The Evolution of Satellite Technology

Satellite technology has undergone a dramatic transformation over the past decade. The era of traditional broadcast-only satellites is giving way to a new generation of highly flexible, multi-purpose spacecraft — and at the forefront of this revolution are Very High Throughput Satellites (VHTS).

Understanding what these satellites do — and what they mean for ordinary TV viewers — is increasingly important as the broadcasting landscape shifts.

What Is a VHTS Satellite?

A Very High Throughput Satellite is designed to deliver enormous data capacity — hundreds of gigabits per second — compared to traditional broadcast satellites that typically offer a few gigabits. This is achieved through:

  • Frequency reuse: Using the same frequency bands multiple times across different geographic spot beams
  • Advanced spot beam technology: Dozens or even hundreds of narrow, high-power beams covering specific regions
  • Higher-order modulation: More efficient signal encoding that packs more data into the same spectrum
  • Ka-band operation: Most VHTS satellites operate in the Ka-band (26.5–40 GHz), which offers more available spectrum than the Ku-band used by traditional broadcast satellites

Impact on Broadcasting

For traditional satellite TV broadcasting, VHTS technology brings several significant changes:

Ultra-HD and 8K Transmission

The enormous capacity of VHTS platforms makes it economically viable to broadcast Ultra-HD (4K) and even 8K content at scale. Traditional satellites can carry 4K channels, but VHTS platforms allow operators to carry many more simultaneously without sacrificing quality.

IP-Based Broadcasting

VHTS satellites are enabling a shift from traditional broadcast delivery (where every viewer receives the same signal) toward IP unicast delivery — where content is streamed directly to individual viewers over satellite broadband. This allows for personalised content, on-demand delivery, and interactive services that traditional broadcasting cannot support.

Hybrid Broadcast-Broadband

Many modern smart TVs and set-top boxes now support HbbTV (Hybrid Broadcast Broadband TV) — a standard that combines traditional satellite or terrestrial broadcasts with internet-delivered content. VHTS satellites provide the high-speed backhaul that makes this seamless, especially in rural areas without fibre broadband.

What Does This Mean for Viewers?

For everyday satellite TV viewers, the transition to VHTS technology is largely transparent in the short term. Your existing dish and receiver will continue to work for traditional broadcast channels. However, the longer-term implications are significant:

  • More 4K channels becoming standard in premium packages
  • Satellite broadband becoming a genuine alternative to terrestrial internet in rural areas
  • Interactive and on-demand features appearing in set-top boxes delivered over satellite
  • Gradual migration of some channels from traditional broadcast to IP delivery

Key Players in the VHTS Space

Several major satellite operators are investing heavily in VHTS infrastructure:

  • Eutelsat — With its Konnect VHTS satellite serving Europe and Africa at Ka-band
  • SES — Operating O3b mPOWER, a medium-Earth orbit VHTS constellation
  • Intelsat — Galaxy and IS series VHTS satellites serving the Americas and Asia-Pacific
  • Viasat — ViaSat-3 constellation offering terabit-class capacity globally

The Road Ahead

The transition from legacy GEO broadcast satellites to VHTS and low-Earth orbit (LEO) constellations like Starlink is accelerating. For the broadcasting industry, this means a fundamental rethink of how content is delivered — blending traditional linear TV with on-demand, interactive, and personalised services over a unified satellite infrastructure. Viewers in the coming years will benefit from better picture quality, more content choice, and improved reliability.