Rev. 2.0
7005STC-O3B Series
DES007565
_____________________________________________________________________________________
4
1. INTRODUCTION
1.1
OVERVIEW
7005STC-O3B-A and 7005STC-O3B-B are highly reliable and innovative Block Up-converters (BUC)
specially designed for O3B satellite communication uplink system. This equipment converts the IF
signal (7005STC-O3B-A:1052-1788 MHz, 7005STC-O3B-B: 972-1871 MHz) to RF signal (7005STC-
O3B-A: 27.652-28.388 GHz, 7005STC-O3B-B: 28.172-29.071 GHz) with maximum linear output
power of 35dBm and saturated output power of 37dBm.
This manual provides the instructions necessary for operation and maintenance of 7005STC-O3B-A
and 7005STC-O3B-B. All user interfaces present in the BUC, as well as an exact description of the
diverse signals in the connectors of the BUC, will be described in this document. This manual also
explains the RS-232 and Ethernet communication interfaces for 7005STC-O3B-A and 7005STC-
O3B-B.
1.2
GENERAL DESCRIPTION
7005STC-O3B-A and 7005STC-O3B-B are comprised of IF, LO, Up-Converter, SSPA, and DC M&C as
shown Fig. 1.
IF Unit
Converter Unit
SSPA Unit
DC M&C Unit
Figure 1. Functional Block Diagram of Ka-band 5W BUC
DC/DC Converter
M&C Processor
Filte
r
Filter
Filte
r
1
st
LO
LO
Unit
2
nd
LO