Internet on Private Jets

In today’s world of business, being connected to the web 24/7 is a must. However, what happens when you have to travel on plane? With more airlines rolling-out inflight WiFi I get asked a lot about having the internet on a private jet…

With the demand for in-flight connectivity in the business aviation market getting stronger every day, providers are moving to the next stage of development. This involves extending the list of aircraft types on which on-board internet can be installed, expanding its capabilities beyond web-surfing for passengers and ensuring systems are future-proofed to keep pace with rapidly evolving technology.

With most of the larger jets like the Global Express, Gulfstream G550 and Falcon 7X having online WiFi, we are now seeing most of the major in-flight connectivity players, on both the air-to-ground (ATG) and satellite sides, developing systems for the smaller business jet and turboprop market, and about the potential for high-speed in-flight broadband to add another great benefit to private jet travel.

I recommend when buying or even chartering a private jet you make sure the jet is equipped with internet service.

Because people are used to 4G and soon 5G speeds nearly everywhere on the ground, they are expecting similar level of connectivity and speed when on a private jet.

You will hear the terms KA & KU band. The symbol 'KU' refers to Kurz-unter (German) which mean below the K-band. Likewise the symbol 'KA' refers to K-above meaning above the K-band.

The advanced High Throughput Satellites (HTS) have been designed to take care of wireless technology providing optimal, high-speed, and reliable wireless connectivity while on a plane.

HTS technology boasts an unprecedented bandwidth capability, and is widely viewed as the future of satellite communications. Typically for HTS systems, the KU-band or the KA-band of the electromagnetic spectrum are used.

In recent years owing to the explosion in Internet based applications, the demands for higher satellite capacity has skyrocketed. The capacity of the lower KU-band of the spectrum is falling short, and investments are now being made in the use of the KA-band. These bands are not interchangeable, and each has its own advantages and disadvantages, which makes it suitable for one set of applications and unsuitable for another.

Before we examine the differences between KA-band and KU-band, let me explain more about the HTS systems.

High Throughput Satellites (HTS)

In the High Throughput Satellites system, the coverage area is divided into small regions known as spots. Each spot is then served by a spot beam. This is unlike the conventional system where one large beam is used to serve the entire area of coverage.

Each spot beam covers an area that is only about 1% to 2 % the size of the conventional beam. This makes the beams provide high signal strength as well as gain. Thus overall performance is better than that of the conventional system.

Newer advanced technology also allows more accurate antennas to be built and thus the spots can be made smaller. This makes it possible to reuse frequencies multiple times, making HTS satellites more efficient.

KU-band

The KU band refers to the band of electromagnetic frequencies in the range of 12-18 GHz. It is located directly below the K-band.

This band is mainly used for fixed as well as broadcast satellite communication services. It is also used in specific applications such as in communications between Soyuz space capsule and the International Space Station (ISS), as well as radar applications.

KA-band

The KA-band of the electromagnetic spectrum comprises frequencies in the range of 26.5-40 GHz. This band is located directly above the K-band.

The frequencies in this band are used for close-range military radars, vehicle speed detection, and few other specific applications. NASA's Kepler mission utilizes frequencies in this band to down-link scientific data collected by the space telescope.

KA-band Vs. KU-band

Availability of Spectrum

The C-band and KU band of the electromagnetic spectrum have been around for a long time. As such, there are an extensive number of satellites and services which use frequencies in these bands.

Compared to this, the use of frequencies in the KA-band has only recently started gathering steam. This fact, coupled with the frequency-reuse capability of the multiple spot beam technology of the HTS, increases the usable spectrum that is available.

Coverage Area

The KA-band satellites which are currently in orbit serve only specific and limited geographical regions. For example, the ViaSat-1 launched in 2011, only provides coverage to North America. Similarly, the KA-Sat launched in 2010 serves only Europe, the Mediterranean basin, and small regions in the Middle East.

Obviously, none of these are a viable option for ships or intercontinental airplanes, which need to traverse the non-covered oceanic zone. Also, due to the receding polar ice caps, in recent years, vessels have begun traversing the now navigable Northeast and Northwest passages. The current KA-band satellites are incapable of providing coverage to them.

KU-band satellites, on the other hand, are more in number and have a much wider coverage area in comparison to KA-band satellites. Further, satellites communicating over the lower L-band, presently are a more viable option for most ocean-going vessels.

Interference

The KU-band satellites are often placed as little as two degrees apart from each other in the Earth's orbit. This increases the chances of adjacent satellite interference.

The KA-band satellites are placed further apart from each other, and therefore, the chances of antennas transmitting to non-targeted satellites and interference between signals is much less.

Antenna Sizes

The size of antenna is inversely proportional to the frequency band of the signal it transmits or receives. Hence, smaller-sized antennas can be used for the systems that operate on the KA-band as compared to the ones used for the KU-band. Since the antenna sizes are smaller, their cost too would be lower. They should also be easier to install.

Rain Fade

The frequencies in the KA-band are nearly double that of the frequencies in the KU-band. Since wavelength is inversely proportional to frequency, the wavelengths of signals in the KA-band are much smaller than those of the KU-band. This makes them more susceptible to bad weather and other atmospheric disruptions.

Rains drops are known to absorb signals having frequency above 11 GHz. This effect is known as rain-fade. Snow and ice too absorb these high frequency signals. Both KU-band and KA-band signals suffer from rain fade; however, the fading is larger for KA-band signals owing to their higher frequencies.

Backup

Since there are a number of satellites currently in orbit which function on the KU-band, there won't be a problem finding a backup satellite to maintain a continuous link in case the main satellite develops a fault.

However, in comparison, there are far fewer satellites that function in the KA-band of the spectrum, and the ones that do, are often part of a closed network. So, in the event of failure, it will be very difficult to find a backup satellite to maintain the communication link.

Equipment Cost

Due to lower demand, KA-band-capable equipment are less common in the market as compared to KU-band-capable equipment. Therefore, the cost of KA-band equipment and systems typically is higher than the Ku-band ones. To install KA-band in a Gulfstream G550 we are talking around $750K.

It is true that, at present, systems designed specifically for direct-to-home users are becoming available to a wider market. This may decrease the equipment cost as sales volume increases. However, currently, the cost of equipment and components remain on the higher side.

The use of signals in the KA-band is clearly the next step in the evolution of satellite communication. Considering the higher bandwidth requirements of today, one can even say that it is a necessity. However, that doesn't mean that it will abolish the KU-band operations. Even though the technological shift towards higher frequency signals will continue to push many more applications to communicate in the KA-band in the future, the KU-band, like the C-band and the L-band before it, will continue to remain important and reliable options.

Using WiFi on a Private Jet Charter

If you are chartering WiFi is often not included in the price and you are charged a fee based off of how much you use. Here are 3 simple tips you can use to avoid the common WiFi mistakes that could cost you hundreds, or even thousands, whilst enhancing your in-flight experience with hardly any effort at all:

1.  Check your device’s settings prior to departure and disable app, system and program updates and automatic syncing.

2.  Ask your flight crew for the aircraft’s WiFi rate sheet and be aware of charges per megabyte of data

3.  Download any files, games, music and movie files ahead of time to avoid streaming any media or large download activities

Fabrizio Poli is President of Maple Jets Group. He is also an accomplished Airline Transport Pilot having flown both private Jets and for the airlines. Fabrizio is also a bestselling author and inspirational speaker & has been featured on Russia Today (RT), TRT World, Social Media Examiner, Bloomberg, Channel 5, Chicago Tribune, Daily Telegraph, City Wealth Magazine, Billionaire.com, Wealth X, Financial Times, El Financiero and many other Media offering insight on the aviation world. Fabrizio is also regularly featured as an Aviation Analyst on Russia Today (RT) and TRT World. Fabrizio is also aviation special correspondent Most Magazine. Fabrizio is also considered one of the world's top 30 experts in using Linkedin for business. You can tune in weekly to Fabrizio's business Podcast Living Outside the Cube available both in video & audio. You can also follow Fabrizio's aviation videos on Biz Jet TV  Fabrizio is also a published author.