DDS + DSP FM Modulator

Features:

• Adopting new digital signal process( DSP ) technology.
• Direct digital synthesis frequency( DDS ) technology.
• Advanced MCU control system.
• Columnar dynamic display audio signal.
• Perfect audio effect of CD sound.
• Supporting AES/EBU standard digital audio input.
• The standard frequency of RF output is 87.00-108MHz with the step of 10kHz.
• Free customization within the RF output frequency range.
• 122*32 lattice blue screen LCD synchronously displays the work parameters of the modulator.
• RS-232/485 serial communication remote control and telemetering.
• 1U,19-inch standard chassis structure.

• Power voltage    AC220V±10% 50Hz
• Power consumption    <25W
• RF frequency range        87.00MHz~108.00MHz,step10kHz
• Output power -8dBm~+12dBm
• Output impedance      50Ω
• RF output connector BNC(female)
• Carrier frequency precision    ±200Hz
• Harmonic suppression   ≥ 65dB
• Parasitic amplitude modulation    ≤-50dB
• Modulation frequency deviation  ±75kHz(100%modulation)
• Audio pre-emphasis  0μs,50μs,75μs
• Level difference of right and left  <0.1dB(100%modulation)
• Signal-to-Noise  70dB(type),1kHz,100%modulation
• Audio response ±0.1dB,10Hz~15000Hz
• Distortion    <0.1%,10Hz~15000Hz
• Stereo seperation    60dB(type),30Hz~15000Hz
• Pilot frequency    19kHz±1Hz
• Pilot frequency modulation  8%~10%
• Analog audio input impedance  600Ω,balance
• Analog audio input level       -12dBm~+8dBm,step1dBm
• Digital audio input impedance   110Ω,balance
• Digital audio input level     0.2~10Vpp
• Digital audio sample rate  30kHz~96kHz
• Weight                                       3.8KG
• Size 485mm×305mm×44mm