Welcome to my Tech blog!
- Receiving Pictures from Space with Sound: Tuning Into Weather Satellites
Things You Will Need: Hardware: RTL-SDR Bundle – This affordable software-defined radio bundle is essential for capturing satellite signals. You can get it here on Amazon. Software: SDR Application – You’ll need a software-defined radio application to tune into the satellite frequencies. I used SDR++, which is user-friendly and powerful. You can download it here. Audio Recorder (WAV format support) – This will be used to capture and save audio from the satellites. Most SDR applications, like SDR++, already have built-in functionality for audio recording. SatDump – This software helps decode satellite signals and convert them into images or data.… Read more: Receiving Pictures from Space with Sound: Tuning Into Weather Satellites - Dialing Up Dinner: Hacking a Blue Light Phone to Order Pizza
During a deployment of blue light phones at a university, one of the units got damaged and needed replacing. Somehow, I ended up with a broken Talkaphone VoIP 600 sitting next to my desk. That’s when a thought crossed my mind: wouldn’t it be hilarious to use an emergency phone to order pizza? With that idea in mind, I rushed home to see if I could revive the unit. Unfortunately, the circuit board was fried, and the components were far too small for me to attempt soldering by hand. Luckily, I happened to chat with someone on the engineering team… Read more: Dialing Up Dinner: Hacking a Blue Light Phone to Order Pizza - Emergency BlueLight Stations
Things have been a bit busy lately; so I figured I would leave some pictures of what I have been working on recently. These are emergency blue light stations! Bluelight emergency phones, commonly seen in areas like campuses and parking garages, are essential safety stations equipped with highly visible blue lights for quick access during emergencies. These phones use a cellular router and an Analog Telephone Adapter (Last Picture) for reliable communication. The cellular router connects the phone (Keypad in first picture) to the mobile network, while the ATA converts the keypad’s analog signal for digital transmission. This setup enables… Read more: Emergency BlueLight Stations - CompTIA Pentest+: What to Expect and How to PrepareWhile studying for the PenTest+ exam, I discovered a couple helpful resources that could benefit others preparing for the same test. When I study for CompTIA exams I always find myself researching what to expect on the exam, Wasting time worrying about how difficult the test may be instead of studying for the exam like I originally intended to. My first piece of advice for preparing for the Pentest+, or any certification exam is to relax. You can’t effectively study for the exam if you are constantly worried about failing. Failing is part of any meaningful journey, and this is… Read more: CompTIA Pentest+: What to Expect and How to Prepare
- Enhancing VOIP Communication for Fire Panels: Leveraging FSK and DTMF Modulation Techniques
In the realm of Voice over Internet Protocol (VOIP), effective communication with Fire Panels is paramount for ensuring the safety and security of premises. Central to this endeavor are modulation techniques like Frequency Shift Keying (FSK) and Dual-Tone Multi-Frequency (DTMF), which play a crucial role in transmitting alarm signals and control commands. In this blog post, we’ll explore the fundamentals of FSK and DTMF modulation techniques and how they contribute to enhancing VOIP communication for Fire Panels, particularly in the context of industry-standard protocols like SIA and Contact ID. Understanding FSK and DTMF: FSK modulation involves varying the frequency of… Read more: Enhancing VOIP Communication for Fire Panels: Leveraging FSK and DTMF Modulation Techniques