疫情延燒！PLG職籃開第一槍 禁止球員合照、簽名
體育中心／魏君程報導
▲PLG職籃發布公告，表示球員將暫時婉拒賽前與賽後的簽名與合照行為。（圖／翻攝自PLG臉書）
本土疫情持續升溫！中央流行疫情指揮中心今（15）日公布，國內新增1209例本土確診個案，75例境外移入。PLG職籃今日也發布公告，表示職員、球員將暫時婉拒賽前與賽後的簽名與合照行為，並希望球迷保持社交距離，以確保自身的健康安全。
PLG職籃公告如下：
因應疫情變化，PLG 聯盟與各球團隊職員、球員將暫時婉拒賽前與賽後的簽名與合照行為，也請所有球迷維持社交安全距離，照顧球員身體健康，也照顧自己的身體健康，同時也請尚未下載「臺灣社交距離」App的球迷能夠盡快下載，幫助疫調更為精準確實，自我防疫，從你我做起！
The log-periodic antenna as known as LPDA is a wideband directional antenna that provides gain and directivity combined over a wide band of frequencies.
Both Log-Periodic Antennas and Yagi antennas are high gain directional antennas. The main difference between these antennas is that Log-Periodic Antennas support wider frequency bandwidths and are physically much larger than Yagi antennas.
The log-periodic dipole array typical VSWR is 2:1 and operates over a much wider bandwidth and will have a lower gain for an equivalent number of elements.
In terms of its specification, a typical log periodic antenna might provide between 3 and 6 dB gain over dipole for a bandwidth of 2:1 while retaining a VSWR level of better than 1.3:1. With this level of performance, it is ideal for many applications, although a log-periodic antenna will be much larger than a Yagi of an equivalent gain.
EMC/EMI pre-compliance test antenna.
Very high gain over the full frequency range.
Meets latest EMC standards up to 7GHz.
Suitable even for immunity measurements
以下內文出自: https://www.setn.com/News.aspx?NewsID=1101021
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