China Factory 1kw FM Broadcasting Transmitter for Television Transmitting Equipment

• Type: Transmitter
• Function: Signal Transmitting Device, Signal Transmission Equipment
• Certification: ISO
• Condition: New
• Output Power: 1kw
• Nominal Transmission Frequency: 87-108MHz
• Model NO.: ZRFM-FSJ
• Allowable Deviation of Carrier Frequency: 60.0mz
• Residual Radiation: -81.5dB
• Parasitic Amplitude Modulation Noise: -55.6dB
• Power Allowable Deviation: 0.5℅
• Transport Package: Export Wooden Box Packaging
• Specification: 480mm× 650mm× 132mm
• Trademark: NJZR
• Origin: Nanjing, Jiangsu
• Production Capacity: on Demand Customization

Product Description

Technical description

Main features:

★ All solid-state design, digital analog compatibility;  

★ Professional broadcasting level transmitter;

★ All power amplifiers are made of high-power LDMOS tubes produced by PHILIPS;

★ Wideband amplification of power amplifier components;

★ The modulation method is digital DDS modulation

★ Input interface: 2 analog audio interfaces, 1 digital audio interface, 1 SCA/RDS interface, 1 1PPS interface, 1 10MHz clock interface, and 1 MPX mixed input interface;

★ Output interface: 1 LOCK IN interface, 1 RS232 interface, 1 RS485 interface, 1 RJ45 interface, 1 RF monitoring interface, and 1 RF power output interface;

★ Display the intensity of the left and right channel signals by displaying the fluctuation of the two sound columns on the LCD;

The parameters displayed through the LCD include: emission power, reflection power, current of the amplifier tube, voltage of the amplifier tube, input level, temperature, and loop voltage;

★ Indicate the above content through indicator lights: power indicator light, overvoltage protection indicator light, standing wave ratio alarm indicator light, remote control status indicator light, temperature alarm indicator light, overcurrent, circuit, overvoltage exceeding limit indicator, system communication fault indicator, RF prohibition indicator;

★ Able to set 3 time periods per day to automatically control the power level;

★ Adopting high-efficiency switching power supply;

★ Large screen Chinese LCD display system, capable of computer monitoring;

The entire machine is equipped with various protective measures such as overcurrent, overvoltage, overexcitation, over standing wave, and over temperature.

order number	Indicator project		unit	standard Index requirements
1	output power		W	1000
2	Nominal firing frequency		MHz	87-108
3	Allowable deviation of the carrier frequency		Hz	60.0
4	Residual wave radiation		dB	-81.5
5	Parasitic amplitude modulation noise		dB	-55.6
6	Power permitting deviation		℅	0.5
7	Distortion (100 ℅ modulation)	L	℅	0.03
		R
8	frequency response (Increase / go increase)	L	dB	0.1~-0.1
		R
9	frequency response (No aggravation / removal)	L	dB	0.01~-0.02
		R
10	SNR (100 ℅ modulation)	L	dB	79.0
		R
11	Left and right sound channel separation degree	L--R	dB	61.0
		R--L
12	Left and right sound channel level difference		dB	0.01
13	pilot carrier frequency		kHz	19±1Hz
14	Guide frequent rate deviation		Hz	0.0
15	The 38-kHz residual component in the S signal		dB	-54.3
16	100 ℅ modulation frequency bias		kHz	±75
17	pre-emphasis		us	50
18	Occupied bandwidth		kHz	≤256
19	working temperature		ºC	0~+45
20	relative humidity		%	<95
21	power dissipation		W	<2000/<4000
22	RF output interface			L27K/L29K
23	Analog audio input interface			XLR Mother kannon head
24	Analog audio input impedance		Ω	The 10k unbalanced or 600 balance panel is optional
25	Digital audio input interface			XLR Mother kannon head
26	Digital audio input impedance		Ω	110. Balance
27	The SCA / RDS interface			BNC, out-off-balance
28	SCA / RDS input impedance		kΩ	10
29	audio input level		dBm	-15~ + 15 Step selection by panel 0.1 dBm
30	Maximum modulation capacity		kHz	±120
31	Power Supply Voltage		V	AC220
32	Overall dimensions (width * depth * height)		mm	480×650×132
33	weight		kg	23
34	above sea level		m	5000
35	operate mode			continuous work
36	reliability		h	MBTF≥5000