Infrastructure

Ground Station Network

Four operational stations across the Pacific Rim, North Atlantic, Mid-continent, and Southern hemisphere. S-, X-, and Ka-band. Apertures from 3.7m to 9.0m. Each station operates 24/7 with maintenance windows disclosed 72 hours in advance — never surprise downtime.

4
Active stations
99.4%
Network uptime SLA
24/7
Operations
Station Profiles

Four Stations. Every Orbit Zone.

Zenith Station Alpha Operational

Pacific Rim — Western US coastal access

Apertures
3.7m, 5.4m
G/T
18.5 – 22.1 dB/K
EIRP
52 – 58 dBW
Uptime SLA
99.4%
S-band X-band
Apex Station Bravo Operational

North Atlantic — Europe/East US corridor

Apertures
5.4m, 7.3m
G/T
22.1 – 26.4 dB/K
EIRP
58 – 64 dBW
Uptime SLA
99.5%
S-band X-band
Meridian Station Charlie Operational

Mid-continent — Central access zone

Apertures
3.7m, 7.3m
G/T
18.5 – 26.4 dB/K
EIRP
52 – 64 dBW
Uptime SLA
99.3%
S-band X-band
Austral Station Delta Operational

Southern hemisphere — Polar orbit access

Apertures
7.3m, 9.0m
G/T
26.4 – 29.8 dB/K
EIRP
64 – 68 dBW
Uptime SLA
99.4%
X-band Ka-band
Technical Specifications

RF and Tracking Specifications

Tracking System

ParameterValue
Autotrack accuracy<0.05 – 0.08 mdeg RMS
Azimuth range0° – 360° continuous
Elevation range5° – 90°
Max slew rate10°/s Az · 6°/s El
Tracking modesProgram / Step / Monopulse
Doppler compensationFull pre-compensation

RF System

ParameterValue
LNA noise temperature30 – 45 K (aperture dependent)
PA power (X-band)200 – 600 W
PA power (Ka-band)100 – 300 W
PolarizationLHCP / RHCP / Linear
Uplink frequencyS: 2025–2120 MHz · X: 7900–8400 MHz
Downlink frequencyS: 2200–2290 MHz · X: 8025–8400 MHz · Ka: 25.5–27.0 GHz
Platform Diagram

Antenna Feed Assembly

Parabolic dish antennas with precision Az/El mount, feed horn assembly, low-noise amplifier chain, and rotary joint for continuous 360° azimuth rotation. All stations use mechanically steered autotrack — not phased array.

Cross-section engineering diagram of a parabolic dish antenna showing primary reflector, feed horn, LNA, and azimuth-elevation mount components
Service Levels

Uptime SLA & Maintenance Policy

01

99.4% Network Uptime

Our per-station uptime commitment is 99.4% calculated on a rolling 30-day basis. Scheduled maintenance windows are excluded from uptime calculations provided 72-hour advance notice is given. Credits apply for shortfalls exceeding 0.6% in any 30-day period.

02

72-Hour Maintenance Disclosure

All planned maintenance events — firmware upgrades, calibration cycles, feed assembly inspections — are disclosed via the API webhook system and email notification at least 72 hours before the start of the window. Emergency maintenance events are communicated as soon as technically feasible.

03

Contact Redundancy Routing

Constellation and Custom Network tier operators receive automatic redundancy routing. If your scheduled station becomes unavailable within 6 hours of your contact window, the scheduler automatically identifies and offers the nearest available alternative station with compatible aperture and frequency band. No manual intervention required.

Run your link budget. Then schedule your first contact.

G/T, EIRP, and tracking accuracy specs are published above. If the numbers close, send us your NORAD ID — first contact within 48 hours.