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FMUSER 350W FM Transmitter with RDS Encoder for RDS Intelligent Addressable Broadcasting

Total:1799 USD

Item:1799 USD   Shipping:0 USD

FMUSER 350W FM Transmitter with RDS Encoder for RDS Intelligent Addressable Broadcasting



FMUSER hereby presents newly innovated FSN-350T 350W FM transmitter with touch screen to all FM broadcast fans with due respect. Exclusively from other 350W transmitter in the market, FMUSER 350W radio FM transmitter features by its human-friendly touch screen operation interface, highly stable and reliable performance and near CD quality stereo sound effect, which make it a remarkable improvement in the whole market, and leads to its high popularity in using for the most of FM radio stations.

This 350W FM broadcast transmitter is designed in a compact 19 inch 2U chassis by integrating all modules inside, small in size and easy in operation and maintenance.

The DSP(Digital Sound Processing) technology makes the FSN-350T 350W FM transmitter an enjoyable sound broadcasting device for all music lovers, you’ll no longer be bothered by the noises or distortions.


As quality asurance, FMUSER Provides 5 YEAR warranty for this FMUSER FSN-350T 350W Professional FM transmitter. , you’ll have no worries to use it for the radio station.


1). Community Radio stations
2). LPFM radio stations
3). City radio stations
4). Christian Church radio stations




The transmitter will switch to auto-protection with alarm message and a beep sound once the working temperature gets higher than normal range. 


SWR is the indication of antenna system connection with transmitter. Once the connection is bad and causing a high SWR Value, the transmitter will switch to automatic protection mode by showing alarm message on the screen with a beeping sound meanwhile. 


When the fan stopped running, there will be alarming message showing on the screen like the following:

The 350w FM transmitter auto scans the best matching frequency on antenna to maximize the broadcasting efficiency at minimum SWR ratio, this ensures the best performance from both the transmitter and antenna.



When audio mixers are connected with the 350w FM transmitter through the XLR Balanced audio input interface, the transmitter will provide plenty of options for the modulation to best match with the mixer.  



This FSN-350T 350w FM transmitter is designed with a precisely sensitive touch screen in replace of the control buttons on previous transmitters. With all information displayed clearly on the screen, users can control and configure all parameters very easily.

The pre-emphasis of 350w FM transmitter are flexible to choose among 0US / 50US/ 75US, users can choose the best match mode according to their own needs.


The RF out of this 350w FM transmitter is continuously adjustable from 0-350 watt at the stepping of 0.1watt, which means you can tune it to 1w, 1.1w, 1.2w...50w...80w..150w..350w.., with just one transmitter you’ll get multiple modes of outputs and easy to tune as per your needs.





RF Part:

Frequency: 87.5-108MHz,
Frequency step value: 10KHz
Modulation: FM, peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization method: PLL frequency synthesizer
RF output power: 0~350 watts ± 0.5dB
Residual wave: <- 70dB
Higher harmonics: <- 65dB
Parasitic AM: <- 50dB
RF output impedance: 50Ω

RF output connector: N female

Audio Part:
Audio input connector: XLR female
AUX input connector: BNC female
Pre-emphasis: 0us, 50us, 75us (user setting)
S / N ratio mono:> 70 dB (20 to 20KHz)
S / N ratio stereo:> 65 dB (20 to 15KHz)
Stereo resolution: -50dB
Audio frequency response: 30 ~ 15000Hz
Audio distortion: <0.3%
Audio level gain: -12dB ~ 12dB step 3dB

Audio input: -19dB ~ 5dB

General Features:
Power supply voltage range: 110V ~ 260V
Operating temperature range: -10 to 45 ℃
Work mode: continuous work
Cooling method: air cooling
Cooling efficiency: <95%
Work Altitude: <4500M
Power consumption: 1500VA
Dimensions: 483 x 320 x 88 mm without handles and protrusions, 19 "2U standard rack.
Weight: 12Kg

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)
Radio Data System (RDS) is a standard for helping people insert some data information in a  FM radio broadcasts station.
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: 
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.
3. 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) 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.
5. 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.
6. 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 FM radio.
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. 1pc FMUSER 350W FM Transmitter
2. 1pc FMUSER RDS-A Encoder
3. 1pc USB Cable
4. 2pc BNC Cable
5. 1pc 12V 2A Power supply
Total:1799 USD

Item:1799 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.

* 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

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