GOLDEN ENGINEERING LLC
END USER LICENSE AGREEMENT (EULA) FOR AN-SOF® FOR WINDOWS
INDIVIDUAL USER LICENSE
PLEASE READ THIS SOFTWARE LICENSE AGREEMENT ("AGREEMENT") CAREFULLY BEFORE INSTALLING, ACTIVATING, OR USING THE AN-SOF® SOFTWARE. BY INSTALLING, ACTIVATING, OR USING THE SOFTWARE, YOU AGREE TO BE BOUND BY THE TERMS OF THIS AGREEMENT. IF YOU DO NOT AGREE TO THESE TERMS, DO NOT USE THE SOFTWARE, CLICK "I DO NOT ACCEPT", AND, IF APPLICABLE, REQUEST A REFUND WITHIN THE TERMS OF THE REFUND POLICY OUTLINED IN SECTION 10.

SECTION 1: LICENSE MODEL & THE "LIFETIME" LICENSE DEFINITION
1.1 On-Premises User License (Non-SaaS): AN-SOF® is licensed as an on-premises, individual user desktop application, operating under the traditional software model prior to the Software-as-a-Service (SaaS) era. You are purchasing a perpetual user license for a specific version of the software. You are not obligated to update, upgrade, or maintain an active subscription to continue using the specific version of the software you downloaded prior to your subscription’s expiration.
1.2 Definition of "Lifetime" Functionality: The license is considered "lifetime" solely in the sense that once the software is installed and activated on a compatible personal computer (PC), it will continue to execute indefinitely on that specific, unchanged hardware. Golden Engineering LLC does not guarantee, and is not liable for, the continued execution or compatibility of AN-SOF® if changes occur to your system, including but not limited to:
- Operating system (OS) upgrades, updates, patches, or service packs.
- System software, drivers, or security software updates.
- Changes, upgrades, or replacements of physical PC hardware components.

SECTION 2: SUBSCRIPTION PLANS & ANNUAL RENEWALS
2.1 Annual Subscription Plans: Golden Engineering LLC offers specialized annual plans (including the DX Plan for exclusively licensed amateur radio operators, the GOLD Plan, and the PLATINUM Plan).
2.2 Benefits of Active Subscription: Maintaining an active, paid annual subscription grants you:
- Access to download and run any new software versions, feature updates, bug fixes, or security patches released during the subscription term.
- Continued access to our professional technical support services.
2.3 No Auto-Renewal: Subscriptions do not automatically renew. Renewal is manual, allowing you full control over whether you wish to pay for another year of updates and technical support.

SECTION 3: VERSION OBSOLESCENCE, TECHNICAL SUPPORT, & HARDWARE ACTIVATION KEYS
3.1 Discontinuation of Older Versions: Because computer technology, operating systems, and security standards evolve rapidly, older versions of AN-SOF® will eventually be phased out and discontinued at the sole discretion of Golden Engineering LLC.
3.2 Three-Year (3-Year) Support Limit: Technical support for any specific software version is guaranteed only up to three (3) years following the date of that version's formal discontinuation. After this 3-year period, Golden Engineering LLC will no longer provide technical support, troubleshooting, or system compatibility assistance for that version.
3.3 Three-Year (3-Year) Activation Key & Migration Limit:
- Licensed users may migrate the software between PCs by requesting a replacement activation key.
- Replacement activation keys for any discontinued version of the software are only provided for up to three (3) years following its formal discontinuation.
- CRITICAL NOTICE: After three (3) years from a version’s discontinuation, Golden Engineering LLC will no longer generate or issue activation keys for that version. Consequently, if you choose not to update to a supported version, the software will be permanently locked to the specific hardware on which it was last activated. If that hardware fails, is modified, or is replaced after this 3-year window, the discontinued software can no longer be activated or moved to a new PC.

SECTION 4: OFFLINE PRIVACY & EMBEDDED IN-SOFTWARE NOTICES
4.1 Offline Operation & No Data Collection: AN-SOF® operates entirely offline on your local computer. It does not establish an internet connection to run, does not send data to online servers, and Golden Engineering LLC does not collect usage, configuration, or user data.
4.2 Embedded Promotional Content: Because the software operates completely offline, advertisements, announcements, and/or promotional messages are statically embedded directly within the software files themselves. By accepting this Agreement, you agree to receive these local, embedded promotional messages within the software interface.
4.3 Expiration Reminders: Upon the expiration of your annual subscription or license term, a persistent reminder message indicating that the subscription has expired will be displayed every time the software is launched. This warning message is integrated into the application interface and cannot be disabled, bypassed, or removed.

SECTION 5: INTELLECTUAL PROPERTY & OWNERSHIP
5.1 Reservation of Rights: All ownership rights, copyrights, trademarks, intellectual property rights, and titles to the AN-SOF® software (including but not limited to the Conformal Method of Moments [CMoM] engine, documentation, user interfaces, and calculations) are and shall remain the exclusive property of Golden Engineering LLC ("Licensor"). No title to or ownership of the software is transferred to the Licensee.
5.2 Usage Restrictions: You may not:
- Reverse engineer, decompile, disassemble, translate, adapt, or modify the software.
- Bypass, disable, or circumvent any license keys, serial number prompts, or copy protection mechanisms.
- Rent, lease, sublicense, distribute, or lend the software to any third party.
- Install or use the software on a shared network or multi-user environment. This is an individual user license.
5.3 Archival Copy: You may make one (1) backup copy of the software installation files solely for personal archival purposes.

SECTION 6: LIVE CHAT & TECHNICAL SUPPORT SCOPE
6.1 Eligibility: Live chat and technical support tickets are exclusively available to users with active licenses and paid, ongoing annual subscriptions.
6.2 Scope of Support: Technical support is strictly limited to resolving issues related to the installation, activation, and basic operation of AN-SOF®. Support may include model optimization tips and software guidance to help you maximize the software's capabilities. However, technical support does not include custom antenna design, engineering consulting, or professional consulting services of any kind.
6.3 Support Availability: Live chat responses are provided during regular business hours (weekdays from 9:00 AM to 4:00 PM Central Time). AI chatbots may occasionally be utilized to supplement our support staff.

SECTION 7: DISCLAIMER OF WARRANTIES & ACCURACY OF SIMULATION RESULTS
7.1 Provided "AS IS": AN-SOF® is provided "AS IS" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose.
7.2 Simulation Limitations: You acknowledge that simulation results are mathematical approximations of real-world environments. Golden Engineering LLC does not warrant or guarantee that the simulation results produced by AN-SOF® will match real-world, physical measurements. Accuracy is subject to significant variables, including but not limited to:
- Incorrect or incomplete user input data.
- Computational limits of your local hardware system.
- Environmental obstacles, surrounding physical objects, soil/ground conductivity, and dielectric properties.
- The user’s skill level and understanding of Computational Electromagnetics (CEM).

SECTION 8: ELECTROMAGNETIC RADIATION, HUMAN SAFETY & INDEMNIFICATION
8.1 No Human Safety Determinations: AN-SOF® is not designed, tested, or intended to evaluate human safety, biological hazards, or permissible exposure limits regarding electromagnetic fields (EMF) or radiofrequency (RF) radiation. This software does not determine whether the electromagnetic energy emitted from your antenna setup is safe for humans, animals, or surrounding property.
8.2 User Responsibility: You are solely and exclusively responsible for ensuring that any physical antenna you design, construct, or operate does not emit hazardous levels of electromagnetic radiation, and complies with all local, national, and international safety limits and regulatory requirements.
8.3 Indemnification: You agree to defend, indemnify, and hold harmless Golden Engineering LLC, its members, managers, employees, and developers from and against any and all claims, damages, liabilities, costs, and expenses (including reasonable attorney's fees) arising out of or relating to:
- The physical construction, testing, or operation of any antenna modeled using AN-SOF®.
- Any personal injury, death, property damage, or regulatory fines resulting from electromagnetic radiation emitted by your antennas.
- Your reliance on simulation calculations for safety-critical determinations.

SECTION 9: LIMITATION OF LIABILITY & LEGAL REMEDIES
9.1 Exclusion of Damages: To the maximum extent permitted by law, Golden Engineering LLC shall not be liable for any personal injury, property damage, loss of profits, loss of data, business interruption, or any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use this software, regardless of the legal theory (contract, tort, negligence, or otherwise).
9.2 Cap on Liability: Under all circumstances, the cumulative liability of Golden Engineering LLC for any breach of contract, negligence, or legal claim related to this Agreement shall be strictly limited to the actual amount paid by the Licensee for the software license.
9.3 Attorney's Fees: In the event of legal action arising under this Agreement, the court shall have the discretion to award reasonable attorney's fees to the substantially prevailing party.
9.4 Governing Law & Venue: This Agreement shall be governed by, and construed in accordance with, the laws of the State of Uruguay. Any legal dispute, action, or proceeding arising under this Agreement shall be prosecuted exclusively in the courts of Montevideo, Uruguay, and you hereby submit to the personal jurisdiction of those courts.

SECTION 10: REFUND POLICY
10.1 All Sales Final: Due to the availability of a fully functional Trial Version with no expiration limit, all sales of AN-SOF® licenses are final, non-refundable, and non-exchangeable.
10.2 Evaluation Period: Golden Engineering LLC provides a free, perpetual Trial Version specifically so that you may evaluate installation, calculations, user interfaces, and operating system compatibility prior to purchase. The Trial Version has a limits-cap of fifty (50) total unknowns (calculated as segments + wire junctions + ground connections). By purchasing a license, you acknowledge that you have:
- Downloaded and thoroughly tested the free Trial Version on your PC.
- Confirmed that the software meets your physical system requirements and design goals.
- Accepted the segment limitations of the free tier and the operational conditions of the paid tiers.
10.3 Inaccurate Results Non-Refundable: Dissatisfaction with simulated results or deviations between calculations and physical measurements do not constitute grounds for a refund.
10.4 Exceptional Circumstances: Golden Engineering LLC may, at its absolute and sole discretion, review refund requests on a strict case-by-case basis under the following exceptional conditions:
- Duplicate or accidental identical purchases.
- A verified, critical software defect preventing installation or calculation execution that cannot be resolved by our technical support team.
- Request submissions under these circumstances must be emailed to info@antennasimulator.com within seven (7) days of the purchase date, accompanied by comprehensive diagnostic screenshots and purchase receipts.

Golden Engineering LLC
www.antennasimulator.com
info@antennasimulator.com