Antenna band

[superman2112ms]

I have an old scanner mobile antenna. I do not remember the specs. After determining the length how do I take into account the coiled section to determine what band this antenna will be best on?

 

[dave3825]

Might be better if you posted a pic as someone might now the antenna.

 

[WA0CBW]

You could try measuring it with a VNA.
BB