Standard Gain Horn Antenna
Standard gain horn antennas are used as calibration devices that measure the gain of other antennas.
These antennas are made up of a combination of a Waveguide to Coax Adapter and Standard Gain Horn with Waveguide Input. It is a kind of simple combination but with great care and attention to create an antenna with accurate and suitable specs.
FT-RF Standard gain horn antenna product series includes waveguide sizes WR28, WR42, WR51, WR62, WR75, WR90, WR112, WR137, WR159, WR187, WR229, WR284 and WR340, WR430, WR510, WR650, WR770, WR975, WR1150, WR1500, WR1800, WR2100, WR2300, with broadband waveguide horn antennas have frequency capabilities ranging from 320Mhz to 40 GHz depending on type and style. with the gain of 10dBi, 15dBi, 20dBi and 25dBi.
Standard Gain Horn Antenna Applications:
- - Antenna measurement
- - Radar Detection System
- - Wireless Communication
- - Spectrum Monitoring
- - Electromagnetic interference Testing (EMI test)
中華隊經典賽30人名單中,24歲的旅美小將鄭宗哲有最新動向,波士頓紅襪隊宣布,從華盛頓國民隊讓渡名單撿走鄭宗哲,但有外媒分析,他可能再度面臨遭指定讓渡(DFA)的殘酷命運。
鄭宗哲這個休賽季可說是相當顛簸,去年12月中旬遭到母隊海盜隊釋出之後輾轉多隊,先後被坦帕灣光芒、紐約大都會、華盛頓國民隊指定讓渡,7日再被波士頓紅襪隊挑走,這已經是他休賽季換的第5支球隊。
外媒分析,鄭宗哲目前仍握有一次下放權,要直接搶下大聯盟固定先發、甚至擠進開季名單,難度相當高,尤其紅襪日前才剛簽下工具人凱納法利法(Isiah Kiner-Falefa),同時球隊也還在持續尋找右打外野與內野戰力補強。
在這樣的情況下,鄭宗哲不排除再度遭到指定讓渡,距離過去單季最多6次DFA的紀錄,已經相當接近。鄭宗哲在美職的未來動向,持續受到球迷高度關注。
台北/王孜筠 責任編輯/陳盈真
本文出自: https://news.ttv.com.tw/news/11502070000300W
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