RF vs HAM QuickLog

This tool works as an equation solver : you can choose the parameter (variable) to be computed, and fix the other parameters. It also supports multiple systems of units : American (US) and metric (SI). 1) Quarter Wave Antenna : you can compute the length of a quarter wave antenna or solve other parameters (frequency or wave length). 2) Path Loss in Free Space : you can compute the path loss in free space or solve other parameters (frequency, wave length, or distance). 3) VSWR & S11 : you can compute the voltage standing wave ratio or solve other parameters (modulus of reflection coefficient (linear or logarithmic), argument of reflection coefficient, real part of input impedance, imaginary part of input impedance). 4) Power Converter : you can convert the power between [dBm] or [W] units, and compute the tension [dBuV] (into 50 [ohms]). 5) Reflected & Delivered Power : you can compute the ratio of the delivered power to input power or solve other parameters (ratio of reflected power to input power, modulus of reflection coefficient, voltage standing wave ratio). 6) Microstrip Transmission Line : you can compute the characteristic impedance of a microstrip transmission line, or solve other parameters (relative permittivity, track’s thickness, distance from the track to the ground plane, or track’s width). 7) Stripline Transmission Line : you can compute the characteristic impedance of a stripline transmission line, or solve other parameters (relative permittivity, track’s thickness, distance from the track to one reference plane, or track’s width). Some remarks : -The microstrip solver is based on the IPC-D-317A design guidelines. -The stripline solver is based on the IPC-D-317A design guidelines.

Log contacts in seconds, not minutes. HAM QuickLog is the complete HAM radio app combining lightning-fast logging with 11 built-in tools, perfect for casual operators, POTA activators, contesters and SWLs. Why operators choose HAM QuickLog: * Purpose-built templates: HF, SWL, Contest, POTA, minimal and Full templates show only the fields you need * Lightning-fast entry: Auto-fill some fields, field copying, and smart defaults minimize typing * Works anywhere: Includes several online and 6 fully offline tools (Grid Calculator, Azimuth Calculator, Q-Codes, UTC Clock, ITU Prefixes, My Grid & Location) * Zero paper in the field: Log directly on your iPhone or iPad, no transcribing later Home Screen Widget: See your latest QSOs and log stats at a glance — right from your Home Screen. No need to open the app. PDF creation: Generate a clean, printable PDF of your log. Print it directly from the app or share it — perfect for club submissions, personal archives or Field Day documentation. Built-in HAM Tools: * DX Cluster * Contest Calendar * Grid & Azimuth Calculators * QRZ & HamQTH Browsers * SOTA Cluster * Q-Codes Reference * ITU Callsign Prefixes * UTC Clock * And more Professional features: * Full ADIF import/export * Automatic duplicate checking (Contest mode) * One-tap callsign lookup (QRZ & HamQTH) * Dedicated SWL template * Works on iPhone and iPad Perfect for: * Quick portable logging on iPhone or iPad * POTA activators logging from parks * Contest operators needing speed * Field Day operations * SWLs tracking what they hear * Home station everyday logging Whether you're activating a park, working a contest, or enjoying casual QSOs, HAM QuickLog keeps you on the air - not buried in paperwork.