Tips on analog tape mechanics and VU meters
The mechanics of analog tape and the value of VU meters.
Tips on bench power, old laptops, and module rapair
How to use a bench power supply, refurbishing an old laptop for EAS and fixing a module from a console you don't have.
Tech tips on labels and test jigs
Proper labeling makes the job easier. John Landry explores several options in lbeling just about anything.
Tech tips on small tools, magnetics, and more
Tips, tricks, hints and more. Tech Tips is a new feature to help you get the job done.
Reporting a Tower Light Outage to the FAA
When a tower is not properly lit because of a light outage, the tower owner is required to notify the FAA. Here's how you do it.
Javascript Clock
Insert this Javascript code into your Web page to display the computer's time and date in a form that follows the mouse.
Time Calculations with a Calculator
Adding and substracting time isn't difficult if you know the secret. No special calculator is required.
AM Radial Sniffer
Find copper radials in an AM antenna system with a field-intensity meter. These tips show you how.
Passive Audio Attenuators
Learn to design T and H pads or use our handy calculator.
RF Resources Online
Online converters, tables and charts for radio broadcasting.
Resistor Color Codes
A convenient color-code chart to determine a resistor's value.
DTMF Information and Examples
Dual tone multi-frequency tones are used for telephony and many remote control applications. This page covers the basics of the DTMF standard and provides playable audio samples.
DTMF Information and Examples
Dual tone multi-frequency tones are used for telephony and many remote control applications. This page covers the basics of the DTMF standard and provides playable audio samples.
SWR Calculator
A Java applet that calculates SWR based on the specified forward and reflected power levels.
SWR Calculator
A Java applet that calculates SWR based on the specified forward and reflected power levels.
Determine AM Modulation with an Oscilloscope
Use an oscilloscope to determine the modulation of an AM transmitter.
Determine AM Modulation with an Oscilloscope
Use an oscilloscope to determine the modulation of an AM transmitter.
Tower Light Alarm Circuit
This pseudo-binary circuit allows a single remote-control telemetry channel to indicate several variations on circuit status.
Starguide Relay Logger
A utility to help diagnose contact closure and configuration errors for a Starguide broadcast satellite receiver. ZIP file.
StarGuide Relay Logger
A utility to help diagnose contact closure and configuration errors for a StarGuide broadcast satellite receiver. ZIP file.
FCC ID Number Lookup
Identify computer cards and other electronic components by their FCC ID number.
FCC ID Number Lookup
Identify computer cards and other electronic components by their FCC ID number.
Tower Light Flasher Failure Alarm
A simple interface and flash-failure circuit to interface to a station's remote control.
SCA Primer for Broadcasters (2002 edition)
FM subcarrier services can be source of revenue for an FM station. They can also be a source of aggravation if not maintained properly.
Electrical Concepts and Practices - a Primer
A collection of articles from Radio magazine's sister publication EC&M.
