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Old October 7th 10, 08:39 PM posted to rec.radio.amateur.antenna
Geoffrey S. Mendelson Geoffrey S. Mendelson is offline
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First recorded activity by RadioBanter: Jun 2006
Posts: 487
Default Reed Relays ? (a bit off topic)

Bob wrote:
Was really surprised to see: The front-end employs 34 subminiature
electromechanical relays (rather than often used but distortion-prone
semiconductor switches) to ensure high dynamic range.

I am retired now, so haven't kept up withese things, or the state of the
art nowadays, but are they still using electromechanical relays for
front ends feeding a 16 bit A to D ?


Actually from a manufacturing point of view it sounds like they have taken
the matching board from a "100 watt" automatic tuner and converted it to
a preselector/filter board by chainging the programing on the controller
chip.

In this case the "the front end ...." stuff is marketing hype.

If they got enough of them as a close out, it would be a cheaper than
having to make one from scratch, no matter what was in it.

Geoff.

--
Geoffrey S. Mendelson N3OWJ/4X1GM
To help restaurants, as part of the "stimulus package", everyone must order
dessert. As part of the socialized health plan, you are forbidden to eat it. :-)