ProductsFM Transmitter100W-1000W

  • Product Name:

    FMUSER FU-1000C 2U 1000W FM Radio broadcast Transmitter +RDS Encoder

  • Categories:100W-1000W / 500W-5KW Professional Transmitter / FM Transmitter / Products
  • Date:2021-04-26
  • Update Time:2021-04-26 15:48:03 FMUSER FU-1000C 2U 1000W FM Transmitter This is a 1000W FM broadcast transmitter you don’t want to miss (shouldn’t miss as well): FMUSER FU-1000C 1KW FM radio broadcast transmitter. If you wan ...
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Product Description

Update Time:2021-04-26 15:48:03

FMUSER FU-1000C 2U 1000W FM Transmitter

This is a 1000W FM broadcast transmitter you don’t want to miss (shouldn’t miss as well): FMUSER FU-1000C 1KW FM radio broadcast transmitter.

If you want to choose the complete broadcasting equipment on sale, choose FMUSER; if you want to choose the powerful kilowatt FM radio transmitter, choose  FU-1000C.

After a long time of the paramedical test by our technicians, this 1000W FM broadcast transmitter is well-performed in many aspects, especially in terms of performance and practicability, which takes leadership in the global broadcast equipment market (better than 90% of the similar FM radio broadcast transmitters)!

In terms of appearance, this silver-gray streamlined design compact 1000W FM radio transmitter may not satisfy you, but in terms of price, it can definitely attract you. FU-1000C has been applied in many large, medium, and small FM radio stations. This is due to its low price and excellent product quality. Being a budget-price and high-quality FM radio broadcast transmitter, the FU-1000C FM broadcast transmitter has been successfully attracted many radio station operators around the world.

Additionally, the FU-1000C broadcast FM transmitter can also be used efficiently in a variety of application scenarios, such as the most popular drive-in church broadcasting and drive-in theater broadcasting, etc.

In a word, the FU-1000C FM radio broadcast transmitter of FMUSER is able to broadcast more than you can imagine.

Let’s see why most people recommend this 1000W FM broadcast transmitter!

When purchasing an FM stereo transmitter, what elements should you pay attention to? Most people will consider the brand first, followed by the price. In fact, some parameters of an FM broadcasting transmitter are also important reference conditions for purchase. FMUSER hereby takes FU-1000C as an example in the following content to introduce several important parameters you should consider before purchasing a stereo FM transmitter.

First, you should consider its signal-to-noise ratio( AKA: SNR). When you or your customers run a radio station, what you want most is to let all the audience listen to the radio signal with little or no noise. If your radio station can’t send high fidelity signal, but full of noise signal, you may lose your loyal audience! FMUSER’s FU-1000C is an FM stereo transmitter with ultra-high signal-to-noise ratio (up to 92  dB, ordinary FM radio transmitter only has a signal-to-noise ratio of less than 80  dB). Just get a low budget FU-1000C FM broadcasting transmitter for your radio station, and you don’t need to worry about all kinds of annoying broadcast noise anymore!

Second, you should consider the stereo resolution (AKA: Separation). This is a common sense recognized by broadcasting experts: if the stereo separation is poor, the stereo sense will be weakened. The minimum stereo separation index stipulated by the International Electrotechnical Commission is greater than or equal to 40  dB at 500 Hz, which is also the value that most FM broadcasting transmitters can achieve. However, the FU-1000C stereo FM transmitter of FMUSER can achieve an amazing 73  dB! Do you want your radio audience to receive great stereo sound from the radio station you own? The FU-1000C  fm transmitter for radio broadcast is your best choice!

What’s more, you should consider the distortion. As you know, not every signal you input to the stereo FM transmitter can be completely transmitted from the same position. Although the amplifiers of some imprecise FM audio transmitter undertake the function of signal amplification, they will also cause signal distortion. According to the complex distortion test results of FMUSER’s technical team, the distortion test result of FU-1000C FM audio transmitter is only 0.01%, which is far lower than that of ordinary broadcasting FM transmitter. This is such a blessing for those who pursue perfect radio FM transmitter!

Finally, you should consider its frequency response. The frequency response of ordinary power amplifier is about (+ / -) l-3  dB from 20 Hz to 20000 Hz; the frequency response of high-quality power amplifier is about + / – 0.1  dB from 20 Hz to 20 kHz, while the frequency response of FMUSER’s FU-1000C FM stereo transmitter is + / – 0.05  dB, which is one of the main reasons why FU-1000C can serve most professional radio stations.

Of course, you can use the accurate data obtained by FMUSER test team after testing FU-1000C radio FM transmitter as a reference to choose other FM stereo transmitters, but FMUSER sincerely hopes that you can benefit from your choice. If you think the above information are not complete enough and want to get more information about FMUSER FU-1000C high power FM transmitter, please continue to read!


Why Most Broadcasters Choose FU-1000C FM radio station transmitter?

Please note that the value of the FU-1000C FM audio transmitter is much more than the above parameters. The FU-1000C broadcast FM transmitter is an high power FM transmitter equipped with professional audio equipment and digital audio standard (AES-3). Its professional FM broadcast capability can make you so blown away by the efficiency of it.

FU-1000C FM broadcasting transmitter adopts the way of analog audio signal output, with the advantages of high information density, accurate resolution, simple operation mode (analog signal processing can be realized only through analog circuit components), which can help you quickly build a professional radio station

The embedded MPX interface truly realizes the two functions of high-quality music input and high-quality audio mixing, so that you can enjoy the ultimate music enjoyment brought by high-quality stereo audio processor peripherals

FU-1000C broadcast FM transmitter equipped with RDS input interface makes your broadcast richer. You can communicate with your audience in addition to audio so that your audience can get more information about your radio broadcast!

FU-1000C high power FM transmitter does not choose the traditional LCD display screen but is upgraded to an OLED display screen. This kind of low power consumption, ultra-light, and thin light-emitting device far exceed the traditional LCD display screen in brightness, response speed, clarity, flexibility, and luminous efficiency, which can help you carry out diversified custom settings for the machine efficiently.

FU-1000C high power FM transmitter equipped with front one button shuttle quick knob input is committed to creating an excellent user experience. One button shuttle operation makes your custom operation more convenient and fast

The FU-1000C fm transmitter for radio broadcast has a built-in web control page, which can directly configure the working parameters and view the signal measurement indicators by browsing the web page, saving your time cost and improving work efficiency

Equipped with a complete communication interface (serial port, network port, can port, SMS modem interface), the FU-1000C fm stereo broadcast transmitter has the characteristics of durability and practicality, effectively improving the actual endurance of your radio station.

The FU-1000C fm stereo broadcast transmitter can upgrade synchronous broadcast transmitter without shutting down the machine. If you want to avoid signal interference caused by cross-coverage and realize the same program on the same frequency passing through different radio stations in different regions, this function can just meet your needs. The FU-1000C fm stereo broadcast transmitter uses unified clock signal and tone Frequency signal input technology can help you build a comprehensive radio signal coverage network in a large area

What? The parameters above are not enough? Let’s take a look at the technical parameters of the FU-1000C fm transmitter for radio broadcast observed by our engineers!

Technical characteristics:

Product technology has the following technical features:

The product technology has the following technical characteristics:

The Transmitter Block Diagram:

Technical Specifications:

Electrical Specifications:

  • Modulation:              Frequency Modulation
  • Frequency stabilization method and DDS frequency synthesizer
  • Nominal transmission frequency:           87 MHz ~ 108 MHz (other frequencies can be customized)
  • Frequency deviation             ± 200 Hz
  • The frequency step value is less than 10 KHz
  • The output impedance is less than 50 Ω
  • RF output connector L29 or other specified connector
  • The output power is 0 ~ 1000W continuously adjustable
  • The output power deviation is          ± 10W
  • RF efficiency                    > 75%
  • The pilot frequency deviation is ± 0.1 Hz
  • The residual component of S signal is less than 38 KHz and less than – 50  dB
  • 100% modulation frequency offset ± 75 KHz (maximum modulation frequency offset 112.5 KHz)
  • In band residual radiation < – 70 dB
  • Higher harmonic radiation < – 65 dB
  • Parasitic AM noise < – 50 dB

Audio Index

  • Analog audio input                    – 12 dBm to + 8 dBm
  • Analog audio input impedance:   600 Ω balance
  • SNR                                      ≥ 92 dB (1 KHz, 100% modulation)
  • Stereo resolution                  ≥ 73 dB (L → R, R → L)
  • Distortion                                   ≤ 0.01% (30 Hz ~ 15000 Hz, 100% modulation)
  • Frequency response: ± 0.01 dB (without weighting and de weighting); ± 0.05 dB (with weighting and de weighting)
  • Audio pre emphasis:             0 μ s / 25 μ s / 50 μ s / 75 μ s
  • Left and right channel level difference         ≤ 0.01 dB (100% modulation)

Digital Audio Index

  • Input level gain                     – 15 dB ~ + 15 dB in 0.1 dB steps
  • The input impedance of MPX is unbalanced at 10K Ω
  • MPX input level                    < 1.0vpp
  • The RDS input impedance is unbalanced at 10K Ω
  • RDS input level:               < 0 dBm
  • AES input impedance            < 110 Ω balance
  • AES input level:                     0.2 ~ 10vpp
  • AES sampling rate:                30 KHz ~ 96 KHz

Physical Index

  • The size of chassis is less than 2U (width 445 MM × height           88 MM × depth 500 MM)
  • The size of chassis is less than 2 u (width 11303 inch × height 2235 inch × depth 12700 inch)
  • The total weight is less than 13.5 Kg
  • The total weight is less than 29.7 lbs
  • High speed air cooling
  • Chassis standard: 19 inches


  • External control interface: TCP / IP, RS232, CAN bus
  • The synchronous broadcast function supports external 10 MHz / 1 PPS clock input
  • The protection mode supports high temperature and high VSWR protection

Work Environment

  • Relative humidity       < 95%
  • Altitude               < 4500 M
  • Power supply voltage: 100 VAC ~ 265 VAC / 47 Hz ~ 63 Hz
  • Operating ambient temperature – 10 ℃~ + 45 ℃

The severing of the increased busy traffic, it is now interested in various countries in Africa to insert RDS signals when constructing a transmitting station, so as to realize the most economical broadcast of some traffic information by means of coverage of FM signals.

b)     Traffic Program (TP):

With the TA and TP functions of RDS, RDS helps radio in-vehicle users to obtain traffic information faster, reduce congestion in the city, and increase the listening rate of the radio station.

c)     Alternative Frequency(AF):

RDS-AEncoder1 (6)

RDS AF help drivers automatic frequency switching between the Relay stations.

Inserting the RDS signal in the transmitter can also automatically switch between multiple different frequency broadcasts in the same program. The receiver automatically switches the substitute frequency AF by detecting the PI code in the RDS signal to ensure that multiple relay stations are passed. Broadcast stations that achieve nationwide coverage achieve seamless coverage and seamless listening. When the car passes the signal superposition zone between the two frequencies, the AF function of the RDS will automatically switch to the same program at different frequencies.

  1. 3.      How is the RDS Alternative Frequency (AF) work?

Here is a video about ow the RDS AF replacement frequency works on youtube.

  1. 4.      What is needed to build an RDS broadcast?

A: A RDS Fm radio transmitter equipment kit list:

1)      FMUSER RDS-A encoder

2)      FMUSER FSN-1000W Fm transmitter with 57khz

3)      RDS encoding software

4)      Cable and antenna

  1. 5.      How can I build my rds channel on my Existing transmitter system?

1)      Confirm whether the current transmitter already has a 57khz input interface.

2)      Purchase FMUSER’s RDS-A encoder to insert your digital signal into your radio broadcast.

3)      Run the Rds software on your computer and insert your radio station logo, traffic information…

4)      Use a RDS radio to check the digital information you provide.

  1. 6.      Do I need to pay for your RDS software at an additional cost?

No, You just need to purchase FMUSER RDS-A encoder and FSN series transmitter, we provide RDS software for free.

  1. 7.      What is the different between RDS fm radio station and general radio on the radio?

The following three images illustrate how RDS can be used on an FM radio station; the latter two were taken when the radio was tuned to Nottingham radio station Trent FM. All the images are of the display on the SonyXDR-S1 DAB/FM/MW/LW portable radio.

Fmuser-Rds-A-Encoder-Radio-Station-Transmitter (8)
  1. 8.      What are the characteristics of the FMUSER RDS-A encoder, and what is the difference compared to innovonics RDS encoder?

Innovonics RDS encoder is a good products , The biggest difference should be the same function, and we offer more economical encoders.

Let’s look the the characteristics:

Technical Specifications

Supply voltage12 V DC stabilized
Supply current280 mA
Signal connectorsunbalanced BNC
Data connectors1x USB (port 1), 1x Ethernet (port 2, 3, 4)
Network protocols supportedHTTP, SNTP, TCP, UDP, DHCP, DNS, SNMP
USB speedsoftware switchable 1200, 2400, 4800, 9600, 19200 bps
USB Mode1 stop bit, 8 data bits, no parity, (no flow control),

ASCII or UECP (SPB 490)TA switching software or external switchTA/EON1TA input TTL with 10 kΩ pull-up, level or falling edge activatedProgram sets 2Program set switching ASCII command, UECP command or external switchProgram switch input TTL with 10 kΩ pull-up, level controlledRDS Services supported



RDS signalSubcarrier frequency 57 kHzBandwidth ± 2.4 kHz (50 dBc)Output level adjust 0.0 to 4.0 V p-p in 256 stepsPhase shift adjuststereo transmissionFull range, in 9.5 deg. steps

Audio/MPX/Pilot inputRecommended load impedancemono< 10 kΩstereo MPX< 2 kΩRecommended MPX voltage 1.3 – 8.0 V p-pPassthrough voltage gain2 Hz – 100 kHz1 (0 dB)Pilot tone level min. 120 mV p-p

– recommended FM deviation

 6.8 kHzPilot PLL capture range 8 HzStereo encoder pilot frequency requiredstereo transmission19000 Hz ± 2 Hz

OutputOutput impedance 100 ΩRecommended load impedance > 70 Ω, < 1 nF, no DC offsetMax. output voltage (RDS + MPX) 9.0 V p-pRecommended RDS level 3 – 11 % of MPX

Appearance and Illustration

Fmuser-Rds-A-Encoder-Radio-Station-Transmitter (9)
Fmuser-Rds-A-Encoder-Radio-Station-Transmitter (10)
Number Name Explain
1 12V DC Power supply connector. See section 3.3 for details.
2 Ethernet Ethernet RJ-45 connector.

Use a standard (direct) cat 5 Ethernet cable for connection to the Ethernet switch, router or wall-socket.

The Ethernet control includes internal website (referenced as “Port 2”) and two independent user configurable general purpose ports (referenced as “Port 3” and “Port 4”) designated for remote control via TCP or UDP protocol.

The encoder operates also with no cable connected.


USB standard B type connector. This port is referenced as “Port 1”.

Use the USB for initial setup of the encoder or for its local control.

The encoder operates also with no cable connected.

4 Output BNC

RDS signal output to transmitter, modulated at 57 kHz subcarrier.

If the Loop/Side switch is set to the LOOP position, the Output is a sum of the RDS signal and the signal fed to the Input BNC connector.

5 Input BNC

Optional input for synchronization to the pilot tone or for mixing the RDS signal with existing modulation signal.

6 Loop/SIDE

Allows the input signal to be added to the output signal.


Optional logical inputs for direct control of some RDS services (TA, PROGRAM).

The connector is a standard 6-pin PS/2 type.

Packing List

  1. 1pcs FMUSER RDS-A Encoder
  2. 1pcs USB Cable
  3. 1pcs 1000w fm Transmitter

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