June 2022 – sales for (tr)uSDX options (kit & assembled, with limited performance) are restarted. Our report with current solutions to improve PA stage efficiency / other issues and also the official company communication on this matter, available HERE. All new kits & assembled units further delivered have the correct C0G/NP0-100V capacitors installed, this issue has been corrected already.
We will provide a free SMT populated RF board with any new order (any products ordered on our website) placed on our website, for those already existing (tr)uSDX customers (lots B1-B6), that are requesting the board and want to fix the issues at home using the guide above.
From original creators of (tr)uSDX, Guido-PE1NNZ & Manuel-DL2MAN, we are offering 2 options for this beautiful 5-band, pocket-size, multimode QRP SDR TRx, under license CC BY-ND 4.0 (for HW&SW) and CC-BY-SA (for enclosure). Technical support is available ONLY from DL2MAN’s webpage and forum, use those resources with confidence. Accessories available below. Very important: tap (cut threads) “lower wall” and “upper wall” before inserting the M3 screws in, otherwise the case walls might crack because of the pressure of the M3 screws.
➡️ Buying options?
☑️ complete kit: SMD pre-assembled PCBs (all SMD parts soldered) plus all parts needed to finish & assemble the transceiver, 3D printed case included (“orange-lion” color case included)
☑️ assembled: fully functional transceiver, ready for plug-and-play, color case at your choice, army-green or orange-lion (please specify color in order details & your call-sign to be displayed on the radio screen)
➡️ Do you need accesories?
☑️ 50Ω quality SMA-male to BNC-female adapter (CARF-7) click HERE
☑️ complete “orange-lion” 3D printed case (premium PET-G material, 4pcs. x black anodized M3x14mm screws included) click HERE
☑️ complete “green-army” 3D printed case (premium PET-G material, 4pcs. x black anodized M3x14mm screws included) click HERE
☑️ 3D printed, external battery case, 3pcs. x 14500 battery size (premium PET-G material, all accessories included) click HERE
☑️ DC power supply cable, 40cm long, ROW-CA10 (Lumberg OD 3.4/ ID 1.4mm DC jack installed, 0.7mm red/black wire) click HERE
✔️ how to order: from stock
✔️ payment methods: credit card / PayPal
✔️ shipping method: DHL Express, worldwide, fast delivery & tracking no. included
➡️ Start of delivery ?
☑️ B7 (batch of ~100pcs. kits) sale is on-going, bootloader installed, correct C0G/NP0-100Vcapacitors installed by manufacturer, manufacturing soldering issues / poor soldering corrected, visual inspection performed, semiconductors inspection performed. Estimated delivery: 13th of June, 2022
How can you support the developers & give credit for their exceptional work on (tr)uSDX?
roWaves kits / assembled modules can not yet meet the following parameters (in terms of PA stage efficiency) but the parameters obtained are very close to the ones requested by DL2MAN requirements, see HERE our report.
Conditions / comments
RF Power Level
@5Vdc (e.g. USB powered)
PA stage efficiency
on all bands
and even better
Rx Noise Level
no antenna, or even better
high-efficiency ( min. 80%) class-E
Voltage supply range
incl. USB emergency power supply
@13.8Vdc (80% eff.)
on-board PTT key (emergency key)
23mm integrated speaker
on-board, no need for external mic.
L x l X H
orange - lion
army - green
Pre- assembed PCBs walkthrough, part 1:
Complete Assembly Instructions, part 2:
– latest release! -> solutions and technical issues assessment file (roWaves)click here
Q: What is the status of the efficiency issue on roWaves (tr)uSDX kits?
A: Solutions to improve the PA stage efficiency and other issues are realeased to the customers. Click here to read it.
Q: What parts does contain the (tr)uSDX KIT that roWaves delivers?
A: the kit contains all parts needed to assemble and use the radio (case included). Boot-loader installed on any kit or assembled unit. Please see below a list of the parts you will find in the kit delivered to you.
*Please note that exact part no. might change based on parts availability at the manufacturer. All changes will be seen/update in the table below.
please choose one of our colleagues below, to request the information you need, or send us an email to firstname.lastname@example.org. You can also use the contact form on the "Contact" page. We are available ONLY Monday to Friday, from 9-17h. Thank you!