This link will make sure you never miss an Amateur Radio Contest: WA7BNM Contest Calendar
DIGITAL LIBRARY OF AMATEUR RADIO AND COMMUNICATIONS
LEARN TO PASS ARRL RADIOGRAMS
ATEN has been operating daily since the beginning. There have been times when the net was very busy handling traffic. The net meets each day practicing the passing of formal written Radiogram Traffic messages into and out of our coverage area. We have a great bunch of people that make up the Net. We practice every day for that emergency which we hope never comes. Visit https://www.atenaz.net/ for more information or listen in on 3986 kHz at 5:30 PM MST or 0030Z daily October 15 through April 14 or 7:00 PM MST or 0200Z April 15 Through October 14.
How to be a ham radio operator during public service events and nets
DAILY PROPAGATION NET
There is a rather informal Activity Group that meets on-Air daily. This is an awesome resource for testing out new gear, especially antennas and microphones.
The idea is to check-in so they get you on a list. Then each station is called to make a CQ call and all the other stations, that hear it, will respond with a signal report. Every ten minutes they do an ID call so it is a chance to jump in if you are late to the party.
The daily schedule is:
- 17 Meters: On or about 18.1575 MHz starting at 17:30 UTC for approx. 1 hour
- 15 Meters: On or about 21.383 MHz starting at 18:30 UTC for about 30 minutes. If You hear Roger (ZL1XR) in New Zealand, sometimes he sticks around for QSOs afterward.
- 12 Meters (if conditions allow): On or about 24.970 MHz for up-to 30 minutes. Then, if conditions are really good,…
- 10 Meters: On or about 28.420 MHz for as long as necessary.
Visit https://hfqso.com/ for more info.
CURRENT PROPAGATION MAP
SOME HAM TOOLS AND INTERESTING LINKS
- Check current propagation on CW Beacons around the world in just a few minutes using only 5 frequencies: https://www.ncdxf.org/beacon/index.html#Schedule
- The Minow Net: A Club for YL Ham Radio Operators https://www.minownet.org/index.html
- Ham Radio Map. Enter a call sign to see where they are. https://haminfo.tetranz.com/map
- 2 Meter ladder line calculator
Winlink is a digital radio communications system that allows amateur radio operators to send and receive electronic mail (e-mail) and attachments without having a direct connection to the Internet. Winlink is a store and forward messaging system. Being able to send and receive e-mail without an internet connection is especially valuable during times of commercial communication outages.
Ever wonder where WinLink came from? Here is the definitive PDF that explains its origins and and the basis for how it works (still). https://n7tar.org/wp-content/uploads/2022/09/Radio_Only_Winlink.pdf
NOTE: The section about Message Pickup Stations (MPS) is outdated. This is all automatic between the message repositories now.
ABOUT DMR (Digital Mobile Radio)
End Fed Half Wave Antennas (EFHW)
Interest in the EFHW antenna has sky-rocketed over the last few years, and like many topics under the heading of antennas, accuracy of information can vary.
The following website(s) may help to clear up any questions or confusion about cores and winding ratios.
- From MM0OPX – Colin has a number of useful videos on the EFHW and how to test them
End Fed Half Wave Antenna presentation by Todd Longfellow, N7TWL. Given at 10 June 2023 meeting
Bob’s (KJ7ZTF) Inverted V Fan Dipole Wire Length Chart.
Cool Antenna Projects (submitted by KJ7ROX)
Useful Links for J-Pole Antennas (please report broken links)
- J-Pole Antenna
- How does it work? https://www.youtube.com/watch?v=GRJw3SCBGfA
- How to build/tune https://www.youtube.com/watch?v=IdbFqVwoV8s&t=536s
- Installing https://www.youtube.com/watch?v=iwyxwXgLQv0&t=59s
- How to feed https://www.youtube.com/watch?v=iVigUBSP9DE
- Unusual J-Pole https://www.youtube.com/watch?v=Pp3PsWz_vII
Antenna Installation Tips
Tape Measure Beam Optimized for Radio Direction Finding
All the information can be found here: https://n7tar.org/2022/06/12/tape-measure-beam-optimized-for-radio-direction-finding/ Submitted by Hal (KG5LVG)
MISCELLANEOUS LINKS & INFORMATION
Weather & Lightning Links – (Courtesy KG5LVG – Hal)
Build or Repair a Remote Antenna Switch:
Pat’s (KD6PZB) All-Star Node
Solar Powered 8 Watt Repeater (submitted by KJ7YYI)
Space Weather – https://n7tar.org/2022/01/03/space-weather-information/
Is Your Browser Leaking Information?
- Here’s a short video on where to test your browser to see what information it is giving away to websites: Video About Browser Privacy
- BrowserLeaks.com – Check your browser here
- Cover Your Tracks – …and here
- Device Info – …and here. Be sure to wait on this one
Linux Instead of Windows 11?
If you are considering Linux as an alternative to upgrading to Windows 11, here is a short video on an excellent Windows-like distro to try.
- Link to the website: https://linuxmint.com
- More Information on Linux distributions: https://distrowatch.com/
MATH FOR AMATEURS
The following series of videos demonstrates some math by using it in solving a practical problem.
- Vid01 – Determine the height of a tree for an antenna
- Vid02 – Another way to determine Tree Height
- Vid03 – Determine Vertex Angle of Inverted Vee
- Vid04 – Trig Review
- Converting Meters to Feet
- Calculating the cut for Half Wave Antenna
- Laws of Exponents – needed for decibels
- Decibels & Logs – very brief intro
- Using Powers of Ten and Scientific Notation
- International System of Units pdf Document
- Search on YouTube for N7TWL Presents ( https://www.youtube.com/channel/UClcgeaJe-wofYQxVnageT9A ) and see more math tutorials by N7TWL.
Website: https://nanovna.com/ The website has guides and links, including the Saver application
Rick’s (KJ7ROX) NanoVNA Guide – Revision 1
More NanoVNA documentation (not tested for quality or accuracy)
NanoVNA H2_English (1)
NanoVNA N4WYE Jan 21, 2020 v3
NanoVNA User Guide_20190527.
NanoVNA User Guide_20190711
PROGRAMMING HTs USING CHIRP
HANDY SCANNER FREQUENCIES
- Payson PD and FD – PD is moving to encrypted trunking, however, FD is staying as is
- ScannerFreqs just a few to get you started
SKYWARN – National Weather Service Information Page