1. Codan 5700 Series C-Band Transceiver
Operation

2. 5700 Connectors (1) DC POWER connector IF N-type connectors
48V DC (37-76V), floating or ground-referenced, via a 5-way ‘MS’ plug
IF N-type connectors
Use only quality N-plugs. Sockets are always 50-ohms
The 19-way MONITOR / CONTROL (M&C) connector
M&C has dry contact & serial data facilities
Please note: All N type connectors are 50 Ohms on the If you are using 75 ohm IF cables they must be terminated with 50 Ohm N-type connectors. It is still important to set the impedance to 75 ohms while configuring the transceiver.

3. 5700 Connectors (2) SSPA DC / CONTROL connector RF N-type connectors
Use only quality N-plugs. Sockets are always 50-ohms
The separate LNA DC / ALARM connector
LNA socket provides 15V at up to 400mA. A cable is available for Maxtech LNA’s with form ‘A’ alarm option
The Rx RF connector provides the 15 V DC supply for the LNA. This can be turned off via the front panel DIP switches.

4. 5700 Controls (1)
POWER OFF / STANDBY / ON switch When in STANDBY, only the reference oscillator and M&C sections operate. The 5700 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
1. The POWER switch must be in STANDBY or ON to allow external control. For most installations, where continuous operation is required, simply leave the POWER switch ON.
2. Note that if the unit is in STANDBY, then any ON command will turn it on. (The ‘ON’ over-rides the ‘STANDBY’.)
3. The SSPA can be activated locally with the control panel switch, or remotely from a system controller (e.g., for DAMA stations, or ‘transmit on demand’ applications.) For most applications where continuous carriers are used, simply leave the switch in the ACTIVATE position.
NOTE: During commissioning, it is recommended you select the INHIBIT position until the station is quite ready to transmit.
4. Any SSPA ‘INHIBIT’ command will over-ride any ACTIVATE signal. So, even if the 5700 is being remotely commanded to transmit, you can stop transmission by switching to INHIBIT on the control panel. Similarly, if you wish to stop transmitting without removing the plexi-glass cover, you can command the SSPA to turn off by an INHIBIT command via the M&C port.
Note: SSPA faults must be reset by selecting INHIBIT before re-activating.
5. For CE-compliant operation, send the new power-up command (SPU1) to ensure the SSPA does not re-activate after a power interruption. Also ensure the front panel switch is set to REMOTE, and ensure the opto-isolated ‘Req SSPA Activate’ input is not asserted. An SPA1 command will then be required to activate the SSPA every time power is re-applied, thus satisfying the CE requirements.

5. 5700 Controls (2) Factory default switch settings:
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.
Control Panel option switches provide ready setting of:
- mains / battery operating thresholds
- LNA +15V feed at RF Input on / off
- Serial Interface parameters: RS232 or RS422 interface - ASCII/Packet protocol selection - Data rate, parity, address etc...
The MAINS/BATTERY option allows you to select the most appropriate turn-on voltage for the 5700 depending on the supply source. For unregulated supplies (such as the Codan 5581) select MAINS. This gives the 5700 a turn-on level of 52VDC, which ensures clean switch on and switch off during extreme mains variations.
Most importantly, set the LNA +15V to the correct position. This controls whether 15VDC appears at the Rx RF Input connector. If you are connecting the 5700 to a signal generators or test translator, or using an LNA with a separate power cable, ensure this switch is OFF !
The remaining option switches relate to the serial communications facility. For details refer to the User Manual. However, for the most common settings as typically used with a personal computer, select as shown above.

6. SSPA No controls or adjustments on the module
Choice of WR137 (CPRG flange) or N-type output
5 to 40W only
60 and 120W SSPA’s only have WR137 CPRG flange
Activating / inhibiting is controlled by the Converter
Gain vs. temperature compensation & system gain adjustment is also within the converter.
The choice between waveguide or co-axial N-output should be made at the time of ordering.
Whatever the output type, install your SSPA to minimise loss to the antenna feed. A 1m length of Times Microwave LMR400 UltraFlex each has about 0.7dB loss at 6GHz, including connectors. A similar length of WR137 “flex-twist” waveguide only has about 0.3dB loss, but costs more and is harder to install.
Remember, power costs money at microwave frequencies ! A 3dB loss in your feed system with a 20W SSPA is equivalent to having a 10W SSPA with no loss in the feed system.
Note that there are no adjustments actually on the SSPA, but the correct gain compensation parameter should be programmed into the 5700 Converter for guaranteed gain vs. temperature stability.

7. High Power SSPA Controls or adjustments in the module not necessary
WR137 (CPRG flange) output for superior performance
Activating / inhibiting is controlled by the 5700 Converter
Gain vs. temperature compensation & system gain adjustment is within the SSPA.
As for the Low Power systems, install your SSPA to minimise loss to the antenna feed. A 1m length of WR137 “flex-twist” waveguide has about 0.2dB loss.
Note that while there are adjustments available in the SSPA, these SHOULD NOT be accessed directly from the SSPA. The SSPA gain compensation parameter should be disabled in the 5700 Converter as this is managed by the SSPA itself. This setting is essential for correct operation.
The SSPA Mode parameter within the converter must be set to BASIC (SPM1) which was displayed as NON-CODAN in older software versions.
The FAN Fault setting must be disabled. The High Power SSPAs do not allow the converter to monitor the DC supply for the fans and consequently, the FAN Fault setting, if enabled, would always report a fault. If a Fan fails this is not reported by the converter, however this will eventually cause the SSPA to overheat and a TEMP Fault will be reported on the converter.
The OPBO when transmitting QPSK is especially critical for High Power SSPAs.

8. Getting Started (1) Connecting a basic low power system: 5582
Power Supply
5700
Converter
57XX
SSPA
LNA
5560, 5570 or PC
AC Power
48V DC
Tx RF
Power / Control
Rx RF
M&C
Tx RF O/P
Make sure you use microwave cables for the 4/6GHz connections. The Codan-supplied ‘Times Microwave’ cables have less than 0.7dB/meter loss at 6GHz, and excellent return-loss (or VSWR) characteristics.
Ideally, load the SSPA during bench testing, with a suitably rated attenuator or dummy load.
Remove the 5700 plexiglass cover, for easy access to the controls and settings.
Most importantly: Set the correct LNA +15V switch setting (especially if you intend to connect a 4GHz signal generator or test translator instead of an LNA), and ensure the MAINS/BATT switch is in the MAINS position for use with Codan power supplies. This guarantees ‘clean’ turn-off and turn-on behavior in the event of wide mains power fluctuations.

9. Getting Started (2) Connecting a basic High Power system: 5700
Converter
57XX
SSPA
LNA
5560, 5570 or PC
AC Power
48V DC
Tx RF
Power / Control
Rx RF
M&C
Tx RF O/P
Make sure that the SSPA is installed with the correct length of WR137 waveguide between the SSPA output flange and the transmit port of the antenna.
The FAN Fault setting in the converter must be disabled and the SSPA Temperature Compensation setting in the converter must be turned off. The SSPA Mode in the converter must be set to BASIC to ensure correct system operation.
High Power SSPAs have WR137 (CPRG) flanges; the customer must make sure that the appropriate, minimal length of waveguide is available.
A 2m “Times-Microwave 400 Ultraflex” cable is supplied for connecting the SSPA to the converter and a 3m “Times-Microwave 400 Ultraflex” cable is supplied for connecting the LNB to the converter.
Most importantly: Ensure the MAINS/BATT switch is in the BATT position for use with Codan High Power SSPAs. As the 48VDC power supplied by the High Power SSPAs is regulated, when the converter is turned on, the current surge at start up pulls the regulated DC voltage to a value lower than the turn-on threshold of the converter and the converter cannot successfully complete it’s turn-on.
It is always preferable to use regulated, “clean” AC power to supply the High Power SSPAs.

10. Getting Started (3) Grounding of modules
Ensure the SSPA, Converter and 5582 Power Supply are suitably grounded to a good-quality lightning stake
Ensure the antenna is also suitably grounded to a good-quality lightning earth stake
All Codan SSPAs, Converters and 5582 Power Supply units have an external, marked grounding bolt. Ensure that each of these points is directly bonded to an earth strap which is connected to a suitable, good-quality lightning earth stake. Where such an stake is not available, it is a good idea to install one.
In addition, the antenna structure itself should be bonded to the same earth strap. Certain antennas have moving sub-structures, all of which must be connected to earth.
The earth connections should be made with at least 4mm sq. cross-section copper earth wire or strap.
Care must be taken not to serially connect the various grounding bolts or antenna, each module and the antenna must be directly connected to the bonding point.
Though there is no guarantee, this will provide at least some measure of protection from lightning strikes in proximity of the system.

11. 5582 Mains Power Supply 115/230V selection
Simple linear power supply design
5A or 2.5A 20 x 5mm delay fuse (‘T’ type)
Provide a PROTECTIVE GROUND
Unit is UNREGULATED
Includes 48V ‘on’ LED
Ensure you have the correct VOLTAGE selection made, and the right fuse fitted.
The simple design of the power supply ensures long term reliability.
For safety and lightning protection, make sure a good mains GROUND is provided.
For safety reasons the +48VDC output has been grounded inside the Power Supply Unit. However, the 5700 and SSPA inputs are fully floating .

12. Powering Up Select SSPA INHIBIT. Turn on the mains power.
Connect the hand-held controller or personal computer to configure the transceivers perameters.
If you have a load connected, you can also turn on (ACTIVATE) the SSPA.
At switch-on, the green ON light should come on.
Also, all five red FAULT lights will come on briefly. If any stay on, common reasons for this will be explained below.
The yellow WARM-UP light will come on too. If REFERENCE OSCILLATOR OVERRIDE has been selected, this light will flash during the warm-up period, to indicate that transmission is possible but the reference oscillator may not be within its specified frequency tolerance yet.
If the LNA FAULT light is on, check that an LNA is connected appropriately and the LNA supply switch is set correctly (i.e.., LNA +15V on for LNA’s powered through the co-ax cable.)
If the FAN FAULT light is on, you may have a 5W SSPA without a fan or a high power SSPA (60/120W), and the Fan Fault reporting may be disabled by programming through the serial M&C commands.
If other FAULT lights are still on, check all cabling, and attempt to ‘reset’ the faults by inhibiting then re-activating the SSPA. If still unable to isolate the cause, use the Fault Finding flow-charts in the User Manual.

13. Programming the 5700 (1)
For PC operation, set the 5700 ‘DIP’ switches to match your terminal settings.
Establish PC-5700 communications via a spare COM port on your PC & the 19-way M&C connector on the 5700.
You can use the Windows ‘Hyper Terminal’ facility, ‘ProComm’ or similar communications software - no need to buy special software !
Once you have established communications to the 5700, consult the 5700 User Manual for the HELP and VIEW commands. Note that VPS (View Parameter Settings) gives a useful summary of what the 5700 is currently set up to do.
Note that if you see responses on your computer screen from the 5700, but can not see the characters you type, you probably need to set the ‘echo’ to the ON state; i.e.., type SEC1 (Set Echo ON).
Also consult the manual for the CONTROL commands. Note the priority of an ON command over the hardware switch setting of STAND-BY, and vice-versa.
Note that an SSPA INHIBIT command from any source will over-ride an SSPA ACTIVATE signal from another source.

14. Programming the 5700 (2)
The Set Parameter commands and Fault Enable commands must correctly reflect your actual hardware configuration
The Logging commands determine what information (if any) is sent to the terminal about the 5700 operating status.
Execute desired SET parameter commands. After changing (say) transmit frequency or gain, use VPS to verify new settings. Also make sure SPT (Set SSPA Type) is set to the correct value for the actual Power Amplifier you have.
Note that the FAULT ENABLE commands are important in configuring your 5700 to exactly match the system components you have. This applies to LNA FAULT, FAN FAULT, and SSPA FAULT.
The LOGGING commands are useful if you have the 5700 connected to a local monitoring PC, and you wish to see various status conditions logged by the computer.
The following parameters must be correctly set to ensure proper functioning of the system. A number of other parameters also exist and are explained in the 5700 Reference Manual. These parameters have been detailed assuming PC terminal operation; some may also be accessed using the Hand-Held Controller :
1. The System must be set to SSO1 (ON) for proper operation (SSO0 is OFF).
2. The SSPA Activate parameter must be set to SPA1 (ON) for transmission to be effected (SPA0 is ‘not activated’).
3. The SSPA Inhibit parameter must be set to SPI0 (OFF) for transmission to be effected (SPI1 is ‘Inhibited’ or muted.)
4. The SPU command must be either SPU0 (for automatic re-activation of the SSPA after a power interruption) or SPU1 (for CE-compliant operation.) See slide 5
5. The local terminal Echo must be set to SEC1 (ON) to ensure that characters are viewable on the terminal screen (SEC0 is OFF).

15. Programming the 5700 (3)
Certain parameters are essential for correct RF operation
Others are required for remote control of the RF system
6. If the Reference Override is set to SRO1 (ON), transmission may be effected during the warm-up period (SRO0 is OFF; i.e, the converter will not pass carrier during warm-up).
7. The SSPA Mode must be set to BASIC (NON-CODAN in older software versions) when using an SSPA other than the 5W, 10W, 20W, 30W or 40W. This is done by the SPM1 command. The SPM0 command sets the parameter to EXTENDED (CODAN in older software versions) which is appropriate for the Low Power SSPAs.
8. The SSPA Compensation type selects the appropriate gain-temperature compensation table for the SSPA within the converter. For 5W SSPAs select SPT4, for 10W SSPAs select SPT5, for 20W t o 40W SSPAs select SPT6. For ALL OTHER SSPAs (including the 60W and 120W SSPAs), this setting must be disabled (SPT0).
9. The Converter Compensation table does not have to be selected (STANDARD by default).
10. The Packet Protocol setting must be set to CODAN (SPP0) for normal communications between the Hand-Held Controller or PC terminal and converter. Other settings are SPP1 (Scientific-Atlanta BUS or Paradise BUS), SPP2 (Comstream BUS) and SPP3 (STM Wireless BUS).
11. The Transmit and Receive frequencies are the assigned transponder RF centre frequencies and are set by the STFxxxx and SRFxxxx commands respectively where xxxx is the relevant frequency in MHz.

16. Programming the 5700 (4)
Parameters may be set from the configuration PC terminal or the 5570 Remote Controller Unit
Certain parameters may be set from the 5560 Hand-Held controller
12. The Transmit and Receive attenuation settings are set using the STAxx and SRAxx commands respectively where xx is the relevant attenuation in decibels.
13. The IF Impedance parameter is set to 50ohms (SIM0) or 75ohms (SIM1).
14. The IF Frequency parameter is set to 70MHz (SIF0) or 140MHz (SIF1) centre frequencies. It is not possible to set to 70MHz when using wideband (80MHz bandwidth) converters.
15. The LNA Fault is enabled using the SLE1 command (SLE0 disables this).
16. The FAN Fault is enabled using the SFE1 command. When using SSPAs other than the Codan 10W, 20W, 30W and 40W models, this must be disabled by the SFE0 command.
17. The SSPA Fault is enabled using the SPE1 command (SPE0 disables this).
18. The Packet Address is set in conjunction with the DIP switches in the control panel. With SAR0 an address between 0-31 may be set, with SAR1 an address between may be set, with SAR2 an address between may be set, and with SAR3 an address between may be set. The Packet Address is only usable when the appropriate DIP switches for RS422 and Packet communications are enabled.

17. Alarms
Some alarm states will inhibit transmission: CONVERTER, SSPA,& TEMP (SSPA case > 75C)
A FAN or SSPA alarm must be reset by selecting SSPA INHIBIT first, then re-activating the SSPA.
An LNA alarm due to open-circuit will reset automatically when the LNA is connected.
An LNA alarm due to current exceeding 250mA from the N-connector will shut-down the LNA supply. To reset, switch the 5700 to STAND-BY then back ON.
Most Codan alarms are fail-safe. That is, if the relevant control cable is not connected, or equipment is unpowered, an alarm will be indicated.
Therefore, if there is no fan (as in a 5W /60W/120W SSPA) the FAN Fault should be disabled, with ASCII command SFE0.
Similarly, if the 5700 converter is being used in a large earth station with completely independent LNA and HPA systems, the 5700 LNA and SSPA alarms can be disabled.
It is also important, therefore, to ensure when setting up a conventional 5700 system that the LNA and SSPA alarms (and FAN, if fitted) are enabled.

18. 5560 Hand-Held Controller Super-convenient set-up tool
Easily fits in technician’s tool box
Programs all operating parameters of the with a simple, intuitive menu
Simply ensure ‘RS232’ and ‘ASCII’ are selected on the front of the 5700, and plug in the 5560.
The 5560 makes quick work of setting up a It may not even be necessary to remove the clear cover from the front of the 5700 in the field, if the unit has its switches set to normal operating positions.
The 5560 does not monitor alarms, or equipment operating status, nor does it control two special functions that a PC can:
(1) Converter STAND-BY / ON mode selection;
(2) Microprocessor reset.
Of course, the ON mode is usually selected permanently by the front-panel switch in most installations anyway.
Note that the 5560 will establish communications with the 5700 regardless of most option switch settings. The only requirement is that ‘ASCII’ and ‘RS232’ are selected.

19. 5570 Remote Controller Indoor mount, 2RU high
Provides full M&C of the transceiver.
Operating peratmeters
Fault monitoring
Operates with either RS232 or RS422
50m Cable provided as standard
Optional lengths available
The Remote Controller 5570 provides a monitoring and programming facility for the C-Band Transceiver and Ku-Band Transceiver.
The remote controller allows you to display and change the operating status and all operating parameters of the transceiver.
Using the remote controller is simple and does not require you to know the ASCII commands, command data or command structure used in direct serial control and monitoring of the transceiver.
An in-built security function is available to prevent unintended or unauthorized changing of the transceiver parameters.
The remote controller is compatible with all converters with different frequency ranges.

20. More on Serial Control...
Illegal commands Certain hardware configurations will prohibit the use of certain serial commands.
Output Commands Wide range of commands to invite a response from the 5700 of a single parameter or operating state.
Packet Protocol Variety of packet protocols to suit common Network Management Systems.
Illegal Commands
(a) On wideband (80MHz IF bandwidth) 5700 you can NOT select 70MHz IF.
(b) On single-synthesiser units remember that the receive frequency is FIXED at 2225MHz below the transmit frequency. You can not, therefore, independently set the receive frequency.
Output Commands
A wide range of output commands are provided, designed to enable easy computer control of the transceiver. Full details are given in the 5700 User Manual.
Packet Protocol
The User Manual describes the basic Codan packet protocol. However, Codan can provide detailed specifications of the other packet protocols available in the These options allow ready interfacing to a range of station and network management systems, with a simple set-up change to the 5700.

21. Integrating the 5700 with your station design
Overall transmit gain is adjustable from 35 to 65dB (nom) for 60/120W systems, 44 to 74dB (nom.) for 10/20/30/40W systems, or 41 to 71dB (nom.) for 5W systems.
Overall receive gain is adjustable from 70 to 100dB (nom.), assuming an LNA gain of 55dB.
Before installing the system, it is important to do a simple level diagram to of the station line-up. An example is shown below:
Note that both the modem and 5700 have been left with an adjustment margin. If there was concern of VHF interference being picked up on the IF co-ax, a higher level could be sent from the modem and more transmit attenuation set at the 5700.