There are some arguments not worth the time to argue :)
You do what you _know_ to do:)
We do what we _need_ to do :)
I just expressed an opinion :)
However, judging from the content of your message, I will say that
you do not know that your CAR is run by at least 3 processors.
How many time did you RESET your car today ?
I don't think that your wife has reset very often your washing machine,
this is if you have one :)
There is a fundamental difference between PC "Platforms" and "Embedded
Systems". Learn to know it as your can opener will start to talk to you very
soon an you will get scared as a Neanderthal in front of a TV set :)
And yes, our designs do not need QSK. I know of many amateurs that do not
need QSK. Don't you ?
And why shell I spend money for a Mercedes if all I need is to carry 6 tons
of Sand from here to there ?
By the way, today's Mercedes is far cry from what it was before it got
in cahoots with Chrysler :(
Have fun, have a life :) Be good :)
And read : http://www.sandlabs.com/wisdom.htm You might like it :)
Alex
===================================
If we can accept the notion that GUNS are
the killers and not the people, why is it that
we can not accept the idea that CARS are
the speeders and not the drivers?
Alex, trying to understand the world around.
==================================.
----- Original Message -----
From: "Zoran Brlecic" <WA7AA@attbi.com>
Cc: <towertalk@contesting.com>
Sent: Friday, December 21, 2001 7:17 PM
Subject: Re: [TowerTalk] My 2c about Relays
>
> alex wrote:
>
> > Usually, we do not need QSK. And the sequencing is done by the processor
so
> > it comes "free".
> > It is easier to integrate the named relay than a vacuum one. This is not
to
> > say we are not using, now and then, a vacuum relay :) However, most of
> > our units must be tested at 50Gs sinusoidal and we have not found
> > yet a VR to survive 30Seconds in this test.
>
> I know I'm going to get crucified by Steve for posting off-topic again,
but I
> can't resist. My point was that as long as you're going through all this
trouble
> of replacing the relay and building a sequencing circuit, you might as
well
> replace it with a full QSK circuit for a few more dollars and a few more
minutes
> of work. Saying that "we don't need a QSK' would be like saying that we
don't
> need a Mercedes (if it costs only $10 more than a Geo).
>
> Also, I don't know who "we" is, and I don't understand what this "50Gs
> sinusoidal" test has to do with the home made ham radio application.
>
> And last, but not least, to make it on-topic again, I don't agree with
your
> philosophy of using a microprocessor circuit for the antenna switching box
that
> is to be mounted on top of the tower. This box should be as simple as
possible
> (minimum # of parts, i.e. relays, diodes, bypass caps and MOV's, nothing
else)
> so the failure rate is reduced to a minimum. Nobody wants to climb a tower
to
> reset a CPU or to replace a dead transistor. Then there's a leakage of
harmonics
> right below your antennas, etc. I would much rather have a good
old-fashioned
> analog wiring going to that tower than messing with static sensitive
electronics
> 100 feet in the air.
>
> 73 ....... Zoran WA7AA
>
>
>
> AN Wireless Self Supporting Towers are now available! Windloading tables,
> foundation diagrams and charts, along with full details are now at the
> AN Wireless Web site: http://www.ANWireless.com
>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> Submissions: towertalk@contesting.com
> Administrative requests: towertalk-REQUEST@contesting.com
> Problems: owner-towertalk@contesting.com
>
AN Wireless Self Supporting Towers are now available! Windloading tables,
foundation diagrams and charts, along with full details are now at the
AN Wireless Web site: http://www.ANWireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
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