Codan C-Band & Ku-Band IF
Transceiver Systems
HiSeasNet Training Course
SIO, August 2009
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 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
•
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
2
C-Band & Ku-Band Transceiver Systems
• 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.
• LNA & LNB –
Provides the C-Band (LNA) or Ku-Band (LNB) signal to the
Converter module for down conversion to 70 MHz.
3
C-Band & Ku-Band Transceiver Systems
Serial Communications
Monitor & Control
•
The Converter module is configured in two different ways. They are:
•
The Hyper Terminal setup communication parameters are:
•
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
•
The direct connection is established using the supplied Codan cable that is
normally located with the Spare Parts Kit.
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.
9600 baud, 8 data bits, 1 stop bit , no parity, no hardware control, no flow
control
4
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
5
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
6
Transceiver Connections
C-Band Rear Panel
• The C-Band & Ku-Band Systems Converter Modules have
similar Rear Panel Connections. These connections
include:
• TX RF Output – Upconverted 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
• *C-Band Converter units have an LNA DC/Alarm
connector. The Ku-Band Converters do not.
7
Transceiver Connections
Ku-Band Rear Panel
• The C-Band & Ku-Band Systems Converter Modules have
similar Rear Panel Connections. These connections
include:
• 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 combined
Transmit/Receive & TVRO systems. This is the full 500
MHz receive band of the satellite
8
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.
•
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
•
The highlighted switch positions correspond to:
RS232 interface, ASCII protocol, 9600 bits/sec.,8
data bits, no parity.
•
The TERM and PACKET ADDRESS switch settings
are not relevant.
9
LNA & LNB Specifications
• Frequency range
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
• Gain
• Noise temperature
C-Band
Ku-Band
50 K max
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
10
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.
11
Frequency Conversion Examples - Transmit
• 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
6320.000 MHz = Satellite Transponder Center Frequency – Supplied by HiSeasNet
Technical Team.
Satellite Transponder Center Frequency = Modem Center Frequency of 70 MHz
AND
Difference between Transponder Center Freq +/- Assigned Freq = Difference
between Modem 70 MHz +/- actual required modem frequency
Step 1. 6320.000 – 6315.545 = 4.455 MHz below modem Center Frequency
Step 2. 70.000 MHz – 4.455 MHz = 65.545 Required Modem Transmit IF frequency
12
Frequency Conversion Examples - Receive
• The following example is based on a HiSeasNet Vessel operating on the Atlantic Ocean
Region satellite
Satellite TX Frequency - Satellite Frequency Translation = Satellite RX 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. 4095.000 – 4090.8525 = 4.1475 MHz below modem Center Frequency
Step 2. 70.000 MHz – 4.1475 MHz = 65.8525 Required Modem Transmit IF frequency
13
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 - 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
SSPA Activate
> SPAn n ==>
0 - Off
SSPA Inhibit
> SPIn n ==>
0 - Off
Reset Change Bits
> RCB
Reset
> RST
1 - On
1 - On
1 - On
14
Codan 5700 C-Band Commands
> HFC
Set LNA Fault Enable
Set SSPA Fault Enable
Set Fan Fault Enable
> SLEn
> SPEn
> SFEn
> HPC
Set echo
Set Ref Override
Set Impedance
Set IF Frequency
Set Conv Comp Type
>
>
>
>
>
Set SSPA Comp Type
SECn
SROn
SIMn
SIFn
SCTn
> SPTn n ==
n ==>
n ==>
n ==>
n
n
n
n
n
==
==
==
==
==
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 - Enabled
0 - Disabled ; 1 – Enabled
>
>
>
>
>
0
0
0
0
0
-
Off
;
Off
;
50
;
70
;
Standard;
1
1
1
1
1
-
On
On
75
140
Custom
> 0 - Off
1-3
4 5 6 -
- Custom 1-3
5705
- 5W
5710
- 10W
5720-40 - 20W/30W/40W
15
Codan 5700 C-Band Commands
Set
Set
Set
Set
Set
Set
Set
SSPA Mode
Tx Frequency
Rx Frequency
Tx Attenuation
Rx Attenuation
Cable Compensation
Address Range
>
>
>
>
>
>
>
SPMn n ==>
STFnnnn
SRFnnnn
STAnn
SRAnn
SCCnn
SARn n ==>
Set Packet Protocol
> SPPn n ==>
3
Set Power Up
Off
> SPUn n ==>
> 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
>
>
>
>
>
>
>
>
0 - Extended
; 1 - Basic
5850 <=nnnn<= 6425
3625 <=nnnn<= 4200
0 <=nn<= 25
0 <=nn<= 30
0 <=nn<= 15 (Disabled)
0 - 0 to 31
1 - 32 to 63
2 - 64 to 95
3 - 96 to 127
0 - Codan
1-3 - Mode 10 - Last State ; 1 - Transmit
VFS
VPS
VCS
VSS
VLS
VID
VTD
VST
16
Codan 5700 C-Band Commands
> HOC
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
System On
SSPA Activate
SSPA Inhibit
Conv Comp Type
SSPA Comp Type
LNA Fault Enable
Fan Fault Enable
SSPA Fault Enable
SSPA Mode
Transmit Frequency
Receive Frequency
Cable Compensation
Impedance
IF Frequency
Address
Address Range
Identity Data
Status Poll
Frequency Data
Conv Serial No.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
OSO
OPA
OPI
OCT
OPT
OLE
OFE
OPE
OPM
OTF
ORF
OCC
OIM
OIF
OAD
OAR
OTD
OSP
OFD
OCN
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Identification
Echo
Ref. Override
Temperature Conv
Temperature SSPA
Fault
Status
Control Status
System Status
Lock
Status
Transmit Attenuator
Receive Attenuator
Fault
Logging
Status
Logging
Lock status Logging
Temperature Logging
Packet Protocol
Configuration Data
Device Type
Compensation Data
Power Up
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
OID
OEC
ORO
OTC
OTP
OFS
OCS
OSS
OLS
OTA
ORA
OFL
OSL
OLL
OTL
OPP
ODP
ODT
OCD
OPU
17
Codan 5900 C-Band Commands
>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
>HCC
System On
SSPA Activate
SSPA Inhibit
Reset Change Bits
Reset
>HPM
Set Tx
Set Rx
Set Tx
Set Rx
Frequency
Frequency
Attenuation
Attenuation
>
>
>
>
>
>
>
>
>
SSOn
SPAn
SPIn
RCB
RST
> HLP
> HCC
> HPM
> HPA
> HPL
> HVC
> HOP
> HOD
n ==>
n ==>
n ==>
STFnnnnn
SRFnnnnn
STAnn
SRAnn
0 - Standby
0 - Off
0 - Off
1 - On
1 - On
1 - On
14000 <=nnnnn<= 14500 MHz
10950 <=nnnnn<= 11700 MHz
0 <=nn<= 25
0 <=nn<= 25
18
Codan 5900 C-Band Commands
>HPA
Set Receive Range
> SRRn n ==>
0 -
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
0 - Extended
0 - Off
0 <=nn<= 15
0 - 70
0 - 50
0 - Disabled
0 - Disabled
0 - Disabled
0 - Standard
0 - Off; 1 0 - 59xx Std
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
SSPA Mode
Reference Override
Cable Compensation
IF Frequency
Impedance
LNB Fault Enable
SSPA Fault Enable
O/P Fault Enable
Conv Comp Type
SSPA Comp Type
SSPA Detector Type
Output Threshold
echo
Packet Protocol
Address Range
95 ; 3 - 96 to 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
==>
==>
==>
==>
==>
==>
==>
==>
==>
==>
==>
==>
==>
> SPUn n ==>
950 to
1700 MHz
1 - 10950 to 11700 MHz
2 - 11700 to 12200 MHz
3 - 12250 to 12750 MHz
; 1 - Basic
; 1 - On
(Disabled)
; 1 - 140
; 1 - 75
; 1 - Enabled
; 1 - Enabled
; 1 - Enabled
; 1 - Custom
59xx Std; 2 - Custom
; 1 - Custom
0 - Last State ; 1 - Transmit Off
19
Codan 5900 C-Band Commands
•
>HPL
•
•
•
•
•
Set
Set
Set
Set
Set
•
•
•
•
•
•
•
>HVC
View
View
View
View
View
View
Fault Logging
Status Logging
Lock status Logging
Temperature Logging
Power Logging
Faults Status
Parameter Settings
Control Status
System Status
Lock Status
SSPA Faults
>
>
>
>
>
>
>
>
>
>
>
VFS
VPS
VCS
VSS
VLS
VPF
SFLn
SSLn
SLLn
STLn
SPLn
n
n
n
n
n
==>
==>
==>
==>
==>
View
View
View
View
View
0
0
0
0
0
-
Disabled
Disabled
Disabled
Disabled
Disabled
;
;
;
;
;
1
1
1
1
1
Identity Converter
Identity SSPA
Table Data
System Temperature
Max/Min Temperatures
–
Enabled
Enabled
Enabled
Enabled
Enabled
>
>
>
>
>
VID
VIP
VTD
VST
VMT
20
Codan 5900 C-Band Commands
>HOP
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Systemn
Reference Override
Transmit Frequency
Receive Frequency
SSPA Mode
Conv Comp Type
SSPA Comp Type
SSPA Detector
O/P Threshold
Cable Compensation
IF Frequency
Impedance
Packet Protocol
Address
Address Range
Identity Data
Power Up
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
OSO
ORO
OTF
ORF
OPM
OCT
OPT
OPD
OOT
OCC
OIF
OIM
OPL
OAD
OAR
OTD
OPU
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
SSPA Activate
SSPA Inhibit
Transmit Attenuator
Receive Attenuator
Receive Range
LNB Fault Enable
SSPA Fault Enable
O/P Fault Enable
Fault Logging
Status Logging
Lock status Logging
Temperature Logging
O/P Power Logging
Echo
Configuration Data
SSPA Band
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
OPA
OPI
OTA
ORA
ORR
OLE
OPE
OTE
OFL
OSL
OLL
OTL
OPL
OEC
ODP
OFP
21
Codan 5900 C-Band Commands
>HOD
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Temperature Conv
Temperature SSPA
SSPA O/P Power
SSPA Compensation
Fault Status
Control Status
System Status
Lock Status
SSPA Faults
Status Poll
>
>
>
>
>
>
>
>
>
>
OTC
OTP
OPO
OPC
OFS
OCS
OSS
OLS
OPF
OSP
Output
Output
Output
Output
Output
Output
Output
Output
Output
Max/Min Conv Temps
Max/Min SSPA Temps
Identity Conv
Identity SSPA
Device Type
Frequency Data
Comp/Detector Data
Conv Serial No.
SSPA Serial No.
>
>
>
>
>
>
>
>
>
OMC
OMP
OID
OIP
ODT
OFD
OCD
OCN
OPN
22