im having difficulties on AA of ldk 300,i experience this problem when the voice announce playing suddenly has a gap period in a matter of 5 seconds then play again but not in proper announcement.....i check 8 channel of vmib card,its not stabalize on 1 channel only....sometimes on channel 2 then appears also on channel 6......what causes this problem and what is the best solution on this problem.....thanks in advance who has experience this matters.....