Replacing an ariel on Novak XXL

[captain-codpiece]

Hi,
I have been getting completely random interference for the last few weeks, due to a dodgy ariel on a 40 mhz Novak XXL. At some point the original ariel has been replaced from the pcb (not by me), and I think this is the cause of the issue. Before I go taking it apart, is it really that simple as soldering it back on?

I read somewhere that the length of the ariel tube can affect performance, does anyone know anything about this? Any advice would be welcome before I go taking it apart and ballsing it up.

Cheers

Lloyd