Re: whither regenerative amplifiers?
From: John Larkin (jjlarkin_at_highlandSNIPtechTHISnologyPLEASE.com)
Date: 10/30/04
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Date: Fri, 29 Oct 2004 20:31:32 -0700
On Sat, 30 Oct 2004 03:13:04 +0000 (UTC), kensmith@green.rahul.net
(Ken Smith) wrote:
>In article <bzzgd.2281$zx1.304@newssvr13.news.prodigy.com>,
>Joerg <notthisjoergsch@removethispacbell.net> wrote:
>[...]
>>Direct DSP would be prohibitively expensive at VHF. Probably you'd have
>>to assemble an array the size of a large pizza and call the power
>>company before turning it on.
>
>Thats the easy part. First, you have to run the signal through an ADC.
>Doing an ADC that has very many bits is tricky at high frequencies. You
>would end up with a combination ADC and spaceheater.
>
12 or 14 bit, 80 MSPS ADCs are cheap and plentiful nowadays, and
consume a few hundred milliwatts.
John
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