Techno vs RF & Ham Radio Toolkit

This is the Bluetooth speaker control APP, here you can connect to the speaker, there are many functions, such as music, microphone, guitar volume can be adjusted. In the individual interface there are balancing functions, but also see red sound, high school bass and so on. Let you do not need to touch the Bluetooth speaker, you can control the speaker within a certain distance.

RF Engineer Toolkit puts a professional-grade suite of radio-frequency calculators, converters and design helpers right in your pocket. Whether you are fine-tuning a microwave link on a rooftop, designing a PCB trace at your desk or studying for your amateur-radio licence, the answers you need are only a tap away. ► POWER & dB • Watts ↔ dBm ↔ dBW converter • Linear gain ↔ dB, PAE, EIRP/ERP • Power-density & exposure limits (FCC / ICNIRP) ► ANTENNAS & PROPAGATION • Downtilt coverage, LoS horizon & Fresnel zone • Dipole/monopole length, parabolic & helical design • Near/Far-field boundaries, wavelength, Doppler shift ► CABLES & TRANSMISSION LINES • Coax impedance plus loss by type & length • Delay, phase and quarter-wave transformers • Microstrip, stripline, CPW, differential pairs, skin depth ► RF SYSTEM ANALYSIS • End-to-end link-budget & free-space loss • Cascaded gain, NF, IP3, SFDR calculators • Radar maximum range, Friis, intermodulation products • Noise figure ↔ noise temperature, S / Z / Y / ABCD converter ► FILTERS & RESONANCE • Tank LC and RLC resonance points • RC/RL −3 dB filter time-constant tools ► GENERAL ELECTRONICS • Ohm’s law, voltage divider, series/parallel R-C solvers ► WAVEGUIDE • Rectangular & circular cutoff plus full WR catalogue • Intuitive clean UI — no ads, no sign-ups, no data collection • Works completely offline; perfect for field engineers • Switch between metric & imperial units instantly • Bookmark favourites and view underlying formulas • Core tools are free; a single in-app upgrade unlocks the entire lab Stop scrolling through datasheets or crunching numbers on spreadsheets — install RF Engineer Toolkit and solve it in seconds, anywhere, any time. Download now and keep the ultimate RF cheat-sheet ready on your iPhone or iPad! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/