D/Line Radio Blog

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TTL for Now

It’s always the little things that get you in technology. I’ve seen instances of stations taken off air by a simple fuse blowing. You also wouldn’t believe the level of embarrassment that can come...

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SIP-ing Through the Firewall

Here’s an odd puzzle for you. Fire up a SIP soft-phone and connect it to an external provider. Dial a number and you can make a call successfully. Doesn’t sound particularly unusual. Now fire...

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Sound to Light Christmas

Pop into most radio stations and you’ll soon see Christmas decorations going up in the offices and studios. In most cases, it’ll be some lights, tinsel and maybe even the odd electronic reindeer in...

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Shared Nothing Hyper-V Infrastructure

The “standard” way to build a VM farm involves centralised storage, usually some form of SAN, with a number of compute nodes. The result is an infrastructure that looks something like this:   I’ll admit...

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WDS for Windows and Linux

Where I work is very much a Windows shop. Well, there’s also almost 2000 OS X laptops to worry about. However, most of the infrastructure we operate is built around Windows. Active Directory provides...

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Playing the Music You Want to Hear

I once heard someone say that there are two things in volunteer radio stations that can cause big arguments – jingles and music. While I do believe that’s somewhat unfair, experience tells me music...

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Calling in the Foreman

For what feels like a really long time now, configuration management systems such as Puppet have been the norm. Even in a small charity I do work for I’ve had it deployed for managing...

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Low Power DAB Multiplex

In case you’ve not noticed, we recently saw the first trial low power DAB multiplex launch in Brighton. It’s part of a nine month technical trial covering three possible technical options. The first of...

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Getting the Right Sound

You’ve just gone out and bought a shiny new audio processor for your radio station. It may have every feature under the sun, but you’ll still need the same techniques and knowledge used on...

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Patch Management in the Linux World

At one radio station I volunteer for, we’re mainly a Linux shop. Rivendell provide playout, Icecast streams the audio and it’s Debian on the desktop. With the small number of systems involved, keeping them...