https://alexnld.com/product/retevis-rhd-771-sma-m-antenna-dual-band-vhf-uhf-for-retevis-rt3-walkie-talkie-ham-radio-c9030m/?hilite="Retevis High Gain VHF/UHF Antenna SMA-F Retevis RHD-771 for KENWOOD BAOFENG UV-5R RETEVIS H777 RT5 Walkie Talkie Hf Transceiver C9030A"