This document is a declaration letter from Xiamen Radtel Electronics Co., Ltd, affirming compliance with the requirements of FCC §15.121. The letter states that the scanning receiver, identified by FCC ID 2AZSA-RT493, is designed to prevent operation within the frequency bands allocated to the Cellular Radiotelephone Service. This includes measures to prevent users from altering the device to operate within these restricted bands.
Specifically, the letter details that the device cannot be modified by clipping leads, installing simple components, replacing semiconductor chips, or using special access codes or external devices. It also confirms that the device is incapable of converting digital cellular communication transmissions to analog voice audio. The tuning, control, and filtering circuitry are designed to be inaccessible, and any attempts to modify the equipment will render it inoperable. The receiver rejects signals from the Cellular Radiotelephone Service frequency bands that are 38 dB or lower based upon a 12 dB SINAD measurement.
The letter emphasizes that any modification of the device to receive transmissions from Cellular Radiotelephone Service frequency bands will be considered manufacturing of such equipment, voiding the original unit's certification.
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Specifically, the letter details that the device cannot be modified by clipping leads, installing simple components, replacing semiconductor chips, or using special access codes or external devices. It also confirms that the device is incapable of converting digital cellular communication transmissions to analog voice audio. The tuning, control, and filtering circuitry are designed to be inaccessible, and any attempts to modify the equipment will render it inoperable. The receiver rejects signals from the Cellular Radiotelephone Service frequency bands that are 38 dB or lower based upon a 12 dB SINAD measurement.
The letter emphasizes that any modification of the device to receive transmissions from Cellular Radiotelephone Service frequency bands will be considered manufacturing of such equipment, voiding the original unit's certification.
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