Satellites: Communications, Imaging and Space Technology - Yenra

Plan satellite connections, interpret imagery and navigation signals, and understand spacecraft engineering through ten practical guides.

An Earth globe, satellite, ground dish, CubeSat, circuit board and river terrain model arranged on ivory plinths.
Explore satellite connections, Earth observation, navigation and the engineering that supports them. Conceptual illustration.

Use these ten guides to choose and plan satellite connections, make better image comparisons, follow navigation milestones and assess spacecraft technology. Earlier reports remain available below with their historical dates.

Connections and networks

A ground dish, router and gateway model stand beside a satellite and an Earth globe.

Satellite Communications: How Links Work and What to Check

Understand the path from terminal to satellite to ground network, then plan coverage, latency, power and backup checks.

A remote house model with a satellite terminal, indoor router and three abstract choice tiles.

Satellite Broadband: Choose a Service for Your Home or Business

Compare site suitability, upload needs, latency, data policies and total cost, then test the applications you depend on.

A portable flat-panel satellite terminal sits on a field table with a laptop, battery and notebook.

BGAN: Plan a Portable Satellite Connection for Field Work

Match BGAN terminals and service modes to a field task, estimate data use, and prepare an offline deployment and recovery record.

A generic rackmount satellite modem and disconnected cable sit beside a dish model and abstract signal display.

Satellite Modems: Read the Specifications and Diagnose the Link

Distinguish symbol rate from useful throughput, check network compatibility, and collect the right evidence before changing a satellite modem.

An office model is connected to two separate equipment cabinets by teal and amber conceptual paths.

Enterprise Satellite Service: Evaluate SLAs and Test Recovery

Compare committed capacity, availability definitions and support responsibilities, then test business applications through outage and recovery.

Three rural school and branch models with satellite dishes, solar panels and network cabinets surround a planning map.

Broadband Satellite Networks for Schools and Remote Branches

Plan site workloads, shared capacity, local Wi-Fi, power and support, then pilot the service before expanding across locations.

Imaging and navigation

Two conceptual river terrain tiles and pixel-grid images sit beside a small observation satellite model.

Satellite Imaging: Find Data and Make a Fair Comparison

Choose public satellite imagery, understand resolution and cloud limits, and record a reproducible before-and-after comparison.

A navigation satellite and Earth globe stand behind a rocket model, clock and GNSS receiver.

GPS III Launches: From Liftoff to Usable Navigation Signals

Understand GPS III launch and commissioning milestones, separate satellite status from signal status, and follow official navigation notices.

Spacecraft engineering

Three small satellite models of different sizes stand on ivory display plinths.

Small Satellites and CubeSats: Understand the Mission Tradeoffs

Connect a small spacecraft payload to power, pointing, communications and operations budgets, and assess constellation claims.

An ivory FPGA package on a navy circuit board sits beside three smaller logic blocks and a glass particle display.

Radiation-Tolerant FPGAs: Evaluate the Evidence

Separate radiation effects, read device-specific test conditions, and connect mitigation claims to a verifiable mission design.

Historical satellite and high-altitude platform reports

These ten articles retain reporting from 2001–2017. Read service, product and project claims in the context of their publication dates.

DIRECTV Satellite

Historical report, created May 23, 2005.

High Altitude Airship

Historical report, created April 14, 2005.

Stratellite

Historical report, created August 8, 2004.

Stratellites

Historical report, created March 10, 2004.

MBSAT

Historical report, created March 13, 2004.

New Skies Satellites

Historical report, created December 17, 2002.

Advanced Technologies Group - ATG - Stratsat

Historical report, created July 12, 2001.

Milstar

Historical report, created February 12, 2004.