Parts & suppliers.

One chain per ground terminal. Proposed spacecraft RX 14.0–14.5 GHz; TX 11.7–12.2 GHz.

Each path: 10 Mbps net transmit and receive simultaneously, FEC, framing, acquisition and Doppler tracking.

2 W usable linear RF per downlink after waveform backoff; thermal and space qualification required.

Independent remote/gateway pointing; dual-band RX/TX. 160 × 160 mm allocation per aperture.

Protect receivers from transmitter leakage; suppress unwanted emissions.

Low-loss cables, waveguides and connectors joining RF chains and antennas.

Base 40 kg configuration only: at least 20 Mbps received plus 20 Mbps transmitted across two ground links. Crosslink configurations replace this allocation with NL-053.

Recovery radio and antenna usable when broadband pointing or payload operation fails.

Concept envelopes: base 300 × 300 × 600 mm; SCOT30 study 450 × 450 × 700 mm; SCOT80 study 600 × 600 × 800 mm. Optical heads and wings extend beyond the bus.

Watchdog, housekeeping, commands, safe mode, deployment sequencing and payload control.

Base configuration: P80 comparison supports up to 300 W solar input. Optical variants require the redesigned 600 W system in NL-054.

Base: two 600 × 1200 mm wings, 1.44 m² and 300 W sunlight target. SCOT30 study: two 900 × 1200 mm wings, 2.16 m². SCOT80: two 1200 × 1200 mm wings, 2.88 m². Both optical variants target 600 W useful sunlight generation.

Base study: 400 Wh nameplate. Optical variants: 500 Wh target with protected charge/discharge paths. One selected battery configuration.

Fuse sensors and control orientation for selected 40 / 65 / 80 kg study. Supply time-tagged attitude and pointing interfaces to each optical terminal.

Three-axis control with redundant wheel arrangement; size momentum capacity and torque.

Detumble and unload wheel momentum.

Precise attitude measurement with suitable Sun/Earth exclusion and mounting.

Attitude estimation and safe-mode orientation; control magnetic contamination.

Orbit position, velocity and time for antenna pointing and frequency compensation.

Compatible bands, receiver interface, sky view and spacecraft placement.

Dated manufacturer sheet: 0.5–1 mN, 64–120 W, 28 V supply. This is a sizing comparison, not an installed selection.

Radiators, straps, insulation, heaters and temperature sensors; include up to 160 W from two SCOT80 channels plus bus and power-conversion loads.

Hinges, hold-downs, releases, harness routing and deployment sensing.

Attachment and controlled release; must match launch-provider interface and loads.

Locking connectors, pinouts, grounding, protected wiring and release/transmit inhibits.

Removable panels, vents, electrical bonding, surface finishes and access clearances.

Two LEO tracking terminals for one end-to-end route; diameter selected by the link planner (0.6–1.8 m), dual-band Ku feed.

Rapid pass tracking, near-overhead geometry, calibration and orbit prediction.

Proposed 14.0–14.5 GHz band; current simulation uses 5 W linear RF. Original 10 W BUC candidate needs waveform backoff and reference/IF verification.

Receive 11.7–12.2 GHz and supply compatible intermediate frequency to modem.

Connect transmit and receive paths to each dish with adequate isolation.

Matching spacecraft waveform; simultaneous 10 Mbps net each way, Doppler compensation and Ethernet.

Compatible reference stability, signal level and connectors for BUC, receiver and modem.

Tracking, modem control, routing, logging and remote management.

Support RF, tracking motors, modem and computer through peak loads.

Foundation, weatherproof enclosure, grounding, surge protection and RF cabling.

Sustain terminal through local weather and seasonal solar conditions.

Wired/fibre or another suitable internet connection at the gateway.

Prototype one simultaneous bidirectional link at intermediate frequency. B210 covers 70 MHz–6 GHz, full duplex, up to 56 MHz real-time bandwidth.

Run waveform processing and measure simultaneous useful IP throughput.

Conducted RF testing; calculate attenuation and power ratings to protect receivers.

Test synchronized operation and realistic oscillator offsets.

Measure spectrum, signal quality, receiver sensitivity and interference.

23 dBi integrated antenna; six radios make three dedicated point-to-point edges. Includes a 24 V passive PoE adapter.

One router per site joins dedicated backhaul radios and local clients; routing and failure recovery must be configured.

One client access point per site. Local Wi-Fi is separate from the airMAX point-to-point backhaul.

Planning allowance: two protectors per outdoor backhaul cable run; bonding and local installation design required.

Three sites: mast/foundation, shielded Ethernet, earthing and professional installation.

Three sites: mains or off-grid generation, correct PoE injectors, backup and enclosures.

LEO mount, dual-band dish/feed, BUC/LNB, modem, reference and integration. Mesh radio prices do not include a satellite terminal.

Published: 2.5 / 10 Gbps bidirectional, up to 8,000 km; 11.9 kg per optical channel, 60–80 W, 28 V, Ethernet; 31 × 29 × 47 cm head plus 26 × 19 × 24 cm electronics. Simulation uses a conservative 1,000 Mbps net study cap.

Published: symmetric up to 1.25 Gbps; up to 3,500 km depending on configuration; mass <6 kg, peak <60 W, 230 × 280 × 200 mm. Simulation allocates 6 kg per unit and uses 100 Mbps net.

Target at least 1 Gbps net bundle forwarding and 100 MB payload buffering with error correction, watchdog recovery, time-tagged contact plans and terminal Ethernet interfaces. Size storage for the mission queue, not just one test file.

600 W sunlight input target, 500 Wh battery interface, two protected terminal feeds, controlled inrush and bus-specific voltage conversion. Support up to 160 W optical terminal load, router, Ku radio, heaters and duty-managed propulsion.

Terminal mounting load paths, isolation from wheel jitter, optical alignment stability, heat straps and added radiator panels. SCOT80 model depicts about 1 m² gross radiator allocation including the enlarged bus radiator.

Two terminal fields of regard, ephemeris exchange, terminal pairing, acquisition timing, boresight calibration, contamination control, keep-out zones and time synchronization. Confirm wavelength and channel pairing from the vendor interface document.