3W 10W 50W 100W 300W 1kw 3km 10kw FM Transmitter GB/T4311-2000 Standard FM Modulation Stereo Broadcast Transmitter

Product Description

 

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