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改革开放以来,各地电子工业部门进口了各种网络频率特性测试仪。国外称作扫描信号发生器,国内电行业简称扫频仪。我国目前进口扫频仪绝大多数从日本引进,例如有日本丽达出品的LSW系列扫频仪,又如日本目黑出品的MSW系列扫频仪等,前一类型扫频仪主要用于电视机生产厂,后一类型扫频仪主要用于收录机生产厂,这些扫频仪车使用中稳定可靠,很少出现
Since the reform and opening up, various electronic industry departments have imported various network frequency characteristic testers. Abroad is called the scan signal generator, the domestic electric industry abbreviation swept frequency meter. The vast majority of imported scanners imported from Japan, for example, produced by Japan Lida LSW series of swept scanners, such as the Japanese Meguro produced MSW series of swept-frequency scanners, etc., the former type of sweeping instrument is mainly used for television Machine production plant, the latter type of sweeping instrument is mainly used for tape recorders production plant, the use of these sweeping car is stable and reliable, rarely appear