The OMB EM 300 DDS – 300 W Digital FM Transmitter combines high efficiency, DDS precision, and remote control for professional low-power FM broadcasting.
$ 4,505.02
Compact Power and Digital Precision
The OMB EM 300 DDS – 300 W Digital FM Transmitter delivers professional broadcast quality in a space-saving chassis. Designed for regional, community, and backup transmission, it combines advanced DDS (Direct Digital Synthesis) modulation with exceptional RF performance and reliability.
High-Efficiency Solid-State Design
This model uses rugged LDMOS technology to achieve high linearity and energy efficiency. Typical AC efficiency exceeds 70 %, ensuring reduced operational costs and long service life. The EM 300 DDS integrates a fully digital exciter with automatic gain control for stable, low-distortion output across the entire 87.5 – 108 MHz band.
Intuitive Control and Monitoring
A front-panel LCD display and user-friendly interface provide complete transmitter status, alarms, and parameter control. Remote supervision is available through RS232, TCP/IP, and SNMP, allowing broadcast engineers to monitor and adjust performance in real time.
Reliable Operation and Protection
Built for continuous 24/7 service, the transmitter incorporates comprehensive VSWR, over-temperature, and over-drive protection. A temperature-controlled fan system maintains optimal thermal performance while minimising noise.
Flexible Applications
The OMB EM 300 DDS is ideal for standalone low-power FM stations, gap-filler sites, and redundancy systems within larger networks. Its solid-state architecture and digital exciter ensure consistent modulation quality and dependable operation in any broadcast environment.
Output Power: 0 – 300 W adjustable
Frequency Range: 87.5 – 108 MHz
Modulation: Direct FM, DDS digital exciter
AC Efficiency: > 70 % typical
Audio Inputs: MPX, SCA, RDS, AES/EBU (optional)
Stereo Separation: > 65 dB @ 1 kHz
Remote Control: RS232, TCP/IP, SNMP
Cooling: Temperature-controlled forced air
Dimensions: 19″ rack, 2 RU height
Power Supply: 90 – 264 VAC, 50/60 Hz
For similar power class systems, explore other high-efficiency FM transmitters available at Broadcasters Warehouse:
• Nautel VX300 – compact 300 W solid-state transmitter with AUI remote control and advanced DSP audio.
• DB Mozart Next 500 – 500 W modular GreenRF™ design offering web/SNMP monitoring and high AC efficiency.
• Sinteck XT-520 – a compact and efficient 500 W transmitter incorporating the latest LDMOS technology.
