The number one Internet resource for satellite and spacecraft downlink frequencies and information. On this site you will mostly find satellite and spacecraft related information concerning various RF downlinks from VHF to Ka band (up to about 40GHz), along with ideas and techniques for receiving or detecting these signals.

Ultra High Frequency Follow-On (UFO) satellite system is a United States Department of Defense (DoD) program sponsored and operated by the United States Space Force to provide communications for airborne, ship, submarine and ground forces.

UHF-Satcom generally refers to frequencies between 240MHz and 270MHz. To receive it, you'll need a reasonable antenna, perhaps a LNA, and a receiver that covers the relevant frequency range. To get an idea of what sort of antenna you might like to build, check the uhf-satcom equipment gallery which has pictures submitted by readers of this site.

Lockheed Martin's MUOS revolutionizes satellite communications (SATCOM) with secure, ultra-high frequency (UHF) technology for the U.S. Navy's mobile forces.

Viasat is the world leader in shipboard and fixed-station UHF SATCOM radio communications for defense organizations. From single user terminals to complete stand-alone UHF systems for sovereign controlled satellite channels, Viasat provides terminals, modems, simulators, and network management for mission success.

In the context of satellite communications (SATCOM), the term narrowband (NB) generally refers to the ultra-high-frequency (UHF)-, L-, and S-bands, where available bandwidth is limited compared to the higher-frequency bands. These lower-frequency bands in the 300-MHz to 4-GHz range are attractive to the

2024年5月22日 · JITC has established and maintains UHF SATCOM Certification Test Services to support the directives of the CJCSI 6251.01. Upon completion of successful testing of a SATCOM Terminal configuration, JITC issues a Standard Conformance Test (SCT) or Waveform Conformance Test (WCT) Certification letter.

2020年12月16日 · Satellite UHF and VHF devices play an important role in satcomms on many spacecraft. This a market segment overview of commercially-available very high frequency (VHF) and ultra high frequency (UHF) transceivers and transmitters for CubeSats and small satellites.

The C34 Antenna Series pioneered UHF satcom for fixed-wing aircraft in the mid-1970s. The first of its kind, this dual-mode (high- and low-angle) antenna is now standard equipment for many operational fixed-wing satcom programs including UHF satellite terminal systems (USTS) on the C-130, C-141 and C-5 aircraft.

Abstract: The Joint UHF MILSATCOM Technical Working Group (TWG) is in the process of developing a single integrated waveform with the goal of providing a significant improvement over the two current demand-assigned multiple access (DAMA) waveforms. This paper describes key features and benefits of the waveform under development and describes ...