Most Popular Articles
Lower your station's overhead by reducing power bills.
Harris offers two MDCL methodologies. The first is what it calls ACC (adaptive carrier control) and also AMC. ACC reduces the carrier level in -1dB steps (from -1 to -6dB) when the necessary modulation level is low. (See Figure 3.) AMC works as described earlier, reducing the overall output power by -3dB at 100 percent modulation (see Figure 4). According to their website, MDCL can be retrofitted in to the DX, DAX, and 3DX transmitters already in the field by the installation of a modification kit. New transmitters can be delivered with MDCL capability ready to go from the outset.
Nautel offers DCC, DAM or AMC in its AM transmitter line. The NX Series transmitters have DCC and AMC capability included as a standard feature; the user needs to turn it on. Additionally, according to information on the website, older Nautel transmitters can be retrofitted with MDCL with the addition of an NX-series DSB board that lives in a 1RU chassis. Carrier and audio levels are then sent from this chassis in to the older transmitter in order to make MDCL work.
- continued on page 4
Acceptable Use Policy blog comments powered by Disqus
[an error occurred while processing this directive]
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
Read each issue online in our Digital Edition Format in your Web browser.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
When building its new broadcast production vehicle, MRN applied lessons learned from the past.
Browse Back Issues[an error occurred while processing this directive]
Also in the April Issue
- Update on Transmitters
- On-air Missteps to Avoid
- Tower Lease Renegotiation
- New Products
- Applied Technology: Streaming with the MPEG HE-AAC Audio Codec
- Side by Side: Studio Furniture
- Practical Use: Circulators and Isolators