User Manual

SPRINT User Manual
WIMAX 30dBm
8
2.2.3 Uplink Path
GRS-2630D-SPR is basically designed to select 33MHz operational bandwidth from entire BRS
bandwidth (188MHz). Repeater would smartly select actual Sprint operational bandwidth such as
2502~2568MHz (ABCD), 2624~2690MHz (EFHG) using local frequency without interfering into
in-band.
To discriminate Tx / Rx circuit, GRS-2624D-SPR is implemented Bias, including LNA and HPA to
functionate Switching operation. In the LNA, SPDT switch is implemented not only to improve
Tx/Rx separation, but to protect Rx circuits, when antenna is open.
GRS-2624D-SPR Downlink, Uplink Converter Module’s Gain is 20dB for both paths
<Pic.5> WIMAX 30dBm RF Repeater Uplink Block Diagram