This link shows how I have "grounded" the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

In message , vangellis
writes
This link shows how I have "grounded" the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

Some time ago, there was report published of tests which compared the
received signals levels with - and without - this type of transformer.
From memory, it showed that, on most frequencies, there was a very
noticeable increase of signal level into the receiver. Only on a
minority of frequencies was there some (acceptable) reduction of level.
I've had a quick Google, but haven't yet found this report.
--
Ian

On Mar 28, 1:16*pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded" the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- *From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.

In message
, RHF
writes
On Mar 28, 1:16*pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded"
the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- *From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.
.
~ RHF
.

Thanks. There's certainly a lot of good reading there, and in the links
in your other posts today. The info particularly in

http://web.archive.org/web/200306090...wa/badx/antenn
as/SWL_longwire.html

is exactly the sort of thing I was thinking about.

However, there's one thing which I note (just a quick look) on several
of the websites, and that is the transformer is repeatedly referred to
as a 'balun'. It isn't. I suspect that it's because they are using the
same transformer as the type used in a balun but, in this application, a
balun it ain't!
--
Ian

Ian Jackson wrote:

In message
, RHF
writes
On Mar 28, 1:16 pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded"
the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.
.
~ RHF
.

Thanks. There's certainly a lot of good reading there, and in the links
in your other posts today. The info particularly in

http://web.archive.org/web/200306090...wa/badx/antenn
as/SWL_longwire.html

is exactly the sort of thing I was thinking about.

However, there's one thing which I note (just a quick look) on several
of the websites, and that is the transformer is repeatedly referred to
as a 'balun'. It isn't. I suspect that it's because they are using the
same transformer as the type used in a balun but, in this application, a
balun it ain't!

transformer/balun. The only ones who care are anal folk like 'Eduardo'.

dxAce wrote:

Ian Jackson wrote:

In message
, RHF
writes
On Mar 28, 1:16 pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded"
the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.
.
~ RHF
.

Thanks. There's certainly a lot of good reading there, and in the links
in your other posts today. The info particularly in

http://web.archive.org/web/200306090...wa/badx/antenn
as/SWL_longwire.html

is exactly the sort of thing I was thinking about.

However, there's one thing which I note (just a quick look) on several
of the websites, and that is the transformer is repeatedly referred to
as a 'balun'. It isn't. I suspect that it's because they are using the
same transformer as the type used in a balun but, in this application, a
balun it ain't!

transformer/balun. The only ones who care are anal folk like 'Eduardo'.

And, as always, don't do business with the Huntington Investment Company.

On Mar 29, 5:37*am, Ian Jackson
wrote:
In message
, RHF
writes





On Mar 28, 1:16*pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded"
the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- *From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.
.
~ RHF
.

Thanks. There's certainly a lot of good reading there, and in the links
in your other posts today. The info particularly in

http://web.archive.org/web/200306090.../naswa/badx/an...
as/SWL_longwire.html

is exactly the sort of thing I was thinking about.
-
- However, there's one thing which I note (just a quick look)
- on several of the websites, and that is the transformer is
- repeatedly referred to as a 'balun'.
-
- It isn't. I suspect that it's because they are using the
- same transformer as the type used in a balun but,
- in this application, a balun it ain't!
- --
- Ian
-

Ian Jackson -read- The Magnetic Long-Wire Antenna Balun
- A Balun It Ain't ! - But It Works )

http://groups.google.com./group/rec....334b2122c8ddbf

iane ~ RHF

In article
,
RHF wrote:

On Mar 29, 5:37*am, Ian Jackson
wrote:
In message
, RHF
writes





On Mar 28, 1:16*pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded"
the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- *From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.
.

Thanks. There's certainly a lot of good reading there, and in the links
in your other posts today. The info particularly in

http://web.archive.org/web/200306090.../naswa/badx/an...
as/SWL_longwire.html

is exactly the sort of thing I was thinking about.
-
- However, there's one thing which I note (just a quick look)
- on several of the websites, and that is the transformer is
- repeatedly referred to as a 'balun'.
-
- It isn't. I suspect that it's because they are using the
- same transformer as the type used in a balun but,
- in this application, a balun it ain't!

Ian Jackson -read- The Magnetic Long-Wire Antenna Balun
- A Balun It Ain't ! - But It Works )

http://groups.google.com./group/rec....334b2122c8ddbf


This isn't hard to understand. This is a two part term, which refers to
the type of transformer. "BAL" refers to balanced and "UN" refers to
unbalanced so the possibilities are BALBAL, UNUN, or BALUN.

A long wire is unbalanced and a coax is unbalanced so the transformer
type you would use is a UNUN. If you had a dipole, which is balanced
connected to a coax you would use a BALUN.

--
Telamon
Ventura, California

On Mar 29, 12:40*pm, Telamon
wrote:
In article
,





*RHF wrote:
On Mar 29, 5:37*am, Ian Jackson
wrote:
In message
, RHF
writes

On Mar 28, 1:16*pm, Ian Jackson
wrote:
In message , vangellis
writesThis link shows how I have "grounded"
the setup
http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF

vangellis

It's interesting that they have one version which is described as a 10:1
impedance matching voltage transformer, for 50 ohm coax, and the other
described as a 9:1 voltage balun transformer, for 75 ohm coax. It could
be that they are essentially the same inside (why would they want to
make two different types?), but with different connectors. Neither are
actually acting as baluns (although they be using balun transformers
inside the can).

- Some time ago, there was report published of tests
- which compared the received signals levels with
- and without - this type of transformer.
- *From memory, it showed that, on most frequencies,
- there was a very noticeable increase of signal level
- into the receiver. Only on a minority of frequencies was
- there some (acceptable) reduction of level.
- I've had a quick Google, but haven't yet found this report.
- --
- Ian

IAN,

Read this Post : SWL Longwire + Low Noise Antenna
Connection + Grounding Is Key To Good Reception
Three Messages to Read -by- John Doty

http://groups.google.com/group/rec.r...bc6a2bf8acc12d

Follow the Links/URLs provided in the Message.
.

Thanks. There's certainly a lot of good reading there, and in the links
in your other posts today. The info particularly in

http://web.archive.org/web/200306090.../naswa/badx/an....
as/SWL_longwire.html

is exactly the sort of thing I was thinking about.
-
- However, there's one thing which I note (just a quick look)
- on several of the websites, and that is the transformer is
- repeatedly referred to as a 'balun'.
-
- It isn't. I suspect that it's because they are using the
- same transformer as the type used in a balun but,
- in this application, a balun it ain't!

- - Ian Jackson -read- The Magnetic Long-Wire Antenna Balun
- - - A Balun It Ain't ! - But It Works )
- -
- - http://groups.google.com./group/rec....334b2122c8ddbf
-
- This isn't hard to understand. This is a two part term, which refers
to
- the type of transformer. "BAL" refers to balanced and "UN" refers to
- unbalanced so the possibilities are BALBAL, UNUN, or BALUN.
-
- A long wire is unbalanced and a coax is unbalanced so the
transformer
- type you would use is a UNUN. If you had a dipole, which is balanced
- connected to a coax you would use a BALUN.
-
- --
- Telamon
- Ventura, California
-

Telamon - Good Explanation. - We Agree ! ) ~ RHF

On Mar 28, 12:06*pm, "vangellis" wrote:
Subject-Line was : balun question?
http://groups.google.com/group/rec.r...42f1fea85e6cf1
-
- This link shows how I have "grounded" the setup
- http://www.geocities.com/qrp_baluns/LMZ-50-Ground.GIF
-
- vangellis
-
Vangellis,

The "Correct Way" to Install a Longwire Antenna and Balun
by Wellbrook - Using the Far-End Feed-Point Concept
http://groups.yahoo.com/group/Shortw.../message/11773

The "Correct Way" to Install a Longwire Antenna and Balun
by Wellbrook = http://www.wellbrook.uk.com/longwire.html
We have all most likely done it the wrong way more than once . . .

A key-point that Wellbrook makes is the Five Metre
"Noise Zone" that exists around a House and getting
the Wire Antenna Element away {out} from this area.
http://www.wellbrook.uk.com/longwire.html
Note - The above "Correct Way" installation will ensure
that the Wire Antenna Element is 'outside' the local
Noise Zone which extends up to Five Metres (16 Feet)
around the House. Also the noise pickup is lower with
the feeder close to the ground -or- buried under the
ground a few inches.
-Why- The Antenna and the Balun are within the Local
Noise Zone RFI & EMF {Interference Area} that surrounds
most buildings up to distance of Five Metres (16 Feet).

Read - WHY - The Far-End-Fed Shortwave Listener's
(SWLs) Inverted "L" Antenna
http://groups.google.com/group/rec.r...cfc6b9cb2447c0


all i ask for is five metres beyond the noise - iane ~ RHF {pomkia}