D-Link DWR-923 DWR-921 DWR-922 4G LTE VoIP Router External Log Periodic yagi antenna highest gain Highest Gain Wide-Band Log Periodic Yagi Antenna with 30ft cable and mounting hardware Antenna adapter for D-Link DWR-923 DWR-921 DWR-922 4G LTE VoIP Router Frequency: 698-960/1710-2700 MHz Gain: 11dBi Cable 30ft LMR200 Low-Loss Cable Antenna Dimension (mm): 445x210x70