Operator's Manual

Installation of the CDR812 CI Wireless Inc.
MirrorCell Select CDR812 Manual
7-10
Rev. X1
SET ATD X YY N MM<enter>
X = Channel 1 within the repeater
YY = Downlink attenuation level for channel 1
N = Channel 2 within the repeater
MM = downlink attenuation level for channel 2.
SET ATD 1 10 2 10<enter>
sets the forward path attenuation level for the repeater’s channels 1 and 2 to 10dB.
Thus, the repeater’s forward path gain will be 85dB – 10dB = 75dB.
Note: Although the attenuation values for forward and reverse can be set differently,
path imbalances may occur when doing so.
Note: In order to transmit the lowest needed power, the initial setup attenuation
should be set for maximum (30dB). Then, attenuation levels can be reduced until the
desired output power is achieved. This reverse attenuation should then be set equal
to the forward attenuation to maintain path balance.
10. Set the peak levels at which the repeater should transmit in the uplink (reverse) and
downlink (forward) directions. Forward peak levels for the standard repeater are
34dBm, 37dBm, and 40dBm. Reverse peak levels for the standard repeaters are
21dBm, 24dBm, and 27dBm. Note that due to low output power from the mobile,
reverse path power rarely exceeds 20dBm.
To set the peak level in the reverse path:
SET LVU X YY N MM<enter>
X = Repeater’s channel 1
YY = Reverse maximum transmit level for channel 1
N = Repeater’s channel 2
MM = Reverse maximum transmit level for channel 2.
SET LVU 1 27 2 27<enter>
To set the peak level in the forward path:
SET LVD X YY N MM <enter>
X = Repeater’s channel 1