Description
DDS IS FINALLY AVAILABLE ALSO FOR SMALL RADIO STATIONS AND LPFM – HOBBY USERS
This 15W DDS FM radio exciter can generate 15-75watts of digitally generated radio signal.
Featuring a sleek new graphics display, web control interface, Ethernet connectivity, a two-color VU meter, smooth rotary navigation, and full RDS control. With the addition of DDS technology, they reach an entirely new level!
✅ Ultra-deep bass down to DC
✅ Infinite stereo separation
✅ Pure digital-to-air AES/EBU & 192KHz USB—no A/D D/A conversion
✅ GPS synchronization & SFN support
✅ MicroMPX & StereoTool compatibility
✅ Upgradeable firmware & tight MPX control
Paired with a new OLED display, redesigned enclosures for improved ventilation, and exceptional reliability, the warranty has been extended to 5 years—because we stand by the quality.
Engineered for Demanding Broadcasters
- Fully wideband design—no tuning required
- Extremely clean signal
- Just set the frequency & output power—everything else is optional
- SWR, temperature, overcurrent & overvoltage protection for rock-solid reliability
- Intelligent fan speed control for quieter operation
Seamless Streaming Integration
For those who rely on streaming sources, we offer an industry-standard streaming receiver that also plays MP3 files from USB. Even better? Stream names and song titles (if provided by the source) appear on the OLED display and are transmitted via RDS. Full setup instructions are available in the LCD manual.
This is a serious transmitter for serious broadcasters. Ready to take your station to the next level?
Manuals and drivers for most products are available under the Additional Information tab above, just under the prices. Some old manuals are here.
If your web browser blocks the download, you may have to allow it manually. You can send us questions here.
What’s New in the DDS Version?
The latest DDS FM transmitters are packed with cutting-edge features, ensuring superior performance, efficiency, and control. Here’s what makes this version a game-changer:
Advanced Digital Processing
- Fully digital FM exciter with a dedicated DSP processor and high-performance dual-core main processor
- True digital AES/EBU MPX receiver for pure, lossless audio
- 192KHz USB audio input—no D/A conversion, digital signal straight from Stereo Tool to DDS/Air
- Fully digital stereo encoder & RDS encoder for crystal-clear signal processing
Ultimate Control & Connectivity
- Bright 122×32 graphical LCD with a rotary encoder, USB, and Ethernet ports
- Web-based remote control via Ethernet—accessible even from your mobile phone
- Full RDS configuration via OLED display or web interface
- Industry-standard UECP RDS support, compatible with any radio studio software
- RBDS (USA) & RDS support with customizable national character substitution
- Built-in scheduler for automatic power adjustments twice per day—independent of any PC
- Internet-based time sync for precise CT RDS time updates, with automatic daylight savings adjustments
Enhanced Audio & Signal Management
- Optional streaming & MP3 playback, including song name transmission via RDS
- Calibrated two-color VU meters for power, reflected power, and audio level
- Advanced MPX level control with multi-point limiting and easy external adjustments
- 100 power adjustment steps with improved percentage-based accuracy
- Modular construction for quick, solder-free module replacements
User-Friendly & Cost-Effective
- Easy frequency and parameter adjustments via display or web interface
- Energy-efficient and practical design with enhanced ventilation
- Upgradeable firmware via USB—stay future-proof with the latest features
The DDS series is designed for broadcasters who demand the best in performance, reliability, and control.
Remote Control – Full Flexibility at Your Fingertips
Easily adjust and monitor your transmitter settings via Ethernet—no software installation required! Simply connect your transmitter to your local network and access all parameters directly from your web browser.
What Can You Control Remotely?
✅ Frequency & Output Power – Adjust as needed for optimal transmission
✅ Alarms & Warnings – Monitor and configure system alerts
✅ Network Settings – Set up IP configurations and connectivity options
✅ Time & Scheduler – Manage automatic power adjustments and precise time sync
✅ Audio Input & Levels – Select input sources and fine-tune levels
✅ DSP & RDS Settings – Customize audio processing and RDS data
With an intuitive web interface, you have full control—anytime, anywhere. Check the manual for more details. Below is a preview of the interface.
YouTube Preview of our DDS FM transmitters:
YouTube Preview of our new advanced LCD displays:
Technical specifications:
RF SECTION
– Output power: 1W to 75W depending on the model, easily adjustable via LCD display (100 steps)
– Output impedance 50 unbalanced, VSWR less than 2:1 for full output
– Output connector: BNC female
– Frequency range 87.5 to 108MHz
– RF Spurious > -75 dBc @ +- 1MHz min. out of carrier
– RF Harmonics > -60 dBc min, -70dBc typ
– Monitoring Led: Power on, SWR/TEMP/PLL warning
– Modulation capability: FM
– RDS support: Yes
– RDS CT accuracy: -+0,1 seconds
– Supported RDS groups: PS, RT, CT, AF, EON, PTY, TA, TP, ECC, DI bits, UECP interface
AUDIO SECTION
– Audio connectors: 2x XLR analog, 1x XLR AES/EBU, USB
– 192KHz USB audio input
– Audio level required: 4dBu (1.23Vrms @ 0db gain), -10dBu (0.316Vrms @ +14dB gain), adjustable in wide range
– Audio input impedance: 10Kohms resistive, balanced
– Pre-emphasis Flat, 50 or 75usec (adjustable via display)
– Harmonic distortion ( THD ) <0.05%
– Stereo separation: >80dB
– Mode: Stereo/Mono, adjustable via LCD display or remotely with PC
– Frequency amplitude: 0.1dB, 30Hz – 15kHz
GENERAL
– 75W and 50W models have on-board PWM FAN speed controller for extra silent operation
– Ambient temperature: -5° to +45°C
– Power supply: 15V(ordered separately, current rating depending on power)
– Standard 19″1HE rack, 125mm deep (about 5″)
– Weight about 4kg (volumetric)
What is included?
– FM exciter board
– Audio input board with 2x audio XLR; AES EBU XLR, USB audio 192KHz with cable included
– OLED advanced display with Ethernet port and USB port (IO board)
Worried about signal quality? Don’t be!
What is Custom Color Logo for Display?
The OLED display is protected by transparent plastic plate with text printed at the top and at the bottom below and above the actual display. We can print any text you desire in this place in order to customize the product for you. We will send you a Corel Draw template and you can change it to any text or graphics of your choice. You can use any color you desire. Price for more than one display is lower so if you need 5 or 10 price will be significantly lower!
Where can I buy everything I need to start in a package, including antenna and everything else?
You can check our All-inclusive transmitter packages, these include antenna, coaxial cable and mains power supply.
Depending on the model this unit gives > 15/25/50/75/100W of clean RF power, exact power output can vary about +/- 10% depending on frequency, mains quality, ambient temperature and antenna matching. *5 Years warranty excludes any damage due to abnormal use, water damage, mishandling, electrical/lightning discharges, operation in areas with poor air conditioning or poor ventilation. Warranty does not cover burned final transistors and shipping cost as it is hard to establish the cause (it is usually one of the above).
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