Chip: BH1417F
Power supply: 5V
Total current: 60 mA ± 5 mA
Receiving mode: Any commercial FM radio
Frequency:  Low-end (87.7MHz / 87.9MHz / 88.1MHz / 88.3MHz / 88.5MHz / 88.7MHz / 88.9MHz) high-end (106.7MHZ / 106.9MHZ / 107.1MHZ / 107.3MHZ / 107.5MHZ / 107.7MHZ / 107.9MHZ) adjusting to any one of the 14 frequencies; time of shipment 88.9MHZ  
  Transmit power: 0.5 watts; space than 500 meters with patch antenna.
Stereo separation: 40DB



FM transmiter bh1417
FM transmitter frequency setting table D0:D1:D2:D3:

Frequency point 1 : LLLL = 87.7
Frequency point 2 : LLLH = 87.9
Frequency point 3 : LLHL = 88.1
Frequency point 4: LLHH = 88.3
Frequency point 5 : LHLL = 88.5
Frequency point 6 : LHLH = 88.7
Frequency point 7 : LHHL = 88.9
LHHH : PLL stop

Frequency point 8 : HLLL = 106.7
Frequency point 9 : HLLH = 106.9
Frequency point 10 : HLHL = 107.1
Frequency point 11 : HLHH = 107.3
Frequency point 12 : HHLL = 107.5
Frequency point 13 : HHLH = 107.7
Frequency point 14 : HHHL = 107.9
HHHH : PLL stop

DIP switches for the digital side [H], the letter side [L]