When testing the B205mini, we found that the SMA connector was tightened to the
most tight, but there may be no signal or the signal is weak.
Of course not always. Sometimes it is better to loosen the SMA connector a
little.
In short, the reception effect requires repeated adjustment of the sma
connector. Even after the sma is tightened, applying an external force on the
plug position may change the quality of the received signal.
There is no similar problem on other types of USRP boards. It is determined
that it is not an antenna problem.
We used B210 and B205mini for comparison. See the attachment for video results.
“B205-antenna.mp4” & “B210-antenna.mp4”
We used another B205mini for comparison. The phenomenon is the same. See the
attachment for video results. “B205-DuPont line.mp4” & “B205-DuPont
line-Acrylic.mp4”
We are not sure whether this phenomenon is caused by the absence of a shielded
enclosure. But we don't think it will have such a big impact.
I want to ask if there is any way to solve this problem.
从网易163邮箱发来的超大附件
B205-antenna.mp4 (3.61M, 2022年11月25日 13:35 到期)
在线预览 | 下载
B205-DuPont line.mp4 (2.75M, 2022年11月25日 13:35 到期)
在线预览 | 下载
B205-DuPont line-Acrylic.mp4 (17.49M, 2022年11月25日 13:35 到期)
在线预览 | 下载
B210-antenna.mp4 (4.56M, 2022年11月25日 13:35 到期)
在线预览 | 下载
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