Unlike other radio broadcasts , short-wave transmissions , bouncing off the ionosphere , can connect any two points on earth .
和其他的无线广播不一样，短波传送能从电离层反射回来，连接地球上任何两点。
The figures were released to mark the 40th anniversary of the first colour television transmissions on bbc one and itv .
公布该数据是为了纪念英国广播公司1台和独立电视台首次播送彩色电视。
A student at cambridge university in britain went further , intercepting e-passport transmissions some 50 metres ( 160 feet ) away .
英国剑桥大学的一个学生走得更远，从50米（160英尺）之外截获了电子护照传送的内容。
The last of the big television stations still broadcasting in analogue will turn off their transmitters and begin digital transmissions only .
最后一批仍以模拟方式进行广播的大电视台，将关闭它们的发射机，开始只传送数字信号。
Baran was a prolific and wide-ranging thinker and inventor who started companies and developed technology for printers , modems , satellite transmissions , and even metal detectors , the la times wrote in his obituary .
