Primary selection criterion for a satellite system from a service planner’s perspective When selecting a satellite system for a service deployment, the first determining factor (before detailed link budgeting) is typically its:

Introduction / Context:
Before fine technical details, a provider must ensure the satellite can physically illuminate the required geographic market. This is dictated by the satellite’s beam coverage (footprint).

Given Data / Assumptions:

• Service targets a defined region (country/continent/offshore zone).
• Different satellites offer different beams and footprints.

Concept / Approach:
Coverage area is a gating criterion: if the satellite cannot cover the target region with sufficient EIRP and G/T, no amount of link optimization will make it suitable. Only after confirming footprint do planners compare EIRP, transponder bandwidth, polarization, and spectrum.

Step-by-Step Solution:
Identify the business region.Select satellites whose footprints cover that region with adequate levels.Then perform link budgets using EIRP, G/T, and bandwidth to pick among candidates.

Verification / Alternative check:
Operator coverage maps are consulted first; only covered areas proceed to technical and commercial evaluation.

Why Other Options Are Wrong:
Raw EIRP, antenna size, gain, or IF are secondary unless the region is covered; they cannot compensate for absent footprint.

Common Pitfalls:
Over-focusing on EIRP numbers without checking whether the beam actually covers the service area of interest.

Final Answer:
Coverage area (footprint over the intended service region)