# Space Force Seeks RF Cross Link Input

The U.S. Space Force's Space Systems Command (SSC) is actively soliciting industry input on high technology readiness level (TRL) radio frequency (RF) cross links for the SG-XX space-based surveillance constellation. This program is a follow-on to the National Reconnaissance Office (NRO)-led SILENTBARKER initiative and aims to enhance detection capabilities against threats to critical U.S. satellites operating in geosynchronous orbit. This solicitation signals upcoming procurement opportunities for contractors specializing in advanced RF communication technologies and space-based surveillance systems.

- The SSC is focusing on mature, high-TRL RF cross link technologies to support the SG-XX constellation, indicating a near-term acquisition phase.
- This effort builds on the SILENTBARKER program, highlighting continuity and expansion in space-based threat detection capabilities.
- Contractors with expertise in RF communications and space systems should evaluate their technology readiness and consider engagement with SSC for potential contract awards.
- Procurement professionals should prepare for forthcoming solicitations that may require demonstration of advanced RF cross link capabilities suitable for geosynchronous orbit applications.

**Jurisdictions:** federal
**Industries:** Defense & Military
**Topics:** Digital Infrastructure
**Published:** September 17, 2026

### Government Entities
- Space Systems Command (SSC)
- U.S. Space Force
- National Reconnaissance Office (NRO)

### Sources
- [Space Force's SSC Wants Industry Input on High TRL RF Cross Links for SG-XX - Defense Daily](https://www.defensedaily.com/space-forces-ssc-wants-industry-input-on-high-trl-rf-cross-links-for-sg-xx/space) - Defense Daily