SOLE SOURCE JUSTIFICATION:
AFRL requires a ComBlock module that operates in the 5.8 GHz band to use with the current system. The ComBlock module must be compatible with the other ComBlock modules that are in use at AFRL. ComBlock communications and signal processing modules are a proprietary format developed by Mobile Satellite Services, Inc. The modles provide a way of building communication systems that is totally unique by building a system by putting blocks together. No other vendor has the technical ability or the legal rights to develop these same modules. There are no other contractors that produce products compatible with ComBlock modules. Thus, to have a new module developed, only Mobile Satellite Services, Inc. can satisfy the Government's requirements.