You know, the key word here is "matching transformer". Obviously, you dont
get the fact that the "matching transformer" may isolate these from ground
at RF , but that does not mean that RF ground is a different entity
electrically from standard ground. so you have a balun or tuned circuit in
place. big deal. many antennas use this arrangement, since they have to
radiate from all the elements. (there are no "grounded" elements.) I think
it's about time you bought a few books on the subject, since anyone with any
experience can see that you are operating from "assumptions" rather than
hard info. I have an antenna tuner as well, but i dont make assumptions and
draw conclusions concerning its functioning, the way you have. the tuner
does nothing to "change the nature of ground", my friend. It simply BLOCKS
the antenna from being grounded in a reactive sense.....
and from this reactive isolation, you have drawn the conclusion that there
is some nebulous "RF ground" that is completely different from "earth"
ground. I can assure you that this is not the case.

"-=jd=-" wrote in message
...
Dateline "rec.radio.scanner", Wed, 17 Sep 2003 01:20:05 GMT: As it
appeared in message-ID# , N8KDV
appears to have written the following...

Zombie Wolf wrote:

Uh, i "got that notion" from every single book on the subject, i own,
from about 30 years of antenna experimenting, winding my own baluns,
building my own beam, vertical, loop, and horizontal dipole, zepp,
and other antennas. I might ask YOU where YOU got the notion that "RF
ground and DC ground are two seperate things". They most certainly
are not. ground, my friend, is ground, period. if you are going to
ground the signal element of an antenna,

Hardly true at all. The antennas that I use here on HF are all
directly grounded at the matching transformer. I could take you out
back and we could run the meter between the antenna itself and the
ground rod and you would find it to be a direct short. That's a DC
ground, not an RF ground. Then I could take you inside and have you
try to tell me that reception was reduced. LOL


That was one of the first things I noticed when I built that 9:1
impedance matcher from the hard-core-dx site. the transformer grounds to
the coax shield which, in turn, connects to a grounding block (mounted
on a ground-rod) on the way to the receiver. You will find there is
continuity between the shield and the ground, as well as between the
center conductor and ground. The effect it appears to have with my ears
is a reduction in noise which lends the appearance of a stronger signal.
DC ground... RF Ground... I don't really care - I just know that I seem
to get more than enough of the "good" RF to my radio inspite of an
available ground right in the middle of the feed path.

-=jd=-
--
I presume to know nothing - I merely speak from experience.

My Current Disposable Email:


(Remove YOUR HAT to reply directly)

Zombie Wolf wrote:

You know, the key word here is "matching transformer". Obviously, you dont
get the fact that the "matching transformer" may isolate these from ground
at RF , but that does not mean that RF ground is a different entity
electrically from standard ground. so you have a balun or tuned circuit in
place. big deal. many antennas use this arrangement, since they have to
radiate from all the elements. (there are no "grounded" elements.) I think
it's about time you bought a few books on the subject, since anyone with any
experience can see that you are operating from "assumptions" rather than
hard info. I have an antenna tuner as well, but i dont make assumptions and
draw conclusions concerning its functioning, the way you have. the tuner
does nothing to "change the nature of ground", my friend. It simply BLOCKS
the antenna from being grounded in a reactive sense.....
and from this reactive isolation, you have drawn the conclusion that there
is some nebulous "RF ground" that is completely different from "earth"
ground. I can assure you that this is not the case.

But wait, you stated that if the antenna element was grounded it would not
work...



"-=jd=-" wrote in message
...
Dateline "rec.radio.scanner", Wed, 17 Sep 2003 01:20:05 GMT: As it
appeared in message-ID# , N8KDV
appears to have written the following...

Zombie Wolf wrote:

Uh, i "got that notion" from every single book on the subject, i own,
from about 30 years of antenna experimenting, winding my own baluns,
building my own beam, vertical, loop, and horizontal dipole, zepp,
and other antennas. I might ask YOU where YOU got the notion that "RF
ground and DC ground are two seperate things". They most certainly
are not. ground, my friend, is ground, period. if you are going to
ground the signal element of an antenna,

Hardly true at all. The antennas that I use here on HF are all
directly grounded at the matching transformer. I could take you out
back and we could run the meter between the antenna itself and the
ground rod and you would find it to be a direct short. That's a DC
ground, not an RF ground. Then I could take you inside and have you
try to tell me that reception was reduced. LOL


That was one of the first things I noticed when I built that 9:1
impedance matcher from the hard-core-dx site. the transformer grounds to
the coax shield which, in turn, connects to a grounding block (mounted
on a ground-rod) on the way to the receiver. You will find there is
continuity between the shield and the ground, as well as between the
center conductor and ground. The effect it appears to have with my ears
is a reduction in noise which lends the appearance of a stronger signal.
DC ground... RF Ground... I don't really care - I just know that I seem
to get more than enough of the "good" RF to my radio inspite of an
available ground right in the middle of the feed path.

-=jd=-
--
I presume to know nothing - I merely speak from experience.

My Current Disposable Email:


(Remove YOUR HAT to reply directly)