5m Dual Slider Outdoor Antenna With CRC9/TS9 And SMA Connectors For 3G/GSM Router Modem 4G LTE And 3D Uhf Vhf Tv Antenna From Trdmobile, $20.93 | DHgate.Com
External GSM antenna with cable and connector
Omnidirectional outdoor antenna for GSM 3G 4G LTE repeater of 698-960/1710-2700MHz N connector - Cablematic
GSM/3G/4G Antenna Outdoor Panel 12dbi High Gain 698-2700MHz 4G LTE Aerial Omnidirectional Antenne
Selecting an External Antenna for a GSM/3G/LTE Modem
Amazon.com: Cell Phone Signal Booster for Home & Office, 2G 3G 4G GSM DCS LTE B3 Cell Phone Booster Kit with Outdoor & Indoor Antenna, Up to 200 sq ft Cell Booster
RG174 GSM 3G 4G WCDMA Magnet Outside Antenna for Mobile Car Signal Booster Use | eBay
Amazon.com: Omni Directional Outdoor 4G 5G LTE GSM Cellular Antenna for Routers and Cell Phone Signal Booster/Wide Band 698-6000mhz 10dBi Higher Gain Longer Range External 4G LTE Antenna : Electronics