Measurements & Re-Certification

It has been many years since the FCC deregulated and eliminated the requirement for most periodic measurements.  Gone are monthly frequency measurements and annual audio proofs.

Now, “Proofs” mostly refer to RF measurements.  Most are one-time others are annual.  Nearly all however require test equipment most stations do not have on hand such as a spectrum analyzer.

When a new transmitter is installed, a RF proof measures for occupied bandwidth and harmonic attenuation.  For FM stations this is a one time process.

AM stations have the same requirement for new transmitters, but also must be repeated on an annual basis.  These are known as the NRSC measurements and are required to show the AM station meets the bandwidth limits of the NRSC standards.

While only required on an as-need basis, many stations do not check their frequencies on a regular basis.

IBOC HD Radio:

Here are a whole new set of measurements.  When first installed FM stations must test to meet the occupied bandwidth, but also have minimal spectral regrowth.  For AM stations it is the same, but this must be repeated annually with the NRSC measurements.

HD Radio Re-certification:

While required for AM, those annual tests should be conducted on FM stations operating in HD  as well.  Are you HD on FM?  Are you still in compliance with all of the requirements?

We have the experience, tools and test equipment to do the measurements and provide a full report of the results.  All measurements are made by a SBE Certified Engineer.

Call for more information on how Sierra Multimedia can help with

your Measurement Needs