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This page will contain helpful links for amateur radio. Initially, we’ll be adding links that are discussed or mentioned during the Elmer Net (Saturday, 7:00pm, 146.94 repeater). If the list grows too long, we’ll break it up into categories.

DISCLAIMER:  Inclusion of links on this page and site do not imply any endorsement or suitability for a particular purpose. Austin Amateur Radio Club provides these links only for convenience and informational purposes. It is your responsibility to exercise appropriate caution when visiting any website. We encourage you to use a virus scanner from a reputable vendor that also checks web pages for malicious pages and software.

Most Casual Observer Blog – Baofeng Handheld Transceivers(HT) and Spurious Radio Frequency(RF) Emissions
A Cautionary Tale for New Hams and Other Prospective Buyers –
Great site for solar weather information

CW Skimmer –
Multi-channel CW decoder and analyzer (mentioned on Elmer Net)

CW Decoder –
Decode or Transmit Morse code (mentioned on Elmer Net)

EZNEC Antenna Modeling –

VHF Propagation Map —
World-wide map showing actual radio propagation from stations operated near 144 MHz. Data is gathered by APRS-IS.

Remote Receiver —
Check your signal and listen to others on remote receivers.

Band Conditions —
Simple VU-meter style indication of band conditions.

WSPR (Weak Signal Propagation Reporter) —
The WSPR Network is a group of amateur radio operators using K1JT’s MEPT_JT digital mode to probe RF propagation conditions using very low power transmissions. Click “Map” on the top menu bar to see a visual depiction of current conditions.

Propagation Maps —
Yet another real-time propagation map – geared to VHF/UHF (28MHz-450+MHz). You can choose what band and mode.

Ham Radio Software (several) —
A good selection of software for transceiver control, logging, propagation, and more!

Logbook of the World (LOTW) —
Can’t send/receive QSL cards? There is an electronic option that a large number of hams use. If your QSO contact also uses LOTW, you’ll likely get confirmation pretty quickly!

“The Toroid King” —
Lots of useful information, including toroids, capacitors, magnet wire, and more!
Supplying Toroids, Electronic Parts and Kits to Engineers, Schools and Hobbyists

K0BG —
Mentioned in Lew’s (W5IFQ) presentation at the February 2019 AARC meeting.  A great resource for information.

VHF/UHF in a Prius —
Some basic information about installing a VHF/UHF rig in a Prius.

Lightning Safety —

Ham Radio Exams Online

Listed in no particular order. Some discussed on-the-air during Elmer Net. Others heard by word-of-mouth. Most are free. This isn’t an endorsement of any one in particular, so try them out and see which one you like! These are all online, browser-based exams.

ARRL Exam Review —
Free. Registration required. All levels. You do not need to be an ARRL member.

AA9PW Radio Exam Practice —
Free. Registration required. All levels. Custom tests are available for a fee.

Ham Radio Prep —
Paid. Registration required. Technician and/or General class only. —
Free. Registration optional to save preferences. All levels. Flash cards, Practice exams, Question pools. Ham Exams —
Free. No registration. All levels. Practice exams. Practice Amateur Radio Exams —
Free. Registration required. All levels. by Signal Stuff —
Free. Registration optional (to see your study history). All levels, including Canadian and French Canadian exams, as well as several other FCC elements (1, 3, 6, 7, 7R, 8, 9). Note: When you click Practice Test, it will ask you to login, but you can click “Continue as guest” to skip login.

RadioQTH Exams —
Free. Registration required for exams; review of questions/answers in study mode without registration. All levels.

Submitted by Our Readers and Friends of AARC

The following links were submitted by our readers and other friends of AARC.  Though not all are technical in nature, these links are germane to the field or spirit of Amateur Radio.

All About Circuits — An active and open electrical engineering online community that provides both interesting content and useful resources for electrical engineers and Amateur Radio Operators, especially the Education and Tools sections.

All About Electronics Circuits For Kids —  A car enthusiast site with a number of good links for kids of all ages to learn about basic electronics.

Amateur Radio and Emergency Communications — basic info with links for further reading. (Warning: The primary website is commercial in nature and is not amateur radio related.)

Ultimate Guide to Disaster Preparedness on a Budget — Some helpful ideas on preparing a disaster preparedness plan. (Warning: The primary website is commercial in nature and is not amateur radio related and is definitely not endorsed by AARC. This page on Disaster Preparedness, however, has some good info.)

Texas Ham Radio — — Offline as of 12/19/2020 / Unknown if it will return.
A new site by a Texas ham, KK5JIM. It is an always free forum site for licensees to exchange information, form private and public groups, discuss and announce events, and sell or trade ham gear. Check out the blog with many ham-related posts.


We make a reasonable effort to link only to sites that have acceptable Terms of Use and that meet acceptable standards for maintaining each individual’s right to privacy. AARC is not responsible for content on other sites linked from If you find a link to a site that has offensive content, please contact the editor (see email address on Contact page). Include the URL and details of the offensive content. We will review the site and remove the link at our discretion.

Please note that other sites that are not associated with AARC may have links leading to our site. AARC cannot control these links and we are not responsible for any content appearing on those sites. Since this website does not control the privacy policies of third parties, you are subject to the privacy practices of that third party. We encourage you to ask questions before you disclose any personal information to others.

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