REI OSCOR Spectrum Analyzers: OSCOR Green vs Blue, Specifications
REI OSCOR Spectrum Analyzers: Specifications, Pricing, Training, and Choosing Between Models
REI OSCOR is a line of advanced spectrum analyzers developed by Research Electronics International (REI), a leading manufacturer of technical surveillance counter-measures (TSCM) equipment. These analyzers are designed for detecting hidden transmitters, wireless bugs, and unauthorized RF activity. Used by government agencies, law enforcement, and corporate security teams, the OSCOR series is considered a gold standard in the field of counter-surveillance.
What is REI OSCOR?
The term OSCOR stands for Omni Spectral Correlator. OSCOR devices sweep large sections of the radio frequency spectrum quickly, helping operators identify unusual or suspicious transmissions. Their portability, speed, and built-in antennas make them ideal for field use without requiring bulky external equipment.
Main REI OSCOR Models
The three most recognized models are:
| Model | Frequency Range | Sweep Speed | Key Features |
|---|---|---|---|
| OSCOR Green (OGR-8 / OGR-24) | 10 kHz – 8 GHz / 10 kHz – 24 GHz | 24 GHz per second (~2 million data points) | High-resolution trace recording, 8.4-inch touchscreen, waterfall spectrum analysis, AM/FM/SSB/Video demodulators, built-in antennas, ~9.6 lb weight. |
| OSCOR Blue (OBL-8 / OBL-24) | 10 kHz – 8 GHz / 10 kHz – 24 GHz | 24 GHz per second (12.2 kHz steps) | Captures traces every 5 seconds for fast-changing signals, portable design, RSSI locating, advanced on-board analysis, 3–4 hours battery life. |
| OSCOR 5000 (Legacy) | Specialized monitoring ranges | Slower sweep compared to newer models | Older stationary model used for automated bug detection. Now largely replaced by Green and Blue. |
Why Security Professionals Choose REI OSCOR Spectrum Analyzers
- Wide Frequency Coverage: Detects RF activity up to 24 GHz.
- Lightning-Fast Sweeps: Scans 24 GHz per second (≈2M data points).
- Portable & Field-Ready: Built-in antennas and touchscreen interface, no laptop required.
- Trusted Globally: Standard equipment for TSCM professionals worldwide.
- Multi-Use Applications: Suitable for corporate security, law enforcement, counter-espionage, and RF mapping.
Applications in Different Industries
| Industry | Application |
|---|---|
| Corporate Security | Identify hidden transmitters and protect sensitive boardrooms |
| Government Agencies | Counter foreign surveillance and protect classified information |
| Law Enforcement | Locate illegal transmitters and counter organized crime operations |
| Private Investigators | Perform professional RF sweeps for clients |
Overview: REI OSCOR Green and OSCOR Blue
The biggest question buyers ask is: What’s the difference between OSCOR Green and OSCOR Blue?
Both models share the same frequency range of 50 kHz – 24 GHz, making them effective against most wireless surveillance threats. However, the OSCOR Blue is the more advanced version, with a faster sweep speed, a larger color touchscreen, and enhanced analysis tools. The OSCOR Green, on the other hand, is a reliable and cost-effective option for corporate security and mid-level TSCM operations.
Key Differences Between OSCOR Green and OSCOR Blue
| Feature | OSCOR Green | OSCOR Blue |
|---|---|---|
| Frequency Range | 50 kHz – 24 GHz | 50 kHz – 24 GHz (extended coverage options) |
| Sweep Speed | Fast – suitable for standard field sweeps | Ultra-fast – optimized for real-time detection |
| Display | Compact LCD | 10-inch high-resolution color touchscreen |
| Analysis Features | Standard spectrum analysis with logging | Advanced tools for modulation recognition & reporting |
| Best For | Corporate security, private investigators, mid-level TSCM | Government, military, law enforcement, advanced TSCM professionals |
Detailed Look: OSCOR Green
The OSCOR Green is a portable and efficient spectrum analyzer that provides fast sweep speeds and reliable detection. It’s designed for organizations that need professional-grade TSCM tools without the higher investment of the Blue version. Common users include corporate security teams, private investigators, and consultants performing routine sweeps.
- Frequency Range: 50 kHz – 24 GHz
- Portable, lightweight design
- Compact LCD display
- Logs and records sweeps for review
Detailed Look: OSCOR Blue
The OSCOR Blue is the flagship model of the OSCOR series. With a 10-inch high-resolution color touchscreen, ultra-fast sweep speed, and advanced analysis features, it is built for professionals who demand maximum performance. This model is widely used by government agencies, military, and elite TSCM operators for high-security environments.
- Frequency Range: 50 kHz – 24 GHz (with enhanced options)
- Ultra-fast sweep speed with real-time results
- 10-inch touchscreen for better visualization
- Advanced analytical tools for in-depth investigation
How to Choose Between REI OSCOR Models
| Priority | Best Model | Why |
|---|---|---|
| Forensic-level detail | OSCOR Green | High-resolution spectrum traces for deep analysis. |
| Fast-changing signals | OSCOR Blue | Captures data every 5 seconds to detect transient RF activity. |
| Wide coverage (future-proof) | 24 GHz Models (Green or Blue) | Detects surveillance devices operating above 8 GHz. |
| Budget-friendly | Used OSCOR 5000 | Affordable but outdated, only for training/demo. |
OSCOR Green vs OSCOR Blue: Which Should You Buy?
While both models share the same trusted REI design, their strengths are slightly different. Here’s a head-to-head comparison:
| Feature | OSCOR Green | OSCOR Blue |
|---|---|---|
| Trace Resolution | Higher (24.4 kHz) – excellent for forensic analysis | Intermediate (12.2 kHz) – optimized for real-time use |
| Trace Capture Speed | Every 10 seconds | Every 5 seconds |
| Best Use Case | Detailed investigations requiring accuracy | Mobile operations and fast-changing environments |
| Portability | Portable with built-in antennas | Ultra-portable and lightweight |
| Price (New) | $35,000 – $40,000 | $45,000 – $47,000 |
Which One Should You Choose?
The choice between OSCOR Green and OSCOR Blue depends on your budget, operational needs, and level of security required:
- Choose OSCOR Green if you need a reliable and professional spectrum analyzer for routine corporate sweeps and mid-level TSCM tasks.
- Choose OSCOR Blue if you require advanced analysis, faster detection, and are working in high-security environments such as government or military operations.
Either way, a used REI OSCOR can deliver the same professional-grade performance at a fraction of the new cost, making it a smart investment for cost-conscious buyers.
FAQ: OSCOR Green vs OSCOR Blue
1. What’s the difference between OSCOR Green and OSCOR Blue?
OSCOR Green is better for high-resolution forensic analysis, while OSCOR Blue is designed for real-time monitoring of fast-changing signals. Green captures more detailed traces, but Blue saves data faster and is slightly more expensive.
2. Is the OSCOR 5000 still useful?
The OSCOR 5000 can be purchased used at a low price, but it is outdated compared to Green and Blue. It may be helpful for training but is not recommended for professional TSCM operations today.
3. How much does REI OSCOR training cost?
The Level 2 OSCOR training course costs about $2,085 per student. It provides hands-on instruction on OSCOR operation, analysis, and advanced TSCM techniques.
4. Which OSCOR model is best for corporate security?
The OSCOR Green 24 GHz is typically best for corporate teams, as it balances detailed analysis with wide frequency coverage.
5. Do I need the 8 GHz or 24 GHz version?
The 24 GHz model is strongly recommended because many modern devices (including Wi-Fi, 5G, and advanced covert transmitters) operate above 8 GHz. Choosing 24 GHz ensures future-proof coverage.
6. Do both models cover the same frequency range?
Yes, both the OSCOR Green and OSCOR Blue cover 50 kHz – 24 GHz, with the Blue offering extended analysis options.
7. Is the OSCOR Blue worth the higher cost?
For government, military, and high-security operations, the OSCOR Blue’s faster sweep speed and advanced analysis are critical. For general corporate sweeps, the OSCOR Green is often sufficient.
8. Can non-technical users operate these devices?
Both devices are designed for professional use. With proper training, corporate security teams can effectively operate the OSCOR Green. The OSCOR Blue requires more expertise due to its advanced features.
9 How portable are these analyzers?
Both models are designed for field use, with battery operation and integrated antennas. The Blue is slightly larger due to its bigger display.
10. Which is better for corporate security teams?
The OSCOR Green is usually the better fit for corporate environments, offering excellent detection capability at a lower investment.
Conclusion
Both the OSCOR Green and OSCOR Blue are industry-leading spectrum analyzers from REI, designed to protect sensitive environments from hidden surveillance threats. If you are seeking a balance between performance and budget, the OSCOR Green is an excellent choice. For those requiring cutting-edge speed, visualization, and advanced analytics, the OSCOR Blue is the ultimate counter-surveillance tool.