Phone Radio Interference Filter RF1400

The Telephone Radio Interference Filter (RF1400) is designed to reduce radio frequency interference which may be picked up from the AM radio band and transmitted to the receiver of a telephone.

It will also help eliminate some interference from other radio sources, such as FM, Ham and Citizen Bands. This filter may also be effective in reducing incidental RF noise which could be introduced into a computer modem.

RF1400 Works with single line phones only. Not intended to prevent crosstalk.

NOTE: Works with STANDARD ANALOG phone service only. Will NOT WORK with digital, satellite and VOIP phone services.