They tested the range of this transmitter.

他们测试了这台发射机的发射范围。

youdao

It can be used in developing the short range radio navigation ground beacon and testing the performance of its transmitter.

该平台可在近程无线电导航地面导航设备的研制中确定发射机参数和检验性能时使用。

youdao

A zone within the range of a radio transmitter where little or no radio signal can be received.

在收音机转播范围内，不能或只能收到一点无线电信号的地区。

youdao

The transmitter has a range of two meters to three meters, and operates in the unlicensed 2.4GHz frequency band.

CNN: Technology - Alcatel personalizes vibrating phone alerts

SKA, however, would be able to detect the leakage into space from a standard terrestrial television transmitter at a range of half a dozen light years or so.

ECONOMIST: Radio telescopes

It will take advantage of a two convenient facts about FM radio, first that there isn't a square inch of land in the U.S. or Canada, or for that matter much of the world, that isn't within range of an FM radio transmitter.

FORBES: Magazine Article