Tempest in a teapot—what can SKARAB reveal for you?

Finding the Center of the Galaxy

Summer in the northern hemisphere is a great time to view the constellation Sagittarius by looking south and left...

Busting Watson Watt DF ambiguity - maths edition

A previous blog post introduced the hybrid loop-Adcock antenna, which, in a crossed configuration, is excellent for Watson Watt (WW) radio...

Mashup of classic DF antennas - 1000X better!?

Early Direction Finding Innovation

One early Direction Finding (DF) antenna innovation that stands the test of time is delineated in Frank...

The key to RPAS, UAS and drone detection

Drones are all the rage. These amazing machines offer fun capabilities like aerial photography and videography—even racing! However, they can...

So how do you measure J/S anyway?

It is surprisingly simple to measure jamming (J) to signal (S) ratio, once you get your head around the implications of the J/S equation.  Ends...

How much J/S do you REALLY need?

Electronic warfare is making the news a lot lately. Not only do our adversaries employ, or seek to employ, sophisticated capabilities, the US ...

Rubber beats steel...for manpack antennas, anyway

Manpack antennas that lack flexible connections to electronics housings are destined for short lifetimes. There are a few options for adding the...

How much DF sensitivity do you REALLY need?

When evaluating relative merits of a direction finding system, most folks focus on 'accuracy,' which is generally a measure of the quality of the

How much antenna gain do you REALLY need?

Customers often ask us to help select antennas to assure sufficient range of their wireless communication systems.   Providing an answer, though...

How much DF accuracy do you REALLY need?

Let's take a look at the practice of radio direction finding, and the levels of accuracy needed for different DF applications. 

Radio Direction...

DF Calibration on the Veld

Obtaining excellent performance from a complex electromagnetic device like a correlative interferometric direction finding antenna system is...

Decoding DF accuracy specs - a primer

Direction Finding Antenna Performance

Direction finding antennas are complex devices, so it is surprising that some people try to boil their...

VSWR :: Return Loss and all that

Originally Published 5/28/2011

When introduced to return loss in the context of antenna impedance matching, my first thought was 'the RF gurus...

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