Sierra Wireless C597 597U 598U Wireless Modem Compass 597 598U 885 885u USB Modem external magnetic antenna & antenna adapter cable 3db 3db Magnetic antenna with 5ft cable Antenna adapter cable for Sierra Wireless C597 597U 598U Wireless Modem Compass 597 598U 885 USB Modem Frequency: 824-896MHz,890~960MHz,1800MHz,1900MHz Gain: 3dBi Cable with RG174/U Cable Length: 5ft Antenna Height: 9 inch