他艰苦奋斗了40年在宾夕法尼亚州的伊利周围建立了一系列无线电和电视发射台，现在退休在家坐享回报、颐养天年。
He'd worked 40 hard years building a chain of radio and TV stations around Erie, Pennsylvania, and now was reaping the rewards in retirement.
更甚者，有些电视和无线电发射台非法使用该无线电频段。
Making matters worse, some TV and radio transmitters were illegally using that radio band.
不过有些过于强大的无线电发射台侵犯了欧洲航天局的频率。
But some too-powerful radio transmitters encroached on the ESA's frequency.
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