As i said above, the aussie broomstick is for UHF CB 477 Mhz. It will work on the 70cm ham band ( 430-440Mhz ) but the SWR will be out.
The 2m ham band is VHF 144-146Mhz.
See the problem?
Just to set the record straight, in OZ, we have two CB's. The same 27Mhz AM/SSB
as the states and 477Mhz FM. We also have a vast repeater network, i can talk to somebody 100km away from my kitchen on a handheld CB.
The fiberglass "broomstick" antennas are a colinear high gain (6-9dBi) stick...