On Sat, 28 Jan 2006 21:42:48 -0500, wrote:

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 is overfive feet tall.

^ corrected post ^

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.

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"

Jack O'Neill schrieb:

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"


You wanted to answer Scott?
***I*** do know that.... ....when conditions are good....

Volker Tonn wrote:

Jack O'Neill schrieb:

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"



You wanted to answer Scott?
***I*** do know that.... ....when conditions are good....

yep.........oops

Jack O'Neill schrieb:


kind of power level, but it is done. The hams call it "QRP"



You wanted to answer Scott?
***I*** do know that.... ....when conditions are good....

yep.........oops

And -of course- hams call it QRPP :-)

regards