Chapter III. I posted a response to a question about antenna tuners
yesterday. So far it hasn't shown up on the Yahoo Shortwave Radios
forum. I think I may have run afoul of another forum rule though. A
section of the welcoming email to that forum indicated that responses
to forum members had to be sent to an email address. Apparently
responses are not allowed to be directly posted by members.

I'm hoping that the forum owner will clarify things in his response to
my email. Hopefully it was either some misunderstanding on my part or
a poorly worded message on theirs.

I've never had to jump through so many hoops to just read messages and
post a response. I'm trying to respond to the age-old question: Do
antenna tuners really help SWL's. Nothing inflamatory.....

HJS,
..
If you had a Shortwave Listener (SWL) Antenna ? Question ? .
..
You should have posted it here on "Rec.Radio.Shortwave".
RRSWL= http://groups-beta.google.com/group/...dio.shortwave/
..
Or - On the Shortwave Listener (SWL) Antenna eGroup on YAHOO !
SWL-ANTENNAS= http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
..
Usually whether here or there; you will get someone who will
Throw-a-Rock-at-the-Barn {Answer/Reply} within a Day and
often have an answer/reply within Hours.
..
Also - You could try "Rec.Radio.Amateur.Antenna" for some of your
Antenna Questions: If you are willing to get a bit more 'Technical'
about the Subject of "Antennas".
RRAA= http://groups-beta.google.com/group/...ateur.antenna/
..
iane ~ RHF
..
All are WELCOME at the Shortwave Listener (SWL) "Antenna Ashram"
http://groups.yahoo.com/group/Shortw...na/message/502
Some Say: On A Clear Day You Can See Forever.
I BELIEVE: On A Clear Night . . .
You Can Hear Forever and Beyond, The BEYOND !
[ With the a SWL Antenna of your own making. ]
..
..

In article .com,
wrote:

Chapter III. I posted a response to a question about antenna tuners
yesterday. So far it hasn't shown up on the Yahoo Shortwave Radios
forum. I think I may have run afoul of another forum rule though. A
section of the welcoming email to that forum indicated that responses
to forum members had to be sent to an email address. Apparently
responses are not allowed to be directly posted by members.

I'm hoping that the forum owner will clarify things in his response to
my email. Hopefully it was either some misunderstanding on my part or
a poorly worded message on theirs.

I've never had to jump through so many hoops to just read messages and
post a response. I'm trying to respond to the age-old question: Do
antenna tuners really help SWL's. Nothing inflamatory.....

Here is the age old answer, yes.

--
Telamon
Ventura, California

Hmmm...my experience is different. With a reasonably quiet receiver my
experience has been that a tuner brings both ambient noise and the
desired signal up equally in strength. Since background noise is
usually greater than the receiver noise level, a tuner functions more
like a volume control.

wrote:

Hmmm...my experience is different. With a reasonably quiet receiver my
experience has been that a tuner brings both ambient noise and the
desired signal up equally in strength. Since background noise is
usually greater than the receiver noise level, a tuner functions more
like a volume control.

When I was using some inverted vee antennas I found a tuner to be quite helpful
in bringing a station up to a reasonable level at times.

Most times I used a Drake MN-75 matching network.

dxAce
Michigan
USA

http://www.iserv.net/~n8kdv/dxpage.htm

I too have found a tuner will bring up the signal strength for Radio
Flyspeck to a nice level. But it will also being up static and other
signals on the same frequency in proportion. I don't know how a tuner
could select one signal and lift it above all the other competing
transmissions on the same frequency.
Transmit is of course a whole 'nuther ballgame.

wrote:

I too have found a tuner will bring up the signal strength for Radio
Flyspeck to a nice level. But it will also being up static and other
signals on the same frequency in proportion. I don't know how a tuner
could select one signal and lift it above all the other competing
transmissions on the same frequency.
Transmit is of course a whole 'nuther ballgame.

It doesn't, but I can see that you're missing the point! If ones antenna has
such a bad mismatch that you can't actually hear Radio Flyspeck very well and an
antenna tuner will bring it up to a better level then that's great. Forget about
noise, that's a popular misconception as far as I'm concerned.

Noise is noise is noise.

Oh well.

All I know about is what has been successful for myself, your mileage may vary,
as they say.

dxAce
Michigan
USA

http://www.iserv.net/~n8kdv/dxpage.htm

wrote:

I too have found a tuner will bring up the signal strength for Radio
Flyspeck to a nice level. But it will also being up static and other
signals on the same frequency in proportion. I don't know how a tuner
could select one signal and lift it above all the other competing
transmissions on the same frequency.
Transmit is of course a whole 'nuther ballgame.

And no, transmit in not a whole 'nuther ballgame.

The same properties apply to a transmitted signal as it does to a received
signal.

It's physics.

Proper transfer is proper transfer, no matter which way one tries to figure it.

dxAce
Michigan
USA

http://www.iserv.net/~n8kdv/dxpage.htm

The issue, or question is whether an antena tuner can selectively
increase one signal within the mishmash of other stuff you are hearing.
If you receiver is hearing an ambient noise level that is above the
internally noise floor within the receiver then an antenna tuner will
only bring that ambient noise leveI up. If you were hearing Radio Fly
Speck against a background of static and weaker stations, then
adjusting an antenna tuner will increase the signal strength of
everything including RFS. It won't magically lift just that single
station from the mud.

Said another way it isn't possible for a tuner change the difference in
signal strength between the desired signal and all the other signals
that are competing for your ear on the same frequency.

I've tried both MFJ and Grove tuners and the end results were the same.
Tuners can be fun if you want to twiddle some knobs.

The issue, or question is whether an antena tuner can selectively
increase one signal within the mishmash of other stuff you are hearing.
If you receiver is hearing an ambient noise level that is above the
internally noise floor within the receiver then an antenna tuner will
only bring that ambient noise leveI up. If you were hearing Radio Fly
Speck against a background of static and weaker stations, then
adjusting an antenna tuner will increase the signal strength of
everything including RFS. It won't magically lift just that single
station from the mud.

Said another way it isn't possible for a tuner change the difference in
signal strength between the desired signal and all the other signals
that are competing for your ear on the same frequency.

I've tried both MFJ and Grove tuners and the end results were the same.
Tuners can be fun if you want to twiddle some knobs.