31 QUICK REFERENCE GUIDE50 MHz bandadapterAttach the 50 MHzband adapterHold the base , then screw theantenna down.for BC band to 50 MHz band,through to 800 MHz bandfor WFM band to800 MHz bandDetach the top cap**KEEP the the anttenna top capin the safe place when it notin use.D Installing the antennaInsert the supplied wide band antenna into the antenna con-nector and screw down the antenna as shown below.• 50 MHz band adapterAttach the 50 MHz band antenna adapter before operating50 M Hz band or receiving the signal below 50 MHz band. Besure to use this 50 MHz band adapter during the operationbelow 50 MHz band. You can operate the whole band withthis adapter.CAUTION!TRANSMITTING WITHOUT AN ANTENNA MAY DAMAGETHE TRANSCEIVER.NEVER HOLD the anten-na when carrying the trans-ceiver.KEEP the jack covers at-tached when the jack is notin use, to avoid bad con-tacts from dust and mois-ture.NOTE:Commercially available antennas may increase transceiverperformance. An optional AD-92SMA ANTENNA CONNECTORADAPTER is available to connect an external antenna with aBNC connector.