A.H. Systems recently sponsored an EMC Live webinar on selecting antennas for today’s test requirements in which I introduced a simplified method of establishing the amplifier power required by an above 1GHz RF immunity system. Existing methods, such as slotting numbers into a spreadsheet, do not provide the necessary visualization of the test system behavior, and provide … [Read more...]
Spectrum Supportability Risk Assessment – A Last Word….For Now….
Hopefully as you’ve been following along our SSRA related posts, you realize that Spectrum Supportability is not something that can be assumed; spectrum demand is increasing and available spectrum is decreasing. The requirement to perform and submit SSRAs is part of the DoD effort to ensure that we don’t continue to field systems with spectrum use issues and/or interference … [Read more...]
A Show Report on the 2015 Santa Clara Symposium on EMC & SI
Whenever I missed an EMC show I always wished there was some sort of report I could read to get a feel for some of what I missed. To that end, here is one on Santa Clara. I have tried to make it informative and fun for non-attendees and attendees alike.This is a major event with a lot of presentations happening in parallel, and I could only attend a short time, so I apologize … [Read more...]
Spectrum Supportability Risk Assessments – Where’s the Beef?
Ideally, an initial spectrum supportability risk assessment is generated in the first phase of the DoD acquisition process. Early identification of spectrum and EMC related regulatory and technical issues allows program management personnel to focus attention and resources on critical spectrum issues in the remaining acquisition phases. The SSRA’s author uses inputs from … [Read more...]
Spectrum Supportability Risk Assessments (continued)…
Just One More Thing on the List!Available expertise and the existence of service Spectrum and E3 related organizations notwithstanding, it is widely known in the DoD Spectrum Management community that program offices, for a variety of reasons, including a lack of understanding of the requirements and their importance, frequently avoid spectrum supportability considerations … [Read more...]
Feedback on the Central Texas EMC Chapter Event and the Upcoming Santa Clara Show
The Central Texas PresentationThe potential audience stayed away in droves with the result that the number attending the presentation was disappointing. This seems strange when you consider the Central Texas Chapter capture area has two major EMC chamber manufacturers, and that previous presentations I have given attracted a big audience. A lot of pizza was taken home – but … [Read more...]
SSRA Components
As we noted, the purpose of the spectrum supportability risk assessment is to identify and assess regulatory, technical, and operational spectrum issues with the potential to affect the required operational performance of the candidate system. For example, in addition to determining that a system’s bandwidth requirement complies with an individual nation’s frequency allocation … [Read more...]
The Diagnosis of Under-Performing Semi-Anechoic Chamber Designs #2, and a Report on the Joint Dallas EMC Chapter/Northwest EMC Event
I apologize for the prolonged absence, my career has taken a new path and the preparation for this took up all my spare time. Things are freeing up once more, so I am glad to say I can now return slowly to blog writing.I actually made the time recently to attend a technical presentation on obtaining wireless device approvals, jointly hosted by the Dallas IEEE EMC Chapter and … [Read more...]
SSRA’s Continued…Background on Spectrum Management
To understand Spectrum Supportability Risk Assessments, we need a little background. In the DoD acquisition process, spectrum management usually begins with equipment spectrum certification, a process whereby a system is approved to operate in a particular spectral band. To actually operate the system, spectrum certification must be followed by obtaining specifically assigned … [Read more...]
Spectrum Supportability Risk Assessments (SSRA) – A Review
The first in a series of discussions on a DoD acquisition requirementEarly consideration of spectrum supportability in spectrum dependent (S-D) system acquisitions is a fundamental criterion that must be satisfied before the DoD develops and fields communications-electronics (CE) equipment and related weapons systems. Development or acquisition of systems that meet operational … [Read more...]
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