Aqua Broadcast Cobalt C‑100 100W Digital FM Transmitter

Product Overview

Цей Aqua Cobalt C-100 is a fully featured 100W digital FM broadcast transmitter designed for LPFM, regional stations and use as a high‑quality exciter in larger systems. Running on a customised Linux OS, its direct‑to‑channel DDS modulator delivers exceptionally clean audio, precise deviation control and excellent RF stability. An integrated stereo encoder, dynamic RDS/RBDS generator and 4‑band audio processor create a complete on‑air package in a compact 1U chassis, while analogue stereo, AES/EBU and digital MPX (AES192) inputs provide flexible signal paths from studio or STL.

Aqua Cobalt C-100 Основні характеристики

• • 100W solid‑state FM stereo transmitter using direct‑to‑channel DDS modulation for low distortion and superior spectral performance.

• • Adjustable RF output typically from 5–100W with N‑type RF connector, around 56% AC‑RF efficiency and temperature‑controlled fan cooling.

• • VHF Band II operation from 87–108MHz with 100kHz steps and ±1ppm frequency stability from an internal 10MHz reference.

• • Integrated stereo encoder supporting stereo, mono L+R, mono L and mono R modes with 20Hz–15kHz ±0.02dB response and up to 75dB stereo separation.

• • Dynamic RDS/RBDS generator with support for RDS2, advanced data, UECP/ASCII control and multi‑port Ethernet/USB connectivity.

• • Analogue stereo, AES/EBU digital audio and analogue/digital MPX inputs with precise level trim; wideband MPX I/O optimised for external processors.

• • Onboard 4‑band audio processor with ITU‑R BS412 limiting, loudness presets and optional upgrade paths for more aggressive processing.

• • GPS sync and SFN‑ready operation with scheduler, automation, audio failover, silence detection and USB backup audio player.

• • Remote management via secure HTTPS web interface, SNMP v3, email alerts and intelligent GPIO so engineers can monitor and control the C-100 from anywhere.

• • Mono performance from 20Hz–15kHz ±0.02dB, mono SNR ≥75dB (AES/EBU) and THD+N down to 0.001% on digital MPX input.

Applications

Use the Aqua Cobalt C-100 as the main transmitter for LPFM and community stations, as a regional 100W site in larger networks or as a clean, feature‑rich exciter driving external RF amplifiers. Its combination of DDS exciter, integrated processing, dynamic RDS and SFN‑ready GPS sync makes the Aqua Cobalt C-100 an excellent choice wherever 100W output, premium audio quality and robust remote control are required in a compact 1U package.

Pair the Aqua Cobalt C-100 with suitable antennas and RF amplifiers in our Комплекти FM-антен and FM Amplifier categories to build scalable systems from 100W upwards. To explore more Aqua Broadcast products related to the Aqua Cobalt C-100, visit our Aqua Broadcast brand page and the main FM Audio Processors categories for compatible processors and STL codecs.