Cooling Tower and HVAC Maintenance at Tower site.

Its that time on year to spray down and clean the outside "coils" on transmitter and building cooling units. Also chain filter and belts (even before they break). We have water on site and spray clean the cooling coils. I have seen HVAC carry in water to do this.

Harris Sigma DTV Transmitter fiber cables.

The Problem: "The Harris Sigma IPA has shut down a few times with no faults on transmitter or in logs. The green lights go out for power and IPA, sometimes the IPA voltage light is finicky, though its on now. If I goto standby and back. It resets to normal. I replaced an IPA power supply … Continue reading Harris Sigma DTV Transmitter fiber cables.

Harris Sigma DTV Transmitter GUI computer – Build your own.

The GUI is a transmitter monitoring computer inside the Sigma transmitter. The touch screen failed (the video) so I built another computer for the job. Items needed. Windows 2000 computer with LPT port and 2 com ports - com 2 and com 3- all setup and tested in advance before installing GUI software the ports. … Continue reading Harris Sigma DTV Transmitter GUI computer – Build your own.