Is an external GSM antenna likly to suit NextG

[Andrew G]

Hi, This may be more applicable to members familiar with Australian telecommunications.
I have an existing external antenna for my (now disused) GSM mobile phone (my yacht is aluminum so I need one). I now have a new Telstra NextG wireless broadband modem (ie 3G, not 4G) which appears to not benefit from being connected to the old GSM antenna.

Should I expect the GSM antenna to assist the NextG modem (in which case I'll go looking for bad connections etc) or do I need to consider a new NextG-specific external antenna?

Thanks, Andrew G.

[BriaF]

it should work.
antenna function is about frequency
as long as your antenna covers the frequency
needed for nextg then it will work
nextg is a marketing name used by telstra
it is WCDMA ( wide band CDMA)
based like all 3g-4g.