User's Manual

2. Preliminary Decisions

AMPS EAC-2100 Manual: (Draft, 02/01) Page 2-17

2.5.6 Selecting Donor DTC Channels (Continued)

Identify the donor DTC RF channels with the following guidelines in mind:

• All DTC RF channels of the primary donor cell will be entered in the donor DTC RF

channel list. List 1 is recommended for the primary donor cell. Also recommended is that

the DVCC assigned to the donor also be assigned to the EAC-2100. However, a different

DVCC may be assigned to the EAC-2100 if desired.

• The DTC RF channels of neighboring cells should not be entered into the other donor DTC

RF channel lists unless the EAC-2100 donor antenna system has been configured for

primary and secondary donor operation.

• For a secondary donor cell site to be included in the donor DTC RF channel list, the signal

level at the booster from that secondary donor cell site must be balanced to approximately

the same as the primary donor (within the “hand-off” hysteresis window). If the antenna

installation is such that this criterion can not met for one of the neighboring cell sites, that

cell's DTC RF channels should not be entered in the list. An alternative is to widen the

handoff hysteresis at the primary and the secondary donor cells to allow operation with

different signal levels to these donor cells.

2.5.6 Selecting Boosted DTC Channels

You must select channels for the boosted DTC RF channels. Note that the number of boosted

DTC RF channels may be smaller than the number of RF channels on the donor DTC channel

lists. For example, the primary donor cell may have six RF channels (1 DCCH & 5 DTC, 17

DTC channels total), and the EAC-2100 may have four RF channels (one DCCH and 3 DTC, a

maximum of 11 DTC channels).

Select an unused channel for each channel of equipment that is installed in the EAC-2100,

according to the following guidelines:

• Select the boosted DTC RF channels in the same manner as for a cell site. They must

conform to the frequency plan in place for the area.

• Consider channel reuse in the system when assigning the boosted DCCH and DTC RF

channels.

• Be sure there is at least a 90 kHz separation between any boosted and any donor RF

channel.