https://hamradiotransceiver.biz Mon, 06 Apr 2026 23:23:57 +0000 en-CA hourly 1 https://wordpress.org/?v=4.1.1 https://hamradiotransceiver.biz/2026/03/usdx-trusdx-5-band-multimode-qrp-transceiver-with-battery-pack-holder/ https://hamradiotransceiver.biz/2026/03/usdx-trusdx-5-band-multimode-qrp-transceiver-with-battery-pack-holder/#comments Sun, 29 Mar 2026 20:17:59 +0000 https://hamradiotransceiver.biz/2026/03/usdx-trusdx-5-band-multimode-qrp-transceiver-with-battery-pack-holder/ read more]]>





USDX USDR SDR (tr)uSDX 5-band Multimode QRP transceiver by DL2MAN and PE1NNZ Classic Fully functional transceiver with battery holder. Batteries are Not Included. You get what’s in the pictures.

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(tr)uSDX HF Ham Radio QRP CW Transceiver Full Kits by PE1NNZ and DL2MAN 5bands. Not: This link : It is the LO bands, not high bands, not classic bands. Hi and Classic Band by DL2MAN and PE1NNZ. TruSDX only case /box/shell by PE1NNZ and DL2MAN. Battery Case By David DL1DN. Battery Case By DL2MAN 18650. 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. 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. Only the kits, no case, you need to assemble it yourself. Assembled one with 3D printed case (orange), has “raised” lettering. Assembled one with 3D printed case (Army Green). Assembled one with 3D printed case (Blue), has “raised” lettering. Assembled one with 3D printed case (Light Green), has “raised” lettering. Assembled Grey(Industrial Grey). Assembled one with 3D printed case. 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 Enter the serial number (the serial number on the anti-static bag) and download the firmware. 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. Restart 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. 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). Thanks to the creators for the reactive Commons License. Luckily we became an “official” commercial Supplier, tested hardware qualified. (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. Type 1:Kit no case(only kit, no case). Type 2 :Assembled Orange. Assembled one with 3D printed case (solid orange), Plug and play. Type 3 :Assembled Army Green. 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. Assembled one with 3D printed case (light green), Plug and play. Type 6 :Assembled Grey(Industrial Grey). The (tr)uSDX is a 5-Band / Mulitmode QRP Transceiver in Pocket Format (90x60x30mm – 140g). Right now it covers 80 /60/40/30/20m and in Future there will be support for 17/15/12/10m as well. 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. It is supplied with OnBoard SWR Bridge and Voltage/Current measurement Hardware, to help in tuning and operation. 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. All major credit cards. Please make sure your address is correct before you pay and can be delivered. I will actively solve the problem for you. Finally, I wish you a happy shopping, best wishes. This item is in the category “Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transceivers”. The seller is “uellyqh” and is located in this country: CN. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.

• Type: Assembled Grey
• Brand: MALAHIT

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Kit no case: Only the kits, no case, you need to assemble it yourself. Assembled with case: Assembled one with 3D printed case (solid orange), ORANGE 3D printed case has “raised” lettering? Assembled with case Army Green: Assembled one with 3D printed case (Army Green), GREEN 3D printed case does not have “raised” lettering. Dear friends, please note your radio “callsign” when you order the Assembled one. Kit: If you need me to program your callsign, you also leave your callsign and I will program it for you. Thanks to the creators for the reactive Commons License. Luckily we became an “official” commercial Supplier, tested hardware qualified. (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 2 types. Note:The main board has bootloader. Type 1:Kit no case(only kit, no case). Assembled one with 3D printed case (solid orange), Plug and play. Assembled with case Army Green. Assembled one with 3D printed case (Army Green), Plug and play. The (tr)uSDX is a 5-Band / Mulitmode QRP Transceiver in Pocket Format (90x60x30mm – 140g). Right now it covers 80 /60/40/30/20m and in Future there will be support for 17/15/12/10m as well. 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. It is supplied with OnBoard SWR Bridge and Voltage/Current measurement Hardware, to help in tuning and operation. This item is in the category “Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transceivers”. The seller is “hison-818″ and is located in this country: CN. This item can be shipped worldwide.

• Type: Assembled with case
• Brand: Unbranded

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