Dealing with noise at my current location has been a royal
PITA. Electrical noises, computer monitors, environmentals have
been increasing in amplitude for the last several years. My dipoles,
random wires (even with transformers), even my rhombic, have been
awash with more noise than signal a few megahertz either side of 11
mhz, and decent DXing has been more or less non existent.

SoooOOOOOOoooo, before I make the investment in something like
a Wellbrook active loop, I've been experimenting in magnetic
transfer after MLB and MTA by RF Systems.

At first blush, with first draft of a homemade MTA, I"ve noted
dramatic noise attenuation 9db, with a signal loss of around 3db on
most signals, which my receivers can more than compensate for.

As the antenna goes through further revisions and as details
become more conclusive, I'll pass along some of my results.

Currently, though, this antenna seems to be an effective solution.

Developing....



p

Yes, PLEASE keep us posted. I'm intrigued and looking forward to more news
about this antenna system.
Linus

In article ,
Peter Maus wrote:

Dealing with noise at my current location has been a royal
PITA. Electrical noises, computer monitors, environmentals have
been increasing in amplitude for the last several years. My dipoles,
random wires (even with transformers), even my rhombic, have been
awash with more noise than signal a few megahertz either side of 11
mhz, and decent DXing has been more or less non existent.

SoooOOOOOOoooo, before I make the investment in something like
a Wellbrook active loop, I've been experimenting in magnetic
transfer after MLB and MTA by RF Systems.

At first blush, with first draft of a homemade MTA, I"ve noted
dramatic noise attenuation 9db, with a signal loss of around 3db on
most signals, which my receivers can more than compensate for.

As the antenna goes through further revisions and as details
become more conclusive, I'll pass along some of my results.

Currently, though, this antenna seems to be an effective
solution.

Developing....

I don't know for sure but I suspect that the RF Systems units are
current or choke type transformers. This type is more efficient than
the voltage transformer type.

--
Telamon
Ventura, California

Peter Maus wrote:
SoooOOOOOOoooo, before I make the investment in something like
a Wellbrook active loop, I've been experimenting in magnetic
transfer after MLB and MTA by RF Systems.

At first blush, with first draft of a homemade MTA, I"ve noted
dramatic noise attenuation 9db, with a signal loss of around 3db on
most signals, which my receivers can more than compensate for.


Interesting stuff Peter. Hope you are well!

--
Brian Denley
http://home.comcast.net/~b.denley/index.html

Brian Denley wrote:
Peter Maus wrote:
SoooOOOOOOoooo, before I make the investment in something like

a Wellbrook active loop, I've been experimenting in magnetic
transfer after MLB and MTA by RF Systems.

At first blush, with first draft of a homemade MTA, I"ve noted
dramatic noise attenuation 9db, with a signal loss of around 3db on
most signals, which my receivers can more than compensate for.



Interesting stuff Peter. Hope you are well!


Could be a lot worse. Could be in Milwaukee.



As I get things in place, and work through the revisions, I'll
put some audio comparisons together demonstrating the improvements.

GrtPmpkin32 wrote:

Yes, PLEASE keep us posted. I'm intrigued and looking forward to more news
about this antenna system.
Linus



This is about a 7ft vertical. The low noise, and compact size
make it a good alternative for limited space applications. Better
than many actives because of the lower noise floor, irrespective of
absolute signal level. Any decent receiver will have more than
enough sensitivity to make up the minor difference.


I'll definitely let you know how things shape up.




[

In article ,
Peter Maus wrote:

GrtPmpkin32 wrote:

Yes, PLEASE keep us posted. I'm intrigued and looking forward to more news
about this antenna system.
Linus



This is about a 7ft vertical. The low noise, and compact size
make it a good alternative for limited space applications. Better
than many actives because of the lower noise floor, irrespective of
absolute signal level. Any decent receiver will have more than
enough sensitivity to make up the minor difference.


I'll definitely let you know how things shape up.

I thought you had a tall inverted V in the backyard that could be seen
from the street and neighbors complained about it.

--
Telamon
Ventura, California

Telamon wrote:
In article ,
Peter Maus wrote:


GrtPmpkin32 wrote:


Yes, PLEASE keep us posted. I'm intrigued and looking forward to more news
about this antenna system.
Linus



This is about a 7ft vertical. The low noise, and compact size
make it a good alternative for limited space applications. Better
than many actives because of the lower noise floor, irrespective of
absolute signal level. Any decent receiver will have more than
enough sensitivity to make up the minor difference.


I'll definitely let you know how things shape up.


I thought you had a tall inverted V in the backyard that could be seen
from the street and neighbors complained about it.



Good memory. A-D Dx Ultra. Helluvan antenna. The problem is
that it, too, is overwhelmed with the noise. Lots of signal. Also
lots of noise. So, I'm looking for noise immunity, here, to recover
the bands between 8mhz and 15mhz.

With my extensive ground system, a decent noise attenuating
antenna will produce some large benefits.

I've noticed that the MLB balun does an excellent job at reducing/eliminating
man-made noise. Whatever losses are present are more than compensated for by
the increase in S/N level.

73s
Ken Maltz
Jericho, NY
NRD-535D, NRD-220 Collins R-388, Racal RA6790/GM,
ICOM R71A, ICOM R-7100(x2), AOR AR-8000
Panasonic RF-2200, Sony ICF-7600GR,
Hoka Code3 Gold-Pro, 60' long wire, MLB balun

Whats wrong with Milwaukee??????????


"Peter Maus" wrote in message
...
Brian Denley wrote:
Peter Maus wrote:
SoooOOOOOOoooo, before I make the investment in something like

a Wellbrook active loop, I've been experimenting in magnetic
transfer after MLB and MTA by RF Systems.

At first blush, with first draft of a homemade MTA, I"ve noted
dramatic noise attenuation 9db, with a signal loss of around 3db on
most signals, which my receivers can more than compensate for.



Interesting stuff Peter. Hope you are well!


Could be a lot worse. Could be in Milwaukee.



As I get things in place, and work through the revisions, I'll
put some audio comparisons together demonstrating the improvements.