Codan C-Band & Ku-Band IF
Transceiver Systems
HiSeasNet Training Course
IP telephony
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C-Band & Ku-Band Transceiver Systems
Overview
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The C-Band Systems are labelled the 5700 series. The Ku-Band Systems are labelled the 5900 series.
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Both C-Band & Ku-Band systems have four major components. Theses components are:
Power Supply
Converter Module
Solid State Power Amplifier (SSPA)
LNA (C-Band) or LNB (Ku-Band)
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Power Supply – Receives AC power from the ship and converts it to 48 VDC to power the Converter &
SSPA modules. The AC input is switch selectable for either 220 VAC or 110 VAC
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Converter Module - The Converter Module performs multiple functions.
It provides the interfaces between the below decks equipment (modem & DAC) and the SSPA.
Power levels, attenuation levels, and frequencies are programmed in this module using either a PC
or hand held controller.
It controls the SSPA functions and displays fault conditions.
It performs the frequency up conversion from 70 MHz to either C-Band or Ku-Band and the down
conversion from C-Band or Ku-Band to 70 MHz
C-Band & Ku-Band Transceiver Systems
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Solid State Power Amplifier (SSPA) – The SSPA receives DC power and the
Transmit input frequency (C-Band or Ku-Band) from the Converter module.
Also, any fault conditions will be relayed to the Converter where it will be
displayed on the front panel window.
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LNA & LNB – Provides the C-Band (LNA) or Ku-Band (LNB) signal to the
Converter module for down conversion to 70 MHz.
C-Band & Ku-Band Transceiver Systems
Serial Communications
Monitor & Control
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The Converter module is configured in two different ways. They are:
1. Remotely connecting a PC running Hyper Terminal using the Seatel Supplied cable.
2. Directly connecting the PC to the Converter using the supplied Codan cable.
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The Hyper Terminal setup communication parameters are:
9600 baud, 8 data bits, 1 stop bit , no parity, no hardware control, no flow control
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The remote connection is established using the available connector (labeled “RS232”) on
the interconnect cable at the back of the DAC. This cable is supplied by Seatel
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The direct connection is established using the supplied Codan cable that is normally
located with the Spare Parts Kit.
C-Band & Ku-Band Transceiver Systems
• Typical Block Diagram for both C-Band & Ku-Band Transceiver Systems
AC Power
from ship
Codan
Power
Supply
48 VDC
TX RF
Modem
DAC
3-way
splitter
70 MHz
Converter
Module
C-Band or
Ku-Band
SSPA
DC Power
and
Control
TX RF
Feed
Ass'y
Antenna
test equip
PC or Controller
for M&C
RS232
Communications
RX RF
and
DC power
LNA
or
LNB
RX RF
Transceiver Connections - Front Panel
For Both the C-Band & Ku-Band Systems the Converter
Modules have the same Front Panel Connections. These
connections include:
RX IF Output (70 MHz signal to modem)
TX IF Input
(70 MHz signal from modem)
Monitor & Control Connector
DC Power Input from Codan Power supply
Control Panel shows status for Power, SSPA state, and Fault
conditions
Transceiver Connections - C-Band Rear Panel
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The C-Band & Ku-Band Systems Converter Modules have
similar Rear Panel Connections. These connections include:
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TX RF Output – Upconverted C-Band or Ku-Band signal sent
to SSPA
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RX RF Input Signal - LNA (C-Band) or LNB (Ku-Band)
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SSPA DC voltage and control signals to amplifier
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*C-Band Converter units have an LNA DC/Alarm connector.
The Ku-Band Converters do not.
Transceiver Connections - Ku-Band Rear Panel
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The C-Band & Ku-Band Systems Converter Modules have
similar Rear Panel Connections. These connections include:
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TX RF Output - C-Band or Ku-Band signal sent to SSPA
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RX RF Input Signal - LNA (C-Band or LNB Ku-Band)
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SSPA DC voltage and control signals to amplifier
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*Ku-Band Converters have a separate RX L-Band output. The
C-Band Converters do not.
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The RX L-Band Output is used mainly in combined
Transmit/Receive & TVRO systems. This is the full 500 MHz
receive band of the satellite
Transceiver Connections - Front Panel Window
POWER OFF / STANDBY / ON switch
When in STANDBY, only the reference oscillator and
M&C sections operate. The 5700 or 5900 converter
can be turned ON by the control-panel switch, a
serial data command or a remote contact closure.
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SSPA - INHIBIT / REMOTE / ACTIVATE
The Control Panel switch allows local activation or
de-activation of the SSPA for maintenance, and for
re-setting alarms. Remote control is also possible by
serial data command or a dry-contact closure
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The highlighted switch positions correspond to:
RS232 interface,ASCII protocol, 9600 bits/sec.,8
data bits, no parity.
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The TERM and PACKET ADDRESS switch settings
are not relevant.
LNA & LNB Specifications
• Frequency range
• Gain
• C-Band - LNA
3.400 - 4.200 GHz
• Ku-Band - LNB
Band 1 10.95 - 11.70 GHz
Band 2 11.70 - 12.20 GHz
Band 3 12.25 - 12.75 GHz
• C-Band LNA
• Ku-Band LNB
60 dB
60 dB
• Noise temperature
• C-Band
• Ku-Band
50 K max
75 K max
C-Band & Ku-Band Transceiver Systems - Frequency Conversions
• For both the C-Band (5700) and Ku-Band (5900) Systems:
The Converter module accepts 70 MHz input from the SCPC modem (Transmit Path) which it up
converts to C-Band or Ku-Band frequencies and sends to the SSPA.
The Converter module receives the C-Band or Ku-Band input from the LNA or LNB and down
converts them to 70 MHz then sends them to the SCPC Modem.
The Local Oscillator (LO) for both C-Band and Ku-Band Converters is not a fixed
frequency. It can be adjusted, and is selected in consideration with the satellite RF band to be
covered and the frequency range of the modem.
This means that the programmed frequency of the Converter is set to the Center Frequency of the
specified satellite transponder. This Center Frequency, combined with the frequency range of the
modem (+/- 18 MHz) allows the modem to be tuned to a specific frequency within each 36 MHz
satellite transponder.
The satellite transponder Center Frequency equals the SCPC modem Center Frequency of 70 MHz.
Frequency Conversion Examples - Transmit
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The following example is based on a HiSeasNet Vessel operating on the Atlantic Ocean
Region satellite
6315.545 MHZ Required Transmit RF Frequency as specified by satellite owner/operator
6320.000 MHz Satellite Transponder Center Frequency – Supplied by HiSeasNet Technical
Team.
Satellite Transponder Center Frequency = Modem Center Frequency of 70 MHz
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Difference between Transponder Center Freq +/- Assigned Freq = Difference between
Modem 70 MHz +/- actual required modem frequency
Step 1
Step 2
6320.000 – 6315.545 = 4.455 MHz below modem Center Frequency
70.000 MHz – 4.455 MHz = 65.545 Required Modem Transmit IF frequency
Frequency Conversion Examples - Receive
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The following example is based on a HiSeasNet Vessel operating on the Atlantic Ocean Region
satellite
Satellite Transmit Frequency - Satellite Frequency Translation = Satellite Receive Frequency
6320.000 MHz - 2225 MHz = 4095 MHz
4090.8525 MHZ Required Receive RF Frequency as specified by satellite owner/operator
4095.0000 MHz Satellite Transponder Center Frequency – Supplied by HiSeasNet Technical
Team.
Step 1
Step 2
4095.000 – 4090.8525 = 4.1475 MHz below modem Center Frequency
70.000 MHz – 4.1475 MHz = 65.8525 Required Modem Transmit IF frequency
Codan 5700 C-Band Commands
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5700 Converter Commands
> VPS
----------------------Parameter Settings---------------------System Command: On
Tx Freq: 5850 Atten: 0
SSPA Activate: On
Rx Freq: 3625 Atten: 0
SSPA Inhibit: Off
Cable Comp: 0
Echo: On
Impedance: 50
Ref. Override: On
IF Freq : 70
SSPA Mode: Extended
Faults: LNA - Enable
SSPA Comp Type: 5720-40
FAN - Enable
Conv Comp Type: 5700AVG
SSPA - Enable
Packet protocol: Codan
Packet addr: 0 (00H)
Power Up: Last State
-------------------------------------------------------------For actual transceiver status use VSS command
-------------------------------------------------------------> HLP
General Help (this Display)
> HLP
Control Commands
> HCC
Set Log Commands
> HLC
Set Fault enable Commands
> HFC
Set Parameter Commands
> HPC
View Commands
> HVC
Output Commands
> HOC
> HCC
System On
> SSOn n ==>
0 - Standby 1 - On
SSPA Activate
> SPAn n ==>
0 - Off
1 - On
SSPA Inhibit
> SPIn n ==>
0 - Off
1 - On
Reset Change Bits
> RCB
Reset
> RST
Codan 5700 C-Band Commands
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> HFC
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Set LNA Fault Enable
Set SSPA Fault Enable
Set Fan Fault Enable
> SLEn n ==>
> SPEn n ==>
> SFEn n ==>
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 – Enabled
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> HPC
Set echo
Set Ref Override
Set Impedance
Set IF Frequency
Set Conv Comp Type
> SECn n ==
> SROn n ==
> SIMn n ==
> SIFn n ==
> SCTn n ==
> 0 - Off ; 1 - On
> 0 - Off ; 1 - On
> 0 - 50
; 1 - 75
> 0 - 70
; 1 - 140
> 0 - Standard; 1 - Custom
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Set SSPA Comp Type
> SPTn n ==
> 0 - Off
1-3 - Custom 1-3
4 - 5705 - 5W
5 - 5710 - 10W
6 - 5720-40 - 20W/30W/40W
Codan 5700 C-Band Commands
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Set SSPA Mode
Set Tx Frequency
Set Rx Frequency
Set Tx Attenuation
Set Rx Attenuation
Set Cable Compensation
Set Address Range
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> HVC
View Faults Status
View Parameter Settings
View Control Status
View System Status
View Lock Status
View Identify information
View Table Data
View System Temperature
> SPMn n ==>
0 - Extended ; 1 - Basic
> STFnnnn
5850 <=nnnn<= 6425
> SRFnnnn
3625 <=nnnn<= 4200
> STAnn
0 <=nn<= 25
> SRAnn
0 <=nn<= 30
> SCCnn 0 <=nn<= 15 (Disabled)
> SARn n ==>
0 - 0 to 31
1 - 32 to 63
2 - 64 to 95
3 - 96 to 127
> SPPn n ==>
0 - Codan
1-3 - Mode 1-3
> SPUn n ==>
0 - Last State ; 1 - Transmit Off
Set Packet Protocol
Set Power Up
> VFS
> VPS
> VCS
> VSS
> VLS
> VID
> VTD
> VST
Codan 5700 C-Band Commands
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> HOC
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Output System On
Output SSPA Activate
Output SSPA Inhibit
Output Conv Comp Type
Output SSPA Comp Type
Output LNA Fault Enable
Output Fan Fault Enable
Output SSPA Fault Enable
Output SSPA Mode
Output Transmit Frequency
Output Receive Frequency
Output Cable Compensation
Output Impedance
Output IF Frequency
Output Address
Output Address Range
Output Identity Data
Output Status Poll
Output Frequency Data
Output Conv Serial No.
> OSO
> OPA
> OPI
> OCT
> OPT
> OLE
> OFE
> OPE
> OPM
> OTF
> ORF
> OCC
> OIM
> OIF
> OAD
> OAR
> OTD
> OSP
> OFD
> OCN
Output Identification
Output Echo
Output Ref. Override
Output Temperature Conv
Output Temperature SSPA
Output Fault Status
Output Control Status
Output System Status
Output Lock Status
Output Transmit Attenuator
Output Receive Attenuator
Output Fault
Logging
Output Status
Logging
Output Lock status Logging
Output Temperature Logging
Output Packet Protocol
Output Configuration Data
Output Device Type
Output Compensation Data
Output Power Up
> OID
> OEC
> ORO
> OTC
> OTP
> OFS
> OCS
> OSS
> OLS
> OTA
> ORA
> OFL
> OSL
> OLL
> OTL
> OPP
> ODP
> ODT
> OCD
> OPU
Codan 5900 C-Band Commands
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>HLP
General Help (this Display)
Set Control Commands
Set Main Parameter Commands
Set Auxiliary Parameter Commands
Set Log Parameter Commands
View Commands
Output Parameter Commands
Output Data Commands
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>HCC
System On
SSPA Activate
SSPA Inhibit
Reset Change Bits
Reset
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>HPM
Set Tx Frequency
Set Rx Frequency
Set Tx Attenuation
Set Rx Attenuation
> HLP
> HCC
> HPM
> HPA
> HPL
> HVC
> HOP
> HOD
> SSOn n ==>
> SPAn n ==>
> SPIn n ==>
> RCB
> RST
0 - Standby 1 - On
0 - Off
1 - On
0 - Off
1 - On
> STFnnnnn 14000 <=nnnnn<= 14500 MHz
> SRFnnnnn 10950 <=nnnnn<= 11700 MHz
> STAnn 0 <=nn<= 25
> SRAnn 0 <=nn<= 25
Codan 5900 C-Band Commands
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>HPA
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Set Receive Range
> SRRn n ==>
Set SSPA Mode
Set Reference Override
Set Cable Compensation
Set IF Frequency
Set Impedance
Set LNB Fault Enable
Set SSPA Fault Enable
Set O/P Fault Enable
Set Conv Comp Type
Set SSPA Comp Type
Set SSPA Detector Type
Set Output Threshold
Set echo
Set Packet Protocol
Set Address Range
127
Set Power Up
> SPMn n ==>
> SROn n ==>
> SCCnn
> SIFn n ==>
> SIMn n ==>
> SLEn n ==>
> SPEn n ==>
> STEn n ==>
> SCTn n ==>
> SPTn n ==>
> SPDn n ==>
> SOTnn
> SECn n ==>
> SPPn n ==>
> SARn n ==>
0 - 950 to 1700 MHz
1 - 10950 to 11700 MHz
2 - 11700 to 12200 MHz
3 - 12250 to 12750 MHz
0 - Extended ; 1 - Basic
0 - Off
; 1 - On
0 <=nn<= 15 (Disabled)
0 - 70
; 1 - 140
0 - 50
; 1 - 75
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Standard ; 1 - Custom
0 - Off; 1 - 59xx Std; 2 - Custom
0 - 59xx Std ; 1 - Custom
20 <=nn<= 55
0 - Off
; 1 - On
0 - Codan ; 1-3 - Mode 1-3
0 - 0 to 31 ; 1 - 32 to 63 ; 2 - 64 to 95 ; 3 - 96 to
> SPUn n ==>
0 - Last State ; 1 - Transmit Off
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Codan 5900 C-Band Commands
• >HPL
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Set Fault Logging
Set Status Logging
Set Lock status Logging
Set Temperature Logging
Set Power Logging
> SFLn
> SSLn
> SLLn
> STLn
> SPLn
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>HVC
View Faults Status
View Parameter Settings
View Control Status
View System Status
View Lock Status
View SSPA Faults
> VFS
> VPS
> VCS
> VSS
> VLS
> VPF
n ==>
n ==>
n ==>
n ==>
n ==>
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 – Enabled
View Identity Converter
View Identity SSPA
View Table Data
View System Temperature
View Max/Min Temperatures
> VID
> VIP
> VTD
> VST
> VMT
Codan 5900 C-Band Commands
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>HOP
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Output System On
Output Reference Override
Output Transmit Frequency
Output Receive Frequency
Output SSPA Mode
Output Conv Comp Type
Output SSPA Comp Type
Output SSPA Detector
Output O/P Threshold
Output Cable Compensation
Output IF Frequency
Output Impedance
Output Packet Protocol
Output Address
Output Address Range
Output Identity Data
Output Power Up
> OSO
> ORO
> OTF
> ORF
> OPM
> OCT
> OPT
> OPD
> OOT
> OCC
> OIF
> OIM
> OPL
> OAD
> OAR
> OTD
> OPU
Output SSPA Activate
Output SSPA Inhibit
> OPI
Output Transmit Attenuator
Output Receive Attenuator
Output Receive Range
Output LNB Fault Enable
Output SSPA Fault Enable
Output O/P Fault Enable
Output Fault Logging
Output Status Logging
Output Lock status Logging
Output Temperature Logging
Output O/P Power Logging
Output Echo
Output Configuration Data
Output SSPA Band
> OPA
> OTA
> ORA
> ORR
> OLE
> OPE
> OTE
> OFL
> OSL
> OLL
> OTL
> OPL
> OEC
> ODP
> OFP
Codan 5900 C-Band Commands
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>HOD
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Output Temperature Conv
Output Temperature SSPA
Output SSPA O/P Power
Output SSPA Compensation
Output Fault Status
Output Control Status
Output System Status
Output Lock Status
Output SSPA Faults
Output Status Poll
> OTC
> OTP
> OPO
> OPC
> OFS
> OCS
> OSS
> OLS
> OPF
> OSP
Output Max/Min Conv Temps
Output Max/Min SSPA Temps
Output Identity Conv
Output Identity SSPA
Output Device Type
Output Frequency Data
Output Comp/Detector Data
Output Conv Serial No.
Output SSPA Serial No.
> OMC
> OMP
> OID
> OIP
> ODT
> OFD
> OCD
> OCN
> OPN