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一、无线话机使用什么频率比较好当前国产的无线话机频率范围在27—470MC之间,其低端介于短波与超短波之间。机器发射既有空间波也有一定强度的天波,故低端超越障碍性能较强。我省气象部门现已使用的机器有747型、705B型、以及74—3型三种。经实际使用表明频率在150MC左右的机器,天线架设简便,工作情况稳定,并大大减小了天电干扰与工业干扰,(指汽车、拖
First, what is the use of wireless telephone frequency is relatively good The current domestic wireless telephone frequency range between 27-470MC, the low-end range between short-wave and ultra-shortwave. The machine transmits space waves that have both spatial and certain intensities, so the performance of low-end over obstacles is high. Meteorological departments in our province are now using the machine 747 type, 705B type, and 74-3 type three. The actual use shows that the frequency of about 150MC machines, antenna erection of simple, stable work, and greatly reduce the interference of electrical and industrial disruption, (referring to cars, drag