 · The QDX is the creation of [Hans Summers] who is well known for producing affordable high performance amateur radio kits that are focused on low power transmission, called “QRP” in ham radio Aug 2, 2025 · The QRP-Labs QDX is a five band, five watt, digital mode HF transceiver. I will do that. It is a combination of the QCX Mini and the QDX. Hans has acknowledged the problem and is working on a firmware update, but I decided to look into this. io QRPLabs Topics Date Date 1 - 4 of 4 I will try to offer a high-bands QDX for sale in hopefully about 2-3 weeks' time based on this work, when testing is completed and I have imported the necessary toroids and capacitors. I experienced no issues during construction, just follow the assembly manual. Hans and Evan. io Topics QDX & FLDIGI Setup Date 1 - 6 of 6 Can fix QDX Windows USB enumeration problem? #qdx Hans has done it again - super easy once you see how its done a work of art!👉 QDX: https://shop. These surface mount devices with small Attention QDX Linux users #qdx QDX WSPR TCXO Reference Frequency Adjustment/Alignment/Offset #wspr #qdx #tcxo Signal Synthesizer from QDX Question for Hans Are you sure you wish to delete this message from the message archives of QRPLabs@groups. . They’re known primarily for the QCX and its variant, the QCX+ and QCX Mini. But I finally found a configuration that I can live with. But today, Hans released a new product that’s sure to shake up the QRP Digital world: The QDX, a four band QRP digital … Continue reading Dec 30, 2025 · In this episode we meet Hans Summers, founder of QRP Labs, the makers of the wildly popular QCX, QDX and other great portable HF QRP radios. be/V-pqN7NMT2w 73 Hans G0UPL http://qrp-labs. io Topics #qdx #firmware QDX firmware release 1_03 Date 1 - 15 of 15 Thank you for the update Hans, my mid band kit has the black cores, I just need to finish another project and then I’ll get started with it. I noticed that you also tided up the formatting in a couple of places, where the images were obscuring the text. It was a great honour to receive this award from such a prestigious association in ham radio, for the contribution to CW made by the QCX 5W CW Transceiver kit design. io Topics #qdx QDX firmware 1_02 Date 1 - 20 of 21 Hans writes on his website " QDX is suitable only for single tone FSK modes, which covers the majority of digital modes in use today. I was very cautious probing the QDX. FT8 looked good: As on QDX, the QMX appears as a high performance 24-bit stereo USB soundcard as well as Virtual COM Serial port for CAT. 4K views 2 years ago Date 1 - 15 of 15 QDX as SDR can you use a qcx 50 watt amp for qdx? Reviews For: QRP Labs QDX kit Category: QRP Radios (5 watts or less) eMail Subscription Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. As usual, Hans has created a very clever bit of kit for the homebrew-minded ham. In this interview, the amazing Hans Summers talks about his latest QRP Labs kit, the QMX. Built-in QDX Transmit Test? Previous Topic Next Topic Date 1 - 16 of 16 Firmware update #QMX #QDX #QDX-M output transformers (WTST and RWTST) documentation. Recommended. I wanted to ask Hans at Hamvention if I could obtain parts to convert it but he was really really busy. Hans has created a cult following, with an assortment of kits, and assembled bargains of fun! Many of you know this, and have his gear. Report to Moderators I think this message isn't appropriate for our group. com/qdx&tracking=7LYXwbHBNxhEQ7Iv9👉 50w Amp: ht Home Messages Hashtags ctrl + shift + ? for shortcuts · · · · © 2025 Groups. QRPLabs@groups. Marvelous, many things like that. Price: $65 (assembly option: $40). Used for film scanning and image processing. Yeah, I know - dated, but the best OS Microsoft ever put out. I have a QDX-M that I purchased used and appears to be for JT65 frequencies. First I used my “Signalhound USB-SA44B” spectrum analyzer, in the modulation analysis mode. But that is only part of the story. It's highly efficient, easy to operate, and configurable for bands from 2200 meter through 4 meter. RTTY, Olivia and more. Part 2: • The QRP-Labs QDX Digital Transceiver Kit, Hans Summers has done it again with an amazing n ew product for kit bui lders, QRP and digital enthusiasts with the n ew QDX transceiver. com/g0upl More All Messages By This Member Reinhold #86761 Watched. Firmware 1_01_009 SSB Beta DOWNLOAD The full version history of changes during the SSB beta testing phase Home Messages Hashtags QRPLabs@groups. In particular note that the PIN diode switching does not work (or does not work well enough) on 2200m, 630m, and 160m bands. https://youtu. by Matt (W6CSN) The Radio The QMX by QRP Labs is a five band, multi-mode radio introduced by Hans Summers G0UPL at FDIM in 2023. For my QDX build I added a rechargeable LiPo battery pack,… QDX 30m/20m interesting local oscillator feature #qdx We all know QRP Labs, purveyors of QRP kits, headed by QRP Hall of Fame member Hans Summers. Hans tells about his journey through the design process and all details on his latest creation the QMX multi-band transceiver. Magnificent. We know QDX is designed as a transceiver driven by a computer to work. Click here for more information. But today, Hans released a new product that’s sure to shake up the QRP Digital world: The QDX, a four band QRP digital transceiver that offers higher performance and greater features than competitor’s single band rigs, and at a lower price. Share this: Ham Radio Kits Hans Summers Kits QDX QRP Labs QRP Labs QDX Articles, Guest Posts, New Products, News, QRP, QRP Radios #qmx Previous Topic Next Topic Date 1 - 20 of 23 Hans to Hamvention 2023? My Digital HF Field Kit… by Rand (W7UDT) Thomas & the gang… this is (de) Rand W7UDT The QRP Labs QDX is yet another, brilliant creation from genius Hans Summers. So the QMX was the purchase to be. io web and app experience. The M is for Marriage. The installation procedure is the same as for any other QMX firmware version (refer to manual). Mid November 2023 I put some time in building the QDX transceiver, the QRP version for WSJT-X FT4 and FT8 for 80, 40 and 20m which you can get from Hans Summers’ QRP labs webshop. QDX transmits a SINGLE SIGNAL, it is not an SSB modulator with associated unwanted sideband Oct 6, 2025 · The QRP Labs QDX is yet another, brilliant creation from genius Hans Summers. QDX Terminal Emulator Setting-up PuTTY #qdx 1 - 11 of 11 1 Previous Topic Next Topic QRPLabs@groups. QDX transmits a SINGLE SIGNAL, it is not an SSB modulator with associated unwanted sideband and residual carrier, or intermodulation due to QDX-M monoband 5W Digi transceiver The "QDX-M" (QRP Labs Digital Xcvr-Monoband): a feature-packed, high performance, SINGLE BAND Digi-modes transceiver kit, including embedded SDR receiver, 24-bit 48 ksps USB sound . This is a known problem, you cannot tnable the Japanese band on a Hi Band QDX. Several years ago Hans answered he would modify the firmware but this has not been done. So it means you always have a computer available along with QDX. Hopefully Hans can see this. Designing a modern digi-mode transceiver Development of the QDX 4-band QRP kit QDX Rev 4 PCB - SMPS for PIN diode forward bias, and more According to Hans G0UPL, the QDX uses the 40m LP filter when operating on 60 meters. I have a Windows 10 laptop and a WinXP desktop. An initial batch of 450 units was released on at 1800Z on 11 October with all units sold in 12 minutes! Wow, that’s popular! The initial Home Messages Hashtags QRPLabs@groups. The microcontroller has more USB endpoints so it should be possible to implement a second independent Virtual COM ports to connect a terminal at the same time. Hans explains the M: QMX. The QMX is the next logical step in the radio development journey at QRP Labs, bringing together the innovative approach to FSK modes like FT8 from the QDX and the CW performance of the QCX series. qrp-labs. New kit: QDX - QRP Labs Digital Transceiver 1 - 20 of 121 1 2 3 4 5 The "QDX" (Q RP Labs D igital X cvr): a feature-packed, high performance, five-band (80, 60, 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. This may lead me to get an RPi and display I suspect. This includes everything in WSJT-X, JS8Call, some fldigi modes e. We are pleased to announce several enhancements to the Groups. io Topics New kit: QDX - Digital Transceiver by QRP Labs Date 1 - 20 of 28 The talk is about QDX design. io Topics QDX reviewed in ARRL's March QST edition Date 1 - 3 of 3 Along with that Hans at QRPLabs made 4 updates to the original QDX software that also muddied the water. Definitely for anyone QDX interested. This simplifies the construction but of course makes it mono-band. Oct 9, 2021 · The "QDX" (Q RP Labs D igital X cvr): a feature-packed, high performance, five-band (80, 60, 40, 30 and 20m) or six high-HF band (20, 17, 15, 12, 11 and 10m) 5W Digi-modes transceiver kit, including embedded SDR receiver, 24-bit 48 ksps USB sound card, CAT control, synthesized VFO with TCXO reference. Re-calibration is NOT necessary after installing a firmware update. Merger. 01c. qrp-labs. Hans, will you be offering a kit of components to convert a low-band QDX kit for high-band use? Note that while QDX firmware can now operate on any amateur band from 2200m to 4m, plus 11m CB, the hardware modifications required to do so are not yet available as officially supported changes. dka3, mdppx, q7syq, 8zat, pwhj, pnbhy, adzhy, dqvd64, cvanl, ddytj,