CesiumAstro – Software-Defined Communication Systems

CesiumAstro builds high-throughput, plug-and-play phased array communication payloads for space and airborne platforms. Cesium’s full-stack, multi-mission hardware and software products enable a diverse range of commercial and defense objectives.

They offer a suite of scalable products from discrete modules to complete software-defined payloads that work out of the box. The integrated product line ranges from single-beam downlink solutions to multi-beam, full-duplex communication payloads.

Featured Products


NIGHTINGALE I - Ka-Band High-Speed Downlink Payload

The Nightingale I is a complete, plug-and-play communication system. The module combines a cutting-edge software-defined radio with an ultra-wideband, phased array antenna, offering a wide choice of communication parameters and dynamic reconfigurability of the system.

COMMPACK - Cross-link Communications Payload

The CommPack Cross-link Communications Payload uses building blocks from Cesium’s modular device ecosystem to enable mobile ad-hoc networking in space. This swarm technology is paving the way for future small satellite missions to the Moon, Mars, and beyond.

VIREO - Multi-beam Active Phased Array System

The Vireo is a multi-beam active phased array system for high-throughput satellites. The design addresses the state-of-the-art performance requirements for constellations under aggressive SWaP-C targets.


Software Defined Radio - SDR-1001

A high-performance, compact software-defined radio designed to operate in Low Earth Orbit (LEO) environments. The Cesium SDR-1001 sets a new standard in SWaP-C. The SDR-1001 includes four receive channels, four transmit channels, and a state-of-the-art FPGA in a credit-card-sized footprint. The module is suitable for demanding digital signal processing and communications applications. Use as a stand-alone software-defined radio or combine with other Cesium modules for a complete bits-to-photons solution.

Single-Board Computer - SBC-1461

The credit-card-sized module features a quad-core processor, error-correcting code memory, mass storage, selective redundancy, and multiple data interfaces in a compact formfactor. The Cesium SBC-1461 includes a software development kit for a Linux-based operating system (OS), providing a fast out-of-the-box solution.

Power Conditioning Unit - PCU-1C28

A high-efficiency, compact DC-to-DC converter designed to operate in Low Earth Orbit (LEO) environments that provides a regulated, isolated, 12V rail suitable for powering the full suite of Cesium communication products. The Cesium PCU-1C28 includes a fixed-frequency converter with integrated filters and protections as well as a digital interface for telemetry in a credit-card-sized footprint. Each module is parallelable with other Cesium PCUs for higher output power or hot redundancy.

Up/Down Converter - UDC-1AT1

A wideband up/down converter designed to operate in Low Earth Orbit (LEO) environments with an on-board frequency synthesizer and low power consumption all in a credit-card-sized footprint. The module supports time division up/down-conversion with 1GHz of instantaneous bandwidth and offers the ability to combine IF channels for further flexibility. The Cesium UDC-1AT1 includes a high-precision clock for LO generation; the module can provide this clock as a reference for other modules, or lock to an external system reference.

Application Highlights

Define your payload requirements and Cesium will configure a mission-ready solution customized to your application utilizing Cesium’s full-stack modular product line.

Cesiums full-stack modular communications systems
Cesium Lunar Comms

CesiumAstro, Inc., with support from The National Aeronautics and Space Administration (NASA), is accelerating radio frequency (RF) active phased array antenna development enabling dual function communications and sensing for lunar and cislunar applications across common Ka-band, TDRS (Tracking and Data Relay Satellite), and 5G mmWave frequency bands.

“CesiumAstro is building affordable, scalable antenna solutions that will form the backbone of a robust lunar communications infrastructure.”

CesiumAstro, Inc. released of the S-Band CommPack Inter-Satellite Link (ISL) for commercial, government and defense applications, built to NASA GEVS standards and available in volume. Designed for swarm operation and formation flying, CesiumAstro’s CommPack supports mobile ad-hoc networking (MANET) protocol to enable flexible flight scenarios for both small satellite and cube satellite applications. Multiple antenna support can provide full spherical coverage around the spacecraft.

Cesium Satellites

Pictured: Cesium Satellites 1 and 2 deployed from the U.S. Space Force’s Landsat-9 Evolved Expendable Launch Vehicle Secondary Payload Adapter (ESPA) Flight System (EFS).

CesiumAstro, Inc. has successfully deployed of its first two satellites featuring their leading-edge communications payloads aboard a United Launch Alliance Atlas V-401 rocket. Dubbed Cesium Mission 1(CM1), the duo of satellites will provide an on-orbit testbed for next generation wireless communications and sensing technologies.

CesiumAstro provides the flight-ready SDR-1001 credit-card-sized modular software-defined radio (SDR) for commercial, government and defense applications, tested to NASA GEVS standards and available in volume. Featuring 4 TX and 4 RX channels tunable from 300 MHz to 6 GHz, the SDR-1001 ships with a default BPSK/QPSK modem and optional FPGA Developer Toolkit enabling custom waveform development. Designed to meet the demanding requirements for launch, as well as the extreme conditions of space and airborne environments, the SDR-1001 integrates a flexible RF front-end with high-performance FPGA to support a 5-to-7-year mission duration.

Company Overview

Founded in 2017, CesiumAstro is a rapidly-growing aerospace company headquartered in Austin, Texas, with a second office location in the Denver area. The Cesium team consists of over 75 engineers, designers, scientists, and business professionals who are skilled in the design, development, manufacturing, and qualification of complex communication systems. Cesium believes that effective hardware solutions should not require added engineering from our customers, enabling them to focus on their core mission.

Visit Cesium Website


Can’t find what you’re looking for?

Natalie Myers

Inside Sales Administration

Natalie Myers joined Vic Myers Associates in September 2021 and is excited to be part of the team. She received her bachelor’s in business administration from the University of Phoenix and prior to her position as Inside Sales Administration she worked in the Hospitality Industry for over 15 years as a Senior Sales Administrator. In her free time, she enjoys spending time with her husband, daughter, family and friends along with watching sporting events, traveling, hiking and cheering on her daughter in dance and basketball! Natalie is located in our Arizona office.


People and Culture Specialist

Cell Phone: 505-720-9123
Email: karenr@vicmyers.com

Karen has been a part of Vic Myers Associates team since February 2023. Prior to her position as People and Culture Specialist, she worked in the Science & Technology field as an HR Manager & Project Lead for SAIC and LANL. In the short time with VMA she has learned a lot and looks forward to knowing our business even better in support of all of our employees. She values her church community, her two sons who happen to be engineers, volunteering, and golf. Karen is located in our Albuquerque, NM office.


Field Sales Engineer

Felecia Stivers, a native of Rockford, IL, now excels as a Field Sales Engineer at VMA in our Arizona office. Holding a BSEE from Arizona State University, she draws from her extensive background at Medtronic, Orbital Sciences, General Dynamics, and Northrop Grumman.

Specializing in high-reliability applications, Felecia stands out for her proficiency in relationship-building and innovative problem-solving. Whether contributing to medical devices or playing a vital role in rocket launches, her work has had a tangible impact on saving lives and safeguarding the nation.

Beyond her professional pursuits, Felecia enjoys time with her two teenagers, finds joy in travel, and actively engages with her local church. Driven by a passion for helping customers navigate cutting-edge technology, she is committed to delivering dependable solutions in fast-changing environments.


Field Sales Engineer

Taylor is a Texas native, and grew up in the small town of Boerne, Texas.  He attended Texas A&M University, where earned his bachelor’s degree in Engineering.  After college he was recruited by a Manufacturer’s Rep Firm, where he spent the first 7 years of his career. Initially hired on as an inside salesperson, Taylor quickly accelerated within the organization and expanded into various other roles such as Distribution Manager, and Field Sales Engineer.  Taylor then spent the following 7 years working for an electronic component distributor named Electro Enterprises that almost exclusively supported the mil/aero market.

Taylor worked as a Field Sales Engineer supporting the Texas, Utah and New Mexico territory, Product Manager, as well as Director or Business Development where he managed a team of 10 Field Sales Professionals across the entire United States.  Gathering from his previous experiences, Taylor has now taken on the role of Field Sales Engineer with Vic Myers supporting the Texas, Oklahoma, Louisiana, and Arkansas territory.  Outside of the office you will usually find Taylor either spending time with his wife and two young children, or out on the lake bass fishing.


Sales Engineer

Richard was born and raised in Arizona. Attended Arizona State University with a focus in Mechanical Engineering and then fell into Technical Project Management. After 12 years of managing large budget projects spanning system integrations and upgrades, he transitioned into the role of Field Sales Engineer with VMA.

Richard has a deep passion for building relationships with his clients and principals, and supporting them to problem solve and develop innovative solutions. Outside of the office, Richard can be found volunteering as a mentor and coach of high school students at his church, running and hiking the extensive trails of Arizona, and spending time with his wife, 2 boys, 2 girls, and 2 grandkids. Richard is located in our Arizona office.


Sales Administration

Cell Phone: 480-345-6449
Email: tarins@vicmyers.com

Tarin was born and raised in Wisconsin, graduated from the University of Wisconsin-Stout and received a Bachelor of Science degree in Business Administration. Prior to Vic Myers she worked in the hospitality industry 20+ years as a Sales Analyst/Administrator.

In her spare time, Tarin enjoys spending time with her family, traveling to historical sites throughout the United States, reading, going to movies and concerts. On the weekends you will find Tarin at her nephews’ band concerts and baseball games. In addition, music and dance have been a part of her life with musical contrasting influences ranging from Prince to Olivia Newton-John.  Tarin is located in our Arizona office.