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ATLANTIC SATELLITE CORPORATION
MODEL ASC300LW
BEACON RECEIVER
3
Model ASC300LW
Beacon Receiver
1.0 Functional Description
The
Model ASC300LW Beacon Receiver
is a high performance unit that is
designed to real time track the power density of a satellite beacon and output a
DC voltage that is linearly proportional to the beacon power. The applications for
the
ASC300LW
are for antenna step track controlling and uplink power control
systems.
2.0 System Specifications:
Input Frequency ........................................................................................930 to 2300 MHz
Pre-detection Bandwidth........................................................................................... 50 kHz
Input Level .......................................................... -90 dBm, minimum; -30 dBm, maximum
For full tracking range capability
Frequency Tuning ............................................................................................10 kHz Steps
Frequency Adjust ...........................................................................Front Panel or Remotely
AFC
(1)
..................................................................................................................+ 23 kHz
Threshold .................................................................................... <45 dB-Hz for acquisition
Input Impedance ......................................................................................................75 Ohm
Input Connector ............................................Type F female STD (N-type female optional)
Output Impedance............................................................................100 Ohm, single ended
Output Connector...............................................................Terminal plug and BNC Female
Tracking Response........................................ 0 to +10 VDC for a 20 dB input level change
System Level Adjust .......................................................................0 to 60 dB, 0.5 dB steps
Frequency Stability .............................................................................................. + 1.0 ppm
Frequency Reference ...............................................................................10 MHz (Internal)
Phase Noise....................................................................... > 75 dB-Hz, 1 kHz from Carrier
Alarms...................................................................................................................Unit Lock
Alarm Relay ............................................................................................................. Form-C
LNB Voltage..................................... +18VDC, Switchable from rear panel, 300 ma, max.
M & C ....................................................... RS-232 or RS-485, Switchable, from rear panel
M & C Connector .......................................................................................... DB-9, Female
Streaming .....................................................................................DB-9, Female,
(optional)
Ethernet Interface...............................................................................RJ-45 Jack
(optional)
2.1 Physical Characteristics:
Size ............................................................................................. 1.75 “H X 16”D X 19”W
Weight............................................................................................................ 8 lb. (3.63 kg)
Primary Power .......................................................................90-264VAC 47 – 63Hz, 1.4A
2.2 Environmental Specifications:
Tested in accordance with MIL-STD-2164
Operating Temperature .....................................................................................0
0
c to +50
0
c
Storage Temperature ..................................................................................... -40
0
c to +70
0
c
Humidity .....................................................................................................95% RH@ 40
0
c
