RadioBanter - View Single Post

January 30th 06, 02:50 AM posted to rec.radio.cb

wrote:

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.

K40, 8db gain? wow! bologna