ok guys finished my wilson 5000 vs radio shack antenna test

[dxhound]

I would suspect the wilson would outperform the rat shack antenna by a small margin. Given that their whips are the same length, The tightly wound coil on the ratshack is acting more like a wire wound resistor than the wilsons substantially wider coil. If tested in a controlled enviroment I bet the wilson would show a higher Q (more efficient)

But Real world tests kinda say it all...........Im surprised by the find...Good Work

 

[W5LZ]

Long skinny coils are less efficient than short fat ones, but the difference is very small. I won't guess how those two antennas compare, but I have to think there won't be a significant difference between then.
- 'Doc

 

[Riverman]

I've made some home brew base antennas with 4' Firestiks that performed pretty good. Does anyone have an idea how a couple of R.S. base-loaded antennas would work compared to the top-loaded fiberglass Firestiks in a horizontal or inverted v configuration?

 

[M0GVZ]

Poorly compared to two bits of cheap speaker wire made into a dipole.

 

[psycho]

I believe that antenna is called the halfbreed..

What does the POTUS have to do with this?

 

[Tallman]

The tightly wound coil on the ratshack is acting more like a wire wound resistor than the wilsons substantially wider coil. If tested in a controlled enviroment I bet the wilson would show a higher Q

The higher "Q" will also enhance the tuning over a broader range of frequencies.

 

[The DB]

The higher "Q" will also enhance the tuning over a broader range of frequencies.

An antenna that has just enough bandwidth to cover the CB band (0.45 MHz) will have a Q of about 62, while an antenna with the same center frequency with 1 MHz bandwidth will have a Q of about 27.

Wider bandwidth means lower Q, not higher.

Q = fc / (f2 - f1)

Where:

fc = center frequency
f1 = lowest frequency in the range
f2 = highest frequency in the range


The DB

 

[Tallman]

Wider bandwidth means lower Q, not higher.
The DB

Mea cupla! Another Item I failed to understand 45 years ago in Navy Tech. school. I was "E" branch in the "A" level school. No instructors unless you failed a test.

 

[Captain Kilowatt]

An antenna that has just enough bandwidth to cover the CB band (0.45 MHz) will have a Q of about 62, while an antenna with the same center frequency with 1 MHz bandwidth will have a Q of about 27.

Wider bandwidth means lower Q, not higher.

Q = fc / (f2 - f1)

Where:

fc = center frequency
f1 = lowest frequency in the range
f2 = highest frequency in the range


The DB

You beat me too it. Low Q=wide bandwidth while high Q=narrow bandwidth but with greater efficiency usually.

 

[space cowboy]

What does the POTUS have to do with this?

nothing, but since you brought it up, why don't you post a verifiable DNA profile so we can see just how "pure" you are.