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K1TTT October 28th 10 11:08 PM

Antenna materials
 
On Oct 28, 7:11*am, "Szczepan Bialek" wrote:
Uzytkownik "K1TTT" napisal w ...
On Oct 27, 8:14 am, "Szczepan Bialek" wrote:



What indicates the DC meter close to transmitter between the antenna and

ground?
zero


1. Zero in the sunny day,
2. Zero under the storm cloud (Franklin),
3. Zero before the storm (when the St. Elmo's fire are).
S*


I'll give you the meter leads and you can stand out there while the
storm is approaching and we'll see what the voltage is due to the
storm. the dc voltage due to the radio transmitter is still zero.

Szczepan Bialek October 29th 10 08:40 AM

Antenna materials
 

Uzytkownik "Cecil Moore" napisal w wiadomosci
...
On Oct 28, 12:11 pm, "Szczepan Bialek" wrote:
... where should flow the electrons through the diode?


The diode (plus leads) is much longer than the total movement of the

electrons at RF. Exactly how many electrons are "flowing" through the
diode during each RF cycle?

More than zero.
S*


K1TTT October 29th 10 12:35 PM

Antenna materials
 
On Oct 29, 7:40*am, "Szczepan Bialek" wrote:
Uzytkownik "Cecil Moore" napisal w ...
On Oct 28, 12:11 pm, "Szczepan Bialek" wrote:

... where should flow the electrons through the diode?

The diode (plus leads) is much longer than the total movement of the


electrons at RF. Exactly how many electrons are "flowing" through the
diode during each RF cycle?

*More than zero.
S*


and less than infinity...

wow, i think we have made progress here!

Szczepan Bialek October 29th 10 05:05 PM

Antenna materials
 

Uzytkownik "K1TTT" napisal w wiadomosci
...
On Oct 29, 7:40 am, "Szczepan Bialek" wrote:
Uzytkownik "Cecil Moore" napisal w
...

. Exactly how many electrons are "flowing" through the

diode during each RF cycle?

More than zero.


and less than infinity...


Already you wrote" What indicates the DC meter close to transmitter
between the antenna and
ground?
zero"


wow, i think we have made progress here!


Not we. Only you. "More than zero and less than infinity" is a big progress.
Congratulations.
At end you admit that there is a netto DC.
S*


K1TTT October 29th 10 05:17 PM

Antenna materials
 
On Oct 29, 4:05*pm, "Szczepan Bialek" wrote:
Uzytkownik "K1TTT" napisal w ...
On Oct 29, 7:40 am, "Szczepan Bialek" wrote:

Uzytkownik "Cecil Moore" napisal w
...


. Exactly how many electrons are "flowing" through the

diode during each RF cycle?


More than zero.

and less than infinity...


Already you wrote" What indicates the DC meter close to transmitter
between the antenna and

ground?
zero"

wow, i think we have made progress here!


Not we. Only you. "More than zero and less than infinity" is a big progress.
Congratulations.
At end you admit that there is a netto DC.
S*


the diode causes an imbalance, not the transmitter. it can be either
direction depending on the orientation of the diode... how does your
electron flowing explain that?

Szczepan Bialek October 29th 10 05:32 PM

Antenna materials
 

"K1TTT" wrote
...
On Oct 29, 4:05 pm, "Szczepan Bialek" wrote:

At end you admit that there is a netto DC.

S*


the diode causes an imbalance, not the transmitter. it can be either

direction depending on the orientation of the diode... how does your
electron flowing explain that?

You must do the next progress. The simplest radio is like a photocell. There
are the two copper plate with the semiconductor between. Electrons always
flow from the side exposed to light to side in shadow. Never in opposite.
One plate is as an antenna and the other as the chassis.
Do you agree?
S*


Alejandro Lieber[_2_] October 29th 10 05:49 PM

Antenna materials
 
On 10/28/2010 02:20 PM, wrote:
Szczepan wrote:

"Alejandro wrote
...
On 10/25/2010 08:41 PM, K1TTT wrote:
On Oct 24, 6:51 pm, "Szczepan wrote:
"Registered
om...

And yes the radio works
with the ground and antenna connections reversed. The diode is a piece
of galena.

Does "it works exactly the same"?
S*

yes

I haven't read all the thread.


I always see the diode in series between the antenna and the headphones.


Like he
http://scitoys.com/scitoys/scitoys/r...ade_radio.html


You will get a much louder audio signal if you connect a germanium diode
( 1N34 ) in parallel with the phones.


\/ antenna
|
|________
| |
-- O
diode \/ ) phones
-- O
| |
|_______|
|
____
__ ground
-



Is the direction of the diode important?


No.

How many times do you have to be told that before it sinks in?



There is an alternate electric field between the antenna and earth.

Electrons will move down through the earphones and up through the diode.

--
Alejandro Lieber LU1FCR
Rosario Argentina

Real-Time F2-Layer Critical Frequency Map foF2:
http://1fcr.com.ar

Szczepan Bialek October 29th 10 06:14 PM

Antenna materials
 

"Alejandro Lieber" wrote
...

There is an alternate electric field between the antenna and earth.

Electrons will move down through the earphones and up through the diode.


If in parallel. And what will be in series?
S*



Alejandro Lieber[_2_] October 29th 10 07:00 PM

Antenna materials
 
On 10/29/2010 02:14 PM, Szczepan Bialek wrote:

"Alejandro Lieber" wrote
...

There is an alternate electric field between the antenna and earth.

Electrons will move down through the earphones and up through the diode.


If in parallel. And what will be in series?
S*



Nothing

--
Alejandro Lieber LU1FCR
Rosario Argentina

Real-Time F2-Layer Critical Frequency Map foF2:
http://1fcr.com.ar

Szczepan Bialek October 30th 10 08:36 AM

Antenna materials
 

"Alejandro Lieber" wrote
...

Electrons will move down through the earphones and up through the diode.


If in parallel. And what will be in series?
S*


Nothing


"I put up a 200 foot antenna between two trees over my house, and tuned to a
50,000 watt station about 30 miles away, and now I get 175 microamps of
current through my meter."

It is almost nothing but more than zero.
S*



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