The Sin City Repeater Group, Inc. provides the following external links and reference materials as a public service to the amateur radio community and to visitors seeking additional information related to repeater systems, radio infrastructure, communications networks, and associated technical resources. These links are compiled from publicly available sources and are presented solely for informational and educational purposes.
While reasonable efforts may be made to ensure that listed resources are relevant and functional at the time of inclusion, the Sin City Repeater Group, Inc. does not monitor, control, or routinely verify the content, accuracy, or availability of any third-party websites.
Propagation
- Space Weather
- HAM QSL (solar conditions)
- Understanding Solar-Terrestrial Data
- Making Sense of Solar Indices
- NOAA Space Weather
- Mike’s Weather Page
- Simon’s World Map (free, downloadable alternative to a Geochron)
- Maidenhead Grid Locator Lookup Map
- The Great Circle Map (GCM)
- Antenna Bearings – Geodesic Map
- HF Propagation Map
- HamDXMap
- MUF Information
- VOACAP
- DX Maps
- DX Cluster
- WSPRnet
- PSK Reporter
- RF Line-of-Sight
- Height Above Average Terrain (HAAT) Calculator
- Satellite Tracking for Amateur Radio
- VHF/UHF Repeaters (Greater Buffalo)
- Amateur Radio Ham Repeater Mapping
- ADIF to Map
- Real Time Tracking using APRS
- WebSDR (you may get a security warning, but you can safely proceed to the site)
- High Altitude Balloon Telemetry Map
- Sun Movement and Sunlight Phase Tracker
- POTA/SOTA/WWFF Map (locations worldwide)
- MeshMap – Meshtastic Node Map
- Meshtastic Site Planner
Antennas & Calculating
- K7MEM Antenna Calculator
- W8JI Antenna Articles
- EZNEC Antenna Software
- AutoEZ – Automated use of EZNEC
- Using AutoEZ with Antenna Modeling
- Wire Antenna Calculator
- Dipole Antenna Length Calculator
- Field Day Antenna Length Table
- Yagi-Uda Antenna Calculator
- Full-Wave Loop Antenna Length Calculator
- Mag Loop Antenna Length Calculator
- SWR Calculator
- Understanding Standing Wave Ratio
- Transmission Line Calculator
- Free Space Path Loss Calculator
- RF Unit Conversion Calculator
- Frequency to Wavelength Calculator
- Guide to Weatherproofing Exterior Coax Cables
Circuit Design & Calculators for Circuit Design
- Electronics Tutorials
- Circuit (component) Calculators
- LC Filter Design Calculator
- PCB Builder
- Calculators by DigiKey
- All About Circuits – Tools
- All About Circuits – Datasheets
- All About Circuits – EE Reference
- How to Build and Use Current Chokes
- RF Tools
- EEWeb
- Falstad Circuit Simulator
- dBm to Watts Calculator
- Voltage to dBm Conversion
SKYWARN
ARES/RACES
Contesting
Band Plan
FCC License Renewal
Disclaimer of Liability and No Endorsement
The Sin City Repeater Group, Inc., a Nevada nonprofit corporation recognized as a tax-exempt organization under Section 501(c)(3) of the Internal Revenue Code, expressly disclaims any and all liability for the content, accuracy, legality, completeness, or reliability of information contained on external websites linked from this page.
Access to and use of any third-party website is undertaken at the sole risk and discretion of the user. Under no circumstances shall the Sin City Repeater Group, Inc., its officers, directors, members, affiliates, or contributors be held liable for any direct, indirect, incidental, consequential, special, or punitive damages, or any loss of data, revenue, or business opportunity, arising out of or in connection with the use of, reliance upon, or inability to use any external links or referenced resources.
The inclusion of any link does not constitute or imply endorsement, sponsorship, affiliation, or recommendation by the Sin City Repeater Group, Inc., unless such relationship is expressly stated. External sites are governed by their own terms of use, privacy policies, and operational practices, for which the Sin City Repeater Group, Inc. assumes no responsibility.
Users are strongly encouraged to independently evaluate all external information and to exercise appropriate judgment when interacting with third-party content, services, or organizations.