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Old April 10th 07, 04:56 PM posted to rec.radio.amateur.misc
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First recorded activity by RadioBanter: Mar 2007
Posts: 4
Default impedance matching



Some of your stuff is very clear and
easy to follow . .


But i think it starts lower than 1 or 2 GHZ .


And the current text books are worthless .

I have HP by .....

somebody ADAMS ..

Still too much obtuse in this book , but it
does have a few simplifications .

What humans need to know , is the

gotchas . When to toss a method ,

and experiment .

There are some really exciting secrets ...

When i hear someone wants to TX some

real big power ( Magnetron) , i see a lower

cost way .




TX only a small power ( modulation ) , then

demodulate at destination ..


plug in a huge 115vac P.S. and recreate the power ,

at the target , lower frequency .

I know how to lightning protect my
440 Yeasu 8800 , so i put it on the pole .


an HT in a Golfers hands will not be damaged
by lightning if it has a

low Z circuit to all components in the HT .

The HT must have both
1) a way to generate an E fld , and
2) be a low Z conductor ...
to be damaged .


Copper box your TX and then allow the hookup
wires to create the E fld , and it blows up .
But short the input and output wires and its
impossible to generate the E fld ,
the Lighning will use to "find" a path .

Lighning rods create an attraction to lighning
If you could generate and sustain a sig'
opp polarity , youd force lightning away .

Say you pound a copper rod in the gnd , 200 '
away . You still have the very high amps , into
the rod to create a E fld !

So , the theory of first attracting
then diverting 2 million amps in your conductor .
becomes costly .

You cant make antenna non-conductive ,
so live with it . But you can short all wires
leading into the TX box . And add other low
Resistance paths , and more importantly
Hi capacitance paths around your TX box ....

















 
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