On this page, you’ll find a number of resources to help you find out more about the HD Radio™ power increase from both an industry perspective as well as how to upgrade existing Nautel FM products.
This power increase applies to FM stations only. With the exception of a few “Super B or Super C” stations, everyone is eligible to upgrade to -14 dB from -20 dB. The FCC requires notification or in the case of an increase beyond -14 dB, a simple application.
If interference issues prevent the use of increased IBOC injection levels on both sidebands, broadcasters now have the option to increase only one sideband while leaving the other at levels that do not cause interference with adjacent stations, and still achieve maximum coverage of their digital signal.
Nautel includes its award-winning asymmetrical HD Radio transmission capability FREE with all new HD equipped versions of its transmitters. Please note that FCC approval is required for asymmetrical transmission.
-14/-10dB for Existing Nautel Customers
All NV Series FM transmitters currently shipping contain software to permit operation at elevated sideband power levels (subject to the transmitter’s de-rating chart). For stations which have yet to upgrade, this page may be helpful in planning for the correct size transmitter to meet your goals.
For transmitters shipped before August 1, 2009, contact customer service for instructions on a minor, free hardware modification and make sure software V2.7 is installed. For transmitters shipped after August 1, 2009, verify that software V2.7 is installed and sideband power may be raised (In all cases verify maximum power limits before increasing your transmitter power).