The Metropolitan Police Department, in conjunction with other District of Columbia government agencies, the American Red Cross, AAA, and the Federal City React Council, have put into effect a citizen's band radio network that will be used to monitor the CB emergency channel, 9.

The network, which is part of the National Emergency Aid Radio Station, was made possible through a $5,000 grant from the National Highway Traffic Safety Administration.

Fifteen police vehicles and five police stations have been equipped with citizen's band radios and will monitor Channel 9 on a 24-hour-a-day basis. Mobile units have been placed throughout the city to eliminate areas of poor reception caused by either terrain or tall buildings.

The system is augmented by Federal City React members who monitor the emergency frequency from their homes. They will also operate the main monitoring station in the communications center on the fifth floor of D.C. , police headquarters.

Signs will be posted on major streets alerting CBers that the Metropolitan Police Department monitors Channel 9 with a station designation known as KDC-0911.

The network is the brainchild of police inspector Brian G. Traynor, a CB enthusiast himself, who esthusiast himself, who estimates that there are 100,000 other CBers in the city who could notify any of the receiving stations of emergencies such as a crime, an icy slick on a streets, or a fire. $

Chief of Police Burtell M. Jefferson called on all members of the community to help the police department by using the communications channel.

He said, "We have appealed to the cab industry to put these radios in their cabs so that if there is a holdup or if they are are in an isolated area and feel they are in trouble, they can just press the mike and any of the 20 listening posts will be notified that there is some problem and will be able to help."

Jefferson said about 2,000 of the 10,000 cab drivers in the city have a two-way radio. He added that a CB radio for $100 or less is cheaper than the $900 is costs to install a two-way radio.

He pointed out that most holdups of cab drivers take place in isolated areas where there are no telephones or help. With a CB radio, he said, help could respond within minutes CAPTION: Picture, District Police Chief Bertell Jefferson describes plans for emergency CB network. Map behind him shows the receiving locations.