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Codan C-Band & Ku-Band IF
Transceiver Systems
HiSeasNet Training Course
SIO, August 2009
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C-Band & Ku-Band Transceiver Systems
Overview The C-Band Systems are labelled the 5700 series. The Ku-Band Systems are labelled the 5900 series.
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)
Power SupplyReceives 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
Converter Module- The Converter Module performs multiple functions.1. It provides the interfaces between the below decks equipment (modem & DAC) and the SSPA.2. Power levels, attenuation levels, and frequencies are programmed in this module using either a
PC or hand held controller.3. It controls the SSPA functions and displays fault conditions.4. 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
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C-Band & Ku-Band Transceiver Systems
Solid State Power Amplifier (SSPA)The SSPA receives DC power and theTransmit input frequency (C-Band or Ku-Band) from theConverter module. Also, any fault conditions will be relayed
to the Converter where it will be displayed on the frontpanel window.
LNA & LNB Provides the C-Band (LNA) or Ku-Band (LNB) signal to theConverter module for down conversion to 70 MHz.
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C-Band & Ku-Band Transceiver Systems
Serial Communications
Monitor & Control
The Converter module is configured in two different ways. They are:1. Remotely by connecting a PC running HyperTerminal and using the Seatel
Supplied cable.2. Directly connecting the PC to the Converter using the supplied Codan cable.
The Hyper Terminal setup communication parameters are:9600 baud, 8 data bits, 1 stop bit , no parity, no hardware control, no flowcontrol
The remote connection is established using the available connector (labeledRS232) on the interconnect cable at the back of the DAC. This cable is suppliedby Seatel
The direct connection is established using the supplied Codan cable that isnormally located with the Spare Parts Kit.
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C-Band & Ku-Band Transceiver Systems
Typical Block Diagram for both C-Band & Ku-Band Transceiver Systems
C-Band or
Ku-Band
SSPA
Feed
Ass'y
AntennaConverter
Module
Codan
Power
Supply
AC Power
from ship
LNA
or
LNB
TX RF
RX RF
and
DC power
Modem
70 MHz
PC or Controller
for M&C
48 VDC
RS232
Communications
TX RF
DC Power
and
Control
RX RF
3-way
splitterDAC
test equip
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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
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Transceiver ConnectionsC-Band Rear Panel
The C-Band & Ku-Band Systems Converter Modules havesimilar Rear Panel Connections. These connectionsinclude:
TX RF OutputUpconverted C-Band or Ku-Band signalsent to SSPA
RX RF Input Signal - LNA (C-Band) or LNB (Ku-Band)
SSPA DC voltage and control signals to amplifier
*C-Band Converter units have an LNA DC/Alarmconnector. The Ku-Band Converters do not.
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Transceiver ConnectionsKu-Band Rear Panel
The C-Band & Ku-Band Systems Converter Modules havesimilar Rear Panel Connections. These connectionsinclude:
TX RF Output - C-Band or Ku-Band signal sent to SSPA
RX RF Input Signal - LNA (C-Band or LNB Ku-Band)
SSPA DC voltage and control signals to amplifier
*Ku-Band Converters have a separate RX L-Band output.The C-Band Converters do not.
The RX L-Band Output is used mainly in combinedTransmit/Receive & TVRO systems. This is the full 500MHz receive band of the satellite
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Transceiver ConnectionsFront Panel Window
POWER OFF / STANDBY / ON switchWhen in STANDBY, only the reference oscillatorand M&C sections operate. The 5700 or 5900converter can be turned ON by the control-panelswitch, a serial data command or a remotecontact closure.
SSPA - INHIBIT / REMOTE / ACTIVATEThe Control Panel switch allows local activationor de-activation of the SSPA for maintenance,and for re-setting alarms. Remote control is alsopossible by serial data command or a dry-contactclosure
The highlighted switch positions correspond to:RS232 interface, ASCII protocol, 9600 bits/sec.,8data bits, no parity.
The TERM and PACKET ADDRESS switch settings
are not relevant.
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LNA & LNB Specifications
Frequency range
C-Band - LNA 3.400 - 4.200 GHz
Ku-Band - LNB Band 1 10.95 - 11.70 GHzBand 2 11.70 - 12.20 GHz*Band 3 12.25 - 12.75 GHz
GainC-Band LNA 60 dB
Ku-Band LNB 60 dB
Noise temperatureC-Band 50 K max
Ku-Band 75 K max
Note: Band 2, 11.70-12.20 GHz is the frequency band used by the HiSeasNet
ships operating at Ku-Band on Satmex 5
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C-Band & Ku-Band Transceiver SystemsFrequency 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 downconverts 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 fixedfrequency. It can be adjusted, and is selected in consideration with the satellite RF band to becovered and the frequency range of the modem.
This means that the programmed frequency of the Converter is set to the Center Frequency ofthe specified satellite transponder. This Center Frequency, combined with the frequency rangeof the modem (+/- 18 MHz) allows the modem to be tuned to a specific frequency within each36 MHz satellite transponder.
The satellite transponder Center Frequency equals the SCPC modem Center Frequency of 70MHz.
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Frequency Conversion Examples - Transmit
The following example is based on a HiSeasNet Vessel operating on the Atlantic OceanRegion satellite
6315.545 MHZ = Required Transmit RF Frequency as specified by satellite owner
6320.000 MHz = Satellite Transponder Center FrequencySupplied by HiSeasNetTechnical Team.
Satellite Transponder Center Frequency = Modem Center Frequency of 70 MHz
AND
Difference between Transponder Center Freq +/- Assigned Freq = Differencebetween Modem 70 MHz +/- actual required modem frequency
Step 1. 6320.0006315.545 = 4.455 MHz below modem Center Frequency
Step 2. 70.000 MHz4.455 MHz = 65.545 Required Modem Transmit IF frequency
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Frequency Conversion Examples - Receive
The following example is based on a HiSeasNet Vessel operating on the Atlantic OceanRegion satellite
Satellite TX Frequency - Satellite Frequency Translation = Satellite RX Frequency6320.000 MHz - 2225 MHz = 4095 MHz
4090.8525 MHZ Required Receive RF Frequency as specified by satellite owner/operator4095.0000 MHz Satellite Transponder Center FrequencySupplied by HiSeasNet
Technical Team.
Step 1. 4095.0004090.8525 = 4.1475 MHz below modem Center FrequencyStep 2. 70.000 MHz4.1475 MHz = 65.8525 Required Modem Transmit IF frequency
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Codan 5700 C-Band Commands
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 - EnablePacket 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
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Codan 5700 C-Band Commands
> HFC
Set LNA Fault Enable > SLEn n ==> 0 - Disabled ; 1 - Enabled
Set SSPA Fault Enable > SPEn n ==> 0 - Disabled ; 1 - Enabled
Set Fan Fault Enable > SFEn n ==> 0 - Disabled ; 1 Enabled
> HPC
Set echo > SECn n == > 0 - Off ; 1 - OnSet Ref Override > SROn n == > 0 - Off ; 1 - On
Set Impedance > SIMn n == > 0 - 50 ; 1 - 75
Set IF Frequency > SIFn n == > 0 - 70 ; 1 - 140
Set Conv Comp Type > SCTn n == > 0 - Standard; 1 - Custom
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
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Codan 5700 C-Band CommandsSet SSPA Mode > SPMn n ==> 0 - Extended ; 1 - Basic
Set Tx Frequency > STFnnnn 5850 0 - Last State ; 1 - TransmitOff
> HVC
View Faults Status > VFS
View Parameter Settings > VPSView Control Status > VCS
View System Status > VSS
View Lock Status > VLS
View Identify information > VID
View Table Data > VTD
View System Temperature > VST
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Codan 5700 C-Band Commands
> HOC
Output System On > OSO Output Identification > OIDOutput SSPA Activate > OPA Output Echo > OEC
Output SSPA Inhibit > OPI Output Ref. Override > ORO
Output Conv Comp Type > OCT Output Temperature Conv > OTC
Output SSPA Comp Type > OPT Output Temperature SSPA > OTP
Output LNA Fault Enable > OLE Output Fault Status > OFS
Output Fan Fault Enable > OFE Output Control Status > OCS
Output SSPA Fault Enable > OPE Output System Status > OSS
Output SSPA Mode > OPM Output Lock Status > OLSOutput Transmit Frequency > OTF Output Transmit Attenuator > OTA
Output Receive Frequency > ORF Output Receive Attenuator > ORA
Output Cable Compensation > OCC Output Fault Logging > OFL
Output Impedance > OIM Output Status Logging > OSL
Output IF Frequency > OIF Output Lock status Logging > OLL
Output Address > OAD Output Temperature Logging > OTL
Output Address Range > OAR Output Packet Protocol > OPP
Output Identity Data > OTD Output Configuration Data > ODPOutput Status Poll > OSP Output Device Type > ODT
Output Frequency Data > OFD Output Compensation Data > OCD
Output Conv Serial No. > OCN Output Power Up > OPU
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Codan 5900 C-Band Commands
>HLP
General Help (this Display) > HLP
Set Control Commands > HCC
Set Main Parameter Commands > HPM
Set Auxiliary Parameter Commands > HPA
Set Log Parameter Commands > HPL
View Commands > HVC
Output Parameter Commands > HOPOutput Data Commands > HOD
>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
>HPM
Set Tx Frequency > STFnnnnn 14000
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Codan 5900 C-Band Commands
>HPA
Set Receive Range > SRRn n ==> 0 - 950 to 1700 MHz
1 - 10950 to 11700 MHz
2 - 11700 to 12200 MHz
3 - 12250 to 12750 MHz
Set SSPA Mode > SPMn n ==> 0 - Extended ; 1 - Basic
Set Reference Override > SROn n ==> 0 - Off ; 1 - On
Set Cable Compensation > SCCnn 0 0 - 70 ; 1 - 140
Set Impedance > SIMn n ==> 0 - 50 ; 1 - 75
Set LNB Fault Enable > SLEn n ==> 0 - Disabled ; 1 - Enabled
Set SSPA Fault Enable > SPEn n ==> 0 - Disabled ; 1 - Enabled
Set O/P Fault Enable > STEn n ==> 0 - Disabled ; 1 - Enabled
Set Conv Comp Type > SCTn n ==> 0 - Standard ; 1 - Custom
Set SSPA Comp Type > SPTn n ==> 0 - Off; 1 - 59xx Std; 2 - CustomSet SSPA Detector Type > SPDn n ==> 0 - 59xx Std ; 1 - Custom
Set Output Threshold > SOTnn 20 0 - Off ; 1 - On
Set Packet Protocol > SPPn n ==> 0 - Codan ; 1-3 - Mode 1-3
Set Address Range > SARn n ==> 0 - 0 to 31 ; 1 - 32 to 63 ; 2 - 64 to95 ; 3 - 96 to 127
Set Power Up > SPUn n ==> 0 - Last State ; 1 - Transmit Off
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Codan 5900 C-Band Commands
>HPL
Set Fault Logging > SFLn n ==> 0 - Disabled ; 1 - Enabled
Set Status Logging > SSLn n ==> 0 - Disabled ; 1 - Enabled
Set Lock status Logging > SLLn n ==> 0 - Disabled ; 1 - Enabled
Set Temperature Logging > STLn n ==> 0 - Disabled ; 1 - Enabled
Set Power Logging > SPLn n ==> 0 - Disabled ; 1 Enabled
>HVC
View Faults Status > VFS View Identity Converter > VID
View Parameter Settings > VPS View Identity SSPA > VIP
View Control Status > VCS View Table Data > VTD
View System Status > VSS View System Temperature > VST
View Lock Status > VLS View Max/Min Temperatures > VMT View SSPA Faults > VPF
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Codan 5900 C-Band Commands
>HOP
Output Systemn > OSO Output SSPA Activate > OPA
Output Reference Override > ORO Output SSPA Inhibit > OPI
Output Transmit Frequency > OTF Output Transmit Attenuator > OTA
Output Receive Frequency > ORF Output Receive Attenuator > ORA
Output SSPA Mode > OPM Output Receive Range > ORR
Output Conv Comp Type > OCT Output LNB Fault Enable > OLEOutput SSPA Comp Type > OPT Output SSPA Fault Enable > OPE
Output SSPA Detector > OPD Output O/P Fault Enable > OTE
Output O/P Threshold > OOT Output Fault Logging > OFL
Output Cable Compensation > OCC Output Status Logging > OSL
Output IF Frequency > OIF Output Lock status Logging > OLL
Output Impedance > OIM Output Temperature Logging > OTL
Output Packet Protocol > OPL Output O/P Power Logging > OPL
Output Address > OAD Output Echo > OEC
Output Address Range > OAR Output Configuration Data > ODP
Output Identity Data > OTD Output SSPA Band > OFP
Output Power Up > OPU
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Codan 5900 C-Band Commands
>HOD
Output Temperature Conv > OTC Output Max/Min Conv Temps > OMC
Output Temperature SSPA > OTP Output Max/Min SSPA Temps > OMP
Output SSPA O/P Power > OPO Output Identity Conv > OID
Output SSPA Compensation > OPC Output Identity SSPA > OIP
Output Fault Status > OFS Output Device Type > ODT
Output Control Status > OCS Output Frequency Data > OFD
Output System Status > OSS Output Comp/Detector Data > OCD
Output Lock Status > OLS Output Conv Serial No. > OCN
Output SSPA Faults > OPF Output SSPA Serial No. > OPN
Output Status Poll > OSP
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