D/Line Radio Blog

A simple hub and spoke sample network.

Who’s using my bandwidth?

It’s one of those questions you often don’t think about until you start running into problems. You’re hitting the bandwidth limit of some link but not sure what to blame it on. The pretty...

Tieline Commander G3

OpenSIPs in the DMZ

You’ve got your brand new broadcast IP codec. A pair of them really, one inside the network and the other outside. How do you make them talk to each other? Admittedly, it could be...

Apple Macintosh

Thunderstrike (Na Na Na Na)

It almost sounds like something out of a movie: the evil villain quietly drops into the conference room and replaces the DisplayPort to VGA adapter with an evil one. Ok, I’ll admit, it’s not the...

Cisco Router as a PPTP VPN Server

Cisco Router as a PPTP VPN Server

It’s not often that I end up writing things about networks. Especially as my network credentials only stretch as far as a Computer Science degree and a CCENT. However, I thought it might be...

Underside of the Forth Rail Bridge

Logging Output with LiquidSoap

In ye olden days, logging of station output used to occasionally involve a stack of VCRs, long play tapes and presenters tasked with swapping out tapes. Nowadays, everything is done on a computer. It...

Overkill MIC Live Lamp

Overkill MIC Live Lamp

We’re all used to seeing those Canford boxes, Sonifed LED bars or even an incandescent lightbulb painted red. Turns out you can get a lot more complicated than that. It’s possible to combine a...

Deviation Meter

Two Processors One FM Service

It’s something you’re always advised against. Having two processors on a single transmission chain can result in the two of them “fighting” if you don’t know exactly what you’re doing. That said, even one...

Raspberry Pi STL in a Box

I promised more details in the future about the Raspberry Pi STL build. Well, against all odds, I’m going to deliver! The project exists purely to solve a problem with getting audio between two...