AERO AT1621-12 Iridium Magnetic Mount Antenna. Are you looking for a high-performance antenna that is simple to move between vehicles? The AT1621-12 Iridium Mobile Magnetic Mount Antenna is the answer. This low-profile patch antenna is ideal for any low-profile high-performance application. You’re set to go as long as you have a ferrous metal surface to attach to. 5 Meter (197) Cable Attached and Included (detachable). Simple and easy installation, just throw and go. Interchangeable with most Iridium satellite phones (antenna adapter required). Requires only a Minimum ground plane of 2 from all edges. Standard Model #: AT1621-12B-TNCM-197-00-00-IM. Weight: 405.4 grams (14.3 ounces). Diameter: 8.9cm (3.5in). Height: 2.2cm (0.85in). Cable Length: 5 Meters (16ft or 197) Standard – Or you can specify on order. Ground Plane: Minimum of 2 from all edges. Frequency: 1616 – 1626 MHz. Operating Altitude: 70,000 Feet. Polarization: Right Hand Circular. Axial Ratio: 3.0 dB Max at Bore Sight. VSWR:? 2 : 1. Operating Temperature: -40ºF (-40ºC) to 185ºF (85ºC). Notes: Adhesive bottom mount is also available on this antenna.