https://alexnld.com/product/retevis-ha01-136-174-400-470mhz-sma-f-female-dual-band-handheld-whip-antenna-for-h777-rt5r-rt29/?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"