SpaceX is apparently taking matters into its own hands when it comes to the hardware required for its upcoming direct-to-cell satellite network. According to a recently discovered job posting, the aerospace company is actively preparing to develop its own custom radio frequency chip modules designed specifically for smartphones connecting to Starlink Mobile.
While SpaceX initially said it had no intentions to build a phone or provide hardware to phone OEMs in the past, this plan appears to have now begun to change in the wake of the purchase of additional spectrum. Slower phone OEMs cannot keep up with SpaceX’s rate of innovation, and providing chipsets directly to them will ensure that SpaceX can provide high-speed data alongside its current provision of texting and phone calls in remote locations.
The Multi-Chip Module Initiative
The new job listing reveals that SpaceX is looking to hire an engineer specializing in radio frequency front-end module design. In a standard smartphone, the RF front-end works alongside the primary modem to transmit and process wireless signals. It is an intricate cluster of antennas, signal tuners, and power amplifiers that filter out background noise and efficiently amplify the connection.
According to the posting, the engineer will be tasked with developing "cutting-edge RF modules for deployment into the Starlink Mobile network." This includes designing highly integrated multi-chip modules that contain all the necessary RF front-end components for 5G, LTE, and Wi-Fi applications.
Perhaps most interestingly, this is not just a theoretical research position. The listing explicitly calls for the engineer to integrate these RF modules into Printed Circuit Board Assemblies and to perform yield analysis for high-volume production, signaling that SpaceX intends to manufacture these components at scale.
Optimizing for Space-Based Communications
The decision to develop RF modules in-house makes complete sense given the unique physics of satellite communication. Standard smartphone antennas are optimized to connect to terrestrial cell towers located just a few miles away. Connecting a standard, unmodified smartphone directly to a satellite moving thousands of miles per hour over 200 miles overhead is a massive engineering hurdle.
By designing the RF front-end module themselves, SpaceX can perfectly optimize the hardware to speak to its orbiting constellation, ensuring maximum signal amplification and minimal battery drain on the user's device.
The Mid-2027 Upgrade Timeline
This hardware development push is closely tied to SpaceX's ongoing efforts to drastically upgrade the capabilities of Starlink Mobile. The Starlink engineering team is currently working to harness valuable radio spectrum it recently acquired from EchoStar, the parent company of Boost Mobile.
SpaceX plans to utilize this new spectrum on its next-generation satellites, which are slated to launch in mid-2027. This next-generation architecture aims to boost the network's speeds from the current 4 Mbps up to an impressive 150 Mbps, effectively bringing true 5G connectivity to the most remote corners of the globe.
Partnering with Phone Manufacturers
Earlier this year, Elon Musk noted that it would likely take a two-year timeframe for phone manufacturers to adopt the new chipsets required to support these specific EchoStar radio frequencies. Last month at the Mobile World Congress, a SpaceX executive confirmed the company is working closely with device and modem manufacturers, with rumors suggesting Samsung is already developing a compatible modem.
By manufacturing its own optimized RF front-end modules, SpaceX would likely supply these turnkey components directly to device manufacturers. This approach could accelerate the adoption timeline, ensuring that the next generation of smartphones is fully Starlink-ready right out of the box without requiring manufacturers to design space-optimized antennas from scratch.
As Starlink Mobile prepares for a wider rollout across T-Mobile, Boost Mobile, and US Mobile, this vertical integration strategy proves that SpaceX is not just building a network in the sky. The company is actively shaping the hardware in our pockets to ensure the service delivers on its massive promises.
