STINGER,

I would Agree with your assessment of the Justice AM Antenna.

"Also, to answer another post, yes -- it is directional, but I don't
find it as quite as directional as a CCRadio+, even though it has
two of the same 8-inch ferrite coils in it that the CCRadio has."

To me Justice AM Antenna by C. Crane Co. is a "Great Signal Magnet"
for those who are in locations that have very poor AM/MW Reception.

* The Justice AM Antenna is directional but not as directional
as a Select-A-Tenna Model 541-M; or a home made Box Loop Antenna
of about 15" or bigger.

* The Justice AM Antenna's 'advantage' over the Select-A-Tenna
Model 541-M; or a home made Box Loop Antenna of about 15" or bigger;
is that is an ACTIVE "Tuned AM/MW Antenna" and because of it's
built-in Amplifier the Justice AM Antenna has more Gain.
SAT= http://www.selectatenna.com/

IMHO: When compared to the Quantum "QX" Loop Antenna or the Kiwa MW
Air Core Loop Antenna: The Justice AM Antenna is NOT as Directional
as those two.
QX= http://www.dxtools.com/PRODUCTS.htm
KIWA= http://www.kiwa.com/kiwaloop.html

FWIW: For me the Justice AM Antenna will Always be the "Justice
AM Antenna (JAMA) that is sold by the 'c. crane co.' .
JAMA= http://www.ccrane.com/justice_antenna.asp

TBL: The Justice AM Antenna is the 'best' VALUE for the $100 of
any of the Commercial AM/MW Antennas on the Market Today.
- PENDING - The Release of the upcoming "PETE [KE9OA] MW Loop Antenna".


Two Messages to READ about the Justice AM Antenna:

* Remote Road Side (Mobile) AM/MW DXing from a Car
with the Justice AM Antenna.
http://groups.yahoo.com/group/SWL-AM...na/message/261

* The Justice AM Loop Antenna = My Thoughts . . .
http://groups.yahoo.com/group/SWL-AM...na/message/510


iane ~ RHF
..
Some Say: On A Clear Day You Can See Forever.
http://groups.yahoo.com/group/SWL-AM...na/message/502
I BELIEVE: On A Clear Night... You Can Hear Forever and Beyond !
..
..
= = = "Stinger"
= = = wrote in message . ..

Hi, Gray!

Yeah, the folks left at C.Crane renamed the Chris Justice Antenna
(now that he's no longer with them -- he's at RadioLabs).

I agree with everything you wrote about it. If you live in an
accidental "Faraday cage" because of metal studs or siding, it's
a great way to bring in strong AM signals.

Also, to answer another post, yes -- it is directional, but I don't
find it as quite as directional as a CCRadio+, even though it has
two of the same 8-inch ferrite coils in it that the CCRadio has.

-- Stinger

"Gray Shockley" wrote in message
.com...
On Tue, 27 Jan 2004 18:33:03 -0600, Diverd4777 wrote:

Check these links out...


[chomp]


http://www.ccrane.com/justice_antenna.asp


The URL is still good but the product is now named:

C. Crane AM Antenna with Twin Coil Ferrite (TCF)


If anyone wants a very well-done review, throw +stinger and +"justice
antenna" into google.


I said I'd give an "informal" opinion on it.


My observations a

1. On many frequencies - both day and night - I will be receiving
absolutely nothing but static + rushing noise with the CCRadio+. When I
turn
on and tune the CC Antenna, I'll get a reasonably strong station "most of
the
time" (subjective).

2. Particularly at night but - occasionally during the day - I can, by
tuning the antenna, actually get two stations on one frequency and get
both
of them quite well enough for them to be "clear (or "4x4" if you like that
sort of rating).


The antenna works.

I'm in a horrible location over the river and under the hill and with only
a
sealed-window facing South for an indoor antenna. I have the antenna
itself
at the midpoint (where the top and bottom meet).

A very impressive antenna.

Gray Shockley
--------------------------------------------------------
Oh! There's one at CCrane on the
Orphans Page for eighty dollars.
http://www.ccrane.com/orphans.asp


..
JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA JAMA
..

RHF wrote:
* The Justice AM Antenna is directional but not as directional
as a Select-A-Tenna Model 541-M; or a home made Box Loop Antenna
of about 15" or bigger.

All small antennas have the same nulls, the problem being that
they all have two patterns: a magnetic field pattern (with infinitely
deep nulls), and an electric field pattern (with infinitely deep nulls)
that doesn't null anywhere near the same place.

So in the nulls of the magnetic field pattern, you hear the electric
field signal instead of silence.

Careful balance and symmetry can eliminate most of the electric
field response, and that's how you get deep magnetic nulls.

If it's on the end of a long cable, it starts picking up electric
field again.

You can make it less important by having the first amplifier at the
antenna itself.

The passive MW loops work not by gathering signal (signal magnet) but
by matching impedance. Active ones work by having a lower internal
noise level than the receiver they front for.
--
Ron Hardin


On the internet, nobody knows you're a jerk.

You spreading this horse**** again?

"Ron Hardin" wrote in message
...
antenna itself.

The passive MW loops work not by gathering signal (signal magnet) but
by matching impedance. Ron Hardin


On the internet, nobody knows you're a jerk.

RH,

Well my simply (No Theory Required) Empirical Evidence using several
small commercial AM/MW Loop Antennas: RadioShack AM Loop Antenna;
Terk AM Advantage Loop Antenna, and Select-A-Tenna Model #541-M.
That there were differences in the Peaks and Nulls of each Antenna
when used with a variety of small 'portable' radios.

Even the Kiwa MW Air Core Loop Antenna and the Quantum "QX" Loop
Antenna have different Peak and Null characteristics when I have
used them with my Kenwood R-5000 and Icom IC-R75 (R-75).

When I compared the Justice AM Antenna (JAMA) to the Select-A-Tenna
(SAT) Model 541-M the Peaks and Nulls were different.

The SAT had a relatively Sharp Peak and Normal Null.
- If you move the SAT 'off' Peak by 30* you could see the Peak fall-off.
- From 30* to 80* the Signal would taper-off uniformly.
- From 80* to 90* the Signal would decline further to the Null.

The JAMA had a Wide Peak with a Sharp Null.
- If you move the JAMA 'off' Peak by 30* you would not see the
Peak fall-off as much.
- From 30* to 80* the Signal would not change greatly.
- From 80* to 90* the Signal would dramatically fall to the Null.

This Is Why I Say: The Justice AM Antenna (JAMA) is a Good Signal
Magnet for weak AM/MW Signal Locations.


iane ~ RHF
..
..
= = = Ron Hardin
= = = wrote in message ...
RHF wrote:
* The Justice AM Antenna is directional but not as directional
as a Select-A-Tenna Model 541-M; or a home made Box Loop Antenna
of about 15" or bigger.


All small antennas have the same nulls, the problem being that they
all have two patterns: a magnetic field pattern (with infinitely
deep nulls), and an electric field pattern (with infinitely deep
nulls) that doesn't null anywhere near the same place.

So in the nulls of the magnetic field pattern, you hear the
electric field signal instead of silence.

Careful balance and symmetry can eliminate most of the electric
field response, and that's how you get deep magnetic nulls.

If it's on the end of a long cable, it starts picking up electric
field again.

You can make it less important by having the first amplifier at
the antenna itself.

The passive MW loops work not by gathering signal (signal magnet)
but by matching impedance. Active ones work by having a lower
internal noise level than the receiver they front for.

..