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- The dawn of amateur radio in the U.K. 收音機雛形的誕生。
- A licensed amateur radio operator. 火腿族有許可證的業餘無線電的愛好者
- Most amateur radio operators build their own equipment. 大多數無線電業餘愛好者都是自己裝機子。
- Promote Amateur Radio Communication, enhance skills and technology. 推廣業餘無線電通訊,提高操作技巧及技術水平。
- RF Radio Frequency Level Controller. RF系列射頻導納式物位控制器。
- What is BPL, and why is it a possible threat to Amateur Radio? 什麼是BPL,為什麼它可能會影響到業餘無線通信?
- Radio frequency and communication test equipment. 射頻通信綜合測試儀。
- You can even operate Amateur radio while receiving FM broadcasts! 也可以在操作業餘電台之餘守聽FM廣播。
- Radio frequency circuit design II. 射頻電路設計2。
- Low power amateur radio transceiver is in urgent need to radio amateur. 低功率業餘無線電收發信機是業餘無線電愛好者們急需的低功率通信設備。
- More than 355,200 Americans hold licenses as amateur radio operators. 355200名美國人持有業餘無線電台工作執照。
- Vulnerable to radio frequency radiation interference. 易受射頻輻射的干擾。
- Tuner will be able to track the frequency-hopping radio frequency. 調諧器可以追蹤跳頻無線電頻率。
- Internal capacitors to suppress radio frequency interference. 內置抗電磁干擾電容。
- Transmission can be done by cable, radio frequency and satellite. 傳遞可通過海底電纜,無線電波和通信衛星來進行。
- The AGC technology in the radio frequency channel is also studied. 研究了射頻通道中的自動增益控制(AGC)技術。
- Method of insertion loss measurement for radio frequency filters. 射頻濾波器插入損耗的測量方法。
- As they were both amateur radio enthusiasts,they were able to keep in daily touch (with each other) over the air. 因為他們兩個都是無線電的業餘愛好者,所以每天都能通過無線電波與對方保持聯繫。
- Is rhinitis of cure of microtherm plasma radio frequency good? 低溫等離子射頻治療鼻炎能好嗎?
- As they were both amateur radio enthusiasts they were able to keep in daily touch(with each other) over the air. 因為他們兩個都是無線電的業餘愛好者,所以每天都能通過無線電波與對方保持聯繫。