How to Read a Microphone Frequency Response Chart

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As you certainly know, the FCC is reorganizing the spectrum used by wireless microphones and in-ear monitors. Systems that operate in the 700 MHz band (698 – 806 MHz) need to be retuned or replaced before wireless carriers and Public Safety agencies start using this spectrum in late 2009.

Here are some helpful tips:

1. Check your gear for the 3 Ms:
Manufacturer, Model, and Megahertz. Be sure to include frequency-specific accessories such as antenna distribution units, antennas, and more. Consult the manufacturer for advice on how each product and frequency range will be affected by changes in spectrum availability.

2. Find out which local TV channels are unoccupied.
Note that some analog stations have stayed on the air beyond the June 12 DTV transition date. Visit www.shure.com/frequency for info about the channels in your area.

3. Scan the RF spectrum to find out what other signals are present in your venue.
Use an RF scanner that attaches to your laptop, or hire a pro to do a complete spectrum scan and come up with a frequency plan that includes your wireless mics, in-ear monitors, intercom systems, and more.

4. Replace equipment in the 700 MHz band (698 – 806 MHz) with new systems that operate between 470 and 698 MHz. Take advantage of rebates and incentives being offered by major wireless manufacturers. For details on the Shure rebate, visit www.shure.com/rebate.

5. Stay tuned for more information. The introduction of new TV Band Devices in the "white spaces" in the lower part of the UHF TV band is still being debated. To keep up with the latest developments, check out  www.shure.com/whitespaces.

For more wireless tips, visit www.shure.com/articles