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FMUSER RDS-A RDS Encoder for FM Transmitter with MPX SCA Input

Total:600 USD

Item:600 USD   Shipping:0 USD

FMUSER RDS-A RDS Encoder for

FM Transmitter with MPX SCA Input


FMUSER RDS-A Encoder is well suited for most regional, local, RSL, LPFM and other medium- and small-coverage radio stations which use Ethernet for dynamic RDS data distribution. Built-in Ethernet controller supports multiple TCP/UDP ports, internet functions and remote monitoring .
FMUSER RDS-A Encoder have Fully DSP concept and effective design ensures high reliability, excellent signal characteristics and gives the user many advanced features while maintaining low acquisition costs.
Fully dynamic FM broadcast RDS encoder with up to four independent communication ports
USB connectivity for local settings and maintenance purposes
Ethernet connectivity for linking with broadcast automation system
Control interface based on ASCII commands and UECP protocol
Supports internet functions and remote monitoring
Text features include dynamic PS, parsing, scrolling, tagging, fixed messages, scheduling and HTTP reading
Excellent compatibility with broadcast automation systems
Control software includes powerful Windows GUI application
Supports control from external PHP/ASP scripts
Easy and fast set-up
Excellent spectral purity, direct digital RDS signal synthesis; compliant with EN 50067 / EN 62106
Two switchable program sets (with optional DSN and PSN setting)
External TA and Program set switch
Bypass relay, high reliability
Switchable MPX loopthrough mode (Loop/Side)
Internal real-time clock incl. backup battery
No special 19 kHz input needed - pilot tone internally recovered from MPX signal using digital PLL
Frequency Question (FAQ)
1. What is Radio broadcast data system(RDS)
Radio Data System (RDS) is a standard for helping people insert some data information in a  FM radio broadcasts station.
RDS transmitted including timestation identification and program information.
The standard began as a project of the European Broadcasting Union (EBU).
2. Why you need to build fm radio station with rds?
RDS provides a digital channel for ordinary FM radio stations, allowing the radio to provide users with more features, including the following illustrations:
The most important features is AF, TA, TP, it help FM radio station do more…
 a) RDS Traffic Announcement (TA) :
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 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.
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
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.
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.
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.
Lets look the the characteristics:
Technical Specifications

Supply voltage
12 V DC stabilized
Supply current
280 mA
Signal connectors
unbalanced BNC
Data connectors
1x USB (port 1), 1x Ethernet (port 2, 3, 4)
Network protocols supported
USB speed
software switchable 1200, 2400, 4800, 9600, 19200 bps
USB Mode
1 stop bit, 8 data bits, no parity, (no flow control),
TA switching
software or external switch
TA/EON1TA input
TTL with 10 kΩ pull-up, level or falling edge activated
Program sets
Program set switching
ASCII command, UECP command or external switch
Program switch input
TTL with 10 kΩ pull-up, level controlled
RDS Services supported
RDS signal
Subcarrier frequency
57 kHz
± 2.4 kHz (50 dBc)
Output level adjust
0.0 to 4.0 V p-p in 256 steps
Phase shift adjust
stereo transmission
Full range, in 9.5 deg. steps
Audio/MPX/Pilot input
Recommended load impedance
< 10 kΩ
stereo MPX
< 2 kΩ
Recommended MPX voltage
1.3 - 8.0 V p-p
Passthrough voltage gain
2 Hz - 100 kHz
1 (0 dB)
Pilot tone level
min. 120 mV p-p
- recommended FM deviation
6.8 kHz
Pilot PLL capture range
8 Hz
Stereo encoder pilot frequency required
stereo transmission
19000 Hz ± 2 Hz
Output impedance
100 Ω
Recommended load impedance
> 70 Ω, < 1 nF, no DC offset
Max. output voltage (RDS + MPX)
9.0 V p-p
Recommended RDS level
3 - 11 % of MPX

Appearance and Illustration 

12V DC
Power supply connector. See section 3.3 for details.
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.
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.
Input BNC
Optional input for synchronization to the pilot tone or for mixing the RDS signal with existing modulation signal.
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. 2pcs BNC Cable
4. 1pcs 12V 2A Power supply
Order Guide
The FMUSER RDS-A is suitable for working with:
More models are being adapted, please ask our staff if your model is suitable for use.
So, FMUSER RDS-A Encoder provides you with a solution to increase the radio station's listening rate, making it easier for you to send messages to the user's radio while operating the radio station.
Act now, there is currently a discount:
Now Buy FSN5 Series Transmitter, You will get a 50% discount on FMUSER RDS-A Encoder.
The FMUSER RDS-A encoder official price is 600USD, and the 50% discount price is 300USD(It is only applicable if purchase one FSN series transmitter and get a RDS-A encoder 50% discount).
There is no better time than now, BUY IT NOW


Total:600 USD

Item:600 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, 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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    Pay by Western Union to me :

    First name/Given name: Yingfeng
    Last name/Surname/ Family name: Zhang
    Full name: Yingfeng Zhang
    Country: China
    City: Guangzhou 


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    BANK CODE: 012
    Account NO. : 012-676-2-007855-0

* It will be sent in 1-2 working days when payment clear.

* We will send it to your paypal address. If you want to change address, please send your correct address and phone number to my email sky@fmuser.org

* 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.

* Package will be sent as a "gift" and declear as less as possible,buyer don't need to pay for "TAX".

* After ship, we will send you an E-mail and give you the tracking number.

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

Please return to this address and write your paypal address,name,problem on note:

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E-mail:sky@fmuser.org   WhatsApp:+8615915959450   Skype:sky198710021 Chat with me
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