Audited Supplier
DAYTAI FM Stereo Broadcast Transmitter,(DT-FM-SBT-92xx) are newest generation of FM stereo Broadcast Transmitter with
low and medium power. It adopts advanced third generation of FM modulation technologies: digital signal processing (FPGA)
and digital frequency synthesis technology (DAC). DT-FM-SBT-92xx series transmitters take use of the advantage of audio
processing technology to provide users a CD quality hearing experience with high linear and high gain LDMOS tube amplifier module.
★Features
⊙Full digital front panel control, easy operation
⊙24-hour working unmanned, user friendly design
⊙Support fault self-diagnosis and self-protection
⊙Adjustable output power as needed (10W~10kW)
⊙Air-cooled system with low consumption and low noise
⊙Equipped with multiple lightning protection measures
⊙LED on the front panel supporting alarm and signal monitor
⊙Adopt high gain and high linear LDMOS tube amplifier module design
⊙Multi lightning protection measures, good protection for whole equipment
⊙Adopt international advanced signal processing technology (FPGA) for audio encoding
⊙Two Transmitters can be connected simultaneously by Coaxial switch, and one for back up
⊙Fully complying with national standard (GB/T4311-2000) and industrial standard (GY/T169-2001)
⊙Support AGC function with sustained power output (±0.1dB) to ensure the transmitter a good stability and reliability
⊙Low power consumption and super linear design to improve the transmission power, and reduce the nonlinear distortion
⊙High-efficiency power supply with wide range of voltage (AC100~264V), suitable for different working condition
S/No. | Item | Unit | Technical Index | Remark | ||
1 | Output Power | W | 500 | |||
2 | Frequency | MHz | 1kW≤ | 65.5~87; 87~108 | ||
1kW> | 87~108 | |||||
3 | Frequency deviation | Hz | ≤500 | |||
4 | Sparious Radiation | dB | ≤-70 | |||
5 | parasitic amplitude modulation noise | dB | -60 | |||
6 | Pilot frequency deviation | Hz | ±1 | |||
7 | S signal 38kHz Residual component | dB | <-40 | |||
8 | Deviation (100% modulation) | kHz | ±75 | |||
9 | pre-emphasis | µs | 50 | |||
10 | Distortion (100% modulation) | L | % | <0.2 | ||
R | ||||||
11 | Frequency response (without emphasis, de-emphasis) | L | dB | ±0.2 | ||
R | ||||||
12 | Frequency response (with emphasis, de-emphasis) | L | dB | ±0.2 | ||
R | ||||||
13 | SNR (100% modulation) | L | dB | ≥75 | ||
R | ||||||
14 | L/R Separation | L R | dB | >70 | ||
R L | ||||||
15 | L/R level diffrence | dB | <0.1 | |||
