06/24/2003 03:20:26 PM,
Serialize complete at 06/24/2003 03:20:26 PM
Hi Jos,
Just a second here :-)
You mean to say that 0.01mfd ceramic caps are going to load down the pwm?
whoaaaaaa!
You mean to seriously post that a 4th harmonic of 10kHz (i.e., 40 kHz on a
vhf tuned dipole is going to do anything at all? whoaaaa.
You think that even running close and parallel, that a 10 volt (15 ma)
current parallel to the antenna for the whole length of the plane is going
to
induce 750 ma in the antenna? whoaaaaaaaa
Don't take me too seriously, but I used to play an engineer on TV (slow
scan TV that is)
Ira
Jos Okhuijsen <josok@ukolo.fi>
Sent by: owner-europa-list-server@matronics.com
06/24/03 02:40 AM
Please respond to europa-list
To: europa-list@matronics.com
cc:
Subject: Re: Europa-List: LEDs
Some simple math:
4 harmonics -> 4 x 3 db = -12 db
12 V -12 dB = 750 mV over any wiring carrying the load.
If the length of the wiring comes anything close to the wavelength, half
or quarter of the comm freq's, adding a working antenna to this
transmitter design, you might be a nuisance to anything in quite a
reasonable range in addition to your own problems. Bypass capacitors?
Will load (overload?) the square wave generator.
Jos Okhuijsen
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