Decatur Electronics: History, Ownership, Radar

By I Go Cars · Updated October 29, 2026

Decatur Electronics at a glance

Decatur Electronics is a manufacturer of police traffic radar, speed signs and trailers, and non-police radar for sports and water-flow measurement. It was founded in 1955 in Decatur, Illinois, and is now headquartered in Escondido, California. Since December 2022 it has operated as Decatur Electronics, LLC, after its managing partners bought the business from D&K Engineering, Inc. of San Diego. Its radar models appear on the National Highway Traffic Safety Administration (NHTSA) conforming product list (CPL), the federal list of speed-measuring devices eligible for purchase with federal highway safety grant funds.

This profile records official listings and the company's own statements. It does not rate Decatur or its equipment, and it makes no comparison of quality with other makers.

Current name: Decatur Electronics, LLC
Founded: 1955, Decatur, Illinois (company statement)
Headquarters: 920 S. Andreasen Drive, Suite 103, Escondido, California
Ownership: managing partners, since a December 2022 purchase from D&K Engineering
Enforcement products: K-band and Ka-band radar; resold DragonEye lidar

Origins: Muniquip and Bryce Brown

The company's published history credits its start to one person. "In 1955, Bryce Brown, a university professor with experience working on the Manhattan Project, started Muniquip (short for Municipal Equipment)," the company writes. Brown first made speed timers that used hoses laid across the road, and, in the company's words, "soon began manufacturing the first law enforcement radar."

The account continues: "In 1964, Brown left Millikin University." A Toronto firm bought his other product lines and the company name "two years later," and "Brown kept the radar portion, and renamed the company Decatur Electronics, Inc." The post implies the rename took place around 1966 but does not state a year.

Decatur's claim to have been first deserves context. A 2020 trade profile quoted the company as "the first company to manufacture a speed radar for law enforcement in the United States." That is a manufacturer claim. The federal record states only that radar has been used to detect speeding motorists in the United States "since the late 1940s," in a NHTSA notice published in the Federal Register in November 2024, and NHTSA's operator training manual gives 1947 as the year law enforcement began using radar. Both dates precede Muniquip's 1955 founding, and neither federal source names a manufacturer.

One further detail on the CPL is an observation rather than an established fact. The list's historical section names "Tribar Industries" as the maker of radars called "Muni Quip KGP" and "Muni Quip MDR." The shared name is evident, but no source located states the relationship between Tribar Industries, those models and Brown's Muniquip.

Ownership and the move to California

Decatur left Illinois through a change of ownership. A 2020 sponsored profile in the trade publication Police1 reported that Decatur had merged in 2018 with its parent, D&K Engineering of San Diego, and described the company as based in San Diego. That merger is documented only by the trade source.

In December 2022 the company announced that "The Managing Partners of Decatur Electronics LLC, are pleased to announce the acquisition of Decatur Electronics, Inc from D&K Engineering, Inc., of San Diego, California." Dale Visneskie became chief executive officer and William Janes chief operating officer. The release was datelined San Diego. The company's current published address is in Escondido, California.

A common error follows from the name. Decatur Electronics is not in Decatur, Illinois. It was founded there and kept the name after the business moved west. The company also states a "presence in over 40 countries," a company claim that this profile has not checked.

Product lines and what each device is

Decatur's law enforcement catalog is concentrated in radar. Its product pages, read in October 2026, show the following lines.

Handheld radar

A handheld radar is a self-contained unit the officer aims from a fixed position. The Scout 2 is described by the company as a "Direction-Sensing Stationary K-Band Handheld Radar" weighing about one pound with a 2.8-inch LCD screen. Direction sensing means the unit distinguishes approaching from receding vehicles. The company also names the SVR 3D handheld radar. K-band is the radio frequency range NHTSA defines as 24.050-24.250 GHz.

Moving radar

Moving radar is a console unit mounted in the patrol car that can measure target speed while the patrol car itself is moving. Decatur's moving radar is the G3, offered in K-band and Ka-band (33.4-36.0 GHz) and described by the company as "Listed on NHTSA's Conforming Product List (CPL)." A newer version with a dual 2.8-inch full-color LCD display is sold as a "Direct replacement for existing G3 KD and G3 KaD units." According to the 2020 trade profile, the G3 replaced the Genesis II Select. The company also lists the VIP-2 Vehicle Interface Portal.

Lidar

Decatur sells the DragonEye Speed Lidar and DragonEye Compact Speed Lidar, which its own page identifies as "trademarks of DragonEye Technology, LLC, Norcross GA." Decatur has no lidar of its own on the CPL; the DragonEye models are listed under Dragon Eye Technology, LLC.

Other lines

Decatur also sells speed trailers and signs, which display speeds to drivers and do not issue citations. Outside policing it makes STREAM surface-velocity radar for hydrology, ProSpeed sports radar and the Si-X data logger.

Decatur on the federal conforming product list

NHTSA's CPL dated September 15, 2025 lists five current-production Decatur radars in Part I, the same as on the November 28, 2022 list that Georgia's Department of Public Safety posted. Mode "S" is stationary and "M" moving.

Genesis GHD (K; S)
Genesis II Select (K and Ka; S/M), with a radar mirror approved as a substitute display
Genesis III / G3 (K and Ka; S/M), with upgraded firmware approved when used with the DEI K-band antenna
Scout (K; S)
Scout 2 (K; S)

Part III, models "approved but no longer in production," includes the Genesis I, Genesis I Remote Display, Genesis II, Genesis II Directional, the Ka-band Genesis GHD, Genesis GHS, Genesis II Select Harley-Davidson, Genesis-VP, Genesis-VP Directional, Harley-Davidson Genesis VP Directional, Hunter, Hunter HHM, MVR-715, MVR-724, RA-GUN GN-1, RA-GUN KN-1, Speed Trak and Speed Trak KD.

Band matters. The K-band Genesis GHD is current; the Ka-band GHD is out of production. The SVR 3D handheld was not found on the 2022 or 2025 list text reviewed for this profile.

A CPL listing means a model met NHTSA's performance specification when first listed; NHTSA states that test results "do not represent product endorsement." NHTSA retired the down-the-road radar CPL on November 21, 2025, replacing it with an industry verification program based on IEEE Std 2450-2019. Whether any Decatur model has been verified under that program was not established. The list can be checked on the NHTSA CPL page.

State approvals and the record

Pennsylvania's December 29, 2018 list of approved speed-timing devices included the Decatur Genesis-II Select, approved for the Pennsylvania State Police in stationary mode only; state law there reserves radar to the State Police and automated enforcement. Approval for use is a state matter; the CPL was a federal grant-eligibility list.

No court decision or regulatory action naming Decatur Electronics was located in the official records reviewed for this profile. Some sources attribute a radar model called "Onyx" to Decatur; no such product appears on the company's pages, the 2022 or 2025 CPL, or the 2020 trade profile, and the attribution is not used here.

Frequently asked questions

When was Decatur Electronics founded?

Decatur Electronics was founded in 1955 in Decatur, Illinois, according to the company. Its history says Bryce Brown, a university professor, started the business as Muniquip, short for Municipal Equipment, and later kept the radar line and renamed the company Decatur Electronics, Inc. after selling his other products.

Where is Decatur Electronics located now?

Decatur Electronics is headquartered in Escondido, California, at 920 S. Andreasen Drive. Despite its name, it is no longer in Decatur, Illinois, where it was founded in 1955. A 2020 trade profile placed it in San Diego after a 2018 merger with its parent, D&K Engineering.

Who owns Decatur Electronics?

Decatur Electronics, LLC is owned by its managing partners, who bought the company from D&K Engineering, Inc. of San Diego in December 2022. Dale Visneskie became chief executive officer and William Janes chief operating officer at the time of the purchase, according to the company's announcement.

Is the Decatur G3 on the NHTSA conforming product list?

Yes. The Genesis III, or G3, appears in Part I of NHTSA's September 15, 2025 conforming product list in K and Ka band, rated for stationary and moving modes. NHTSA retired the down-the-road radar list on November 21, 2025, moving to an IEEE 2450 verification program.

Does Decatur Electronics make lidar?

No lidar of Decatur's own is on the federal list. Decatur sells the DragonEye Speed Lidar and DragonEye Compact Speed Lidar, which its website identifies as trademarks of DragonEye Technology, LLC of Norcross, Georgia. Those lidar models are listed on NHTSA's conforming product list under Dragon Eye Technology.

Is the Decatur Scout 2 a moving radar?

No. The Scout 2 is a stationary handheld K-band radar. The company describes it as direction-sensing, meaning it distinguishes approaching from receding traffic, and NHTSA's conforming product list records it as stationary mode only. Decatur's moving radar is the dash-mounted G3.

Decatur Electronics