Scott in Baltimore schrieb:

108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db



I still think my KW-7 kicks butt! I talk skip on AM and SSB using
a small 2 pill on low.

This is somewhat irrelevant.
The test was made to show gain on zero degree radiation angle.
For CB-skip radiation angle mostly is between 10 and 20 degrees.

This test will not neccessarely show the maximum over all gain.
But the low radiation comparison is good for people who want to talk to
other's in the same area whilst driving.

Only one thing is missing:

There is no comparison on different heights of mounting.
I bet there are some relevant -not really big- differences on some
antennas mounted on 4ft, 8ft or 13ft height (car/ van/ truck).

BTW: I've never seen a 108 ft stainless steel whip... ;-)

odo -from germany-

Volker Tonn wrote:

Scott in Baltimore schrieb:

108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db




I still think my KW-7 kicks butt! I talk skip on AM and SSB using
a small 2 pill on low.


Got news for you. Skip can be "talked" with as little as 10 MILLI watts!!
Granted, you need a good antenna and all the patience in the world for this
kind of power level, but it is done. The hams call it "QRP"

Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

So let me understand these readings you made... the DLX antenna was
your baseline?

Professor
www.telstar-electronics.com

On 29 Jan 2006 05:21:39 -0800, "Professor"
wrote:

Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

So let me understand these readings you made... the DLX antenna was
your baseline?

Yes. It was the lowest and became the reference

wrote:

On 29 Jan 2006 05:21:39 -0800, "Professor"
wrote:


Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

So let me understand these readings you made... the DLX antenna was
your baseline?


Yes. It was the lowest and became the reference

Hello Tnom:

Good going doing the testing. There are a lot of guys out there that do
not test anything and just recite books. Usually the guys who write the
books aren't the guys who design and test the antennas. And that testing
data is held quiet in the companies files.

I hear this recited stuff all the time. But theres no substitute for
hands on testing and comparison testing.

What was used for the field strength measuring device?

Jay in the Mojave

Kreedentials:

Rock n Roll Fan
CB radio Operator
Ownwer 1977 Ford F250, has worlds loudest PA System, is a blast at oldie
but goodie night at the drive in, but is missing drivers window
Antennna enthusiasts type of guy
Can solder on PL-259 connectors onto Coaxs

On Sun, 29 Jan 2006 07:58:32 -0800, Jay in the Mojave
wrote in :

snip
What was used for the field strength measuring device?


And what was used to produce a constant tone, tnom?







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On Sun, 29 Jan 2006 07:58:32 -0800, Jay in the Mojave
wrote:

wrote:

On 29 Jan 2006 05:21:39 -0800, "Professor"
wrote:


Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

So let me understand these readings you made... the DLX antenna was
your baseline?


Yes. It was the lowest and became the reference

Hello Tnom:

Good going doing the testing. There are a lot of guys out there that do
not test anything and just recite books. Usually the guys who write the
books aren't the guys who design and test the antennas. And that testing
data is held quiet in the companies files.

I hear this recited stuff all the time. But theres no substitute for
hands on testing and comparison testing.

What was used for the field strength measuring device?

This test was done with an in sight very low power remote transmitter
located about 200 yards away. A regular CB was used with low
readings on the S-meter to give me a relative field strength. The
exact S numbers were noted. Then next step was to calibrate the
readings.

The db calculation were computed after taking the same CB and exciting
it with a variable power transmitter to see how the noted S-meter
readings related to power output of the variable transmitter.

On 29 Jan 2006 05:21:39 -0800, "Professor"
wrote:

Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

So let me understand these readings you made... the DLX antenna was
your baseline?

Yes. It was the lowest and became the reference

Uh Tnom, you can't make something a reference AFTER the
test. That's not how you do a baseline.

On Sun, 29 Jan 2006 17:46:17 GMT, wrote:

On 29 Jan 2006 05:21:39 -0800, "Professor"
wrote:

Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

So let me understand these readings you made... the DLX antenna was
your baseline?

Yes. It was the lowest and became the reference

Uh Tnom, you can't make something a reference AFTER the
test. That's not how you do a baseline.

What? You can reference anything you want. Antenna manufacturers do it
all the time. How do you think an Anrton gets its numbers?

Do you even know what a db is?

wrote in message
...
On 24 Jan 2006 19:28:09 -0800, wrote:

Im thinking of getting a 102" whip, I dont think I need the spring
because of where im mounting it. But is it nessesary? Should I get it
with the whip ?

Here's another antenna test post I dug out of the archives.

********************************************

I did this test a few years ago (minus the Wilson), at least as best
I could. The problem is that when swapping the magmounts the
position might change a little bit. If the position changes a little
bit then the measured field strength may change a little bit also.
Seeing how all of these antennas are very close to begin with
then you have to wonder if the results may be off just a little bit?

Anyway's, I did run the test and attempted to calibrate the results
in db's . The calibration may be off a little bit, but the order from
the best to the worst as I measured IS accurate.

Radio Shack DLX magmount .................... 0db
K-40 .................................................. ....... .8db
Radio Shack 4.5' center load .................. 1.4db
5' Firestik ................................................ 3db
6.5" Hustler top load ............................... 4db
108' Stainless Steel whip ........................ 4.5db
7' Firestik .................................................. . 5db

Of coarse since the time of this test I have found
and measured even better antennas. Of these the
practical ones all use large diameter masting made of
highly conductive material. A large diameter, air spaced
loading coil. This coil is always upwardly located and the
overall antenna height

Damn Tnom, a 102 on a mag mount? You should be whipped. LOL