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Digital radios are said to use ten times more electricity than the old analogues, why?

What exactly is taking the extra power? Is this because we are in the infancy of digital or will we be stuck w. ever more power hungry equipment? W. TV's I understand plasmas are ludicrously inefficient due to the screen technology, is the RF stage also eating up exponentially more power as in digital radios? Is this likely to improve or is it a giant leap backwards in power and resource conservation? If this is correct the amount of power used over a ten year life span of a digital radio would cost you more than buying many analogue sets that for all intents and purposes sound exactly the same and have other reception advantages over digital as well. You might want to keep an eye on this if you think analogue mean tube or valve sets! The brand new digital sets have been quoted as using 10 times the power of modern solid state sets still being produced. You might want to keep an eye on this if you think analogue mean tube or valve sets! The brand new digital sets have been quoted as using 10 times the power of modern solid state sets still being produced. Thanks for sending the further info below Further research leads me to conclude that this is largely eco scare mongering and that although digital RF stages consume around 8 watts compared to 2 watts this in itself is insignificant. From: Edward B Subject: Re: By analogue I didn't mean ancient valves Message: How many watts per channel is the amplifier capable of? This has an awful lot to do with the rating, as well. If the older radio is rated for only 5 watts output (2.5 watts per channel), and the newer radio is rated for 50 watts per channel, there will be a huge difference in how they perform as to power consumption. The front end of a digital radio will draw a bit more current than a standard superheterodyne analog unit. The complexity of the digital units would be the culprit there. It takes more power to operate the front end ASIC, FEC, and audio decoder circuits, before the signal is actually analog. From there the pre-amplifier, and power amplifier would com

Asked By: Smudgeward - 8/1/2007
Best Answer - Chosen by Asker
The digital radios are much more efficient than their valve (tube) counterparts. Vast strides were made with solid state, especially where power consumption was concerned. We have had to take a step backward to get digital, since the processing chip-sets are operating at extremely fast data speeds. This causes the chip... More
Answered By: Edward B - 8/1/2007
Additional Answers (1)
I think you got that backwards my friend... More
Answered By: inverse_mushroom_cloud - 8/1/2007
 
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