The Iridium Antenna Adapter (for Iridium 9505a, Iridium 9505, and Iridium 9500 satellite phones) is used to connect the phone to a TNC type cable (sold separately) connected to an external antenna (sold separately).
CALL FOR DISCOUNTS ON VOLUME ORDERS: Outfitter Satellite has a large stock of the Iridium Antenna Adapter for the 9505a, 9505, and 9500.