Oehler Research · Ballistic Measurement Systems
Oehler System 88
A GPS-synchronized radio network of 2 to 4 stations that measures muzzle velocity, multi-point time of flight and impact coordinates across several kilometers.
System 88 is Oehler's long-range exterior-ballistics system, in field use since 2014. It networks 2 to 4 identical wireless controllers under a shared GPS time base and records muzzle velocity, time of flight at each station and impact coordinates on the same shot, over spans of several kilometers. Timing resolves to the microsecond and target position to the centimeter. Each station runs on a rechargeable 12V gel-cell battery for several days, which suits multi-day range programs. The Extended Range Truing software supplied with it merges many tests into a single corrected trajectory solution. Oehler restricts the international export of this system, and supply is assessed case by case.
Overview
System 88 answers a question a single station cannot. The ballistic coefficient is not constant; it changes as velocity decays, so a correction measured at one distance does not extrapolate to the full trajectory. System 88 places 2 to 4 stations along the flight path. Each is the same wireless controller with Skyscreen III screens and a four-microphone target array, and GPS gives them a common time base, so arrival times at different stations can be subtracted directly. The standard antennas have been tested to 1 mile; with 3 to 4 stations the span reaches several kilometers. The included Extended Range Truing software folds many tests at many distances into one corrected trajectory solution rather than a set of separate correction factors. Units switch between metric and yards, feet and inches to match range reporting conventions. For safety the system allows only one bullet in the air at a time.
Key specifications
| Measured quantities | Muzzle velocity, time of flight to each target, impact coordinates |
|---|---|
| Range capability | Standard antennas tested to 1 mile; 3–4 stations can be deployed, spanning several kilometers |
| Accuracy | Microsecond timing, centimeter target position |
| Synchronization | Radio network with GPS timing |
| Composition | 2–4 identical wireless controllers, Skyscreen III, four-microphone target arrays (square and linear), Windows computer |
| Power | Rechargeable 12V gel-cell battery, several days per charge |
| Units | Metric, or yards / feet / inches |
| Software | Ballistic Explorer + Extended Range Truing |
| Firing limit | Only one bullet in the air at a time |
Features
GPS-synchronized multi-station radio network
2–4 stations share one time base over several kilometers, so arrival times subtract directly with no alignment afterwards.
Microsecond timing, centimeter position
Timing resolution and target accuracy are good enough to correct a long-range trajectory model, not just to show a trend.
12V gel-cell battery lasts several days
Multi-day range work needs no mains power and no nightly recharge run.
Extended Range Truing
Merges many tests at many distances into one corrected trajectory solution instead of a separate correction per distance.
Metric / imperial switching
Report units follow the conventions of the range you are working on.
Setup and applications
Multi-station · NETWORK
2–4 stations along the trajectory
Every station is the same wireless controller on a GPS time base, so arrival times subtract directly and yield a segmented velocity-decay curve.
Target layout · TARGET
Square and linear microphone arrays
Choose the array shape by shot dispersion and what you need to measure; each gives time of flight and centimeter-level impact coordinates.
Range work · FIELD
Multi-day outdoor operation
The 12V gel-cell battery runs for several days, so equipment can stay on the range through a test series without nightly teardown.
Range measurement · RANGE
Ranges and proving grounds
Outdoor velocity, time-of-flight and impact measurement needs sensors that survive sun, dust and muzzle blast, and controllers that can run for days.
Options and configuration
System 88 is a system-class product and Oehler restricts its international export. Send us your requirement first; Evencat will obtain a supply assessment and lead time from the factory.
Standard equipment (included)
Options and extensions
Service and support
Downloads
This product is a ballistic measurement system. Oehler restricts its international export and a US export license may be required. Evencat can submit an export assessment to the factory and obtain a supply and lead-time reply. Evencat supplies and quotes Oehler Research, Inc. (Austin, Texas, USA) products in Taiwan, with model selection advice, supply assessment and training.
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