SpeechTrack vs RF calculator & Smith Chart

Not Just an AI Meeting Tool — Your Most Privacy-Focused AI Assistant SpeechTrack, created by the Taiwan team at j5create, keeps every recording and transcript 100 % on your phone. Worried that important meetings, client interviews, or private conversations might be monitored or stored on unknown AI cloud servers? Let SpeechTrack end that anxiety. We’re the only recording app on the market using on-device AI processing. All recordings and transcripts are generated directly on your phone. We never upload, store, or analyze your raw data. Only when you actively request translation, summarization, or other advanced AI features do we connect to the OpenAI API — and even then, no third-party server ever handles your data. Every data flow and privacy safeguard is tightly controlled. Enjoy Top-Level Privacy and Powerful Features - Real-Time Transcription – One-tap recording with instant text output, capturing every key detail accurately. - Real-Time Language Translation – Supports 112 languages for seamless cross-border communication. - Smart Summaries – AI automatically extracts the highlights to deliver concise meeting takeaways fast. - Exclusive SpeechSync Technology – Share your live transcript and translations instantly with collaborators on the same network via a browser for effortless multi-participant access. - Search & File Organization – Quickly locate transcripts and organize them into folders however you like. - Bilingual Conversation Mode – Built-in live translation and voice playback let you chat easily with people who speak other languages. - Offline Operation – No internet needed: core functions (recording and transcription) work fully offline. Try It Free Download now and enjoy a 7-day full-feature trial — no subscription required. Boost Performance with the j5create JSS830 Smart Speaker Pair SpeechTrack with the JSS830 Smart Speaker to achieve maximum performance. Equipped with intelligent noise reduction and voice-enhancement engines, the JSS830 dramatically improves recording quality and transcription accuracy — perfectly uniting hardware and software advantages. Terms of Use: https://info.j5create.com/pages/end-user-license-agreement

RF Calculator & Smith Chart is an all-in-one RF engineering toolkit for impedance matching, RF network analysis, antenna calculations, filters, attenuators and wireless system design. Built for RF engineers, electronics engineers, students, technicians and radio enthusiasts, it brings essential RF calculations and design tools together in one convenient app. Analyze impedance, work with Smith Charts, calculate VSWR and S11, design matching networks, estimate path loss, build RF attenuators and evaluate wireless links without jumping between multiple tools. RF & IMPEDANCE TOOLS • Smith Chart for impedance visualization and matching • S11 and reflection analysis • Reflection coefficient calculator • VSWR calculator • Impedance and transmission-line calculations • Cascaded RF network calculations IMPEDANCE MATCHING Design and analyze common RF matching networks: • L matching networks • Pi (π) matching networks • T matching networks • Stub tuner calculations Useful for antenna matching, RF amplifiers, transmission lines and other impedance-matching applications. RF FILTER DESIGN Calculate and design common passive and RF filters: • RC filters • RL filters • RLC networks • Butterworth LC low-pass filters • Chebyshev LC low-pass filters • Filter designs up to 8th order • Microstrip band-pass filters • Microstrip band-reject / notch filters RLC CIRCUITS Analyze frequency-dependent RLC networks: • Series RLC circuits • Parallel RLC circuits • Resonant frequency calculations • Frequency behavior and reactance RF ATTENUATOR DESIGN Quickly calculate standard RF attenuator networks: • Pi (π) attenuator • T attenuator • Bridged-T attenuator Ideal for RF signal-level control, impedance-matched pads and test setups. ANTENNA & PROPAGATION TOOLS Plan and evaluate RF and wireless systems with: • Antenna design utilities • Free-space path loss calculations • Friis transmission calculations • RF link budget calculator • Power density calculator • Radar maximum-range calculator COMPONENT DESIGN & REFERENCE Useful electronics tools are also included for RF design and prototyping: • Air-core inductor design • Spiral inductor design • Multi-layer air-core inductor calculations • SMD resistor code • Resistor color code • Resistors in series and parallel • SMD capacitor code • Capacitors in series and parallel BUILT FOR PRACTICAL RF WORK RF Calculator & Smith Chart is designed for quick engineering workflows. Select a tool, enter your parameters and get the values you need without working through repetitive equations manually. Use it for: • RF circuit design • Impedance matching • Antenna projects • Wireless link planning • Filter design • RF testing and troubleshooting • Electronics laboratories • Engineering study and coursework • Amateur radio and RF experimentation Whether you're checking VSWR, designing an impedance-matching network, calculating a link budget or experimenting with RF filters, RF Calculator & Smith Chart keeps essential RF engineering tools within easy reach.