What is recommended wireless LAN card for FreeBSD TDMA?

[Kyungsoo Lee]

Hello guys,

I have used Proxim 8470 LAN cards. But I realized that this card is too old
to use TDMA on FreeBSD. I need new wireless LAN cards which are supported by
TDMA on FreeBSD and with an external port to connect directional antenna. Do
you recommend any cards? Actually, it is hard to find wireless LAN cards
with the conditions.

Thanks,
keiran