Check the listing for details. BENDIX KING LAA-0801 EXTERNAL ANTENNA ADAPTER EPH DPH GPH DPHX5102X BK DPH5102. Condition: New. Listed at 29.99 USD. DPH5102X, DPHX5102X, DPH5102X-CMD. Bendix King DPH and GPH radios. EPH Series Radios. The LAA0801 is a adapter to Female to SO-239 UHF Female antenna adapter for BK series radios. Allows you the flexibility to connect your Bendix King legacy series portable radio to the external antenna mounted on the roof of your vehicle thus providing you with increased range.DPH5102X, DPHX5102X, DPH5102X-CMD. Bendix King DPH and GPH radios. EPH Series Radios. The LAA0801 is a adapter to Female to SO-239 UHF Female antenna adapter for BK series radios. Allows you the flexibility to connect your Bendix King legacy series portable radio to the external antenna mounted on the roof of your vehicle thus providing you with increased range.