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见到几个大吉的功放模块,里面用的是sd1488管子,想收下来。大家给个建议?
长途拨号小猫上网,真不容易
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bd0fd你好,sd1488参数如下,uhf pa,单管最小输出38w。
vhf也可以用,但增益会比较高些。
470mhz 12.5 volts .efficiency 50% .common emitter pout = 38 w min. with 5.8 db gain
description
the sd1488 is a 12.5 v class c epitaxial silicon
npn planar transistor designed primarily for broadband
applications in the 450 - 512 mhz land mobile
radio band. this device utilizes diffused emitter
resistors to withstand infinite vswr at rated operating
conditions.