AIS Antenna?

[Leigh]

Hi,

I now have the  RTL-SDR.COM USB SDR AIS receiver for my RPi3-Sensehat setup (see bragboard)

It came with both a mini and larger (maybe each arm nearly 1m long) version of a 'V' telescopic antenna.
I have read in another thread that the mini one is for FM radio, will the larger one work for AIS?

Or should I get another VHF antenna to mount on the pullpit?


Or can I use a splitter (for example this one) with my existing VHF antenna at the mast top?


Thanks

Leigh