The ZK2V 2011 antenna line-up is :

Antennas are the key to success in any DXpedition - especially when you are 17000km from Europe and 10000km from the USA.

I'm a bit old-fashioned (some might say obsessive !) when it comes to antennas. All ZK2V antennas will be resonant antennas for best results - no ATUs, traps, coils or linear loading devices will be used. 

This leads to somewhat difficult choices - antennas have to be : fed directly with 50ohm coax, to have <1.2:1 SWR i.e. >21dB return loss (ideally at both the CW and SSB ends of the band), be lightweight, ideally have some gain/directivity, be easily installed.

The weight of coax cable is also an important consideration - for example 20m of RG213U weighs 3.3kg.  ZK2V 2011 had about 120m of coax.

In 2009, I took 200m of 1.2mm diameter hard-drawn copper wire, which I left on Niue for ZK2V 2011. This is excellent wire for lightweight wire antennas - it will not stretch - for example the 40m vertical with 2 radials is only 0.33kg, the 20m half-square complete with W2DU current balun is only 0.52kg. If you use insulated wire for antennas, you are carrying a considerable weight of un-necessary plastic around - and it usually stretches.