antenna radio ht motorola xir p8260 p8268 antena uhf gps pmae4024b apx pmae4024b xpr dgp p8200 p8208 xpr6300 xpr6500 dgp4150 dgp6150 apx4000 apx6000 apx6500 apx7000 400-470mhz analog digital pmae4024 p6600 p8668 p8668i xpr apx