Check the listing for details. Radio Antenna for Motorola HT750 GP300 VHF 146-162Mhz HAD9742A. Condition: New. Listed at 14.99 USD. Radio Antenna for Motorola HT750 GP300 VHF 146-162Mhz HAD9742A Replacement Radio Antenna for Motorola VHF 146-162MhzAftermarket Equivalent to Motorola Part #HAD9742ALength: 3.5 inchesFor use with the following radios: EX500, EX600, CP150, CP200, CT250, CT450, PR400, HT600, HT750, HT1250, HT1550, GP300, GP350, P110, P200, P1225, P1225LS, P10, P50, P100, P110, SP10, SP21, SP50, Saber I, Saber II, Saber III, MT1000. Handheld radio antennas come in many styles and sizes. More importantly is that you use an antenna that is tuned to the specific frequencies of the radio. Failure to use the correct antenna will result in poor performance and may result in damage to the radio. So before ordering please verify the frequencies of the radio.