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纠正一下,100w和5w的差别是4个s,599对559不是问题,559对519有点问题,再下去问题就大了。我们国内的ham自身条件并不好,电磁环境不好对qrp来讲还关系比较小,天线条件不好倒是比较关键的,好点的yagi能比简单天线高3-4个s,正好弥补功率的不足,所以有些国外的qrp爱好者过来的信号一点不弱,dx成绩和很不俗,国内的qrp爱好者多数还用是天线简易天线,靠特别好的传播窗口和对方天线特别好做成qso的居多,通联机会急剧下降,初学者的挫折感也急剧增大。我还是坚持有足够的dx经验后再qrp。
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what can i work with five watts?
with five watts and even simple, portable vertical antennas, it should be possible to work over 100 countries within a few weeks in the spring and fall contest seasons. every effort must be made, of course, to devise and use effective antennas,
but five watts is only 13 db down from 100 watts. how many stations running 100 watts have you worked that were s9? a five-watt signal would be only very slightly less than s7, for comparison purposes!
--来源:ft-817官方网站