Amateur Radio Station NK7W

Penrose Colorado Grid Square: DM78ln

Online since 2006

CQ DE NK7W : -.-. --.- / -.. . / -. -.- --... .--
Now Available:
When the World Stopped Listening: A Radio Mystery
Written by NK7W — Based on real amateur radio experience
Read the full details and order your copy


Click the ▶ play button for Morse code (9 seconds)

Welcome to the NK7W website. This site includes amateur radio operating information, station resources, propagation tools, and links useful to radio operators. It is being expanded to include station equipment reviews, with new and updated material posted on the Operations page as it becomes available.

Amateur Radio Tools

QRZ callsign lookup:
Callsign lookups provided by qrz.com
Enter your callsign to see if you have an eQSL waiting!

eQSL Search box
eQSL Banner

Visit NK7W's Rebel Ranch Corporation. It has links to his other corporate websites; Rebel Ranch Publishing, Rebel Ranch, and My Animal Registry.


Flightradar24

I provide aircraft tracking information to Flightradar24, with an ADS-B/Mode S receiver tuned to 1090 MHz. This receiver sends the data received from each aircraft in range, to Flightradar24 via my internet connection.

Live Air Traffic 24 hours a day. This shows exactly where aircraft are in flight and can be scrolled to show any area worldwide. All aircraft are shown in their exact position (you can see them moving on the screen), except those tracked by the FAA Radar. The FAA data is delayed five to ten minutes (according to their rules) and is designated as Radar T-F5M in the left panel after you click on the aircraft. The left panel also shows information on the aircraft and flight.


Live APRS Activity

Live APRS activity in the Penrose, CO area.

An excellent site to track anyone actively running APRS anywhere in the world is aprs.fi. Enter the call sign of the station you want to track, and it will show you that station and others in the area, including moving targets.

NK7W APRS: Occasional mobile operation

I use APRS occasionally while traveling in my truck. I'm not as active as I used to be, and it's not on continuously.


Propagation and Solar Information

Solar-Terrestrial Data
Solar Terrestrial Data

Hourly Area Prediction (HAP) Chart
Centered on Boulder, Colorado

HAP Chart centered on Boulder, Colorado

Gray-line Map

Gray-Line Map