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发表于 2010-4-1 22:10
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一般收音机也应该属于无线电设备吧, 请看下面的链接,你可以找到下面的内容:Radio apparatus (i.e. any device containing a radio receiver or transmitter) is specifically excluded。即无线电接收器不属于"digital apparatus",所以我认为ICES-003是不适合的对吗?
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Q 1. What devices are considered to be "digital apparatus"? 9 c* `$ W9 R: w7 E: N. K- H
2 H& c7 q- Q% d" _2 ^; k( ^9 pA. The definition of digital apparatus provided in ICES-003 states: "...'digital apparatus' means an electronic apparatus that generates and uses timing signals at a rate in excess of 10,000 pulses per second...". Practically, this means any device which contains a microprocessor running at a 10 kHz clock rate or greater.
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) Y' L+ _" N, G/ W, ]* jBy extension, any device which must be attached to this apparatus in order to perform its intended function is also included as a part of the apparatus. Therefore, computer peripherals are considered to be digital apparatus and include such things as floppy disk drives and other data storage devices, terminals, keyboards, printers and video monitors. However, a device such as a mouse or joystick which contains only non-digital circuitry or a simple circuit for signal conversion (e.g. an integrated circuit for analogue to digital conversion) is considered a passive, add-on device, and is not subject to the requirements for digital apparatus. ; ^' E, e: G8 ]& _* l' l3 i. F
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Radio apparatus (i.e. any device containing a radio receiver or transmitter) is specifically excluded. As an example, VCRs and stereo system components which contain digital circuitry and a tuner would be excluded from the definition, but stand-alone tape drives or compact disc players containing digital circuitry would be included. , C# I( _9 [1 [" m3 ^; T& T; X5 O$ \
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I.S.M. (industrial, scientific or medical) radio frequency generators, though they may contain digital circuitry, are excluded from the definition of digital apparatus and are not subject to ICES-003. They are instead subject to another Interference-Causing Equipment Standard, ICES-001, which pertains specifically to I.S.M. radio frequency generators. |
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