Your detector has never been pointed at a real police gun. Ours have - repeatedly, at known frequencies, from known distances, with the readings written down. Come and find out what yours actually does before the day it matters.
The centrepiece
How police catch your speed
In production
How police catch your speed
About an hour. This slot becomes the player the day it goes up.
The whole subject, start to finish: how Doppler radar actually derives a number, why instant-on changes everything, what a laser gun is really measuring, where the cosine effect helps you and where it does not, and why a detector behaves so differently against one gun than another. It is long because the subject is long, and because most of what is written about it online is wrong.
Everything below is the short version of it. If you would rather have the long version in person, that is what a session is.
A detector that has never faced a real gun is a device that beeps at supermarket doors. Everything that determines whether it earns its place happens in circumstances you cannot reproduce on your commute.
You have never seen instant-on
Unless you have been deliberately targeted by a stationary operator, your detector has probably never had to do the one thing that actually counts.
Reviews are not your car
Mounting position, windscreen coating, tint, dash layout and where the sensors sit all change the result. The review was not filmed in your vehicle.
Settings are usually wrong
Most units ship filtered for quiet rather than for range, and most owners never revisit it. We can show you the difference your own settings make, live.
Bands are not equal
Strong on one Ka frequency, weak on another. You cannot find that out without a gun that transmits at a known frequency.
Laser may be doing nothing
If the sensor is not where the beam lands, your laser alert never fires. That is a placement problem, and it is fixable once you can see it.
You are guessing about range
Everyone believes their detector alerts early. Almost nobody has measured from where. We measure from where.
Radar
What separates a good detector from an expensive one.
Eight things decide whether a radar detector is worth having. All eight are measurable, and none of them appear on the box.
Frequency, and why band alone tells you nothing
Police radar lives in three bands: X around 10.5 GHz, K at 24.150 GHz, and Ka spread across 33.4 to 36.0 GHz. Ka is the one that matters most, and it is not a single frequency - guns sit at different points inside that spread. A detector can be genuinely strong at one Ka frequency and noticeably weaker at another, because its internal sweep does not dwell evenly across the whole band. A spec sheet saying 'Ka band' tells you nothing about which part of Ka it is actually good at. Ours transmit at known frequencies, so we can find out.
Instant-on versus constant-on
A radar left transmitting continuously is broadcasting its presence to everyone within a mile. That is the situation every detector handles well, and it is the situation detector reviews are usually filmed in. Instant-on is the opposite: the gun sits silent until the operator pulls the trigger on one specific vehicle. There is no warning to receive because nothing was transmitting. What your detector does in the fraction of a second after that trigger is the only thing that matters, and it is the hardest thing to test without a real gun.
Response time, and the slow-ramp problem
Some detectors handle a strong signal badly. Hit them point-blank with full-strength Ka and instead of going straight to a full alert they climb through the strength bars over a second or more, as though the signal were distant and approaching. That behaviour is invisible in ordinary driving and catastrophic against instant-on, because the second the detector spends ramping is the second the reading is already taken. We can produce that exact stimulus on demand and show you how your unit responds to it.
Beamwidth and antenna pattern
A radar beam is wide - a broad cone rather than a line - which is why radar illuminates so much and why detectors get any warning at all. But the pattern is not uniform. There is a strong main lobe and weaker side lobes, and the difference between sitting in the main lobe and clipping a side lobe is the difference between a screaming alert and a whisper. Where you are relative to the gun changes the answer completely.
Terrain, and what it does to both of you
Radar reflects off guardrails, signs, cuttings, trucks and wet road. It bends around some things and is stopped dead by others. Crests, curves and treelines can leave a detector silent until a target is well inside range, or light it up from an angle nobody expected. Testing on one flat straight road answers one question about one road. Bring us to the roads you actually drive.
Rear coverage
A single forward antenna cannot see behind you, and a good deal of enforcement happens from behind. A detector with a rear antenna is solving a different problem from one without, and running the two side by side is the clearest way to see it. We do exactly that with our own pair.
False alerts, filtering, and what filtering costs
Modern cars are full of K-band radar - blind spot monitoring, adaptive cruise, collision warning - and there is a lot of it on any road. Detectors filter aggressively so they are not screaming constantly. Filtering is not free: a unit tuned hard enough to ignore the traffic around it can also be slow to react to a real K-band gun. Where your detector sits on that trade is measurable, and worth knowing.
Sensitivity against selectivity
Raw range makes for good marketing and is only half the story. A detector that hears everything at enormous distance and cannot distinguish a gun from a driver assistance system will be muted within a week, and a muted detector is no detector. What you want is the unit that stays quiet until it should not be. That is a judgement you can only make by watching it behave against real equipment.
Why our lineup answers those questions
Three radars, four lasers, all of them the real thing.
Known frequencies, on demand
Our Stalker units transmit Ka at 34.7 GHz and the Golden Eagle covers K and Ka, so we can put a specific, known frequency in front of your detector rather than hoping to stumble across one. If your unit has a weak spot, it turns up here.
A trigger-pull on a silent gun is trivially easy for us to reproduce and effectively impossible for you to arrange on your own. We can do it from a hundred feet or from most of a mile, and we can do it over and over while you watch the display.
Point-blank, for the ramp test
Walking a full-strength signal straight into a detector at close range is the fastest way to expose a slow ramp. It takes seconds and tells you something no review will.
And one that finds police who are not transmitting at all
Every radar detector ever built shares one blind spot: a gun that is switched off emits nothing to detect. Our Sherlock sidesteps that entirely by listening for P25 police radio instead of for radar, which can place a patrol vehicle that has not pulled a trigger yet. It is a different signal answering a different question, and it is the only thing in the case that helps before instant-on rather than after.
Four different lasers, four different scatter signatures
This is the one that surprises people. The TruSpeed S, Pro Laser III, Stalker RLR and Laser Ally do not look the same to a laser detector. Testing against one of them is testing against one of them. We have all four in the case.
Laser
The harder problem, and the honest answer.
Radar is a question of sensitivity and filtering. Laser is a question of geometry, and geometry is much less forgiving.
The beam is tiny, and it is aimed at your plate
A laser gun puts out roughly three feet of spread at a thousand feet. That is nothing like a radar cone - it is a spot, and an operator aims it deliberately, usually at a number plate or a headlight, front or rear, because those return a clean pulse. Your detector's sensor is not where your plate is. If the beam never touches the sensor, a perfectly good laser detector will not make a sound while you are being measured.
There is no advance warning. None.
Radar gives the whole road a warning because it illuminates the whole road. Laser is point to point: it is aimed at one vehicle and only that vehicle can possibly see it. Nobody ahead of you can warn you, and your own detector cannot warn you before the fact, because the first pulse and the measurement are effectively the same event.
Scatter, and why the gun matters more than the detector
What a laser detector actually picks up is scatter - stray light thrown off your bodywork, the plate, the road. How much scatter there is depends far more on the gun than on the detector. Optics, divergence and pulse characteristics vary between models, and some guns are simply dirtier than others. The same detector can look excellent against one unit and useless against another. That is not a fault in the detector. It is the reason testing against a single gun tells you almost nothing, and the reason we bring four.
In practice, the warning usually comes from other drivers
For laser specifically, community reporting - Waze and similar - is often more use than any hardware, because a stationary laser trap gets reported by the people who have already been through it. That is a real part of the picture and we would rather say so than pretend the equipment is the whole answer.
Sensor placement and rear coverage
Laser detection is overwhelmingly a question of where the sensors are, not how good the receiver is. Discrete sensors mounted low, front and rear, catch strikes that a windscreen-mounted unit never sees. Rear-facing laser detection matters for the same reason rear radar does. Some all-in-one detectors are genuinely strong on laser and include a rear sensor - the Valentine One Gen2 has a good reputation here - but placement still dominates.
Say this part out loud: a detector is no defence against laser.
Not a weak defence. Not a partial one. By the time any laser detector alerts, the gun has already taken its reading - the measurement and the first pulse you could possibly detect are the same event. A laser alert is a notification that you have been clocked, not a warning that you are about to be.
Anyone selling you a detector as laser protection is selling you something that does not exist. What laser detection is genuinely good for is knowing a trap is operating so you can behave accordingly for the rest of that road - and, for our purposes, measuring whether your equipment sees anything at all. That is worth knowing. It is just not a shield.
Our own countermeasures
What we bring, and what you get to look at.
We show you ours. Screens, settings, sensor placement, the lot - so you can compare your own against something you have watched behave.
Uniden R8
RADAR
Front and rear antennas - our reference detector
Two antennas, one facing forward and one facing back, which is what lets it tell you the direction an alert is coming from rather than just that one exists. It is the detector we hold everything else up against, and the one that most often picks up a signal first.
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Uniden R8 mounted, screen visible
The display is the whole point of the demonstration - customers want to see what an alert actually looks like.
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R8 display mid-alert, showing band and arrows
A photo of a live alert says more than any description of one.
What it brings to a session
Separate front and rear antennas with directional arrows on the display
X, K and Ka band, with the Ka segments police actually use
GPS position memory, so it learns to ignore the supermarket door you pass every day
Signal strength shown numerically as well as audibly, which matters for ramp-up testing
Uniden R3
RADAR
Single antenna - the realistic comparison
One forward-facing antenna and no rear coverage. We run it alongside the R8 deliberately, because the gap between the two is the clearest demonstration there is of what a rear antenna buys you - and of what a detector cannot tell you when it only looks one way.
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Uniden R3 mounted, screen visible
Needed to sit alongside the R8 in the side-by-side comparison.
What it brings to a session
Single forward antenna, no rear coverage
X, K and Ka band with GPS lockouts
Very close to the R8 on straight-line forward sensitivity
The comparison unit for showing what direction-blindness costs you
Sherlock Police Detector
RADIO
P25 radio detection - finds police who are not transmitting radar at all
This one is not a radar detector, and that is exactly why it is interesting. It listens for the P25 digital radio traffic that patrol vehicles put out, which means it can place a car that has its radar switched off entirely. Every radar detector in existence is blind to a silent gun. This is blind to the gun and finds the vehicle instead.
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Sherlock unit, mounted
Nothing on the site shows this unit yet.
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Sherlock display during an alert
Same as the others - the interface is what customers want to see.
What it brings to a session
Detects P25 digital police radio from patrol vehicles
Works when no radar is transmitting - the case that defeats every radar detector
Gives a reason to slow down before an instant-on trigger is ever pulled
Complements rather than replaces the radar detectors: different signal, different problem
AntiLaser Priority
LASER
Laser detection - detector configuration, not a jammer
Multiple laser sensors mounted front and rear, run purely as a detector. It tells us the instant a laser gun has painted the vehicle, and which sensor saw it - which is exactly how we measure whether a customer's own laser detection is doing anything useful. To be unambiguous: ours is configured as a detector. It does not transmit anything back.
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ALP sensors as installed, front and rear
The sensor placement is the interesting part and cannot be seen from inside the car.
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ALP display unit during a laser strike
Shows which sensor caught the hit - the detail that makes the session worth attending.
What it brings to a session
Discrete sensors front and rear rather than a single windscreen-mounted eye
Catches strikes that a windscreen unit misses entirely when the gun is aimed low at a plate
Reports which sensor was hit, so we can work out where the gun was aimed
Detection only - it does not transmit, and nothing in our lineup jams anything
A session
How it actually goes.
01
We meet at the agreed location
Northlake area is included. Anywhere further and travel is costed before you book - never afterwards.
02
Payment for the opening session
The $20 session fee is settled at the start, before any equipment comes out of the case.
03
You take a radio
You get a handheld radio to borrow and we coordinate over it throughout. That is how the long-range work happens at all - once we are half a mile apart, shouting stops being an option.
04
We work through the tests
Long range, instant-on, point-blank ramp, band by band, laser from each gun in turn. What we prioritise is up to you and we can change tack over the radio at any point.
05
Payment at each hour
$30 per hour, settled hourly as we go rather than as one bill at the end. You can stop at any hour mark.
06
Done
Nice and simple. You keep the findings; we keep nothing you did not agree to.
Price
$20 per session
+ $30 per hour
It is better than getting a speeding ticket, by a long shot. One citation costs you the fine, then the insurance surcharge behind it for years afterwards. An afternoon of finding out what your equipment actually does costs less than the fine alone.
Travel
Northlake area is free. Beyond that, every minute on the road past the first 15 costs $1, one way. We will travel up to 60 minutes out.
You will be told the travel figure when you give us the location, as part of booking - not discovered on the invoice.
We are able to test laser jammers. Using one against police equipment is unlawful, so any jammer testing is conducted on private property with the permission of whoever controls it, never on a public road, and never against equipment operating in an enforcement capacity. We do not sell, fit, supply or recommend jammers, and nothing in our own lineup transmits - our AntiLaser Priority is configured purely as a detector. If you are unsure of your position, ask an attorney rather than us. See the legal page for the full terms.
Detector testing is an informational exercise. Nothing here is advice to exceed a posted limit, and no equipment we test will prevent you being cited for doing so.
Find out what yours actually does.
Bring the detector, bring the car it lives in, and we will point real guns at it until you know.
