Intellian Terrasat Ku-band 50W (IBR137145-2NA052WW) VCM-1505
The Intellian VCM-1505 is a Terrasat IBUC 2 block upconverter for compatible maritime and fixed VSAT systems. Model IBR137145-2NA052WW converts a 950–1,700 MHz L-band modem signal into a 13.75–14.5 GHz full Ku-band uplink signal.
The unit provides at least 50W of RF output at P1dB and combines the BUC, solid-state amplifier, AC power supply, and monitoring functions in a weatherized outdoor enclosure. Ethernet, RS-232/485, and FSK management support remote configuration, alarm monitoring, and system diagnostics.
Satellite Phone Store supplies Intellian and Terrasat VSAT components and can help confirm antenna compatibility, frequency requirements, available power, and management interfaces before ordering.
Description
Full Ku-Band Frequency Coverage
The VCM-1505 operates across the 13.75–14.5 GHz full Ku-band uplink range and accepts a 950–1,700 MHz IF signal. It uses non-inverting frequency conversion with a 12.8 GHz local oscillator, supporting compatible networks across standard and extended Ku-band frequencies.
50W RF Output
The Terrasat IBUC 2 provides a minimum P1dB output of +47 dBm, equivalent to 50W. The standard-gain configuration provides at least 78 dB of small-signal gain, with a 30 dB adjustment range in 0.1 dB increments.
Practical applications include:
- Commercial maritime broadband
- Offshore operational communications
- Voice and business data services
- Fixed satellite terminals
- Replacement of an existing compatible 50W Terrasat BUC
Actual link performance depends on the antenna, modem, satellite network, service configuration, and installation conditions.
Integrated Monitoring and Control
The IBUC 2 supports Ethernet management through an RJ45 interface, along with RS-232/485 and handheld-terminal access through an MS-type connector. FSK management can also be multiplexed over the transmit IF cable.
These interfaces allow compatible network and antenna-control equipment to adjust gain, review alarms, monitor transmit performance, and diagnose system conditions remotely.
AC-Powered Outdoor Installation
This configuration accepts 100–240V AC at 50/60 Hz and consumes approximately 460 VA at rated output. The integrated AC supply avoids the need for a separate external DC power converter.
The weatherized enclosure is designed for operation in outdoor antenna installations, including environments with condensing humidity and temperatures from -40°C to 55°C.
Technical Specifications
Power
- RF output at P1dB: 50W / +47 dBm minimum
- Input power: 100–240V AC, 50/60 Hz
- Power consumption: 460 VA
- Level stability with ALC: ±0.5 dB
- Output power detector range: Rated output to -20 dB
- Output power reading accuracy: ±1 dB maximum
Dimensions
- 26.7 × 15.2 × 15.5 cm / 10.5 × 6.0 × 6.1 in.
Weight
- 6.1 kg / 13.5 lbs
Durability
- Construction: Weatherized outdoor enclosure
- Amplifier technology: GaAs
- Operating temperature: -40–55°C / -40–131°F
- Relative humidity: 100% condensing
- Maximum operating altitude: 3,000 m / 10,000 ft
- Out-of-band compliance: EN 301 428/430 and MIL-STD-188-164C
Included
- Intellian VCM-1505 Terrasat IBR137145-2NA052WW 50W Ku-Band IBUC 2
Additional
- Product type: Intelligent block upconverter
- Manufacturer: Terrasat Communications
- Terrasat model: IBR137145-2NA052WW
- Intellian part number: VCM-1505
- Product platform: IBUC 2
- Frequency band: Full Ku-band
- Output class: 50W
Data Network
- RF output frequency: 13.75–14.5 GHz
- IF input frequency: 950–1,700 MHz
- Local oscillator frequency: 12.8 GHz
- Frequency conversion: Non-inverting
- External reference: 10 MHz, -12 to +5 dBm
- Internal reference: Optional with automatic external-reference detection
- Small-signal gain: 78 dB minimum
- Gain adjustment: 30 dB in 0.1 dB steps
- Full-band gain flatness: 4 dB peak-to-peak maximum
- 36 MHz gain flatness: 1.5 dB peak-to-peak maximum
- 1 MHz gain flatness: 0.25 dB peak-to-peak maximum
- Input VSWR: 1.5:1 maximum
- Output VSWR: 1.3:1 maximum
- Third-order intermodulation: -25 dBc maximum
- In-band spurious output: -65 dBc
- Harmonics: -50 dBc maximum
Interfaces
- IF input: N-type female, 50 ohms
- RF output: WR-75 waveguide with groove
- Network management: Ethernet through RJ45
- Serial management: RS-232/485 through an MS-type connector
- Additional management: FSK multiplexed over the transmit IF cable
- Supported management protocols: HTTP, Telnet, and SNMP
