NanoUHFComms Mission Overview

Presenter Information

• Nazia Mozaffar, Naval Information Warfare Center PacificFollow
• Salwan Damman, Naval Information Warfare Center Pacific
• Ryan Hiser, Naval Information Warfare Center Pacific
• Lizbeth Durbin, Naval Information Warfare Center Pacific
• Jose Ruvalcaba, Naval Information Warfare Center Pacific
• Alejandro Castro, Naval Information Warfare Center Pacific
• David Sadowski, Naval Information Warfare Center Pacific
• Dmitriy Obukhov, Naval Information Warfare Center Pacific
• Brendan HIll, Naval Information Warfare Center Pacific

Session

Next on the Pad

Location

Salt Palace Convention Center, Salt Lake City, UT

Abstract

The NanoUHFComms experiment seeks to demonstrate the ability to detect and correct Doppler offsets caused by the relative high velocity between Low Earth Orbit (LEO) spacecraft and terrestrial nodes. The payload includes a Rincon Research Corporation AstroSDR with external Low Noise Amplifier (LNA) for the receive band and an external power amplifier for the transmit band. The uplink and downlink bands are combined with a diplexer before connecting to a common antenna mounted on the spacecraft. The demonstrations planned for the orbit testing include a relay mode which will detect and correct the Doppler offset of an uplink signal, translate it to the downlink band, and pre-distort the signal with the opposite of the expected Doppler that would be seen on the downlink. Testing will include a transmitter and receiver co-located on the same point on Earth as well as a transmitter and receiver on two separate points on Earth out of view of one another but both in view of the satellite. In addition, a full receive, stow and forward, and retransmit capability is being developed. The experiment is participating in the Department of Defense Space Test Program and was launched aboard STPSat-7 in 2026.

Document Type

Event