Professional FM modulator with CD-quality broadcasting DSP DDS AES EBU 1U

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FM modulator

Packaging & Delivery

Selling Units:
Single item
Single package size: 
50X30X5 cm
Single gross weight:
4.0 kg
Package Type:
wood packing
Lead Time :
Quantity(Unit) 1 - 1 >1
Est. Time(days) 7 To be negotiated
  • Professional FM modulator with CD-quality broadcasting. All digital technology executes analog FM broadcast. DSP(Digital Signal processor)+DDS(Direct Digital Synthesis frequency) . Advanced MCU control system+LCD displayer. Columnar dynamic display audio signal . Supporting AES/EBU standard digital audio input. 0dBm~20dBm RF level output. 19 inches cabinet,1U high.



  • Adopting new digital signal process(DSP) technology.
  • Direct digital synthesis frequency(DDS) technology.
  • Advanced MCU control system.
  • Columnar dynamic display audio signal.
  • Perfect audio effect of CD sound.
  • Supporting AES/EBU standard digital audio input.
  • The standard frequency of RF output is 87.00-108MHz with the step of 10kHz.
  • Free customization within the RF output frequency range.
    Electric modulating AFC controls the input level to be 75dBμV-115dBμ with the step of 1dB
  • 122*32 lattice blue screen LCD synchronously displays the work parameters of the modulator.
  • RS-232/485 serial communication remote control and telemetering.
  • 1U,19-inch standard chassis structure.

Technical specifications:

  • Power voltage        AC220V±10% 50Hz
  • Power consumption          <25W
  • RF frequency range        87.00MHz~108.00MHz,step10kHz
  • Output power          95dBμV~115dBμV
  • Output impedance         75Ω or 50Ω
  • RF output connector          F(female)
  • Carrier frequency precision ±500Hz
  • Harmonic suppression    ≥ 65dB
  • Parasitic amplitude modulation ≤-70dB
  • Modulation frequency deviation ±75kHz(100%modulation)
  • Audio pre-emphasis    0μs,50μs,75μs
  • Level difference of right and left <0.1dB(100%modulation)
  • Signal-to-Noise     80dB(type),1kHz,100%modulation
  • Audio response          ±0.1dB,10Hz~15000Hz
  • Distortion             <0.1%,10Hz~15000Hz
  • Stereo seperation         60dB(type),30Hz~15000Hz
  • Pilot frequency        19kHz±1Hz
  • Pilot frequency modulation     8%~10%
  • Analog audio input impedance      600Ω,balance
  • Analog audio input level        -10dBm~+10dBm,step1dBm
  • Digital audio input impedance    110Ω,balance
  • Digital audio input level        0.2~10Vpp
  • Digital audio sample rate     30kHz~96kHz

Package Include:
1 × FM modulator (1U)


How far(long) the transmitter cover?

The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.


EXAMPLE 5W FM Transmitter use in the city and hometown:

I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).

I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).

I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).


Below are the approximate range of different power FM Transmitters. ( The range is diameter )

0.1W ~ 5W FM Transmitter :100M ~1KM

5W ~15W FM Ttransmitter : 1KM ~ 3KM

15W ~ 80W FM Transmitter : 3KM ~10KM

80W ~500W FM Transmitter : 10KM ~30KM

500W ~1000W FM Transmitter : 30KM ~ 50KM

1KW ~ 2KW FM Transmitter : 50KM ~100KM

2KW ~5KW FM Transmitter : 100KM ~150KM

5KW ~10KW FM Transmitter : 150KM ~200KM


How to contact us for the transmitter?

Contact: Sky Blue  
Cellphone: +8615915959450
WhatsApp: +8615915959450
WeChat: 727926717   
QQ: 727926717
Skype: sky198710021

Tell me 
1.How far you want to cover in radius ?
2.How high will you install the antenna ?
3.Where are you from ? What is your detail address, so that we can check the enviroment there.
And we will give you professional advice.


About Us

We specialized in production and sales of FM / TV Transmitter , FM / TV antenna , the FM / TV transmitter accessories. We have been exporting FM /TV transmitter for 10 years. We have clients all over the world, not only the resellers but also the consumers. With 10 years experience in this field ,we have professional team and excellent aftersales service. We dedicated in supplying the best quality products with competive prices and excellent customer sevice! If you have any question about it , No matter you buy or not, please feel free to tell us your questions,we are very willing to help you and solve your problems. 


Our Factory

We have modernization of the factory . You are welcome to visit our factory when you come to China.

At present , there are already 2369 customers around the world visited our Guangzhou Tianhe office . If you come to China , you are welcome to visit us .


At Fair

This is our participation in 2012 Global Sources Hong Kong Electronics Fair Customers from all over the world finally have a chance to get together.


Where is Fmuser ?

You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .

FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair guangzhou railway stationxiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .


Contact: Sky Blue 
Cellphone: +8615915959450
WhatsApp: +8615915959450
WeChat: 727926717 
QQ: 727926717
Skype: sky198710021

Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620