GitLab

Satellite name

1. VR3X-A
2. VR3X-B
3. VR3X-C

Description

V-R3x is a NASA Ames, Stanford, and Carnegie Mellon mission demonstrating on-orbit topology recovery and distributed radiation measurements. All three 1U spacecraft were built using PyCubed hardware. The entire project design repo will be made public shortly.

• All three spacecraft have identical RF info (below).
• Launch January 2021

Image

Transmitter 1

UHF Radio - 915.6 MHz

Transmitter Name

HopeRF RFM95PW (akin to Semtech SX1276)

Type

Transceiver

Service

'Space Research'

Downlink Frequency

9.156e+8 Hz (915.6 MHz)

Downlink Mode

LoRa SF7, BW62500, CR8 = ~3000 bps Explicit preamble of length 8 Sync word = 0x12

Dowlink Encoding

Beacon: raw bytes (interactive decode here)

Downlink (via command only): base64

Uplink Frequency

9.156e+8 Hz (915.6 MHz)

Uplink Mode

LoRa SF9, BW250000, CR8 = ~2000 bps Explicit preamble of length 8 Sync word = 0x12

Uplink Encoding

Raw bytes

Call Sign

KD2BHC

TBD

• operator call sign [2021-01-05]
• NORAD catalog number
• websites: https://www.nasa.gov/ames/v-r3x/ http://vr3x.space/

(will announce pending internal approval)

• transmitter 2 details
• make full spacecraft design repo public