Wondered similarly. I guess one just keeps the tip just above the antenna recess to remove w pliers...my old BMW antenna had a key that grabbed the tip

Sent from a rotary phone

> On Aug 4, 2015, at 2:51 PM, Alistair Bell <albell@SHAW.CA> wrote:
> 
> I recently bought and installed a hirschmann antenna. The kind with the little slot on the knob at end of whip, and key to fit the slot.
> 
> But what use is the slot? Does it screw in ( not working for me)?. Doesn't help pulling the antenna out, in fact when fully retracted its a bear to get a hold of the knob.
> 
> I must be missing something obvious.
> 
> Alistair