Min. Order : 1 Piece

1000W Digital FM Stereo Transmitter for Radio Station 1KW

Get Latest Price
Trade Assurance
Built-in order protection service in alibaba.com
Product quality
On-time shipment
More on shipping and other trade services.

Quick Details

Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Frequency Range: 87.0MHz~108.0MHz
Place of Origin: Zhejiang China
Output Power: 0~1000W
Size: 483mmX88mmX440mm
Model Number: ZHC618F-1000W
Certification: ce
Weight: 12KG
Brand Name: ZHC
RF Output Interface: 7/16"(female)/ 7/8" Flange
Temperature Range: -5℃~+45℃
TYPE: Compact
Packaging Detail: Export Box
Package Preview: https://sc04.alicdn.com/kf/H6ff576dfac48447991f1ab6dc50437dag.jpg_640x640.jpg
Hangzhou Zhongchuan Digital Equipment Co., Ltd.
Manufacturer, Trading Company
Response Time
On-time delivery rate
US$ 160,000+
R&D staffs
Visit Store


ZHC618F-1000W/light-weight Compact FM Stereo Transmitter

1000W FM TX

1. Overview

ZHC618F-1000W/LIGHT stereo FM radio transmitter is an integrated high-quality FM transmitter that stereo-encodesthe input left and right channel audio signals and adjusts the FM modulation to the broadcast band, then RF amplify to the 1000W output power for wireless broadcasting. The transmitter adopts the most advanced software radio technology to achieve the international leading level of product performance indicators.


With a new large-scale field-programmable gate array (FPGA) and direct digital frequency synthesis (DDS) technology at up to 5G, the product achieves the highest technical specifications in the industry to date, providing listeners with a CD-like sound experience.


The product consists of audio interface unit, digital processing and frequency modulation unit, RF power amplifier unit, human-machine interface unit, communication interface unit, clock synchronization unit and power supply unit. The transmitter is installed in a 19-inch 2U standard chassis, intensive design, small size and light weight. The whole transmitter is designed with high reliability, which makes the product run continuously and stably for a long time.


2. Technical characteristics and principle block diagram

Product technology has the following technical features:

• Full process digital processing to achieve a perfect auditory effect of CD-likesound quality

• Full-scale digital processing with large-scale field-programmable gate array (FPGA) technology

• Direct digital frequency synthesis (DDS) technology at speeds up to 5G to peak transmitter specifications

• High reliability microprocessor (ARM) technology as the primary controller

• Support for multiple audio source inputs (transmitters can be automatically selected by priority):

AES/EBU digital audio signal input (highest priority)

Analog stereo analog audio signal input (2nd priority)

MPX stereo composite signal input (3rd priority)

• Supports one RDS or SCA subcarrier input

• Upgradeable to FM synchronous broadcast transmitter

• Electronically controlled AGC controls output power zero drift

• Perfect over-current, over-voltage, over-temperature, over-power, standing wave ratio alarm and protection

• One-touch shuttle quick keyboard input

• Real-time display of operating parameters using OLED

• With TCP/IP, RS232 communication interface

• 19-inch standard chassis, height 2U


The Transmitter Block Diagram:


3. Technical specifications

Electrical Specifications:

1. Frequency Range                           87MHz~108MHz

(other frequencies can be customized), stepping 10kHz

2. Carrier frequency tolerance                 ±200Hz

3. Output power                               0~1000W continuously adjustable

4. Output power tolerance                     ±1dB

5. Output impedance                          50Ω

6. RF output connector                        7/16” or 7/8”

7. Residual wave radiation                    < -70dB

8. Parasitic amplitude modulation noise       < -50dB

9. Pilot frequency deviation                   ±0.1Hz

10. 38KHz residual component in the S signal < -50dB

11. 100% modulation frequency offset        ±75KHz

(maximum modulation frequency offset 112.5KHz)

12. Audio pre-emphasis                     0μs/25μs/ 50μs/75μs optional

13. Signal-to-noise ratio                    92dB(1kHz, 100% modulation)

14. Stereo separation                       73dB (L R, R L)

15. Distortion                              0.01% (30Hz ~ 15000Hz, 100% modulation)

16. Frequency response                    ±0.01dB (no emphasis, no de-emphasis);

±0.05dB (emphasis, de-emphasis)

17. Left and right channel level difference  0.01dB(100% modulation)

18. Analog audio input                     -12dBm ~ +8dBm

19. Analog audio input impedance          600Ω balance

20. AES input impedance                   110Ω balance

21. AES input level                         0.2~10Vpp

22. AES sampling rate                      30kHz ~ 96kHz

23. RDS input impedance                   10kΩ unbalance

24. RDS input level                         0dBm

25. MPX input impedance                   10kΩ unbalanced

26. MPX input level                         1.0Vpp

27. Input audio Level Gain                  -15dB~+15dB Step 0.1dB

28. Heat dissipation method                Forced convection

29. Power supply voltage                   100VAC~265VAC/ 47Hz~63Hz


Physical Specifications:

30. Chassis standard                      19" inch

31. Chassis size                        2U (width 484mm × height 88mm × depth 500mm)

32. Total weight                            13.5Kg(including packaging)

33. Operating environment temperature    -10 ° C ~ +45 ° C

34. Relative humidity                       <95%

35. Altitude                                 <4500m



Company Information


3kw FM Stereo Transmitter3kw FM Stereo Transmitter


Q1. What these equipments used for?

A1. We are original manufacturer in FM Radio & TV Broadcasting equipments; they are professional used for FM Radio & TV Broadcasting Station (Transmitting equipment.)


Q2. What equipment & solution your company can provide?

A2. We can do complete solution for FM Radio Station System. It includes:Studio--Link--Transmitter--Cables--Antenna.

We also can provide complete Transmitting part of TV Station. It includes:Link—Transmitter—Cables—Antenna.


Q3. How large areas can One Station cover?

A3. One FM or TV Station can cover one city or one town.

The Maximum cover ranges of one station can not over 100KM Radius because the Earth is Curve.

You can use Multiple Stations & Different Frequency to cover larger area.


Q4. How do I choose suitable equipments for my station?

A4. The most import factors are Power and Frequency.

We need to know the Power and Frequency you need exactly.

How long the distances do you want to cover in Radius?

How height your Antenna can be installed?


Q5. How to calculate Broadcasting equipment Cover Range?

A5. The Cover Range depends on 4 factors:1. Power from Transmitter; 2. Height of Antenna; 3. Gain from Antenna; 4. Around Environment.

Then we can know the cover range of your station.




3kw FM Stereo Transmitter3kw FM Stereo Transmitter3kw FM Stereo Transmitter3kw FM Stereo Transmitter



ZHC(China)Digital Equipment Co.,LTD
ADD: Building 5th, No.23, Jugong Rd. Binjiang District, Hangzhou, China

English Website: http://www.zhcfmtv.com/
Chinese Website: http://www.zhcfm.com/

Name: Mike Cai
Tel: +86-571-8238-1886
Mobile: +86-135-8821-5572 (WhatsApp; Wechat)