The COBALT C-10 – C-5000 is a fully featured 10W – 5000W (Adjustable) FM Transmitter that has superior audio quality and sound clarity thanks to it‘s Direct to Channel Digital technology (DDS).
Running on a fully customized LINUX OS system, this low distortion modulator is available on all models within the COBALT family of FM Transmitters. Inputs and outputs include Analog, AES/EBU, Digital MPX (AES192), Ethernet, USB, GPIO, GPS Sync with built in SFN capabilities.
Ideal for many broadcast applications as a stand-alone transmitter, or even as an Exciter for larger amplifiers where High quality audio is needed.
An optional DC Input lets you run the COBALT 10W – 5000W on a 48V DC power system and opens further possibilities for off-grid power options. A second PSU can also be specified giving you two independent power inputs in parallel, giving you further confidence that you have a backup Power supply, ready to allow seamless switching if a Power supply is to ever suffer a fault.
Radio market beating sound will let you stand out to your listeners, with its built-in 4 band Audio Processor with Bass enhancement, Pilot protection, Wide AGC and a whole bunch of expertly designed modern presets, so you sound great right from the start.
The modern design lets you easily read the Ultra-clear RGB display, and the intuitive Joystick controls with Haptic feedback and additional silicon buttons allows fast setup, getting you on the air even faster.
The advanced communication package with Intuitive web interface and remote control via Ethernet (https) lets you make changes or monitor the COBALT Transmitter. Full SNMP Version 3 management and the ability to send emails, alerts and monitor audio remotely gives you added confidence knowing you have full control from anywhere in the world on any device with a Web browser.
Easy access to all components and software controlled variable fan speed, will guarantee you low cost of maintenance. The highest AC efficiency, a compact design and reduced weight mean low cost of transportation and far the lowest total cost of ownership in its class.
Output Power (W) | 10W – 5000W |
Range (W) | 200-1000W |
RF Output connector | 7/16 DIN (Female) |
Input ACV @ 50/60Hz | 220-240 *NOTE* For the C-1000 to be used on 120VAC, you must have the optional 2nd Power supply installed. Without this the units will only work on 220VAC. |
Power Connector | IEC 13A filtered |
Temperature controlled fan | 1 |
Power supplies | 1 |
Dimensions WxDxH (inch) | 19 x 18 x 2RU (3.5″) |
Dimensions WxDxH (cm) | 48.32x 45.7 x 8.8 |
Weight | 7.2kg / 15.87lb |
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 |
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 |
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 |
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 |
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 |
Frequency response | -90kHz ±0.005dB |
FM SNR | ≥100dB, with 75us de-emphasis |
THD+N | ≤0.001% with 75us de-emphasis |
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 |
Headphones Out | 1/4″ (6.3mm) female stereo socket, software adjustable volume, minimum load impedance 16Ω |
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 |
Analogue MPX | BNC, 10kΩ impedance, level adjustable 0-12dBu |
Digital MPX | BNC, 10kΩ impedance, level adjustable 0-12dBu |
Type | Fully Dynamic RDS/RDS2/RBDS Generator |
Protocols | ASCII commands, UECP protocol and X-Command Multi-port architecture |
Ports | UART over USB-B & Ethernet |
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 |
Altitude | 15,000 ft / 4,420m AMSL |
Temperature range | 0 to +45ºC working. -10 to +50ºC storage |
Humidity | 95% @ 35ºC, non-condensing |