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3KW Digital FM Radio Transmitter

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Company Information

Shuyang Renren Technology Co., Ltd.

CN Manufacturer, Trading Company
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Quick Details

Place of Origin: Jiangsu China
Brand Name: RRKJ
Model Number: RRKJ110
size: 574mm(W)*1000mm(H)*880mm(D)
Application: Professional radio station
OEM: Available
Certificate: ISO9001:2008, BV, SGS
Output Load Impedance: 50Ω
Output power: 0-3000w
Frequency: 87-108Mhz
Model Number: RRKJ618F-3000W
RF Output Interface: 7/8' or 1-5/8' Flange
Deviation: ±75kHz
Selling Units: Single item
Single package size: 195X7.2X120 cm
Single gross weight: 150 KG

3KW Digital FM Radio Transmitter 


 618F-3000W/M2 is an excellent FM stereo transmitter for professional radio stations. It is reliable and high Performance. All in one 1meter rack, compact design. It uses Digital Signal Process (DDS+DSP)Technology, high reliability switch power supply modules. It consists of center control module, Dual-Exciters, 4pcs 1KW FM amplifier modules, a perfect BPF.




  • Hearing similar to CD
  • The 3KW Power Amplifier is Installed in one 3U 19inch rack.
  • 4pcs 1KW RF power modules inside. Total output power is extremely stable thanks to AGC (Automatic Gain Control).
  • Compact Design, small size
  • Digital 100W exciters (DSP+DDS).
  • Analog and digital (AES/EBU) audio signal input directly.
  • 8-inch Color LCD with touch panel displays all the parameters in real time.
  • Intelligent protection functions by centre control module, like over PF, over SWR, over Temp, Over V, Over I.
  • TCP/IP/RS232 Communication interface ready for remote system.



1.Frequency Range:                      87.0MHz~108.0MHz
2.Frequency Setting step:             10KHz
3.Carrier Frequency precision:       ±200Hz
4.Residual Wave Radiation:           ≥67dBc
5. Audio Input Impedance:            600Ω, Balance (for analog)

    110Ω, Balance (for digital AES/EBU)

6.Stereo Separation:                      50dB(30Hz~15KHz)
7.Audio Input Level:                    ±10dBm
,step 0.01dB
8.S/N:                                        ≥75dB(30H
9.Audio Harmonic Distortion:         <0.1%
10.Audio response:                      ±0.1dB(30Hz
11.Output Load Impedance:          50Ω
12.Output Power:                        0~3000W adjustable
13.Pre-emphasis:                         0μS
14.Deviation:                          ±75kHz
15.Pilot Frequency:                 19 kHz±1Hz Pilot Signal Modulation: 8%
16.Sub-carrier Suppression:     ≥65dB
17.RF Output Interface:            7/8' or 1-5/8' Flange

18.Size:                                 19inch rack



19.Weight:                              150KG



Company Information










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.

Q6. Is the Frequency Adjustable?

A6. FM Radio Band Frequency is 87~108MHz, TV Band Frequency includes UHF/VHF band.

For FM Radio Transmitter; Power Below 2KW is all adjustable. Above 2KW would be narrow.

For TV Transmitter; all Frequency Band is very Narrow, only can contain around 3 Channels; so it’s not adjustable.

Q7. Is your Analog TV Transmitter can be upgraded to Digital?

A7. Yes, we can. But the Frequency Band should be the same.

The only difference between Analog & Digital TV Transmitter is its TV Modulator.

After upgrade to Digital, the Power from TV Transmitter reduced 5 times.

For example: 1KW analog TV Transmitter can be upgraded to 200W Digital TV Transmitter.

Q8. How to do installation of these equipments?

A8. For small power station, the equipments are very easy for installation.

For large power station, we can send our engineer to your country to help you do the installation, but you should pay the cost.

We also can do training for your engineer here in our company.

Q9. How to operate these broadcasting equipments?

A9. We provide All-English user manual; All-English operation software in our equipment.

We also can do training for your engineer here in our company.

Q10. What about after sales?

A10. The warranty time is one year after goods leaving factory.

We can provide technical support from internet or in our company.

We can send spare parts to you directly when the equipment damaged.