Product Overview
Description
Introduction:
FSN-150B V5.0 FM radio transmitter is highly reliable, lighter in weight and easier to operate than previous version of transmitter. This transmitter adopts a simple-style design concept. It integrates the 50W FM stereo transmitter exciter, power amplifier, output filter and switching power supply in a 1U high 19-inch standard case, reducing the connecting cables between the components.
![]()

Technical Features:
• User-friendly digital LCD panel, using one rotary knob to control.
• The integrated LCD screen displays all the parametric including: transmitter frequency, stereo and mono, volume, amplifier tube temperature, audio signal UV meter, forward power, reflected power, modulation mode, pre-emphasis etc,.
• 1U 19-inch thickened all-aluminium case, strong and excellent heat dissipation.
• Precise PLL frequency generation system, to ensure that the frequency not drift away for more than10 years, with built-in high-quality stereo encoder.
• Outstanding power AGC balance control system, adjustable power output from 0 to 150 watts, and automatic gain power control to maintain output power within set range without drifting.
• Signal input supports XLR and RCA audio inputs, and also SCA and RDS signals using the BNC connector AUX.
Technical Parameters:
Frequency: 87.5-108MHz
Frequency step value: 10KHz
Modulation method: FM, peak deviation ± 75KHz
Frequency stability: <± 100Hz
Frequency stabilization method: PLL frequency synthesizer
RF output power: 0 ~ 150 W, step 0.1W, error ± 0.5dB
Harmonic suppression: ≤-72dB
Inband residual wave: ≤-72dB
Asynchronous AM SNR: ≥-80dB (no modulation) ≥-65dB (400Hz, 100% modulation)
Synchronous AM SNR: ≥-70dB (no modulation) ≥-60dB (400Hz, 100% modulation)
RF output impedance: 50Ω
RF Output Connector: N Female (L16)
Audio Input Connectors: XLR Female and RCA Female
AUX input connector: BNC female
Pre-emphasis: 0us, 50us, 75us (user setting)
Mono signal to noise ratio: ≥ 80 dB (20 to 20KHz)
Stereo signal-to-noise ratio: ≥ 80 dB (30 to 15KHz)
Stereo resolution: ≥ -55dB
Audio frequency response: 30 ~ 15000Hz ± 0.4dB
Audio distortion: <0.1%
Audio level gain: -15dB ~ 15dB step 0.5dB
Audio input: -15dB ~ 0dB
Power supply voltage range: 110V ~ 260V (global voltage)
Power consumption: <320VA
Operating temperature range: -10 to 45 ℃
Way of working: continuous work
Cooling method: forced air cooling
Cooling method: <95%
Altitude: <4500M
Dimensions: 484 x 260 x 44 mm without handles and protrusions, 19 “1U standard rack.
Weight: 4Kg
FMUSER RDS-A RDS Encoder for
FM Transmitter with MPX SCA Input
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 time, station 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…
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…
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.
Technical Specifications
Parameter
|
Condition
|
Value
|
General
|
Supply voltage
|
|
12 V DC stabilized
|
Signal connectors
|
|
unbalanced BNC
|
Data connectors
|
|
1x USB (port 1), 1x Ethernet (port 2, 3, 4)
|
Network protocols supported
|
|
HTTP, SNTP, TCP, UDP, DHCP, DNS, SNMP
|
USB speed
|
|
software switchable 1200, 2400, 4800, 9600, 19200 bps
|
USB Mode
|
|
1 stop bit, 8 data bits, no parity, (no flow control),ASCII or UECP (SPB 490)
|
TA/EON1TA input
|
|
TTL with 10 kΩ pull-up, level or falling edge activated
|
Program switch input
|
|
TTL with 10 kΩ pull-up, level controlled
|
RDS Services supported
|
PI, PS, PTY, TP, AF, TA, DI, M/S, PIN, RT, RT+
TMC, EON, PTYN, ECC, LIC, TDC, IH, CT, ODA
|
RDS signal
|
Subcarrier frequency
|
|
57 kHz
|
Bandwidth
|
|
± 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
|
mono
|
< 10 kΩ
|
stereo MPX
|
< 2 kΩ
|
Passthrough voltage gain
|
2 Hz - 100 kHz
|
1 (0 dB)
|
- recommended FM deviation
|
|
6.8 kHz
|
Appearance and Illustration
1pc FMUSER 350W FM Transmitter
1pc FMUSER RDS-A Encoder
1pc FU-DV2 Antenna
1pc 20meters 1/2 Coaxial Cable with connectors
1pc USB Cable
2pcs BNC Cable
1pc 12V 2A Power supply