AWMT
15
4.3.1 IF
TO
L-B
AND
U
P
-C
ONVERTER
M
ODULE
The
IF/L-Band Up-Converter Module
converts and amplifies the incoming IF carrier into
L-Band carrier.
Incorporated into the module is an attenuator with a 20-dB adjustable range. The attenuator is
used to adjust transmit (Tx) gain of the AWMT.
The synthesiser within the module contains an out of lock protection circuitry that prevents the
L-Band carrier from shifting in frequency. When the oscillator is not phase-locked with the
10 MHz reference, an Alarm signal is sent to the main controller board and the up-converter
module will mute automatically.
The operating frequency for the synthesiser and the attenuation are externally controlled by a
serial signal from the main controller board. The transmitting frequency is adjustable in
1 MHz steps.
4.3.2 L-B
AND TO
RF U
P
-C
ONVERTER
M
ODULE
The
L/RF Up-Converter Module
converts and amplifies the incoming L-Band carrier into the
desired RF-Band carrier.
The synthesiser within the module contains an out of lock protection circuitry that prevents the
L-Band carrier from shifting in frequency. When the oscillator is not phase-locked with the
10 MHz reference, an Alarm signal is sent to the main controller board and the up-converter
module will mute automatically.
4.3.3 L-B
AND TO
IF D
OWN
-C
ONVERTER
M
ODULE
The
L/IF-Band Down-Converter Module
converts and amplifies the incoming RF signals into
the desired IF frequency range.
Similarly as for the up-converter modules, a 10 MHz high stability reference signal is used to
phase-lock an internal synthesiser.
The operating frequency for the synthesiser and the input attenuation are externally controlled in
the same manner as for the IF/L-Band Up-converter module. The receive (Rx) frequency is
adjustable in 1 MHz steps.
The out of lock protection circuitry within the synthesiser functions similarly as for the
IF/L-Band Up-Converter Module.
The L/IF module pr12 VDC and the 10 MHz reference to the LNB
Summary of Contents for AWMT
Page 1: ...INSTALLATION AND OPERATIONS MANUAL HUB MOUNT SOLID STATE TRANSCEIVERS AWMT PM AWMT REV 22...
Page 13: ...AWMT 12 Figure 1 Product Outline C Band...
Page 14: ...AWMT 13 Figure 2 Product Outline Ku Band...
Page 35: ...AWMT 34 Figure 6 RS 232 Terminal Mode Display...
Page 37: ...AWMT 36 Figure 7 List of commands after pressing h Help in Terminal Mode Display...
Page 52: ...AWMT 51 Figure 8 Product Outline C Band 250W DC Line 48 V Unit...
Page 53: ...AWMT 52 Figure 9 Connector Layout C Band 250W DC Line 48 V Unit...
Page 54: ...AWMT 53 Figure 10 Product Outline Ku Band Low Power...
Page 55: ...AWMT 54 Figure 11 Typical Connector Layout Ku Band Low Power...
Page 56: ...AWMT 55 Figure 12 Product Outline Redundant System Ku Band Low Power...
Page 57: ...AWMT 56 Figure 13 Product Outline Side View Redundant System Ku Band Low Power...
Page 58: ...AWMT 57 Figure 14 Mounting of a Low Power Transceiver on Feed Support...
Page 59: ...AWMT 58 Figure 15 Outline Drawing of C Band Light Weight 60W C Band Transceiver...
Page 60: ...AWMT 59 Figure 16 Connectors of Light Weight 60W C Band Transceiver...
Page 61: ...AWMT 60 Figure 17 Outline Drawing of C Band 10W C Band Transceiver...
Page 62: ...AWMT 61 Figure 18 Connectors of 10W C Band Transceiver...
Page 63: ...AWMT 62 Figure 19 Proposed GUI for RS 485 Communication transceiver single unit...
Page 64: ...AWMT 63 Figure 20 RS 232 Terminal Mode Display for Redundant System...
Page 65: ...AWMT 64 Figure 21 Proposed GUI for RS 485 Communication transceiver redundant system...