Cure for Lost Headphones 

Recycle an old vending machine to keep the jocks happy.

111C Coils: A Golden Find 

These former mainstays of telephone circuits are audio gold.

Fixed Cellular Terminals at Remote Sites 

As anyone who has tried to use a cellphone at a mountain top site knows, often coverage is spotty. Some rural transmitter sites are so rural they can't support a reliable connection to the PSTN.

Installing a Directional Antenna 

Before the day the riggers are on the tower looking down at you expecting an answer, consider just how to set a bearing angle in the field.

Using the ULS Database 

The ULS is one of those websites that has way more information than you'll ever need; here's how to make sense of it all.

Transmission Line Pressure Monitoring 

Dehydrators and nitrogen are the common gas sources, but are you absolutely sure of the line pressure and supply pressure?

New Options for Remotes 

Need a wireless IP link at a remote site? Here are some ideas to try.

Part 2: Maximizing LAN Bridge Data Rates 

The slowest link in the chain determines the overall data rate, but there are some tricks you can use to speed transfers.

Part One: The Machine Goes "Ping" 

Check the speed of your Ethernet connection with Doug Irwin.

Time-aligned HD Radio 

Having trouble with the analog/digital time alignment on your Harris HD Radio Exporter? Maybe this will help.

More power to you 

An intermittent audio dropout is a real head-scratcher -- until the common pieces are put together.

No Escape from the Planet of the Apps 

More useful radio engineering apps for your iPhone.

There's an App For That 

While many apps are toys or nifty gadgets, there are some that are practical in radio engineering. Here are some that have been suggested by readers.

Keeping Racks Cool 

Equipment cooling in a rack room should is an important consideration in the room design. But the HVAC is not the only item to consider.

More on Portable Lighting 

Ideas to shed light on your work.

Remote Equipment Reset 

Michael Bradford needed a better way to reboot the codecs without driving 45 miles.

Wall-wart Plugs 

The Furman PlugLock has metal brackets that are adjustable for various size wall-warts and allows them to be securely clamped in place.

Unusual Parts Source: Outdoors Store 

By looking in some unusual places you might find better and less expensive alternatives to tools or parts. One possible source is a camping or outdoor store.

Cell phone remotes 

This home-made interface splits the mini jack from the phone into an XLR connector for a mic and a headphone jack.

Plug Before You Crimp 

Installing RJ-45 connectors can be a pain, but not if you use connectors that simplify their installation.

Analog testing 

Ed Treese shares some notes on his favorite piece of analog test equipment: a pair of headphones.

Taking Pictures 

A digital camera can be a valuable tool in your toolbox. Even the camera on a cell phone is better than nothing, but higher resolution cameras can be helpful as well.

Satellite Critter Control 

Need to keep insects out of the satellite antenna feed horn? A piece of Mylar screen material and a large diameter, stainless-steel hose clamp may be your answer.

Rack Equipment Protection 

Most rack covers block access to the equipment. This station needed to protect the exposed face, but maintain full access. See how a back-of-the-rack device found a new home in the front of the rack.

Home-brew Dehydrator Upgrade 

Coaxial transmission line and antenna pressurization are critically important. Mike Kernen needed to repair his dehydrator system on a budget. He devised a system with greater capacity at half the cost of a new system.

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