Privacy Policy
Last Updated: November 7, 2025
At HamCalc, we take your privacy seriously. This Privacy Policy explains how we collect, use, and protect information when you use our website and antenna design calculators.
We are committed to transparency and believe in minimal data collection. Our calculators run entirely in your browser, and we do not collect or store your calculation data.
Information We Collect
1. Automatically Collected Information
When you visit HamCalc, we may automatically collect certain information through standard web technologies:
- Usage Data: Pages visited, time spent on pages, links clicked, and navigation paths
- Device Information: Browser type, operating system, device type, and screen resolution
- IP Address: Your IP address for security and analytics purposes (anonymized when possible)
- Referral Source: The website or search engine that referred you to HamCalc
2. Calculator Data (Not Collected)
Important: All calculator inputs and results are processed entirely in your web browser. We do not collect, store, or transmit your antenna design parameters, calculation results, or any data you enter into our calculators.
3. Cookies and Local Storage
We may use cookies and browser local storage for:
- Preferences: Remembering your theme preference (light/dark mode) and calculator settings
- Analytics: Understanding how visitors use our site to improve user experience
- Functionality: Enabling features like saving calculation history locally on your device
You can control cookies through your browser settings. Note that disabling cookies may affect some functionality.
How We Use Information
We use the automatically collected information to:
- Improve and optimize our calculators and website performance
- Understand which features are most useful to our users
- Identify and fix technical issues or bugs
- Analyze traffic patterns and user behavior to enhance user experience
- Protect against malicious activity and ensure website security
We do not sell, rent, or share your personal information with third parties for marketing purposes.
Third-Party Services
HamCalc may use third-party services that collect information used to identify you. These may include:
- Analytics Services: We may use services like Google Analytics or similar tools to understand website usage patterns. These services may use cookies and collect anonymized usage data.
- Hosting Services: Our website is hosted on third-party servers that may collect standard web server logs.
- Content Delivery Networks (CDN): We may use CDNs to deliver content faster and more reliably.
These third parties have their own privacy policies and we encourage you to review them.
Data Security
We implement appropriate technical and organizational measures to protect your information:
- HTTPS encryption for all data transmitted between your browser and our servers
- Regular security updates and monitoring
- Limited data collection to minimize risk exposure
- Secure hosting infrastructure with industry-standard protections
Your Privacy Rights
Depending on your location, you may have certain rights regarding your personal information:
- Access: Request information about what data we have collected
- Deletion: Request deletion of your data (note that calculator data is never stored on our servers)
- Opt-Out: Opt out of analytics tracking by using browser tools like Do Not Track or ad blockers
- Data Portability: Request a copy of your data in a portable format
Children's Privacy
HamCalc is designed for general audiences and is appropriate for all ages. We do not knowingly collect personal information from children under 13. Since we don't require accounts or collect personal information through our calculators, children can safely use our tools under parental guidance.
International Users
HamCalc is accessible worldwide. If you access our website from outside the United States, please be aware that your information may be transferred to, stored, and processed in the United States or other countries. By using HamCalc, you consent to the transfer of your information to countries outside your country of residence.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in our practices or for legal, operational, or regulatory reasons. We will notify you of any material changes by posting the new Privacy Policy on this page and updating the "Last Updated" date. We encourage you to review this Privacy Policy periodically.
Contact Us
If you have questions or concerns about this Privacy Policy or our data practices, please contact us.
We will make every effort to resolve your concerns and respond to your requests in accordance with applicable privacy laws.