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Friday, June 24, 2016

Cybersecurity and Phased Arrays - PP848 and PP792

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The Ku/Ka satcom subcommittee met the last two weeks to progress the latest AEEC standards and characterstics defining secure broadband conn...
Wednesday, June 8, 2016

Aviation Data Link - Security, Segmentation, QoS

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Beginning in 1978, aircraft data link emerged using a VHF network named ACARS (Aircraft Communication, Addressing and Reporting System).  AC...
4 comments:
Saturday, May 21, 2016

Air Safety Investigation

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The first and foremost response to any incident is rapid rescue and for sympathy to victims, survivors, and those that loved them. Timely ...
1 comment:
Thursday, May 12, 2016

Double Secret Environmental Conditions and Test Procedures for Airborne Equipment

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RTCA produces DO-160, Environmental Conditions and Test Procedures for Airborne Equipment RTCA DO-160G Sections
1 comment:
Friday, April 29, 2016

OneWeb: Key Characteristics and Aero Application

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The public has its first good glance into what is OneWeb
Friday, April 22, 2016

Aero Antennas: Bigger is Better!

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ThinKom and QEST are both promoting Ka-band flat panel antennas that use about a 25" aperture for receive.  ARINC 791 provision...
Monday, April 4, 2016

It Takes a Village

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Delivering a consistent Internet experience to an airline passenger demands adequate provisioning for the peak periods (highest conten...
1 comment:
Tuesday, March 29, 2016

Show Me the Gbps: When 1 + 1 > 2

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Some airlines offer passengers connectivity for free, others make the passengers pay, and in the end most will offer a mix of free and pa...
2 comments:
Tuesday, March 22, 2016

Average Data Rate and Usage - Use Cases

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Every Internet access session is a unique experience generating a unique amount of usage (as measured broadly in MBytes). Light, average, he...
4 comments:
Friday, March 18, 2016

My Take on "Take-Rate"

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1 comment:
Monday, March 7, 2016

Satellite 2016 - Day 1

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Software defined payloads, beam-forming arrays, and unfurling antennas are just a few of the technologies to power the digital satellite ...
1 comment:
Wednesday, March 2, 2016

Reflecting on the Boeing 727

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http://www.boeingimages.com/ Boeing 727 The first flight of the Boeing 727 began with a center-engine surge after takeoff.  It settle...
Tuesday, March 1, 2016

Cisco Forecast: One mobile device needs 150 kbps today, 500 kbps in 2020

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Sunday, February 28, 2016

Beam Hopping, Beam Forming, Frequency Reuse, and the Quest for Maximizing Satellite Throughput

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Satellite communication is amazing in so many ways. Start with launching a machine into space and expect it to operate precisely while man...
Friday, February 26, 2016

A Broadband User Average Throughput is 150 kbps, not 25 Mbps

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The following are all clipped excerpts driving the point that a good broadband experience averages only 150 kbps...the contend...
Thursday, February 25, 2016

50-80 Peak Busy Users Contend for the Advertised Rate (Revised)

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Wednesday, February 17, 2016

Secure Networking, Safety Comms, Future of Satellite Voice

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Tuesday, December 8, 2015

VICTS (2Ku) is Mechanically Steered & Other Antenna Characteristics

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Sunday, November 29, 2015

Broadband Communications for Business Aviation - NBAA 2015

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NBAA attendees with an interest in how to connect their airplanes to the Internet and choosing to rest their dogs on the second day in ...
Saturday, October 3, 2015

A Stroll through APEX 2015

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Wireless connectivity with passengers was the mainstream theme at the 2015 APEX exhibition in Portland, Oregon. If not connectivity to passe...
Friday, August 28, 2015

Airplane Mode 2015

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Twitter - Will Ferrell UPDATE 24 Sep - Here is the current issue list: * Should (Wi-Fi, Bluetooth, GPS) stay on when engaging Air...
Tuesday, April 14, 2015

Average Page Load should be less than Five seconds

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Friday, March 13, 2015

Connected Airplane - How did we get here, what's next, and what are the big challenges?

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The Connected Airplane
Saturday, February 28, 2015

Net Neutrality: The end of Inflight Internet, or business as usual?

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How will emerging inflight broadband comply with Net Neutrality?
Tuesday, February 24, 2015

Are spot beams better than wide beams for aviation?

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Are spot beams better?
Saturday, February 21, 2015

Skew Angle and Effective Aperture of an Airborne Antenna

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Skew angle is a difficult concept to grasp, but the effect can be profound. Low-profile antennas installed on the top of an airplane fu...
Tuesday, February 17, 2015

Amazon Prime Air: If you can't beat them?

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photo credit: Amazon How can a UAV safely delivery packages? Are the FAA UAV (unmanned aerial vehicle) (or drone) rules taking too l...
Friday, February 13, 2015

Ka-band Airborne Antenna Figure of Merit (G/T)

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Estimated Receive Performance Circular and Square 24"x24" ESA 30"x6" rectangular horn array
Wednesday, February 11, 2015

Data Link Available

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Ken Simmons, Ed Porisch, Peter Lemme, Mary Nakasone (Sato), Dave Allen QANTAS 747-400 FANS Certification Flight Test June 19, 1995
Tuesday, February 10, 2015

Ku-band Airborne Antenna Figure of Merit (G/T)

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Estimated Receive Performance Circular and Square 30"x30" ESA 34"x7" rectangular horn array
Sunday, February 8, 2015

Postcards from Apollo 15

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Monday, February 2, 2015

Rain Fade

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Tuesday, January 27, 2015

Apollo 1 (Apollo 204) - January 27, 1967

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I happened to tour Launch Complex 34 a few days ago, today being the 48th anniversary of the catastrophe.  While only 8 years old when ...
Friday, January 23, 2015

Ku-band Return Channel Maximum PSD

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Summary for Fixed 30x30 Rectangular and Circular plus Gimbaled 34x7
Tuesday, January 20, 2015

Ka-band Return Channel Maximum PSD

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Summary for Fixed 24"x24" Square and Circular ESA plus Gimbaled 30x6 Horn Array
Monday, January 5, 2015

Return Channel Link Budget

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Monday, December 22, 2014

CPDLC - Connecting 40% of the pilots to 70% of the controllers

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I read this article from Woodrow Bellamy, Avionics Magazine, updating status of CPDLC programs and professing voice congestion was a growing...
Wednesday, December 17, 2014

Forward Channel Downlink Regulations

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Monday, November 24, 2014

Forward Channel Considerations

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Wednesday, November 5, 2014

Transponder Downlink dBW Contours

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Wednesday, October 15, 2014

Link Budget Background, Definitions, and Assumptions

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Friday, October 10, 2014

When "Black and White" is better than a Rainbow

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Flying home from a committee meeting where we discussed miswiring, I look up and find that the no-smoking and seat-belt wiring are revers...
Thursday, October 9, 2014

In-Flight Telemetry

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Is it technically feasible for a flight data acquisition unit parametric feed, normally directed to the crash-survivable digital fli...
Sunday, September 28, 2014

I hate it when my free Internet doesn't work?

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Are people more frustrated and vocal with the experience they pay for?

ACARS needs to embrace modern data links using IP

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If only ACARS could look beyond VHF and L-Band

The popularity of a product is somewhat related to its price, where free is in its own universe

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Norwegian Air, which gives away Internet access that cannot fulfill but a few with unlimited desires, much less everyone's, is in fa...
Wednesday, February 19, 2014

FANS-1 ACARS and Satcom must pass Airplane Equipment Interoperability Test (AEIT) (1995)

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Boeing sold production and retrofit commitments to install and certify FANS-1 functionality without regard to specific ACARS and SATCOM part...

Airplane Personality Module

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I presented opposition to the Airplane Personality Module, for reasons stated in this paper. Airplane Personality Module (1996) The deci...
Tuesday, February 18, 2014

TRANSITIONAL USE OF ARINC SPECIFICATION 622 (1994)

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COMMENTS ON DRAFT REPORT ON ATNP/1 AGENDA ITEM 2: "COMMUNICATION ASPECTS OF INTERFACING APPLICATIONS TO THE ATN (E.G...TRANSITIONAL ...

Inmarsat Satellite Communications (1994)

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Four years after the first satcom on 747-400,  here is a snapshot of the technology, the interfaces, and the applications.