回答

gbrio It does not need an external antenna, but if you want to increase the sensitivity and know how to solder you can follow this thread. Sensitivity doubles. Look for this tread on RCGROUPS Miniature-cheap-Lantian-2-4ghz-band-scanner

役に立つ (1)
提出
回答 (2)

gbrio No. However, it is better to clean and lubricate the guides again, the lubricant they use is bad.

役に立つ (0)
提出
回答 (9)