NexTek is proud to announce the release of a new line of standard products, engineered specifically to protect Coaxial RF lines and systems against Lightning Damage as required to meet DO-160G, Section 22.
Available in a variety of pass bands, packages, and with multiple connector options; these designs are based on years of experience providing solutions to the Aerospace and Avionics sectors. When compact size and light weight are critical, but effective and serviceable/replaceable protection is required; The FPD series of lightning protection devices can meet all of these performance points, in a highly reliable and robust package.
D0-160G, Section 22 – All Waveforms and Test Levels
MIL-STD 461G, CS 117 – All Waveforms and Test Levels
Connectors – Type N, TNC, SMA, 2.92mm, MCX, MMCX, and others available
DC Power – DC Pass or DC Short/Block Options available
Frequency – Pass Bands between DC and 18GHz available, across the entire range of designs (not within a single design.)
Even here at NexTek, where we deal with Lightning and Lightning Protection each and every day, we know that there is still a lot to learn about how, why, and where it occurs. While we can track Lightning Activity in real-time around the world (See HERE for an older post on the topic!) and we know about what atmospheric conditions are required to allow a Thunderstorm to form; even experts still do not know why a Lightning Strike “lands” exactly where it does, or all of the factors involved in determining the severity of a Thunderstorm or its’ Lighting activity levels.
Along these lines, we are always interested in seeing new research and learning more about the natural phenomenon that is Lightning. One recent research paper has identified a clear correlation between busy International Shipping Routes and Thunderstorm/Lighting activity levels!
Global Lightning Activity Data
We have long been able to track Lighting Activity with satellites, and use that data to form a Global Lightning Activity level map. See below for a map generated by NASA using data from their satellites in the ’90s and early ’00s, and is colored to show relative hot-spots and cold-spots over a multiple-year time frame.
Shipping Routes vs Local Lightning Activity
By using more recent Lighting tracking technologies with improved location tracking ability, small variations in Lightning Activity levels in a small area of the world can be identified more clearly. As you can see from the lighting activity map below, there is a very interesting and “unnatural” looking pattern forming between Malaysia and Indonesia that extends with relatively straight lines from either side of this channel (the Malacca Strait.)
When Shipping Emissions patterns for the year 2010 are laid next to the Lightning Map, it does not take long to realize that this corridor of increased strike activity lays exactly over the Shipping Lane that passes through the Malacca Strait. This shipping route is among the busiest, if not the busiest, in the world and ship traffic and therefore ship emissions are elevated in this area at all times.
What Is The Connection?
This paper’s authors make a few guesses as to what the cause of this observed correlation may be, but the most likely factor seems to be the Particulate Emissions emitted by Shipping Vessels on highly-trafficked routes. While the researchers behind this particular study are not exactly sure what connects the two, there are a couple of reasonable hypotheses out there;
The particulate matter in the exhaust of ships provides a form of “cloud-seeding” which increases cloud formation, rain formation, and therefore increased thunderstorm activity
This is similar in a sense to jets forming con-trails, where the particulate matter in the exhaust provides something for water to condense on…forming clouds where there were none.
Perhaps there is an increase in lightning energy or atmospheric charge buildup due to additional particles in the air creating more friction (as experts believe happens during volcanic eruptions)
Ship exhaust could even be driving an increase the local temperatures and that promotes Thunderstorm creation, or plays some other part that we may not have identified yet.
There is plenty of research still left to do, and much that we will probably never fully understand…But the correlation presented here is striking!
We are proud to announce that we are releasing two new “D Series” Fine Protection (FPL Series) devices for protecting GPS and other Global Navigation Band Receivers.
These products will completely replace the existing “B Series” Fine Protection Devices for GPS applications, the FPLNFNFBxxx and FPLTFTFBxxx units, in the near future. Form, Fit, and Function details remain the same between the existing and new devices in order to allow for a simple and painless transition for existing users.
The Type N version is available now, and the TNC version will be available later in 2018;
Click the Product Photos below to learn more about each device
Have you been wondering how to select the correct surge protection for your Coaxial RF application? This newly-released Selection Guide is a handy tool which will help walk you through the selection process and end up with the best standard solution for your needs.
This include a review of our major product lines, a list of primary selection criteria that are important to know before making a decision, and some additional charts and information to help simplify the process.
Click through below to find the new RF Arrestor Selection Guide and start the process!
Here at NexTek we have been ITAR-registered with the Department of State and their Directorate of Defense Trade Controls [DDTC] for well over 15 years. This means that we are fully compliant with Export Regulations and able to apply for licenses to export information or products as warranted.
We are proud to employ a dynamic team of U.S. Citizens, and we take security seriously for every project and solution we get involved with. Starting as an EMC consultation company over 30 years ago, our company and team of experts have been providing Surge Protection and EMI/RFI solutions into the Military and Government space from the very beginning.
Whether or not you need something special or that might be ITAR restricted, you should be able to feel confident that we have the experience, expertise, and knowledge to deal with any set of requirements that might come along.
Once again, we are excited to be able to announce a new local sales representation partnership… This time providing full technical sales coverage in the Pacific Northwest states of Washington, Oregon, and Idaho.
Learn more about Lionheart by visiting their website here (click the logo below!)
Although probably our best-known type of solution, we wanted to take the opportunity to start off 2017 by highlighting Lightning Protection for coaxial RF applications. Fundamentally, the purpose of these devices is to provide high-performance Lightning & Surge Protection for Radio and Electronic Systems and their Users. This can be as simple as protecting a radio itself, or as complex as providing protection to the entire platform or system the protection is being installed upon.
You can see the common areas where protection is installed called out as A, B, and C in the diagram above. This is an over-simplification and does not exactly represent most actual installations, but it does a good job representing the various ways and reasons that a coaxial cable can be installed outside and therefore represent a potential ingress path for Transient Lightning Energy.
Lightning damage is a leading cause of radio damage in many locations and systems around the world. Anywhere a coaxial cable or radio antenna is run outside in an exposed location, there is a potential need for an arrestor/protector on the line as well.
While we do specialize in coaxial connectorized solutions where RF Energy must be passed during normal usage, we also do have many years of experience in designing and consulting on all sorts of Surge Protection devices… From Lightning Arrestors for AC, DC, or Serial/Comms lines, to providing multi-faceted protection that is as effective against Static/ESD and HEMP/NEMP energy as it is against standard Lightning transients.
As with most technologies, RF and Wireless system design is an ever-changing and shifting world. As certain technologies or RF bands become popular, others fade away.
However, the one ever-present force on the industry is the steady, but relentless, push towards smaller size and better integration over time.
Lightning/Surge Protection at the PCB Level?
Here at NexTek we understand the desire to bring things into the box, or even all the way onto the Radio PCB… However, we also know that Lightning Transients contain too much energy to deal with safely at the PCB Level… Trace widths, ground place areas, and the components themselves all become limiting factors that will prevent complete and effective protection.
Given this reality, the last place where it is reasonable and safe to protect against Lightning or other Surge events is at the radio’s box or chassis level. By replacing the normal I/O connector with a protected version, designer can ensure that they have high-performance protection without paying any significant size or weight penalty. As long as the radio’s chassis is grounded well, the bulk of the Transient Energy will be drained safely to ground before entering the box and/or the PCB itself.
It may still be advisable to install some simple protection on the PCB, but only for final clean-up…Something like a small Protection Diode coupled with a DC Blocking Capacitor (if possible for your application) would provide plenty of protection against any residual energy that gets past the Protected I/O Connector.
Maximum Protection in the Minimum Amount of Space
Below, you can see an array of our Ultra-Compact protection options… They all include high-performance lightning protection, and are available in a wide variety of connector configurations on both the Input and Output side.
Outside Connector Options – Type N, TNC, SMA
Inside Connector Options – SMA, MMCX, RG188, RG316, and more!
We are happy to announce the recent release of a brand-new two-page bulletin and brochure, featuring our range of compact high-performance arrestors. Whether you are working on a new design, or trying to retrofit something onto an existing one…these ultra-small options are ideal for any application where size is a critical design factor.
Instead of trying to add some (likely inadequate) transient protection on-board, or having to go all the way to a traditional external arrestor mounted somewhere on the cable run…It is now possible to integrate world-class protection against Lightning, Static (ESD) or High-Speed EMP into a bulkhead connector that will easily replace most existing I/O feedthrus!
With the wide array of connector options and frequency ranges available, you should be able to find a solution for any application. Learn more and download the new Product Bulletin by following the jump below;