最近对各种高频通讯接收机进行了研究,得出了一张综合性的规范参数简明表(见图1)。其结果是引入了一项新的术语——“接收故障系数”。有了这项系数,就能将各种接收机的接收质量进行直接比较。鉴于多年来高频波段作为一种通讯媒介使用,于是人们就认为“大多数接收机都缺少所要求的性能”~这种结论是相当站不住脚的。可以断言:与一般意见相反,在大多数情况下,通讯中断不是由于高频媒介,而是由于接收机的故障。 Recently, various high-frequency communication receivers have been studied and a concise table of the comprehensive specification parameters has been obtained (see Figure 1). The result is the introduction of a new term, “Acceptance Failure Factor.” With this factor, the receiver’s reception quality can be directly compared. Given the use of the high-frequency band as a medium of communication for many years, one would conclude that “most receivers lack the required performance”. This conclusion is quite untenable. It can be asserted that, contrary to the general advice, in most cases, the interruption of communications is not due to high-frequency media but rather to the failure of the receiver.