| Comtech’s X-Band Low-Noise Block Down Converter Series (LNB) meets or exceeds system requirements for commercial and military geosynchronous satellites worldwide. | 
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Their compact design and rugged construction make them ideal for transportable applications and
severe environments. They have a comprehensive set of options to accommodate systems ranging from Very Small Amplifier Terminal
(VSATs) to major earth stations. The X-Band LNB allows for interfacing, at the antenna, with our LPOD family of X-Band outdoor BUCs
for sourcing of the LNB bias voltage and high stability reference in either single or redundant configurations.
Technology
The amplifiers incorporate both HEMT devices for low-noise temperature performance and GaAs FET devices for low intermodulation.
The units use surface mounted components for robotic manufacturing techniques, thereby ensuring maximum product consistency and
enhanced reliability. The X-Band LNB includes integrated filtering to address adjacent power issues peculiar to demanding X-Band
terminals.
Reliability
The amplifier series utilizes proprietary circuitry and high-quality components to achieve an MTBF in excess of 160,000 hours. Each unit
is subjected to a 72-hour burn-in and temperature cycled from -40 to 140°F (-40 to +60°C).
Construction
The LNBs are housed in waterproof enclosures with small profiles to better accommodate redundancy configurations. The enclosures
also provide a pressurizable, integral waveguide flange.
Accessories
Transmit reject filters, cables and other integration materials are offered as required.
Subsystems
1+1 (one backup for one primary) and 1+2 (one backup for two primary) redundant LNB systems are available, complete with mounting
plate, brackets and indoor redundancy controller/power supply. Transmit reject filters, cables and other integration materials are offered
as required.