// Thermal PCB Inspection
HotSpotter turns your USB thermal camera into a professional PCB inspection tool. Calibrated temperature readings, real-time thermal imaging, and multi-camera support — all in a clean Windows desktop app.
We celebrate high speeds. We rarely celebrate controlled deceleration .
The global railway industry moved toward , where all brake components are installed directly on the bogie frame. This reduces slack, improves synchronisation, and allows for quicker bogie exchange. RDSO Technical Pamphlet G-73 was issued to standardize this transition for Indian conditions.
The pamphlet provides standardised routing for flexible hoses between the underframe (where the main reservoir and driver’s brake valve sit) and the bogie. Critical points include:
Since Indian freight wagons vary from empty to 60+ tonnes loaded, G-73 mandates an (ELSD) mounted on the bogie or connected to the suspension. The pamphlet describes:
By following these recommendations, we can ensure that the RD&SO Technical Pamphlet G-73 continues to play a vital role in ensuring the safety, reliability, and efficiency of railway systems in India.
The new amendment will likely rename the pamphlet to "Guidelines for Smart Bogie-Mounted Brake Systems" but retain the classic G-73 designation.
// See It In Action
Pi 5 PMIC and surrounding components heating up — 4× speed
// Real-World Results
An SP4T RF switch in a flip-chip QFN package, with DC current applied through one path to generate localised heating. HotSpotter resolves individual bond pad traces and pinpoints the die hot spot through the package — the kind of measurement electronics labs run every day.
Click an image to enlarge
We celebrate high speeds. We rarely celebrate controlled deceleration .
The global railway industry moved toward , where all brake components are installed directly on the bogie frame. This reduces slack, improves synchronisation, and allows for quicker bogie exchange. RDSO Technical Pamphlet G-73 was issued to standardize this transition for Indian conditions.
The pamphlet provides standardised routing for flexible hoses between the underframe (where the main reservoir and driver’s brake valve sit) and the bogie. Critical points include:
Since Indian freight wagons vary from empty to 60+ tonnes loaded, G-73 mandates an (ELSD) mounted on the bogie or connected to the suspension. The pamphlet describes:
By following these recommendations, we can ensure that the RD&SO Technical Pamphlet G-73 continues to play a vital role in ensuring the safety, reliability, and efficiency of railway systems in India.
The new amendment will likely rename the pamphlet to "Guidelines for Smart Bogie-Mounted Brake Systems" but retain the classic G-73 designation.
// Supported Cameras
HotSpotter supports popular hobbyist thermal cameras out of the box. Don't see yours listed? Contact us — new camera support is actively being added. rdso technical pamphlet g-73
Compact 256×192 USB thermal camera. Plug-and-play UVC class device — no custom drivers required on Windows 10/11. Units are manufactured by Link-Card and may carry InfiRay sensors. We celebrate high speeds
UVC · USBHigh-resolution USB thermal camera with vendor protocol. 640×512 native resolution. Requires USB 3.0 for full frame rate. This reduces slack, improves synchronisation, and allows for
Vendor Protocol · USB 3.0Compact 384×288 USB thermal camera with InfiRay sensor. UVC class device — works out of the box on Windows 10/11.
UVC · USBAdditional camera models are under development. Contact us with your camera model to request support.
Request via email// Pricing
Machine-locked license key. No account needed. Hardware sold separately — contact us to enquire.
HotSpotter Annual
Per year · Machine-locked · One seat
HotSpotter Lifetime
One-time · Machine-locked · One seat
Join the mailing list for hardware kit availability
// Getting Started
Manual license activation keeps things simple and secure. No account needed.
Complete checkout and download the HotSpotter installer from the link in your confirmation email.
Install and launch HotSpotter. Open the License dialog from the Help menu and copy your unique Machine ID.
Email your Machine ID to [email protected]. Receive your license key within 24 hours. Enter it once and you're done.
// System Requirements
HotSpotter is a lightweight Windows desktop application with minimal dependencies.
Operating System
Windows 10 or 11
USB
USB 3.0 port
Camera
Supported thermal camera