U.S. Department of Homeland Security initiatives will lead to radio frequency interference (rfi) problems in some radio control switch installations.

1. You may soon encounter mysterious radio frequency interference (rfi) problems in both new and previously trouble-free switch installations.
2. These mysterious failures are likely to be the result of the use of Military radios and/or RFID (radio frequency identification) tags at frequencies and power levels not previously permitted (or utilized).
3. Interference at or near 390 MHz may occur in certain installations as the result of a Homeland Security initiative to install new high-power radio systems [390 MHz] at 125 Military Bases across the U.S.
4. Interference at or near 433 MHz may occur as a result of the Federal Communications Commission (FCC) adoption of a new rule [requested by the Department of Homeland Security] which permits radio frequency identification (RFID) devices in commercial shipping applications to transmit at higher power levels than ever before [at 433 MHz]. Additional rfi problems may also occur as a result of the new FCC rule increasing the maximum 433 MHz RFID signal transmission duration time from one second to sixty seconds.
5. ClearPath™ radio control switches from MS SEDCO operate at any of THREE field-selectable frequencies. This means if you encounter mysterious problems at one frequency, you simply select another frequency.
6. ClearPath™ is the only system that allows you the field-selectable choice of three separate frequencies—giving you what we like to call the Power of Three.
7. With any other system, the only solution to rfi problems is often complete and costly system replacement.
8. All ClearPath™ products are FCC licensed and compatible with the products of many other manufacturers.

www.dasma.com/PDF/Publications/TechDataSheets/OperatorElectronics/TDS374.pdf