Industrial Transmitter
Please contact us for other power options.
Housed in a rugged industrial chassis, the COBALT Industrial Series is designed for demanding environments in an ultra-compact form factor that can be mounted in a variety of ways.
Available in 10W, 30W, 50W and 100W output power versions, every COBALT Industrial transmitter delivers the same exceptional audio quality and sound clarity found across the entire COBALT family. This is achieved through Aqua Broadcast's Direct-to-Channel Digital Synthesis (DDS) technology and a low-distortion digital modulator running on a fully customised Linux operating system.
Standard interfaces include Analog, AES/EBU, Digital MPX (AES192), Ethernet, USB, GPIO, GPS Synchronisation with built-in Single Frequency Network (SFN) capability, and an integrated ITU-R BS.412.9 limiter.
The Industrial Series eliminates front-panel controls and display, with all configuration, monitoring and control handled through its intuitive web interface over either LAN or Wi-Fi, providing complete remote access from anywhere.
A standard +48 V DC input allows the transmitter to operate directly from telecom or renewable power systems, making it ideal for off-grid, backup power and other industrial applications.
Outstanding on-air performance comes as standard thanks to the built-in 4-band audio processor, featuring Bass Enhancement, Wide AGC, Pilot Protection and a comprehensive collection of professionally designed presets, ensuring excellent sound quality straight out of the box.
The advanced communications platform, featuring a secure HTTPS web interface, provides complete remote monitoring and control over Ethernet. Full SNMP (v1/v2c/v3) support, email notifications, alarm reporting and remote audio monitoring give operators complete confidence that every transmitter can be monitored and managed from anywhere in the world using any web browser.
The integrated Audio Monitoring function allows confidence monitoring directly from any web-enabled device. Users can listen remotely to analogue, AES/EBU, processed audio, test tones, or optional sources such as the built-in tuner or MicroMPX, making it easy to verify STL feeds, mixer outputs and on-air audio without visiting the transmitter site.
Easy access to internal components together with software-controlled variable fan speed helps minimise maintenance requirements while improving long-term reliability.
With outstanding AC efficiency, compact dimensions and reduced weight, the COBALT Industrial Series offers low transportation costs and one of the lowest total costs of ownership in its class. It is an ideal solution for professional FM broadcasting where reliability, audio quality and remote management are essential.
PRICE
| Model | GBP | USD | EUR |
| C10i | £3,250 | $4,090 | €3,650 |
| C30i | £3,950 | $4,990 | €4,450 |
| C50i | £4,050 | $5,090 | €4,550 |
| C100i | £4,150 | $5,290 | €4,650 |
- Industrial chassis
- AC and 24-48V DC compatible
- DDS Exciter
- 4 Band Audio Processing
- Dynamic, UECP Compliant RDS Encoder
- Direct to Digital Synthesized modulation
- Audio monitoring for confidence purposes by web browser
- Digital MPX Encoder
- MPX Power Limiter
- Linux OS
- Audio Failover and Silence Detection
- Backup Audio player via USB
- Ethernet Control and SNMP
- GPS Sync
- Standard Auxiliary +48V DC power input
OPTIONS
- Dante / AES67 audio
- µMPX
- 6 Band Audio Processor
GENERAL
| Output Power (W) | 30W |
| Range (W) | 5-30W |
| RF Output connector | N-Type (Female) |
| Input ACV @ 50/60Hz | 100-240 |
| Power Connector | IEC 13A filtered |
| Power consumption | ~50W @ max power |
| AC-RF efficiency typ | ~30% |
| Temperature controlled fan | 1 |
| Power supplies | 1 |
| Dimensions WxDxH (inch) | 6.5 x 12 x 5.1 |
| Dimensions WxDxH (cm) | 16.6 x 31.2 x 13.2 |
| Weight | 3.7kg / 8.14lb |
MODULATOR
| Transmitter type | Solid-state FM Stereo transmitter |
| Modulator | Direct-to-channel (DDS) |
| RF Output Frequency Range | VHF Band II, 87-108MHz |
| RF Frequency Steps | 100kHz |
| Frequency Stability | ±1 ppm or ±150Hz in 0-50⁰C range with internal 10MHz clock reference |
| FM Modulation Range Capability | 75kHz default, 100% modulation user adjustable up to 105kHz 140%), maximum 300kHz |
RF
| Power Stability | ≤ ± 0.25dB |
| Asynchronous/AM noise | ≤ -60dB |
| Synchronous AM s/n ratio | ≤ -60dB |
| RF Harmonic and Spurious Suppression | Meets ETSI requirements |
| VSWR operation | Fully protected against gradual or sudden VSWR conditions. Proportional power reduction from VSWR 1.5:1 |
STEREO ENCODER
| Performance | 400Hz/1kHz test tones at modulation level ≤75kHz |
| Modes | Stereo, Mono L+R, Mono L, Mono R |
| Frequency response | 20Hz-15kHz ±0.02dB |
| Pre-emphasis | 0, 50 or 75μs |
| Pilot tone | 19kHz, adjustable level 0-12% |
| Subcarriers suppression | ≤ -70dB |
| Stereo separation | ≥75dB AES/EBU input, ≥70dB Analogue input |
| Stereo SNR | ≥80dB with 75us de-emphasis, ≥75dB without de-emphasis, both inputs |
| Stereo THD+N | <0.03% |
| Crosstalk | ≥70dB, between L+R and L-R due to channel matching, both inputs |
MONO PERFORMANCE
| Frequency response | 20Hz - 15kHz ±0.02dB |
| Pre-emphasis | 0, 50 or 75 µs |
| Mono SNR | ≥75dB AES/EBU input, ≥70dB Analogue input |
| Mono THD+N | ≤0.002% analogue input, ≤0.001% AES input, with 75us de-emphasis |
ANALOGUE MPX INPUT PERFORMANCE
| Frequency response | 10Hz-53kHz ±0.03dB, 53kHz-70kHz ±0.3dB |
| FM SNR | 10Hz-53kHz ±0.03dB, 53kHz-70kHz ±0.3dB |
| THD+N | ≤0.003% with 75us de-emphasis |
DIGITAL MPX INPUT PERFORMANCE
| Frequency response | -90kHz ±0.005dB |
| FM SNR | ≥100dB, with 75us de-emphasis |
| THD+N | ≤0.001% with 75us de-emphasis |
AUDIO INPUTS
| Analogue | 2 x XLR female, 10kΩ impedance, level adjustable 0-24dBu |
| Digital | 24dBu AES/EBU via RJ45 per StudioHUB+, level adjustable -20-0dBFS, sampling rates 32-192 kHz |
AUDIO OUTPUT
| Headphones Out | 1/4" (6.3mm) female stereo socket, software adjustable volume, minimum load impedance 16Ω |
WIDEBAND INPUTS
| Analogue MPX | BNC, 10kΩ impedance, level adjustable 0-12dBu |
| Digital MPX | AES/EBU via RJ45 per StudioHUB+, level -20-0dBFS, sampling rate 192kHz left channel |
| Analogue RDS | BNC, 10kΩ impedance, level adjustable from 0.1-10Vpp |
WIDEBAND INPUTS
| Analogue MPX | BNC, 10kΩ impedance, level adjustable 0-12dBu |
| Digital MPX | BNC, 10kΩ impedance, level adjustable 0-12dBu |
RDS GENERATOR
| Type | Fully Dynamic RDS/RDS2/RBDS Generator |
| Protocols | ASCII commands, UECP protocol and X-Command Multi-port architecture |
| Ports | UART over USB-B & Ethernet |
COMMUNICATION AND CONTROL
| 10MHz input | BNC, 50Ω terminated |
| 1PPS input | BNC, 50Ω terminated |
| RF sample output | SMA, 50Ω, -30dBc |
| UART over USB | USB-B, system control |
| USB | 2 x USB-A, storage & FW upgrade |
| Ethernet | 1 x RJ45 |
| RS232 | DB25 shared connector, system control |
| GPIO | DB25 shared connector, 8 x output & 8 x input, all optically isolated. |
| Interlock/RF Mute | DB25 shared connector, programmable logic/polarity |
| Analogue voltage output | DB25 shared connector, 4-channel 0-5V range |
ENVIRONMENTAL
| Altitude | 15,000 ft / 4,420m AMSL |
| Temperature range | 0 to +45ºC working. -10 to +50ºC storage |
| Humidity | 95% @ 35ºC, non-condensing |
