DEEPELEC specializes in open-source based handheld vector network analyzers and high-sensitivity DSP radio receivers for electronics enthusiasts.
DEEPELEC, operated by Hangzhou Minghong Electronic Technology Co., Ltd., designs and manufactures affordable radio frequency testing equipment and digital signal processing radios. The brand is widely known in the amateur radio community for its handheld Vector Network Analyzers (VNA), including the DeepVNA 101 and NanoVNA-F series, which provide portable antenna analysis capabilities.
Additionally, DEEPELEC produces multi-band DSP receivers like the DP-666, offering high sensitivity across FM, MW, SW, and LW bands. The company actively supports the open-source community, providing firmware updates and hardware based on popular open projects.
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Access the CAL menu and press RESET. Connect the OPEN, SHORT, and LOAD calibration standards to Port 1 sequentially, pressing the specific button on the screen for each step. Once complete, save the calibration data to one of the available save slots (0-4).
Download the 'update.bin' file from the official website. Connect the device to a PC via USB while holding the menu button to enter bootloader mode. The device will appear as a disk drive; copy the firmware file into this drive to update.
If the speaker is silent but headphones work, the issue may be a stuck contact in the headphone jack. Try inserting and removing the headphone plug several times to release the internal pin spring mechanism.
Official drivers and recommended PC software (such as NanoVNA-Saver) are linked on the DEEPELEC support page or the associated GitHub repositories.