View allAll Photos Tagged Compatibility

"Licence compatibility lists: could they compensate proliferation by developing circles of trust?"

 

European Open Source & Free Software Law Event (EOLE) 2009 <www.eolevent.eu>

 

European Parliament, Altiero Spinelli Building, hall 1G3, 2009-12-09

RoundFlash™ magnetic edition 5

Close up of Studio Silk:

This quality yarn has been selected for compatibility with our patterns: use in any pattern where DK weight yarns are specified: Compare our pricing, especially in sweater quantities. The more you buy, the more you SAVE.

 

Each 100% silk skein is plied for durability and hand-dyed in small batches. Silk has a lustrous color sheen that many other fibers lack, and a drape to create truly seductive results. Your finished object will glisten.

 

In addition to a gorgeous and growing color palette including brights and neutrals, we offer Studio Silk in "Natural" un-dyed silk: perfect for the home dyer to work their own color magic.

 

See all our yarns on our website: See our profile for link.

Yet another treat for you from Ebay, each camera body cost no more than £10.00 post and packing extra £3.00. Not bought in the same auction.

 

F60/N60

The new Nikon N55 and existing Canon Rebel 2000 are far superior cameras, at the same or lower price.

 

For instance, the obsolete Nikon N60 has only one focus sensor, has no compatibility with AF-S lenses, no depth-of-field preview and a slow motor drive. The new N65 has five useful AF sensors, works with AF-S lenses, has a 2.5 FPS motor drive and has a useful DOF preview button.

 

The old N60 has a heavy metal chassis and the new N65 is just plastic, however they both feel like throw-away cameras. The old N60 also has a 1/125 flash sync and the new N65 only 1/90, neither is very good.

 

Beware of dealers who are stuck with these obsolete but still new cameras in stock. Run out the door screaming if a dealer tries to unload one of his problems (unsold obsolete N60 cameras) on you.

 

Of course if you already have an N60 don't worry about it; it makes great pictures. The N60 does feel a little sturdier than the N65.

 

F65/N65

It is a great lightweight, inexpensive (about $300 US complete with a swell lens) plastic camera capable of fantastic results. It has the same technology as every other Nikon and gives the same quality images. That's right, if you are new to photography then you may not realize that the images made with this camera will be identical to those made with a $2,000 F5 that weighs a ton and sucks through mountains of batteries.

 

If you have some need to mess with every setting and adjustment you may get frustrated and want the N80 instead, but if it's great results you want and don't care about fiddling with settings then this is the way to go. I've learned that fiddling with settings actually leads to missing many great photos, so I always use the AF and program exposure modes. All the latest Nikon AF and exposure technology is in this camera. You have full manual control and control of most important things with this camera; you just can't always fiddle with the really complex things that no one understands anyway like dynamic autofocus tracking.

 

The only potential drawback is slow flash sync speed, however the N80 isn't much better so don't worry about it unless shooting action with fill flash in daylight is important to you. If this is important you have to go to the F100 or cheaper but obsolete N90s.

 

F75/N75

This is a swell plastic camera originally designed for people who had never used a camera before. If you're more serious by all means go for the slightly more expensive N80 which is more durable. The N75 offers most of the N80's features in a package with the same durability of the cheapest N55.

 

As of 2008, the N75 makes the best film backup camera I can imagine because it weighs nothing and has every feature I might want.

 

The N75 has full flash, VR, AF and AFS compatibility. If you're carrying it as a backup, you don't want any extra weight and you don't expect to need to use it, but you need full system comparability if your main body dies.

 

Kit used: Sony RX 100 III

 

ref: 0275 - 6th Aug 2020

Frontier Europe provides single and twin dispensing options for retail use, built with robust construction, quality design, bio-fuel and ethanol compatibility. Click to view image.

Fog shrouded the hills near the Esrange Space Center in Kiruna, Sweden on the morning of August 10, 2015. This early morning Flight Compatibility Test on the balloon launch pad preceded the successful BARREL balloon launch in clear weather later that afternoon.

 

The NASA-funded BARREL – which stands for Balloon Array for Radiation-belt Relativistic Electron Losses – measures electrons in the atmosphere near the poles. Such electrons rain down into the atmosphere from two giant radiation belts surrounding Earth, called the Van Allen belts. For its third campaign, BARREL is launching six balloons from the Esrange Space Center. BARREL is led by Dartmouth College in Hanover, New Hampshire.

 

Read more: www.nasa.gov/feature/goddard/barrel-team-arrives-in-swede...

 

Credit: NASA/Dartmouth/Kathryn Waychoff

 

NASA image use policy.

 

NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.

 

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Finnish Army Soldiers taking part in Exercise Arctic Sheild: The aim of the exercise was to develop the performance of the ground in arctic conditions, to test the skills of a trained group and to increase compatibility with Swedish soldiers December 2018

 

Photo: Maavoimat - Armén - The Finnish Army

 

Flickr Faves Compatibility Index - The StatBot - Fun stats. Visualizations. Leaderboards.

 

Yuvi Sense, who is doing some of the best statistical analysis with APIs on the internet today, has a new post out on something he is calling the Flickr Faves Compatibility Index -- it's awesome for the stats junkie like me.

 

He got the idea for it from Hutch Carpenter who did a similar project with FriendFeed.

 

Basically Yuvi's Flickr Faves Compatibility Index analyzes all of your faves to show you the top 25 people who have faved the same photos as you have. If you'd like to have your faves analyzed be sure to drop Yuvi a line in the comments on his thread post as it looks like he's willing to do this analysis for others as well.

 

I've also asked Yuvi to look at who the top 100 people are that I've faved photos from their stream and who the top 100 people are who have faved my photos. He is going to work on this as well when he's got some more time.

 

This is interesting analysis that would be great to see included in Flickr's default stats section on their site.

 

By pointing out people on Flickr whose taste is similar to your own, Flickr might better suggest photographers that you'd be interested in following on the site.

 

I favorite *alot* of photos on Flickr. The screenshot above are the most recent 36 shots I've faved on Flickr, but I've faved almost 40,000 photos in the 3 and a half years I've been active on the site. Mostly I'm getting my faves these days from FriendFeed. You can see all of my favorites on Flickr here.

Web compatibility test screens on a T-Mobile Android G1 and an HTC Hero mobile phone.

 

Stop yawning, he wanted it.

Testing one, two and now, three.

 

Radio frequency testing has begun on the first Orion spacecraft that will fly around the Moon for the Artemis 1 mission, just two weeks after thermal and environmental tests were completed at NASA’s Plum Brook Station in Ohio, USA.

 

Electromagnetic compatibility or EMC testing is routine for spacecraft. All electronics emit some form of electromagnetic waves that can cause interference with other devices. Think of the buzz that speakers give out right before an incoming call on a mobile phone.

 

Spacecraft electronics can cause similar interference, but out in space such interference can have disastrous consequences, so all systems must be checked before launch.

 

EMC tests often take place in a special shielded room constructed of metal walls and doors and foamy spikes (aka absorbers) that block out unwanted external electromagnetic radiation, like ESA’s Maxwell chamber at its technical site in the Netherlands.

 

Though not an EMC chamber, Plum Brook’s thermal vacuum chamber is made of aluminium that does provide electromagnetic shielding, making it a suitable substitute.

 

To test electronics, the spacecraft will simulate a flight in realistic conditions with most of its subsystems and equipment powered and in operational mode.

 

The electronics are first tested for compatibility in this electromagnetic shielded chamber. Equipment will be switched on to test whether they do potentially disturb one another.

 

In the second round of tests, electromagnetic fields will be applied using antennas around the spacecraft to test the susceptibility to interference from external sources. The Orion capsule is equipped with electromagnetic field sensors to take measurements as the disturbance frequencies are injected into the chamber.

 

While all subsystems are a potential source of radio frequency noise, of particular interest are the transmitters that intentionally generate radio frequencies. These can easily disturb other equipment sensitive to electromagnetic noise, like GPS receivers, tele-command modules and other communication elements.

 

ESA experts are on site monitoring all tests alongside NASA colleagues as Orion moves closer to its first flight without a crew around the Moon.

 

Find more in depth coverage of all things Orion on the blog.

 

Credits: NASA

Nikkor 50mm f1.4

Maximum Aperture - f/1.4

Aperture Range - f/1.4 - f/16

Classic Nikon F Mount

AIS / AI / NAI Metering Compatibility

SIC - Super Integrated Lens Coating

Etched Aperture Ring

Filter Size - 52mm

Depth-of-Field / Focus Distance Scales

Knurled Rubber Focusing Ring

Hi Spookies & Culties, Here is your "must have these Cult Items" Weekend Shopping List!!

 

★ Item ★ The Drifter sandals with socks are a great addition to any wardrobe!

 

★ Rigged For ★ Legacy Male ★ Jake ★ Gianni ★ Kario Flex ★

★ Remember to always try the DEMOS!★Check for Body Type & Body MOD Compatibility★

★ Comes with a Color Control HUD for changeable color options

 

★ Cult LM ★ maps.secondlife.com/secondlife/Cult%20Coven/129/75/33

 

★ Cult's Social Media Links ★

Cult Discord

Cult Mainstore

Cult PrimFeed

Cult Facebook

Cult Flickr

Cult Flickr Group

Cult Social Card

★ Rigged For ★ Legacy Male ★ Jake ★ Gianni ★ Kario Flex ★

★ Remember to always try the DEMOS!★Check for Body Type & Body MOD Compatibility★

★ Comes with a Color Control HUD for changeable color options

 

★ Cult LM ★ maps.secondlife.com/secondlife/Cult%20Coven/129/75/33

 

★ Cult's Social Media Links ★

Cult Discord

Cult Mainstore

Cult PrimFeed

Cult Facebook

Cult Flickr

Cult Flickr Group

Cult Social Card

This Dot.Foto rapid battery charger is designed to simply and safely charge your SJ4000 action camera battery. It comes with UK, European and US mains plugs allowing it be used at home or overseas and the car cable even allows you to use the charger on th

Product Features

Charger for: SJ4000

www.carcamerareviews.co.uk/in-car-cameras/dot-foto-sjcam-...

anastasiy.com/colorwheel

New updates bring compatibility with Adobe Creative Cloud and especially Photoshop CC 2014. MagicPicker is getting better all the time! New version - MagicPicker Lite - is our special version of MagicPicker for the newest CC 2014 software. In the current version we support:

- Photoshop and Illustrator

- color box and triangle on color wheel

- RGB/HSB sliders

- HSB/RGB/CMYK and HEX numerical boxes

- default colors/link colors buttons

- all features of the full version are on the way!

 

 

Hello!

This is the compatibility information for Volks and Dollits. !! ^^

 

Neck circumference seems to be similar.

 

The circumference of the DKD girl's body's neck is 6.95cm.

Volks' Pure MSD boys seem to have a good connection with the head.

 

But ... the head looks too big .. ㅠ

 

It's a big face because it's a doll that was released a long time ago.

Recently Volks msd boy's head has become smaller.

 

On the contrary, the face looks small when you combine Volks body + Dollits DKD girl heads.

But it looks good when I wear clothes. ^^

 

[Dollits DKD girl Body] + [Volks MSD head] I wonder what it would look like when it wore clothes

 

The Volks Doll has been around for a long time. So the skin color comparison is meaningless.

 

And Dollits DKD Girl Body is before pelvic joint correction.

 

✨ Elevate your roleplay. Personalize every detail.

If you're looking for a premium mesh enhancement that combines realism, customization, and seamless compatibility, [Good Moaning] Live Pussy - LaraX is a must-have for your inventory.

Its intuitive HUD, extensive customization options, and smooth integration with Maitreya LaraX make it one of the most complete avatar enhancements available for immersive adult roleplay.

 

──··· FEATURES

Discover what both creators have to offer and take your Second Life roleplay experience to the next level.

✨ Easy setup for Maitreya LaraX

✨ Automatic BOM skin matching

✨ Material synchronization

✨ Intuitive customization HUD

✨ Outfit-friendly styling options

✨ INM Sync compatibility

✨ Interactive systems integration

✨ Smart PG Auto-Hide support

 

★ Item ★ Crawl are a cute pair of unisex spider slippers for all the comfie seekers!

 

★ Rigged For ★ Reborn ★ Legacy Female ★ Maitreya ★ Kupra ★ Gen-X ★

★ Rigged For ★ Legacy Male ★ Gianni ★ Jake ★ Unrigged ★

★ Remember to always try the DEMOS!★Check for Body Type & Body MOD Compatibility★

★ Comes with a Color Control HUD for changeable color options

 

★ Cult LM ★ maps.secondlife.com/secondlife/Champ/189/200/17

 

★ Cult's Social Media Links ★

Cult Discord

Cult Mainstore

Cult Instagram

Cult Facebook

Cult Flickr

Cult Flickr Group

Cult Social Card

Spc. Brandon Reese, a command post node team chief with the 72nd Expeditionary Signal Bn., coordinates with a Ukrainian soldier to test the video teleconference system to ensure compatibility and reliability during exercise Combined Endeavor 2011.

More compatibility fun :)

 

I'm also glad i got Rei for Christmas, since i wanted another Cu-poche. :)

Celebrating the arrival of spring here in town, I decided to do this project. I used a branded purse which had some colors matching with spring blossoms. The inspiration came from my frequent looking at fashion magazines. It was cloudy which offered white soft light. But the rain was challenging as it left some of my equipment wet. It took me about three hours for both setup and shooting. Finding a good looking tree was my first barrier. I stopped by the engineering campus at my university, it has more open areas compare to the main and medical campuses.

 

NOTE: The photos shown on this clip didn't undergo any Photoshop.

 

If you are interested to watch higher quality version:

download.yousendit.com/WnBSSXQ5Q1JtNElLSkE9PQ

 

TECH:

Canon EOS 30D

Canon EF 70-200mm f/2.8L

Speedlite 450EX and small umbrella.

Manfrotto tripod.

RAW file edited in Lightroom, Photoshop & Aperture.

Camcorder: Canon HV30 (HD).

 

Evansdale Campus at West Virginia University.

Morgantown, West Virginia.

Spring 2009.

LOS ANGELES, CA - SEPTEMBER 16: TV Personality Ellen DeGeneres and Actress Portia de Rossi arrives at the 59th Annual Primetime Emmy Awards at the Shrine Auditorium on September 16, 2007 in Los Angeles, California. (Photo by Steve Granitz/WireImage)

In South Africa - this morning! Canon unveils EOS M mirrorless: 18 MP APS-C, EF compatibility

I decided to test the well-known compatibility of Duplo with System.

 

Follow me on Instagram and my website

This is the other end of set no 26 at Golders Green. The driver has switched out the single tungsten 'headlight' and switched on the tail light (has the left-hand one failed?) but has not changed the destination plate. As this was taken in the evening I suspect this set's next move will be to the adjacent depot.

 

This unit, with a rather battered-looking cab front, was last overhauled in October 1970 by the look of it. Note the unit end is labelled as 'A'. The one at the other end is labelled 'D'. This is a reflection of coupling compatibility: you could only couple an 'A end' car to a 'D end' one.

Preparing Hera’s High Gain Antenna for electromagnetic compatibility testing in ESA’s Maxwell chamber, during its pre-flight test campaign at ESA’s Test Centre in Noordwijk, the Netherlands.

 

Hera is ESA’s first mission for planetary defence. Due for launch in October 2024, Hera will fly to the Didymos binary asteroid system in deep space to perform a close-up survey of the Dimorphos moonlet in orbit around the primary body. The Great-Pyramid-sized Dimorphos is already historic, as the first Solar System object to have its orbit changed by human activity, by the 2022 impact of NASA’s DART mission.

 

Hera is intended to gather crucial missing data about Dimorphos for scientists, to turn DART’s grand-scale experiment into a well-understood and potentially repeatable planetary defence technique. To increase its yield of data, Hera carries with it ESA’s first deep space CubeSats, carrying additional instruments and planned to fly closer to the asteroid’s surface than the main spacecraft, before eventually landing.

 

Part of Hera’s testing was documented for the spacecraft team by photographer Max Alexander, who specialises in science communication through photography.

 

Credits: Max Alexander/ESA

 

OiOS Desktop

Imagine a UNIX based Enterprise Operating System, a scalable universally collaborative stable business platform capable of running on Sparc or x86 Systems. Delivering support for Cloud enterprise features, ZFS file systems, Virtualisation, Advanced Security, and Compatibility. Enabling you to build new possibilities, enter new markets and harness human relationships in Open Source across the world. Whether you are a Systems Administrator, Recreational User or Information Technology Professional, OiOS supports the new economics of highly creative, diversified ways of doing business, and building networks.

 

OiOS Server

Imagine a UNIX based Enterprise Operating System, a scalable universally collaborative stable business platform capable of running on Sparc or x86 Systems. Delivering support for Cloud enterprise features, ZFS file systems, Virtualisation, Advanced Security, and Compatibility. Enabling you to build new possibilities, enter new markets and harness human relationships in Open Source across the world. Whether you are a Systems Administrator, Business, or Information Technology Professional, OiOS supports the new economics of highly creative, diversified ways of doing business, and building networks.

 

OiOS 151a8 Increased migration by world exchanges financial exchanges to Unix and Linux opens development to stock trading platform giving more opportunities to run software on more stable Unix platforms

Free open source enterprise systems available on live DVD or USB stick

Professionals Join in @

- Openindiana.org

- #openindiana on irc.freenode.net

- www.facebook.com/openindiana?ref=ts&fref=ts

 

Finnish Army Soldiers taking part in Exercise Arctic Sheild: The aim of the exercise was to develop the performance of the ground in arctic conditions, to test the skills of a trained group and to increase compatibility with Swedish soldiers December 2018

 

Photo: Maavoimat - Armén - The Finnish Army

 

Finnish Army Soldiers taking part in Exercise Arctic Sheild: The aim of the exercise was to develop the performance of the ground in arctic conditions, to test the skills of a trained group and to increase compatibility with Swedish soldiers December 2018

 

Photo: Maavoimat - Armén - The Finnish Army

 

Bangladeshi commandos prepare to jump from a U.S. Air Force C-130H aircraft during Exercise COPE SOUTH near Sylhet, Bangladesh, Jan. 24, 2015. COPE SOUTH helps cultivate common bonds, foster goodwill, and improve readiness and compatibility between members of the Bangladesh and U.S. Air Forces. (U.S. Air Force photo by 1st Lt. Jake Bailey/Released)

Testing one, two and now, three.

 

Radio frequency testing has begun on the first Orion spacecraft that will fly around the Moon for the Artemis 1 mission, just two weeks after thermal and environmental tests were completed at NASA’s Plum Brook Station in Ohio, USA.

 

Electromagnetic compatibility or EMC testing is routine for spacecraft. All electronics emit some form of electromagnetic waves that can cause interference with other devices. Think of the buzz that speakers give out right before an incoming call on a mobile phone.

 

Spacecraft electronics can cause similar interference, but out in space such interference can have disastrous consequences, so all systems must be checked before launch.

 

EMC tests often take place in a special shielded room constructed of metal walls and doors and foamy spikes (aka absorbers) that block out unwanted external electromagnetic radiation, like ESA’s Maxwell chamber at its technical site in the Netherlands.

 

Though not an EMC chamber, Plum Brook’s thermal vacuum chamber is made of aluminium that does provide electromagnetic shielding, making it a suitable substitute.

 

To test electronics, the spacecraft will simulate a flight in realistic conditions with most of its subsystems and equipment powered and in operational mode.

 

The electronics are first tested for compatibility in this electromagnetic shielded chamber. Equipment will be switched on to test whether they do potentially disturb one another.

 

In the second round of tests, electromagnetic fields will be applied using antennas around the spacecraft to test the susceptibility to interference from external sources. The Orion capsule is equipped with electromagnetic field sensors to take measurements as the disturbance frequencies are injected into the chamber.

 

While all subsystems are a potential source of radio frequency noise, of particular interest are the transmitters that intentionally generate radio frequencies. These can easily disturb other equipment sensitive to electromagnetic noise, like GPS receivers, tele-command modules and other communication elements.

 

ESA experts are on site monitoring all tests alongside NASA colleagues as Orion moves closer to its first flight without a crew around the Moon.

 

Find more in depth coverage of all things Orion on the blog.

 

Credits: NASA

I am trying to get some of my 35mm work scanned but there are compatibility issues with my scanner so it's going to be next week before they're up. Meanwhile, here's an image I took whilst trying to sort the issue, with a contradiction between the fist meaning evil and the white glove symbolising purity.

Finnish Army Soldiers taking part in Exercise Arctic Sheild: The aim of the exercise was to develop the performance of the ground in arctic conditions, to test the skills of a trained group and to increase compatibility with Swedish soldiers December 2018

 

Photo: Maavoimat - Armén - The Finnish Army

 

The Lenovo A30 Internet TV set top box is poweredf by the VIA Nano platform, providing powerful processing performance and full compatibility with mainstream video and audio formats.

washington square park, nyc

 

From the Apr 22 New York Times "As her team begins compiling a list, Hillary Clinton is said to care less about ideological and personal compatibility than about picking a winner."

ATLANTIC OCEAN (Jan. 24, 2020) Hospital Corpsman 2nd Class Chantelle Ponder, from Valdosta, Georgia, assigned to USS Gerald R. Ford's (CVN 78) medical department, checks the heart rate of a patient in one of the ship's medical examination rooms. Ford is currently underway conducting aircraft compatibility testing. (U.S. Navy photo by Mass Communication Specialist Seaman Zack Guth)

My normal workday takes place right here! This is a fully Windows Vista set-up and stability is rock solid and compatibility is pretty good.

26cm tiny girl's body (YoSD-class)

 

Sell on Etsy :

www.etsy.com/listing/204579127

 

[Color compatibility]

Skin tone is similar to Volks' dolls, closer to [yellow tone].

It is not Pureskin material; we use very stable, high quality resin.

  

[Size info]

This body is compatible with Yo-SD size of Volks.

Height 26.5 cm / Head size 6.4 inch / Eyes 14~16 mm

 

26.5cm is the total height from head to toe, just like a human height.

  

*Models in the image :

OCEANMOON [Lin] type

www.etsy.com/listing/173790740

 

*More images [Lin] :

goo.gl/RPiW9h

  

#구체관절 #구관 #인형 #ドール #doll #dolls #toy #BJD #ABJD #cute #tiny #Etsy #art #oceanmoonBJD

 

***

www.etsy.com/shop/oceanmoonBJD

 

twitter.com/oceanmoondoll (Korean & Japanese)

twitter.com/oceanmoonBJD (English)

 

www.facebook.com/oceanmoon

 

oceanmoon.net

oceanmoondoll@gmail.com

1984 + 2006 = ?

"dvi to video adapter" is the best apple product, real backwards compatibility!

2nd Lt. John Tidwell, platoon leader with the 72nd Expeditionary Signal Bn., coordinates with a Ukrainian soldier to test the video teleconference system to ensure compatibility and reliability during exercise Combined Endeavor 2011.

*NEWNESS*

ZENOUS BODYSUIT

════════════════════

☰ Items Included:

⋮ Color Hud

⋮ 12 colors

☰ Compatibility with:

☑ Maitreya ☑ Belleza ☑ Slink ☑ Ebody Curvy ☑ Tonic

 

MP marketplace.secondlife.com/p/CB-ZENOUS-BODYSUIT-WEAR/1751...

INWORLD

The BAE Systems - Navistar - Arvin Meritor Australian Joint Light Tactical Vehicle (JLTV) is right-hand drive configured to meet the needs of Australian forces while maintaining high levels of compatibility with the U.S. version.

F-16 models are denoted by increasing block numbers to denote upgrades. The blocks cover both single- and two-seat versions. A variety of software, hardware, systems, weapons compatibility, and structural enhancements have been instituted over the years to gradually upgrade production models and retrofit delivered aircraft.

 

While many F-16s were produced according to these block designs, there have been many other variants with significant changes, usually due to modification programs. Other changes have resulted in role-specialization, such as the close air support and reconnaissance variants. Several models were also developed to test new technology. The F-16 design also inspired the design of other aircraft, which are considered derivatives. Older F-16s are to be converted into drone targets.[83]

 

F-16A/B

The F-16A (single seat) and F-16B (two seat) were initial production variants. These variants include the Block 1, 5, 10 and 20 versions. Block 15 was the first major change to the F-16 with larger horizontal stabilizers. It is the most numerous F-16 variant with 475 produced.[84]

 

An Israeli F-16I (Block 52) at Red Flag July 2009

 

F-16C/D

The F-16C (single seat) and F-16D (two seat) variants entered production in 1984. The first C/D version was the Block 25 with improved cockpit avionics and radar which added all-weather capability with beyond-visual-range (BVR) AIM-7 and AIM-120 air-air missiles. Block 30/32, 40/42, and 50/52 were later C/D versions.[85] The F-16C/D had a unit cost of US$18.8 million (1998).[1]

Testing one, two and now, three.

 

Radio frequency testing has begun on the first Orion spacecraft that will fly around the Moon for the Artemis 1 mission, just two weeks after thermal and environmental tests were completed at NASA’s Plum Brook Station in Ohio, USA.

 

Electromagnetic compatibility or EMC testing is routine for spacecraft. All electronics emit some form of electromagnetic waves that can cause interference with other devices. Think of the buzz that speakers give out right before an incoming call on a mobile phone.

 

Spacecraft electronics can cause similar interference, but out in space such interference can have disastrous consequences, so all systems must be checked before launch.

 

EMC tests often take place in a special shielded room constructed of metal walls and doors and foamy spikes (aka absorbers) that block out unwanted external electromagnetic radiation, like ESA’s Maxwell chamber at its technical site in the Netherlands.

 

Though not an EMC chamber, Plum Brook’s thermal vacuum chamber is made of aluminium that does provide electromagnetic shielding, making it a suitable substitute.

 

To test electronics, the spacecraft will simulate a flight in realistic conditions with most of its subsystems and equipment powered and in operational mode.

 

The electronics are first tested for compatibility in this electromagnetic shielded chamber. Equipment will be switched on to test whether they do potentially disturb one another.

 

In the second round of tests, electromagnetic fields will be applied using antennas around the spacecraft to test the susceptibility to interference from external sources. The Orion capsule is equipped with electromagnetic field sensors to take measurements as the disturbance frequencies are injected into the chamber.

 

While all subsystems are a potential source of radio frequency noise, of particular interest are the transmitters that intentionally generate radio frequencies. These can easily disturb other equipment sensitive to electromagnetic noise, like GPS receivers, tele-command modules and other communication elements.

 

ESA experts are on site monitoring all tests alongside NASA colleagues as Orion moves closer to its first flight without a crew around the Moon.

 

Find more in depth coverage of all things Orion on the blog.

 

Credits: NASA

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