The Motorola HAE4003 is a low-profile UHF (450 - 470 MHz), ‚¼ wave roof mount antenna. It is compatible with Motorola CM200D, CM300D, XPR 2500, XPR 5350e, and XPR 5550e mobile radios as well as several Icom and APX models.
The HAE4003 has a signal that radiates vertically, making it ideal for urban environments where buildings can obstruct the signal.