16Basic OperationPreparationAttaching a Hand StrapIf you attach a hand strap to the FT1DR, its string which is inserted in and secured tothe strap hole in the transceiver must have a diameter of 1 mm.* The hand strap does not come with the FT1DR.1 Remove the battery pack.2 Attach the hand strap.PrecautionUse a hand strap which can stand the weight of the FT1DR.If you use a hand strap which is not strong enough, the hand strap canbreak and the FT1DR can fall down, resulting in injury, damage to parts,and other troubles.How to Use the Battery Case (FBA-39) (Option)The optional battery case (FBA-39) allows three AA Alkaline batteries to be used as apower supply.HintWhen the battery case (FBA-39) is used, you can select a power output level from:Low Power (L1): 0.05 WLow Power (L2): 1WNote that Low Power (L3) and High Power are not available.1 Open the cover.Lift up the lower right corner indicated by the hand pointer inthe illustration.2 Put alkaline batteries in the battery case.Note Use three alkaline batteries. Pay attention to polarities (+ and )of the alkaline batteries.3 Close the cover.Push hard four corners of the cover to close it tightly.HintWhen the batteries become weak, _ is displayed on the LCD. Whenthe batteries become far weaker, _ blinks on the LCD.
