CP-10000
The COBALT CP-10000 is a fully featured 10,000W / 10kW FM transmitter designed for continuous 24/7 broadcast operation. Featuring a modular architecture with up to five hot-pluggable 2.2kW RF power modules and an optional second exciter, the CP-10000 delivers high reliability, simplified maintenance, and dependable on-air performance.
The integrated COBALT C-30 exciter uses Direct-to-Channel Digital Synthesized (DDS) modulation to provide mono and stereo broadcasting across the full 87.5–108MHz FM band. A built-in 4-band audio processor with ITU-R BS412.9 limiter, dynamic UECP-compliant RDS encoder, Digital MPX (AES192), audio failover, silence detection, USB backup audio player, and Shoutcast/Icecast stream support provide a complete transmission solution.
Designed for modern broadcast networks, the CP-10000 includes analogue and AES/EBU audio inputs, Ethernet, USB, GPIO, GPS synchronisation for Single Frequency Network (SFN) operation, HTTPS remote control, SNMP (v1/v2c/v3), and web-based audio monitoring and control. Advanced automation, scheduling, and configuration tools allow operators to monitor and manage the transmitter from virtually anywhere.
With up to 70% overall efficiency, automatic power control, comprehensive protection against high VSWR, overdrive, overcurrent and overheating, and a hot-swap cooling system, the CP-10000 is engineered for reliable, efficient operation. The transmitter is available with single-phase or three-phase AC power options and is fitted with a 1+5/8" EIA RF output, making it suitable for a wide range of FM broadcast installations.
Optional features
MicroMPX,
MicroMPX SFN,
2wcom MOIN codec,
6-band audio processor,
FM tuner
- Modular
- 10,000W / 10kW
- Direct to Digital Exciter
- Full-band tunable across 87.5–108 MHz
- 70% efficiency with switching-mode power supply and automatic power control
- Hot-pluggable, RF power modules (5× 2.2 kW)
- Designed for 24/7 continuous operation
- Comprehensive protection: high VSWR, overdrive, overcurrent, overheating
- Exciter Compliant with IEC, ETSI, CCIR, FCC (incl. FCC Part 73 LPFM & IC Canada)
- Supports mono and stereo broadcasting with direct digital synthesized modulation
- Integrated 4-band audio processor with ITU-R BS412.9 limiter
- Dynamic UECP-compliant RDS encoder
- Digital MPX (AES192)
- Audio failover, silence detection, and USB backup audio player
- Shoutcast / Icecast stream input support
- GPS synchronization for SFN operation
- Front panel RGB display with full system monitoring
- Remote control via Ethernet (HTTPS) and SNMP (v1/v2c/v3)
- Web-based audio monitoring and control
- Advanced automation, scheduling, and configuration tools
- Emergency stop button
A-10000 RF Amplifier Parameters
GENERAL
| Frequency range | 87.5 - 108 MHz |
| Rated output power | 10 kW + 10% |
| Driver power for rated output | 30 W |
| VSWR | 1.4:1 with automatic downscaling to higher |
| Asynchronous AM S/N Ratio | VSWR |
| Synchronous AM S/N Ratio | Typically > 70 dB |
| Harmonics suppression and Spurious | Typically > 55 dB |
| RF Harmonics | Typically < 85 dB |
| RF Spurious | Exceeds ETSI/CCIR/FCC requirements |
| Environmental working conditions | Exceeds ETSI/CCIR/FCC requirements. -10 °C to +50 °C / 95% relative humidity , Non-condensing humidity |
POWER REQUIREMENTS
| AC power input | |
| AC Supply Voltage | 400V ±10% AC Three-Phase 3F+N 230V ±10% AC Three-Phase 3F+N 230V ±10% AC Mono-Phase 50/60 Hz |
| Active Power Consumption | about 14.7 kW |
| Power factor | > 0.95 |
| Overall Efficiency | 68/70 % |
| Connector | Terminal Block Standard |
MECHANICAL DIMENSIONS
| Physical Dimensions LxHxW | 685 mm x 1935 mm x 1000 mm |
| Weight | about 380 kg |
| Cooling | Forced, with internal fan |
| Acoustic Noise | < 75 dBA |
Output
| RF Output | 50 Ohm (1+5/8" EIA flange type) |
C-30 Colbalt Exciter Parameters
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 | ~101W @ max power |
| AC-RF efficiency typ | ~30% |
| Temperature controlled fan | 1 |
| Power supplies | 1 |
| Dimensions WxDxH (inch) | 19x15x1RU (1.75") |
| Dimensions WxDxH (cm) | 48.3 x 38 x 4.45 |
| 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 |
