assigned to the su 14 for despreading the side channel and also the user 39 s signal the su controller 14d is also responsible for executing one or more of the synchronization methods in accordance with this invention in cooperation with the rbu controller 12e the su 14 also includes a spreading circuit 14e for spreading a signal such as the side channel signal and a transmitter 14f for transmitting the ds cdma signal on the rl to the rbu 12 for the presently preferred embodiments of this invention the antennas 12b and 14a have a line of sight relationship the sus 14 are fixed in location with respect to the rbu 12 and the antennas 12b and 14a are boresighted during installation of the su 14 however and as will be discussed below the teachings of this invention are not limited to only this particular presently preferred arrangement the ensuing description assumes a ds signal a t with code symbol duration t s multiplied by a spreading sequence c t with chip duration t c and a null to null bandwidth w c 2 t c by example there may be m u2266 30 active users sus 14 in the cdma communication system 10 each of which receives coded information symbols from the rbu 12 with an assigned length of p 32 code all of the.