why don't you contact wingard, seems like there is a differing opinion here.
but here is a wingard answer: 'Depending on your previous and new service providers, it may be possible to convert your TRAV’LER antenna to be compatible with your new service provider. The following conversions are possible: SK-SWM3 to SK-1000, SK-3005 to SK-1000, and SK-1000 to SK-3003.'