Current mainboard:1.2 version PCB
(tr)uSDX HF Ham Radio QRP CW Transceiver Full Kits by PE1NNZ and DL2MAN 5bands
Note: This link : It is the LO bands,not high bands ,not classic bands.
Description
Hi and Classic Band by DL2MAN and PE1NNZ : https://www.ebay.com/itm/134234782803
tr)uSDX only case /box/shell by PE1NNZ and DL2MAN : https://www.ebay.com/itm/134065647309
Battery Case By David DL1DN： https://www.ebay.com/itm/134165574147
Battery Case By DL2MAN 18650: https://www.ebay.com/itm/134239626280
Shipping time: After you place an order, it will be dispatched from China within 24 hours（Generally）.
Shipping method: eBay official speedpak standard logistics (countries and regions that cannot use speedpak will use 4px trackable logistics)
Dear friends, please note your radio "callsign" when you place order.
Thanks to DL2MAN and PE2NNZ for the community. We are certified sellers by DL2MAN and PE2NNZ.
All the mainboards used LT6231 OP Amp.
About Bootloader：
Mainboard have been burned the Bootloader and programed the firmware, the serial number is also in the package.(If you need to program the callsign into the firmware, please leave us a message in advance.)
The serial number is in the package.
Order Guide:
①Kits no case：
Only the kits, no case, you need to assemble it yourself.
②Assembled Orange：
Assembled one with 3D printed case (orange)，has "raised" lettering.
③Assembled Army Green：
Assembled one with 3D printed case (Army Green)，has "raised" lettering.
④Assembled Blue：
Assembled one with 3D printed case (Blue)，has "raised" lettering.
⑤Assembled Light Green ：
Assembled one with 3D printed case (Light Green)，has "raised" lettering.
⑥ Assembled Grey（Industrial Grey）
Note: The mainboard have been burned the Bootloader and programed the firmware.
Hello, if you want to reprogram/upgrade the firmware (or program your callsign to the firmware),you need to follow these steps :
①Download the firmware 
（Because eBay does not allow links other than eBay, please have friends who need to use the link, manually enter the domain name to the URL to view, thank you）
②Enter the serial number (the serial number on the anti-static bag) and download the firmware.
③ Install the USB Driver for the CH340 driver and AVR-Dudess software (if the computer prompts that the AVR-Dudess cannot be installed), please use another computer to install it.
④Restart the computer and use USB to connect the mainboard (the computer will make a ding-dong sound at this time, indicating that the CH340 driver software has been installed successfully.If not, it may be that the USB cable has no data transmission function, try to use another USB data cable).
⑤ Open the AVR-Dudess software, and then program the firmware. Please follow the position circled in the picture below, set up the software, and then program.Opening Device Manager under Windows will show the assigned COM-Port(first image below)
(tr)uSDX
Thanks to the creators for the reactive Commons License. Luckily we became an "official" commercial Supplier, tested hardware qualified.
Technical support for the kit will be available from DL2MAN’s webpage and forum.
Overview:
1.(tr)uSDX is the successor of the uSDX Project. It´s the Result of the Collaboration between PE1NNZ and DL2MAN. The design was intended as an easy to build (pre-assembled) Kit. Our store offers 3 types:
Note:The main board has bootloader.
Please note: The city of Shanghai, China is blocked, the delivery time will be 7 days longer than the estimated delivery time, thank you for your support
Type 1：Kit no case(only kit,no case)
Assembled one with 3D printed case (solid orange)，Plug and play.
(Ships in the order of the customer's order.)
Assembled one with 3D printed case (Army Green)，Plug and play.
Type 4 ：Assembled Blue
Assembled one with 3D printed case (Blue)，Plug and play.
Type 5 ：Assembled Light green
Type 6 ：Assembled Grey（Industrial Grey）
3.It is supplied with an OLED Display, onboard Mic, (tiny) onboard speaker and for improvised QSO onboard PTT Key can be used as emergency CW Key.
4.Further on, the (tr)uSDX has a (Micro)USB CAT and Programming Interface, and while it produces typically 5W @ 13,8V Power Supply, it can create 0,5W Output from 5V USB Supply alone.
5.Typically it draws 80mA on RX (with MS5351 – less with Si5351) and 500mA on TX @13,8V and typical 85% PA Efficiency.
6.It is supplied with OnBoard SWR Bridge and Voltage/Current measurement Hardware, to help in tuning and operation.
Download attachment：
1(tr)uSDX Assembly – Schematics and more:
2 (tr)uSDX Bootloader – (Initial Firmware):
3(tr)uSDX Firmware – (Working Firmware):
4(tr)uSDX Manual – how to operate it:
Payment Terms
1.PayPal.
2.All major credit cards.
3.Please make sure your address is correct before you pay and can be delivered.
Return Terms
1. If the item you receive is defective, please contact us within 7 days after receiving the goods. We will guide you to return for replacement or refund.
2. If you buy under incorrect conditions, please note that all return shipping fees should be paid by the buyer, unless the goods are DOA.
3. We reserve the right to refuse any return for the buyer (such as dislike, unsuitability) and other reasons.
Custom Duties & Taxes
1. The item price or postage does not include import duties, taxes and fees, and the above fees are paid by the buyer.
2. In order to avoid unnecessary troubles, please tell us what the value should be declared before shipment
Feedback
1. Satisfaction: If you are satisfied with the product, please leave me positive feedback and your truest language.
2. Dissatisfied: If you are dissatisfied for any reason, please do not give us neutral or negative feedback immediately. I will actively solve the problem for you.
Solution:If there is any problem with your order, please feel free to contact us. We are a responsible and reliable seller and will handle it for you as soon as possible.
Finally, I wish you a happy shopping, best wishes.