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FMUSER FSN-1000R FM Radio Broadcast Relay System

Total:6800 USD

Item:6800 USD   Shipping:0 USD

 FMUSER FSN-1000R FM Radio Broadcast Relay System

FMUSER FSN-1000R FM radio relay repeater is the latest product developed by FMUSER in 2019. The all-in-one product includes digital demodulation, digital processing and modulation, RF power amplifier, power supply, all modules in a 2U standard chassis, all signals both input and output from the rear panel.
FMUSER FNS-1000R FM radio relay system includes receiving antenna,FSN-1000R FM radio relay repeater, transmitting antenna, connecting cables and connectors. The FM signal can be received by the receiving antenna, the FSN-1000R FM relay repeater will do demodulates, processes, modulates, RF amplifies, and the transmitting antenna can directly broadcast again , this system can meet the needs of various occasions.
Many users also call it as local: fm relay station, broadcast relay station, relay transmitter, complementary station, broadcast translator, repeater, re-broadcaster.
I Already have a radio station, how to expand my fm transmitter coverage?
You can use the FMUSER FNS-1000R FM radio relay system to receive the FM signal of the main station and broadcast it again at the new station. The power of the FNS-1000R relay broadcasting system transmitter is 1KW, so the coverage of 50KM can be increased for each additional station. And the source of the studio program is exactly the same as the main station.
How to re-broadcast my station to whole country of 100KM-200KM with a limited budget?
The same principle is as above, five sets of FMUSER FNS-1000R relay broadcasting system can meet the demand, and reduce the waste of signal coverage in the unmanned area, only need to be placed in a densely populated place.
How to transfer the studio audio to the transmitter?
As we all know, STL can achieve this function, but STL must be accessible point-to-point transmission. If there is a mountain or other obstacles in between, you can use FM Transmitter to broadcast the audio from studio to transmitter, because the FM RF signal can be bypassed, and finally the FMUSER FNS-1000R repeater can receive high quality audio from the studio.
How to transfer studio source to transmitter stations in different locations?
STL can only be point to-point. If there is a one-to-many point, multiple sets of STL systems must be used, and the price is high, the installation is troublesome, and it is seriously affected by the environment. Now we only need to install the FMUSER FNS-1000R relay broadcasting system at different transmitter sites, which solves the problem of program transmission and also solves the problem of broadcasting stations, because FMUSER FNS-1000R is not only a receiver but also a broadcaster.
In short, FMUSER is always working on the most economical, stable and reliable system solutions to solve customers' problems in broadcasting.
The FMUSER FNS-1000R relay system has many other main features as follows:
1. Adopt digital FM receiving and demodulating technology to ensure clear demodulation sound quality.
2. Using FPGA+DDS technology to implement full digital FM modulation technology, so that the FM emission index reaches the top level.
3. Using high reliability ARM architecture microprocessor technology as the main controller.
4. Support input of wireless RF receiving audio, two AES/EBU digital audio signals, one analog stereo audio and one MPX stereo composite signal, etc.
5. Support one way RDS or SCA input.
6. AGC controls output power to ensure zero deviation of output power.
7. Perfect over-current, over-voltage, over-temperature, over-power, standing wave ratio alarm and protection function.
8. Using OLED to display working parameters in real time.
9. Use high-gain directional FM receiving antenna to receive signals (even the signal is very weak ) and and re-broadcast .
10. Re-broadcast power up to 1000W, with high gain dipole antenna, cover radius up to 50KM.
1. Customers who has a main radio station and want expand coverage.
2. Make up coverage in mountainous areas.
3. Limited budget to expand coverage of the radio station.
4. 100KM or 200KM coverage , even for whole country coverage.
5. 360 degree omnidirectional transmission studio program.  
6. There are obstacles between the studio and the main radio station.
1. FMUSER FSN-1000R FM relay repeater

FM receiving frequency range
76MHz ~ 108MHz, stepping 10kHz (can be customized other frequencies)
FM transmission frequency range
87MHz ~ 108MHz, stepping 10kHz (can be customized other frequencies)
Carrier frequency deviation
Output Power
0~1000W continuously adjustable (other power can be customized)
Output power stability
<±3% (ambient temperature -10 °C to +45 °C)
RF output impedance
RF output connector
L27-50K (can be customized other connectors)
In-band residual wave
  < -85dBc
Higher harmonic
< -80dBc
Parasitic amplitude modulation
< -60dB
Analog audio input impedance
600Ω, balanced card
Analog audio input level
-15dBm to +15dBm
AES/EBU input impedance
110Ω, balance card
AES/EBU input level
-60dBFS to 0dBFS
MPX input impedance
10KΩ, unbalanced BNC
MPX input level
-15dBm to +15dBm
Audio level gain
-15dB~+15dB step 0.1dB
RDS/SCA input
Unbalanced BNC
Audio pre-emphasis
0μs/25μs /50μs/75μs optional
Stereo signal to noise ratio
≥92dB, 1KHz, 100% modulation
Total harmonic distortion
<0.02%, 30Hz~15000Hz
Audio frequency response
±0.01dB, no weighting, no weighting; ±0.05dB, weighting and weight removal
Stereo resolution
≥73dB, 30Hz~15000Hz
Left and right channel level difference
<0.02dB (100% modulation)
19KHz/MPX output impedance
600Ω, unbalanced BNC
19KHz/MPX output level
-15dBm to +15dBm
Heat dissipation method
Forced convection
AC90V~AC265V 47Hz~63Hz
Operating temperature
-10 ° C ~ +45 ° C, no condensation
Chassis size
19 inches, 2U (500mm × 484mm × 88mm)
Total Weight

2.FMUSER FU-DV2 Broadcast Antenna


Frequency range
87.5-108 MHz
Input Impedance
50 ohm
EIA flange according to system power rating
<=1.3:1 MAX
according to requirement
Horizontal Pattern
Any type according to the customer requirement
Vertical Pattern
Null fill, beam tilt and special requirements on demand
Other Facilities
The antenna system can be supplied in split feed with two equal half antennas, each half can accept full power
5kg with hard ware mounting
Wind surface
Wind load
9.8kg(wind speed at 160km/h-without radome )
Max wind velocity
Wind load
9.8kg(wind speed at 160km/h-without radome )
Max wind velocity
Materials: External parts
Aluminum anticorodal
Internal parts
Height of array
Subject to number of bays(refer to table)
Package Volume weight
Packing Size


3. FMUSER FM Receiving Antenna
Frequency Range
88-108 MHz
input resistance
Interface form
F-J male (English)
Standing wave ratio
Polarization mode
Horizontal or vertical
Antenna weight

* FMUSER FSN-1000R FM relay repeater * 1 set
* FM radio transmission power cable *1pc
* FU-DV2 dipole antenna *1pc
* 1/2 feed cable L29J--L29J -12 30meters with connectors *1pc
* FM directional receiving Yagi antenna *1pc
* FM directional Yagi antenna feeder 20meters with connectors *1pc

1. What is the radio relay system?
-- The radio relay system is for receiving and re-broadcast of the main radio station signal.
2. Why the relay radio station can not broadcast same frequency with the main radio station ?
-- Because the coverage of the transmitter is a circle, the overlapping parts of the two circles will have the same frequency interference. Sounds like a repeating sound.
3. How much is the difference between the main station and the relay station?
--Minimum difference of 0.5mhz. 
4. How many meters should between the receiving antenna and the broadcasting antenna?
-- At least 3 meters apart.
5. How much delay?
- The delay between the main station and relay  stations is 0.1 second.
6. Whether the audio input can be switched automatically?
-- Does not support automatic switching.
7. What advantages does the radio relay system has over STL?
* No receiver limit.
* The signal is more stable and can adapt to more complex environments.
* There are two receivable frequencies that can be used.
* The operation is simpler, there are not many setup options.
8. What is the difference between fm relay station and synchronous broadcast?
The fm relay station converts to an audio signal by receiving a signal from the FM main station and transmits it again.
Synchronous broadcasting requires independent audio transmission lines, such as optical fibers, networks, microwaves, satellites, etc. to transfer the audio signals. 
The fm relay station requires at least two frequency points for continuous transmission and coverage.
Synchronous broadcast only needs one frequency point to cover.
You can get the below recommendation as the main radio station.

30KM Transmitter Package 1x 1000W FU-1000C FM TX 30km Complete transmission package
1x 1-Bay FU-DV2 Dipole Antenna
1x 30M 1/2" Coaxial Cable with Connectors
50KM Transmitter Package 1x 1000W FU-1000C FM TX 50km Complete transmission package
1x 2-Bay FU-DV2 Dipole Antenna
1x 40M 1/2" Coaxial Cable with Connectors
30KM Studio Package 1x 1000W FU-1000C FM TX 30km Complete Studio package with 1KW FM transmitter and 1 bay antennas
1x 1-Bay FU-DV2 Dipole Antenna
1x 30M 1/2" Coaxial Cable with Connectors
1x Studio Package (one 12way mixer, two headphones, two speakers, one audio processor, one 4way hybrid telephone, two microphones,two MIC stands, two BOP covers, one On Air LED )
50KM Studio Package 1x 1000W FU-1000C FM TX 50km Complete Studio package with 1KW FM transmitter and 2 bay antennas
1x 2-Bay FU-DV2 Dipole Antenna
1x 40M 1/2" Coaxial Cable with Connectors
1x Studio Package (one 12way mixer, two headphones, two speakers, one audio processor, one 4way hybrid telephone, two microphones,two MIC stands, two BOP covers, one On Air LED )

Total:6800 USD

Item:6800 USD   Shipping:0 USD


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?

Call me +8615915959450 OR
Email me sky@fmuser.org
1.How far you want to cover in diameter ?
2.How tall of you tower ?
3.Where are you from ?
And we will give you more professional advice.

About Us

FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
FMUSER.ORG has been exporting more than 13 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services.
Contact email : sky@fmuser.org

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 1095 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 station, xiaobei 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: +8615915959450
E-mail: sky@fmuser.org
QQ: 727926717
Skype: sky198710021
Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620

English: We accept all payments , such as PayPal, Credit Card, Western Union, Money Gram, Alipay, Money Bookers, T/T, LC, DP, DA, OA, Payoneer, If you have any question , please contact me sky@fmuser.org or WhatsApp +8615915959450

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* If the packages is below 2kg,we will be shipped via post airmail, it will take about 15-25days to your hand.

If the package is more than 2kg,we will ship via EMS , DHL , UPS, Fedex fast express delivery,it will take about 7~15days to your hand.

If the package more than 100kg , we will send via DHL or air freight. It will take about 3~7days to your hand.

All the packages are form China guangzhou.

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For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .

Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
Phone: +8615915959450

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