Privacy Policy

1. 100% Local, In-Browser Calculation Guarantee

At AntennaCalcs.com, your privacy and operational security are top priorities. All calculator math and algorithms execute 100% locally within your web browser using client-side JavaScript.

We do not capture, log, store, or transmit your input frequencies, wire cut dimensions, transmitter power levels, coaxial cable choices, or custom RF measurements back to any server or third-party database.

2. Third-Party Advertising & Google AdSense

To maintain free access to our tools and infrastructure, we may partner with third-party advertising vendors, including Google AdSense.

• Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites across the internet.
• Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to AntennaCalcs.com and/or other sites on the Internet.
• Users may opt out of personalized advertising by visiting Google Ads Settings.
• Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.

3. Browser Storage & Cookies

Our application uses browser localStorage exclusively to remember your UI display preferences (such as your Light/Dark Mode setting). This information never leaves your device and contains no personally identifiable data.

4. Contact Form Inquiries

If you voluntarily reach out via our Contact page (powered by Web3Forms), we collect your name, email address, and message content solely to review and respond to your inquiry. We do not sell, rent, or distribute your email address to marketing lists or commercial data brokers.

5. Contact Regarding Privacy

If you have questions about this Privacy Policy or our client-side architecture, please submit a message via our Contact page.