coretechgroup.com

What It Is

Core Technology Group (CTG) is a professional tools and design services provider for electronics engineers. Its business is split into two main areas: hardware test tools such as frequency response analyzers (FRAs), signal amplifiers, and accessories; and high-end electronic engineering consulting covering analog/digital design, PCB layout, and embedded development.

Core Analysis

• Features and Use Cases: CTG’s SA-series FRAs are designed for generating Bode plots (gain and phase) and performing impedance measurements, with frequency coverage from 0.1 Hz to 100 MHz. They are not limited to RF applications, with a stronger focus on power-supply design and signal-chain validation. Companion amplifiers such as the PA-100 and injection transformers offer high isolation and high input impedance, making them suitable for oscilloscope probe amplification and broadband signal measurement.
• Supported Languages/Frameworks: Its software supports custom application programming, with the underlying stack involving Visual C++/Windows programming and PSPICE circuit simulation.
• Open Source/Closed Source and Self-Hosting: The products are closed-source commercial hardware and software. The software is installed and run locally, with no cloud dependency.
• API/SDK and Integration: The FRA software provides custom programming interfaces. The hardware connects to a PC via USB and is supported by a complete ecosystem of accessories, including probes and transformers.
• Documentation Quality: CTG provides application notes, user manuals, and a dBm-to-voltage conversion calculator, covering the basic needs of engineers. However, software distribution via CD feels somewhat outdated.

Pricing

The hardware is sold as a one-time purchase. FRA main units range from $4,990 to $9,990, amplifiers are around $345-$695, and accessories cost from tens to hundreds of dollars. Consulting services are billed as needed at $200/hour or $1,200/day within a 20-mile radius; beyond that, substantial travel expenses apply. Payment is by credit card only.

Pros and Cons

Pros: broad hardware frequency coverage; a complete test chain from instruments to accessories; deep aerospace and military-grade design experience; software supports secondary development. Cons: expensive hardware, not suitable for hobbyists; software distribution via CD and the interface may feel traditional; consulting travel costs are high.

Who It’s For

Best suited for professional electronics engineers who need to perform power-supply stability testing and signal-chain validation, as well as enterprise R&D teams in defense, nuclear, and test-and-measurement sectors.

Access from China and Alternatives

Website accessibility is unknown. As a U.S.-based physical hardware and localized consulting company, Chinese users would likely need to purchase hardware through international distributors, while consulting services are constrained by geography. Alternatives include Omicron Lab’s Bode 100 and relevant network analyzers from Keysight or Tektronix.