IZT S800E User Manual - Innovationszentrum für ...

IZT S800E
User Manual

Copyright
© I n n o v a t i o n s z e n t r u m
T e l e k o m m u n i k a t i o n s t e c h n i k G m b H
T h e i n f o r m a t i o n c o n t a i n e d i n t h i s d o c u m e n t
i s p r o p r i e t a r y t o I Z T a n d s h a l l n o t b e
d i s c l o s e d b y t h e r e c i p i e n t t o t h i r d p a r t i e s
w i t h o u t t h e w r i t t e n c o n s e n t o f t h e c o m p a n y .
T h e s o f t w a r e d e l i v e r e d w i t h t h e p r o d u c t m a y
n o t b e d i s a s s e m b l e d o r e v a l u a t e d e x c e p t w i t h
t h e w r i t t e n p e r m i s s i o n o f I Z T .
Publisher
I n n o v a t i o n s z e n t r u m
T e l e k o m m u n i k a t i o n s t e c h n i k G m b H I Z T
A m W e i c h s e l g a r t e n 5
9 1 0 5 8 E r l a n g e n
G e r m a n y
F a x : + + 4 9 - ( 0 ) 9 1 3 1 - 4 8 0 0 - 1 9 0
© 2 0 0 7
O r d e r n o . : 2 3 5 5 9 0 _ O M
E d i t i o n : 0 5 / 2 0 0 7
P r i n t e d i n G e r m a n y
ii
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Table of Contents
1 General safety Instructions 6
1.1 Correct usage 6
1.2 Power supply voltage 6
1.3 Faults 7
1.4 Repairs 7
2 Introduction 8
2.1 System concept 8
2.1.1 Digital satellite communication systems 8
2.1.2 Why use a satellite and a terrestrial signal? 9
2.1.3 Waveforms 9
2.2 Networks 10
2.2.1 Sirius Satellite Radio 10
2.2.2 XM Satellite Radio 10
2.3 General concept 11
2.3.1 Overview 11
2.3.2 Hardware overview 11
2.3.3 Setting possibilities 12
3 Facilities for signal generation 14
3.1 Parameters 14
3.1.1 File 14
3.1.2 Mode 15
3.1.3 Delay 15
3.1.4 Frequency 17
3.1.5 Power level 17
4 Facilities for signal impairments 18
4.1 Additive White Gaussian Noise 18
5 Getting started 20
5.1 Unpacking, packing and transportation 20
5.1.1 Unpacking 20
5.1.2 Packing for transport and storage 20
5.2 Connecting the S800E 22
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5.2.1 IZT S800E front view 22
5.2.2 IZT S800E rear view 23
5.2.3 Setting up the system 23
5.3 Switching ON and OFF 24
5.3.1 Turning on the instrument 24
5.3.2 Powering up the instrument 25
5.4 Graphical user interface 26
5.4.1 Overview 26
5.4.2 Status concept 27
5.4.3 Status panel 28
5.5 Menus structure 29
5.5.1 Control group keys 30
5.5.2 Settings group keys 39
6 Operation 41
6.1 Calibration 41
6.1.1 Auto calibration 41
6.1.2 Factory calibration 41
6.2 Signal generation 42
6.2.1 Generating a signal 42
6.2.2 Adjusting the power of the carrier 46
6.3 Delay and frequencies of the satellites 47
6.3.1 Changing the frequency 47
6.3.2 Adjusting the delay 47
6.4 Noise 47
6.4.1 Generating noise 47
6.4.2 Switching off noise 47
6.4.3 Changing bandwidth 48
6.4.4 Changing frequency 48
7 Settings 50
7.1 Storing setups 50
7.1.1 Preset 50
7.1.2 Save 50
7.1.3 Recall 50
7.2 10MHz reference 50
7.3 Configuration of remote ports 51
7.3.1 GP-IB 51
7.3.2 RS232 51
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8 Maintenance 52
8.1 Operating system SuSE (Linux) 52
8.1.1 Exit to the OS, Starting the GUI 52
8.1.2 Shutdown SuSE without the GUI 53
8.1.3 Copying files 53
8.1.4 File structure 54
8.2 Recovery/Update process 55
8.2.1 Overview 55
8.2.2 SuSE 56
8.2.3 Hardware 57
8.3 Network configuration 58
8.3.1 Company network 58
8.3.2 MAC address 58
9 Error messages 60
9.1 General errors 60
9.2 Modulator Cards 61
10 Technical data 63
11 Appendix 64
11.1 Optional keys 64
11.2 Parameters 66
11.3 Certificates 68
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1 General safety Instructions
The IZT S800E was shipped in perfect condition. To ensure that this
condition is maintained and that operation is safe, please follow the
instructions in this section carefully.
1.1 Correct usage
• This device may only be used under the conditions and for the
purpose for which it was constructed.
• The purpose is outlined in the »Introduction« section.
Environmental conditions are defined in the »Technical data«
section. Users should be specialists or trained operators familiar
with the legal requirements.
• The warranty will be void under the following conditions:
− if the casing of the IZT S800E is opened without
authorization or without protecting the interior from
moisture, dust etc.
− in the event of malicious damage
− in the event of gross negligence in operation, such as the use
of input power and voltage levels that are too high or by
operating the instrument from too high or too low a supply
voltage
− in the event of electrical discharge
− if non-approved cables or connectors are used
Otherwise, our normal warranty and liability terms apply.
1.2 Power supply voltage
• The IZT S800E is powered from an AC line with a frequency of
47-63Hz and a voltage of 100–240V. The operating current is
up to 4A. The AC line cord must contain a protective ground
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conductor. The IZT S800E must always be connected to the
protective ground.
• If the casing is opened or damaged, it is possible that internal
parts carrying dangerous voltages may be exposed. Capacitors
in the device may retain a charge even long after the
instrument has been disconnected from all voltage sources.
• Make sure that the IZT S800E is not connected to the AC line
before opening the casing.
1.3 Faults
If you suspect that the IZT S800E is no longer safe to use, take it out
of service and secure it against unintentional operation. This applies in
the following cases:
• The instrument is visibly damaged.
• The instrument is exposed to stresses of any kind which are
outside the permitted limits.
• The instrument has been handled roughly during transport or
has been stored under unsuitable conditions.
1.4 Repairs
Unauthorized repairs or alterations are dangerous and may damage the
IZT S800E. If maintenance or repair is necessary, please direct your
inquiries to your distributor or to the address given under »Publisher«
on page ii.
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2 Introduction
The purpose of the IZT S800E is to generate a type of signal that
would be available when traveling in the continental US.
The instrument provides one network available in the continental US:
either Sirius Satellite Radio or XM Satellite Radio.
2.1 System concept
2.1.1 Digital satellite communication systems
Fig. 1
Digital satellite communication systems
The studio transmits the signal including all channels to the satellites.
These convert the received signal from the uplink to the downlink
frequencies allowing radios to receive the content of the channels via
satellite.
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Simultaneously terrestrial repeaters receive the signal and re-transmit
these with a different waveform better suited within cities.
2.1.2 Why use a satellite and a terrestrial signal?
Regarding the satellite radio system the US may be divided into two
areas:
Large parts of the US may be reached with the satellite signal. The
satellite signal is received with little power as creating a signal with
more power would reduce the life cycle of the satellites. The
advantage of the satellite signal is the coverage of the complete US
continent.
Within cities the satellite signal will suffers blocking and multipath
propagation. Therefore for the terrestrial signal a different modulation
is used which is better suited for this complex situation. As the
repeaters are connected to a power line and can consume far more
power the transmission power is increased.
Typically the radio will receive the satellite signal with a power level of
about –90dBm and the terrestrial signal with more than –40dBm.
2.1.3 Waveforms
Satellite signal
The satellites for both Sirius and XM are modulated using the
Quadrature Phase Shift Keying (QPSK) which is a digital modulation
which simultaneously sends two bits per symbol. Therefore the
necessary bandwidth to transmit the signal is reduced to the half of
the bandwidth needed to directly transmit the signal.
Terrestrial signal
The terrestrial repeaters decode the received satellite signal and retransmit
them by modulating the content with a modulation called
Coded Orthogonal Frequency Division Multiplexing (COFDM) in case of
the SIRIUS network and with a modulation called Multi-Carrier
Modulation (MCM) in case of the XM network.
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Both networks use multi-carrier modulation methods who allow to
transmit several bits per symbol at the time. The concept of these
waveforms include mechanism which allow the detection and recovery
from errors more easily, therefore this signal form is often used in
areas with multipath propagation and blocking.
2.2 Networks
2.2.1 Sirius Satellite Radio
The SIRIUS Satellite Radio system operates in the frequency range of
2320...2332.5 MHz. It uses two QPSK modulated beams (TDM1 and
TDM2) and a COFDM signal.
Fig. 2
Frequency range of the SIRIUS network
TDM1 and TDM2 are transmitted from a constellation of three HEO
satellites in an elliptical geosynchronous orbit. The two satellites in the
most favorable position are transmitting, while the third one is muted.
The COFDM signal is transmitted from terrestrial repeaters operating
in a single frequency network. They are used to augment the satellite
signals in dense urban areas. The receiver decodes all three signals if
available and performs diversity, combining for optimum reception.
2.2.2 XM Satellite Radio
The XM Satellite Radio system uses the frequency range
2332.5...2345 MHz. It has two geostationary satellites. The program is
divided into two ensembles A and B. Each ensemble is transmitted via
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two QPSK modulated satellite signals (SAT1A/SAT2A and SAT1B/SAT2B)
and a multicarrier signal from a terrestrial repeater network (MCM A
and MCM B).
The XM receiver can decode one ensemble at a time or both ensembles
simultaneously by diversely combining the three signals of the
ensemble.
Fig. 3
Carriers of the XM radio signal
2.3 General concept
2.3.1 Overview
The IZT S800E is capable of generating the complete signal for one
network, this means satellite 1, terrestrial and satellite 2 for Sirius and
satellite 1A, satellite 1B, satellite 2A, satellite 2B, terrestrial A and
terrestrial B for XM.
2.3.2 Hardware overview
The S800E consists of a notebook allowing the user to configure the
system and the modulator hardware which generates the SDARS signal.
The notebook is connected with a LAN cable to establish the
connection to the modulator hardware.
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2.3.3 Setting possibilities
On-the-fly vs. halted parameters
When generating the signal, the system distinguishes between socalled
on-the-fly and halted parameters.
On-the-fly-parameters may be altered while the signal generation is in
progress. A change to these parameters can be configured without the
need to stop the device. An example is the change in a carrier's power
level.
Halted parameters need the signal generation to stop before altering
the value. Changing the delay of the carriers is an example of a
parameter which cannot be accomplished on-the-fly.
Configurable parameters
Regarding the signal generation, the user may configure the following
parameters:
• Selecting an input file
• Altering the delay of each carrier
• Configuring a frequency offset
• Varying power level
• Starting signal generation
Regarding the signal impairment, the user may configure the following
parameters:
• Configuring additive white Gaussian noise (AWGN)
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User interaction
Most parameters of the signal generation are interrogated by using a
separate dialog.
Fig. 4
Query dialog to enter a parameter
The user enters the desired value and presses a key of the numerical
block depending on the dimension.
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3 Facilities for signal generation
This chapter explains which parameters effect the generation of a
perfect signal.
3.1 Parameters
3.1.1 File
The IZT S800E uses an online signal generation. Music, video and data
are pre-coded at the studio and then these files may be used to
generate a signal.
Fig. 5
Online signal generation
Out of these pre-coded files the IZT S800E generates the signal (Sirius
or XM depending on the IZT S800E at hand). The advantage of this
concept is that the input files are of much smaller size than with an
arbitrary waveform generator concept: the SIRIUS signal needs about
1.5MB/s (including overlay information), the XM signal about
2.66MB/s. Next parameters may be changed online, e.g. the power
level can be changed without the need to load new data into the
system.
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From the list of input files, the user may select the desired one and
can enable or disable the file streaming. If the file streaming is in
progress, only on-the-fly parameters can be changed.
Data for the Sirius signal is combined into a single file with the
extension *.te1.
For XM, each ensemble requires a separate file with the extension
*.tdm.
3.1.2 Mode
The mode of each carrier can be changed.
Available modes are:
• OFF to mute the carrier
• CW to generate a continuous wave form (sine)
• ON to enable the signal generation using the source file.
Changing the modes allows the user to quickly disable a single carrier.
The CW mode is mainly used in automated tests to verify the power
accuracy and is of no use for end users.
3.1.3 Delay
The delay may only be altered in case the signal is stopped.
Within the SIRIUS network the second satellite and the terrestrial
signal is delayed by about 4s.
The XM satellites need to be configured with no delay, the early and
late of the satellites is included in the coding. The terrestrial repeaters
receive the early satellite and decode the signal. From the point where
the repeater could send the terrestrial signal, a so called preprocessing
delay may be inserted which represents the time amount necessary to
generate the terrestrial signal.
The concept described above allows the radio to combine all signals to
one and create audio data even if a blockage of all carriers occur.
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Fig. 6
Diversity combining
The figure above shows the how the radio may continue to generate a
signal in case both satellites are blocked for a short period of time: at
the beginning both satellites are visible and the radio is capable of
filling its internal buffers. The radio uses the late satellite to generate
the audio signal. Suddenly both satellites are blocked e.g. by driving
through a tunnel. Now the radio switches to the internally buffered
signal of the early satellite. As soon as both satellites are visible, the
radio may refill its internal buffers and switch back to the late
satellite.
As user changing the delay makes sense to simulate different satellite
locations for SIRIUS or to simulate the current position within the US
for XM.
The delay for the SIRIUS satellite1 ranges from 228 to 322ms, for
satellite2 from 4396.582375 to 4490.582375ms depending on the
position of the satellites.
For XM the delay may be configured from –6ms (west coast) to +6ms
(east coast).
When presetting the system, the delay is configured to the real
network delay values.
The delay may only be altered in case the signal is stopped.
For XM there is no need to reconfigure the delay as satellite 1A and
satellite 1B are physically one satellite and therefore the same delay
applies to them.
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For Sirius the delay setting is useful to configure the delay difference
between the two satellites. The delay for the Sirius satellite1 ranges
from 228 to 322ms, for satellite2 from 4396.582375 to
4490.582375ms depending on the position of the satellites.
When presetting the system, the delay is configured to the real
network delay values.
3.1.4 Frequency
Changing the frequency offset allows the user to compensate a
frequency offset of the IZT S800E and the device under test. Next this
feature can be used to simulate the aging of the radio, after several
years the radio will no longer receive the signal at the correct
frequency. This can be simulated by mistuning the IZT S800E.
The default frequencies of the system are as follows.
The Sirius carriers are available at:
• 2322.293 MHz for satellite 1
• 2326.250 MHz for terrestrial
• 2330.207 MHz for satellite 2
XM default frequencies reside at
• 2333.460 MHz for satellite 1 ensemble A
• 2335.300 MHz for satellite 2 ensemble A
• 2337.490 MHz for terrestrial ensemble A
• 2340.020 MHz for terrestrial ensemble B
• 2342.200 MHz for satellite 2 ensemble B
• 2344.040 MHz for satellite 1 ensemble B
3.1.5 Power level
The output power level can be configured for each carrier allowing the
simulation of different reception situations. A power level offset
applies to all carries to compensate cable losses.
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4 Facilities for signal impairments
Each communication channel is disturbed by random signals
superimposing the transmission.
4.1 Additive White Gaussian Noise
Additive White Gaussian Noise (AWGN) may be added to the signal.
This feature is used to simulate a noise floor present in each
communication channel.
Ref -30 dBm
-30
*Att 0 dB
*RBW 100 kHz
*VBW 300 Hz
SWT 1.35 s
-40
A
1 AP
VIEW
2 AP
VIEW
-50
-60
-70
PRN
-80
-90
-100
-110
-120
-130
Center 2.33875 GHz
2 MHz/
Span 20 MHz
Date: 10.JAN.2007 14:12:18
Fig. 7
The original signal (blue) and the additive white gaussian noise (black)
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F a c i l i t i e s f o r s i g n a l
i m p a i r m e n t s
Actually, the system can only configure the noise density of the signal
No. in dBm/Hz for each RF output. Nevertheless, the graphic user
interface supports the user in specifying C/N or C/No, allowing locking
to one carrier. In this operation mode, the instrument locks C/N, and if
the user increases the power of the corresponding carrier, the noise
density is adapted as well. If the limits of the noise are reached, the
power level of the carrier has changed and the noise density remains
on the previous settings.
Fig. 8
AWGN settings of the S800E
[1] Noise density of the RF1 output
[2] Power level of the carriers
[3] LOCK indicator
[4] C/No of the carriers
[5] C/N of the carriers
Whether the noise is locked to noise density or as C/No, C/N regarding
a carrier is displayed by the asterisk. When entering a C/N for
satellite 1, the lock mode will automatically be placed to this carrier.
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5 Getting started
5.1 Unpacking, packing and transportation
5.1.1 Unpacking
Checking for transport damage
After unpacking the IZT S800E, check it for transport damage. Such
damage is likely if the packaging itself has been severely damaged. Do
not attempt to use a device which is visibly damaged, as this may
result in further damage to the IZT S800E and may be dangerous (refer
to the safety instructions).
Parts delivered
• IZT S800E Notebook (including power cord)
• IZT S800E Modulator Hardware
• Power cord for Modulator Hardware
• LAN cable to connect the notebook and the modulator
hardware
• Recovery DVD
• User manual (this document)
• Programming manual
• Test certificate
5.1.2 Packing for transport and storage
If the IZT S800E is to be shipped, e.g. for repairs, follow the
instructions below to ensure that damage does not occur during
transport.
• Preparing the IZT S800E for transport
• Packing
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Use suitable packaging that protects the IZT S800E against shocks and
moisture.
Compile a list of all parts and place this list along with your IZT S800E
in the packaging.
Storage under damp conditions
If transport is likely to take a long time or if the IZT S800E is to be
stored for a long period under conditions where high air humidity is
likely, it is necessary to ensure that the instrument is properly screwed
shut and it is recommended to protect the IZT S800E against moisture
using suitable packing materials.
Operation after storage and transport
Storage and transport can subject the IZT S800E to severe stresses.
Refer to the safety instructions and all instructions in the »Unpacking,
packing and transportation« section.
Temperature, condensation
Before switching on the IZT S800E, make sure its temperature is within
the allowed range of 5 to 40°C (refer to section 10).
When the instrument is brought from a cold to a warm environment,
its surfaces may be coated by a film of condensation. To prevent any
damage, wait until all signs of condensation on the IZT S800E surfaces
have disappeared before opening it or connecting it to the power
supply.
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5.2 Connecting the S800E
5.2.1 IZT S800E front view
The following picture gives an overview of the notebook and the
modulator hardware of the IZT S800E.
Fig. 9
Front view
[1] Service port
[2] LAN connector
[3] Status LEDs
[4] 10MHz reference
[5] RF connectors (radio)
The user will use the notebook to configure the modulator hardware
of the IZT S800E. The two components are connected by a LAN cable
which must not be disconnected during operation.
Status LEDs [3] indicate if the hardware operates correctly and if a
signal is currently generated. The user connects the radio to one of the
RF connectors [5] where the signal is generated.
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5.2.2 IZT S800E rear view
Fig. 10 Rear power connector
[1] AC line
[2] Main ON/OFF switch
The power connector needs to be connected on the rear side of the
IZT S800E. With the main ON/OFF switch is used to power up the
modulator hardware of the unit.
5.2.3 Setting up the system
Connecting the Modulator Hardware to the Notebook
Use the provided LAN cable to connect the modulator hardware to the
notebook. Connect the cable to the LAN interface of the notebook and
the LAN connector of the hardware (Fig. 9/2).
Connecting the radio
Use an N-type to SMA adaptor and an SMA cable to connect your radio
to the RF output of the according network. The RF output port is DCdecoupled,
so there is no need for additional external DC-blocking.
The ports can handle DC voltages up to 200V.
Plug the cable to your radio and power up the radio.
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Fig. 11 Connecting the radios to the S800E
Later on after starting the signal generation the radio will update its
channel list.
Note Do not use BNC cables and connectors, these are not suited
for the frequency range of SDARS
5.3 Switching ON and OFF
5.3.1 Turning on the instrument
To power down the IZT S800E follow this sequence:
1. Make sure the main ON/OFF switch (Fig. 10/2) of the device (located
at the rear) is set to OFF.
2. Connect the power cord to the AC line (Fig. 10/1).
3. Connect the LAN cable as described above.
4. Press the main ON/OFF switch (Fig. 10/2) on the rear.
The upper status LED on the modulator board (Fig. 9/3) should
change to red and after a few seconds to green.
5. Power up the Notebook
Note The modulator hardware must be booted before the
graphical user interface starts
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5.3.2 Powering up the instrument
To power up the IZT S800E follow this sequence:
6. Press the main ON/OFF switch (Fig. 10/2) on the rear.
The upper status LED on the modulator board (Fig. 9/3) should
change to red and after a few seconds to green.
7. Power down the Notebook by pressing the ON/OFF switch
Note It does not matter if the notebook or the modulator
hardware is turned off first
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5.4 Graphical user interface
5.4.1 Overview
Fig. 12 Graphical user interface
[1] Group panel
[2] Status panel
[3] View
[4] Menu panel
[5] View panel
[6] Indication of switching menu pages
The graphical user interface has four panels and one view:
The group panel can be used to switch to different operation groups.
The interface then changes its behavior by replacing the view and the
menu according to the selected group.
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The menu panel can then be used to navigate through the menu
structure belonging to this group. When navigating through individual
menus, the view will be replaced to provide feedback only on those
topics which the user is currently interested in.
Some view support the configuration of the view, this can be done
using the view panel.
The status panel informs the user about the current status. It is always
visible and helps identifying the current status of the system.
5.4.2 Status concept
When pressing the SYSTEM group, the user will navigate to the status
view, which displays the current status of the system. This SCPI-like
status displays the Event/Error queue. While querying, the status will
remotely remove an entry from the list; entries within the list of the
graphical user interface must be confirmed by the user before they
disappear.
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5.4.3 Status panel
Fig. 13 Status panel
The status panel provides the following information:
Clock
Icon
Status page feedback:
Description
The current time as configured in SuSE.
As soon as the status of the system changes,
the status page feedback informs the user
about the change.
No status available, system operating
normally
Check status page
Signal generation:
When activating the signal generation, the
system starts filling buffers and searches for
synchronization sequences. A signal is
therefore not instantly available at the
output.
Signal generation has currently ceased.
…
…
Either signal generation is activated but the
signal is not yet available at the output or,
during signal playback, an error has occurred
and the signal is of poor quality or is invalid.
A signal is currently being generated and is
available at the output.
…
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10 MHz reference: This status informs the user about the status
of the 10 MHz reference.
The system is configured to the internal
10 MHz reference, the 10 MHz are available
at the 10 MHz port of the modulator card.
The user has switched to 10 MHz reference
but the modulator card has not yet locked to
the external 10 MHz or has lost the lock.
(red)
The system is configured to external 10 MHz
and has locked to the signal provided at the
10 MHz reference port.
(green)
5.5 Menus structure
Most parameters of the signal generation are queried by using a
separate dialog. In the tables below, these dialogs are identified by an
asterisk (*).
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5.5.1 Control group keys
Signal
The signal page is used to create a perfect SDARS signal. The user can
configure all settings necessary to create the complete SIRIUS and XM
signal.
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SIGNAL (SIRIUS)
INPUT
MODE
DELAY
FREQ
RF PWR
TEI1*
STOP
START
SAT1, TERR, SAT2
OFF
CW
INPUT
OVLY
OFF
ON
SAT1*
TERR*
SAT2*
OFFSET*
RF1 SAT1*
RF1 TERR*
RF1 SAT2*
RF1 OFFSET*
RF2 SAT1*
RF2 TERR*
RF2 SAT2*
RF2 OFFSET*
Search for file name for the input file
Stop signal generation
Start signal generation
Switch off carrier
Switch carrier to CW (sine tone)
Generate genuine signal
(only with OVERLAY OPTION)
Disables Overlay
Enables Overlay
Enter this carrier's delay
Enter a frequency offset
Enter the power for the RF1 output of
this carrier
Enter the power level offset for RF1
Enter the power for the RF2 output of
this carrier
Enter the power level offset for RF2
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INPUT
MODE
DELAY
FREQ
RF PWR
SIGNAL (XM)
TDMA*
TDMB*
STOP
START
Search for file name for the input file
for Ensemble A
Search for file name for the input file
for Ensemble B
Stop signal generation
Start signal generation
SAT1A, SAT2A, TERRA, TERRB, SAT2B, SAT1B
OFF
CW
INPUT
Switch off carrier
Switch carrier to CW (sine tone)
Generate genuine signal
Note: The delay can only be adjusted
for Ensemble A and B together
SAT1A* Enter the delay of satellite 1
SAT2A* Enter the delay of satellite 2
TERRA*
OFFSET*
RF1 SAT1A*
RF1 SAT2A*
RF1 TERRA*
…
RF1 OFFSET*
RF2 SAT1A*
RF2 SAT2A*
RF2 TERRA*
…
RF2 OFFSET*
Enter the delay of terrestrial
Enter a frequency offset
Enter the power for the RF output of
this carrier
Enter the power level offset
Enter the power for the RF output of
this carrier
Enter the power level offset
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Impairments
The perfect signal created with the signal page can now be adapted to
a more realistic signal by introducing impairments.
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IMPAIRMENTS (SIRIUS)
AWGN
OFF
C/N
C/No
No
BW
FREQ
RF1
RF2
RF1 SAT1*
RF1 TERR*
RF1 SAT2*
RF2 SAT1*
RF2 TERR*
RF2 SAT2*
RF1 SAT1*
RF1 TERR*
RF1 SAT2*
RF2 SAT1*
RF2 TERR*
RF2 SAT2*
RF1*
RF2*
25MHz
12.5MHz
6.25MHz
3.125MHz
AWGN*
Disable noise on RF1
Disable noise on RF2
Define C/N referred to this carrier on
the RF1 output
Define C/N referred to this carrier on
the RF2 output
Define C/No referred to this carrier on
the RF1 output
Define C/No referred to this carrier on
the RF2 output
Define noise power density for RF1
Define noise power density for RF2
Sets the filter bandwidth of the noise
Shift frequency of the noise (not
possible in the case of 25MHz)
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IMPAIRMENTS (XM)
AWGN
OFF
C/N
C/No
RF1
RF2
RF1 SAT1A*
RF1 SAT2A*
RF1 TERRA*
RF1 TERRB*
RF1 SAT2B*
RF1 SAT1B*
RF2 SAT1A*
RF2 SAT2A*
RF2 TERRA*
RF2 TERRB*
RF2 SAT2B*
RF2 SAT1B*
RF1 SAT1A*
RF1 SAT2A*
RF1 TERRA*
RF1 TERRB*
RF1 SAT2B*
RF1 SAT1B*
RF2 SAT1A*
RF2 SAT2A*
RF2 TERRA*
RF2 TERRB*
RF2 SAT2B*
RF2 SAT1B*
Disable the noise generation for RF1
Disable the noise generation for RF2
Define C/N referred to this carrier on
the RF1 output
Define C/N referred to this carrier on
the RF2 output
Define C/No referred to this carrier for
the RF1 output
Define C/No referred to this carrier for
the RF2 output
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No
BW
FREQ
RF1*
RF2*
25MHz
12.5MHz
6.25MHz
3.125MHz
AWGN*
Define noise power density for RF1
Define noise power density for RF2
Sets the filter bandwidth of the noise
Shift frequency of the noise (not
possible in the case of 25MHz)
CALIBRATION
Engage calibration?
Yes
No
The unit is calibrated
No calibration occurs
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G e t t i n g s t a r t e d
SYSTEM
INFO
VERSIONS
TEMP
Version numbers of software and hardware
Temperature of the components
LOG
EXIT OS
CLEAR
View of Log files
Exit the GUI to enter the operating system
Delete error messages (also see Chapter 7 for
error messages)
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MISC
Fig. 14 List of all enabled options
Chapter 11.1 contains an overview of the possible options for the unit.
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G e t t i n g s t a r t e d
5.5.2 Settings group keys
The following functions can be generated with the Settings group
keys:
Note Refer to Chapter 11.2 for which system parameters are impaired
by Preset, Save and Recall.
Key
Save
Preset
Recall
Function
Parameter settings are saved
Default values are set
The previous settings are called up again
CONFIG
Fig. 15 Configuration page
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10MHz REF
IO
10MHz INT
10MHz EXT
GPIB
RS232
PAD*
SAD*
BAUDRATE
HANDSHAKE
Configure to internal 10MHz reference,
the 10MHz are present at the 10MHz
connector
Lock to external 10MHz reference
Enter the primary address of the port
Enter the secondary address of the port
Change the baudrate
Change the handshake
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6 Operation
This chapter will explain how to operate the S800E, how to generate a
signal and how to configure the available settings.
6.1 Calibration
6.1.1 Auto calibration
During “burn-in”, so the first month of the lifetime of a S800E, the
power level can vary and during this period we suggest to autocalibrate
the S800E once a week.
After that an auto-calibration once a month is sufficient if the power
level should be ±1.5dB. For a power level accuracy of ±3.0dB the user
needs to auto-calibrate the S800E once half a year and can use the
device 24/7.
During the auto-calibration process the internal power detector is used
to measure the attenuation and amplification of the individual stages
of the RF sections. Then the power level can be correctly configured.
6.1.2 Factory calibration
A factory calibration is recommended every two years. At IZT the
following parameters are verified and corrected:
• the power level detector of the RF section to ensure correct
power levels
• the 10MHz reference to ensure correct frequency settings
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6.2 Signal generation
6.2.1 Generating a signal
To have a signal present at the output of the S800E the user must
activate the signal generation. Choosing different input files allows
him to create an SDARS signal with different content, e.g. with
different radio channels.
XM
To generate the a signal:
1. Press the Menu key INPUT – TDMA on the display.
2. Select a file for ensemble A in the dialog field that appears, e.g.:
ces202_meta_a.tdm.
3. Press the Menu key INPUT – TDMB on the display.
4. Select a file for ensemble B in the dialog field that appears, e.g.:
ces202_meta_b.tdm.
5. Press the menu key START.
The display for signal generation in the status panel shows the
signal as it becomes stronger:
Now the user has to configure the power levels, else the instrument is
still muted:
6. Press menu key UP.
7. Press menu key RF PWR to adjust the power.
8. Press menu key RF1 SAT1A.
9. In the dialog box that appears, enter the value for power,
e.g.: –70.
10.Press the Enter key or dB(m).
The first carrier appears.
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O p e r a t i o n
11. Repeat this procedure for SAT2A, SAT2B and SAT1B.
The other three satellite carriers appear.
12.Press menu key RF1 TERRA.
13.In the dialog box that appears, enter the value for power,
e.g.: –35.
14.Press the Enter key or dB(m).
Both terrestrial carriers appear.
Fig. 16 Generate signal
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Ref Lvl
-20 dBm
-20
-30
RBW 100 kHz
VBW 300 Hz
SWT 1.7 s
RF Att 0 dB
Mixer -20 dBm
Unit dBm
A
-40
-50
1AP
-60
-70
EXT
-80
-90
-100
-110
-120
Center 2.33875 GHz
Date: 23.MAY.2007 10:23:13
2 MHz/
Span 20 MHz
Fig. 17 Signal at spectrum analyzer
SIRIUS
To generate the a signal:
1. Press the Menu key INPUT – TEI1 on the display.
2. Select file in the dialog field that appears, e.g.: DFAT-01.te1.
3. Press the menu key START.
The display for signal generation in the status panel shows the
signal as it becomes stronger:
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Now the user has to configure the power levels, else the instrument is
still muted, follow the description for Sirius above and configure the
power levels of satellite 1 and satellite 2 to –70dBm and the terrestrial
signal to –35dBm.
Selecting new input files
Sometimes it is necessary to change the input file to run different
tests, therefore halt the signal generation by pressing the menu key
STOP. Then proceed as described above.
Note When changing the input file and the new file has a
different channel list, the radios will update their channel
list automatically
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6.2.2 Adjusting the power of the carrier
Fig. 18 Adjust power of the carrier
1. Press the menu key LOCK of the carrier to be changed, e.g.:
RF1 TERR.
2. In the dialog box that appears, enter and confirm the new value.
--- or ---
Change the carrier with the cursor up/down and page up/down
keys.
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6.3 Delay and frequencies of the satellites
Note The delay and frequencies are preset so that the user does not
normally have to make any changes. The frequencies can only be
changed if the signal generation has been stopped.
6.3.1 Changing the frequency
1. Press menu key FREQ.
2. Press menu key SAT1.
3. Enter the value (see Chapter 3.1.4 for the limit values) and confirm.
6.3.2 Adjusting the delay
1. Press menu keys INPUT – STOP.
Signal generation is stopped.
2. Press menu keys DELAY – SAT1.
3. In the dialog box that appears, enter the new value (e.g. 265 ms)
and confirm with the key MHz/ms.
4. Press menu keys INPUT – START.
Signal generation starts again.
6.4 Noise
6.4.1 Generating noise
1. Generate signal (see Chapter 6.1).
2. Press group key IMPAIRMENTS.
3. Press menu keys AWGN – N0 – RF1.
4. In the dialog box that appears, enter the noise power
e.g.: –125 dBm/Hz
5. Press the key dB(m)
Noise is generated.
6.4.2 Switching off noise
Press menu keys OFF – RF1.
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6.4.3 Changing bandwidth
1. Press menu key BW.
2. Press menu key 6.25 MHz (example).
The bandwidth is changed.
6.4.4 Changing frequency
1. Press menu keys FREQ – AWGN.
2. In the dialog box that appears, enter the frequency value.
Fig. 19 Noise
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Ref -20 dBm
-20
*Att 0 dB
*RBW 100 kHz
*VBW 300 Hz
SWT 1.35 s
-30
A
1 AP
CLRWR
-40
-50
-60
PRN
-70
-80
-90
-100
-110
-120
Center 2.33875 GHz
2 MHz/
Span 20 MHz
Date: 10.JAN.2007 18:07:59
Fig. 20 Signal noise at the spectrum analyzer
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7 Settings
7.1 Storing setups
7.1.1 Preset
Pressing the preset button will stop the signal generation and will
configure the default settings of the system. These settings are listed
in chapter 11.2.
7.1.2 Save
To save the current setting press the save button.
The QUICKn buttons can be used to quickly save a setting. If the
setting should be named the user can use the bottom button ‘new’ to
create a saved setting with a certain name. The GUI will query for the
name of the setting.
7.1.3 Recall
Similar to the save procedure the user may recall the saved files.
7.2 10MHz reference
The S800E’s modulator cards can use the internal 10MHz reference or
an external 10MHz reference.
While using the internal reference the 10MHz used are outputted on
the 10MHz port of the modulator card.
To use an external 10MHz it is recommended to first connect the
10MHz and then switch to external 10MHz:
1. Press settings key CONFIG
2. Press menu keys 10MHz REF – 10MHz EXT
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S e t t i n g s
To switch back to internal reference:
3. Press menu keys 10MHz REF – 10MHz INT
7.3 Configuration of remote ports
7.3.1 GP-IB
The primary address (PAD) and secondary address (SAD) of the GP-IB
port can be reconfigured.
1. Press settings key CONFIG
2. Press menu key I/O – GPIB
3. Press menu key PAD and enter the primary address
4. Press menu key SAD and enter the secondary address
7.3.2 RS232
Regarding the RS232 connection the user can reconfigure the baud
rate and the handshake.
1. Press settings key CONFIG
2. Press menu key I/O – RS232
3. Press menu key BAUDRATE and then the desired baudrate
4. Press menu key HANDSHAKE and the desired handshake
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8 Maintenance
The maintenance chapter helps to support the usage of the S800E. It
explains how to use the operating system, how to update the system if
a new release is available and how to operate the S800E in the
companies network.
8.1 Operating system SuSE (Linux)
8.1.1 Exit to the OS, Starting the GUI
To exit to the operating system press the SYSTEM key from the
controls group keys.
The system page gets visible, here press the EXIT OS key at the menu
panel.
Now the graphical user interface closes and the main SuSE screen gets
visible.
Fig. 21 SuSE desktop
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M a i n t e n a n c e
To restart the GUI click the IZT S800E icon ONCE. SuSE like most Linux
operating systems is configured in a way that executing requires just
one click, not a double-click like known from Windows.
8.1.2 Shutdown SuSE without the GUI
Press the power ON button of the notebook for less than 4s.
8.1.3 Copying files
Fig. 22 Launching the browser or shell
The user may use the browser or the shell to copy files. Both programs
can be launched by moving the mouse to the bottom of the screen and
then execute them by clicking once on the according icon.
Using the browser
Copying files with the browser is like known in Windows. Open the file
manager by pressing the home button as shown in the picture above,
now the file manager opens at the home destination.
Browse to the DVD drive by pressing twice the up arrow, you should
now see the root directory. Here click on the media directory
containing the DVD drive. Next press the DVD drive folder to switch to
the drive. All clicks are single (not double) clicks.
Now mark all files with Ctrl+A and choose the menu Edit, Copy to
copy the files.
Move to the destination using the browser as describes above: use the
up arrow to get to the root directory, then click on the data folder to
reach the user partition of the harddisk and then choose the desired
folder (e.g. bitstream).
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At the destination choose the menu Edit, Paste to paste the files into
this folder.
Copying files in a shell
Open the shell by pressing the shell button of the task bar. Next enter
the command to copy the files, e.g.:
cp /media/dvd/* /data/bitstream
to copy all files from the DVD media to the bitstream folder of the
graphical user interface.
8.1.4 File structure
The DATA partition starts at /data and is not effected by the
recovery/update process. The user should copy any data which is
meant to remain on the system here or in any subdirectory of /data.
Path
/data
/bitstream
/options
/save_rcl
Description
Beginning of the DATA partition
Directory to copy bitstream files
Destination to copy option keys
Save/Recall files generated by the user
Bitstream files like TEI1 files for SIRIUS or TDM files for XM should be
copied to /data/bitstream. Some of these files are installed when
receiving the unit, additional ones are provided by SIRIUS and XM.
Additional options are enabled by copying option keys to the
/data/options directory. The GUI will automatically search for new keys
every 30s. Wait for the option view to update automatically to check if
your option was accepted.
Any settings saved will be generated at /data/save_rcl.
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8.2 Recovery/Update process
8.2.1 Overview
Computer
The IZT S800E’s notebook boots the operating system. The CPU is a
Pentium with 2.0GHz, as operating system a SuSE10 is running.
Modulator cards
The modulator cards are connected to the computer (and therefore to
the graphical user interface) via the LAN cable. The PC may open a
LAN connection to the modulator cards and then configure the cards
to create the signal.
Harddisk
The harddisk of the system is splitted in a way that makes it easy to
update or recover the system while the user data will remain intact.
Therefore the harddisk is partitioned in a SYSTEM partition, a SWAP
partition and the remainder is available to the user for custom data as
e.g. bitstream files, save/recall settings ...
When updating/recovering the system only the SYSTEM partition is
replaced, any data stored in the DATA partition remains as is. The
DATA partition is available as /data on SuSE. Therefore any bitstream
files, saved settings etc will still be available.
DVD drive
The DVD drive is used to update/recover the system and to copy new
files like bitstream files to the system.
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8.2.2 SuSE
The recovery/udpate process replaces the SYSTEM partition of the
S800E and will not touch the DATA partition.
First the DVD boots an independent operating system allowing full
access to the harddisk. Next from the DVD the SYSTEM partition is
copied to the harddisk, the entire partition is replaced.
The following settings are integrated in the DVD:
• SuSE operation system
• Configuration of SuSE (network settings, firewall settings)
• S800E software
• Software/Firmware for the modulator cards
To recover/update the system:
1. Boot the recovery DVD
After booting the recovery DVD the following menu is available:
Fig. 23 Menu structure of the recovery DVD
2. Select restore from menu
3. Confirm the selection
After choosing the restore menu the user must confirm the restore
request:
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Fig. 24 Confirmation of the restore command
4. Wait 10 minutes until recovery has finished
In current recovery DVDs the user does not get any feedback during
update. Future DVDs will display the copy progress of the data.
5. Select quit from menu
8.2.3 Hardware
After the SuSE recovery the S800E will boot the latest operating
system and software of the graphical user interface. Nevertheless the
modulator cards could still contain a different software/firmware
version. Therefore the GUI always first checks the versions found on
harddisk and compares them with the versions found on hardware.
If there is a difference between these version an update of the
modulator cards is proposed. The user presses update to engage the
update, the progress bars of the update show the progress of the
update. At the end of the update the system shuts down
automatically.
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Fig. 25 Update process of the hardware components
If no update is necessary, the update view will automatically skip after
15 seconds or the user may press skip to accelerate this process.
8.3 Network configuration
8.3.1 Company network
The IZT S800E cannot be connected to the company’s network, the
onboard LAN interface is used to control the modulator hardware.
The device can be remotely controlled using the RS232 interface.
8.3.2 MAC address
If requested by IZT provide the MAC address of the notebook by
switching to the SYSTEM > INFO page.
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Fig. 26 MAC address of the S800E
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9 Error messages
This chapter describes errors that can occur during operation and
provides assistance as to how the error situation can be remedied.
9.1 General errors
General errors arise when the unit is operated incorrectly, for example
by entering invalid values or by sending incorrect commands via the
remote control interface.
Error message Cause Remedy
-113, Undefined
header
-203, Command
protected
-221, Settings
conflict
-222, Data out of
range
-224, Illegal
parameter value
Invalid command was sent
to the unit. Frequently via
a remote control interface.
Option for this command
not enabled.
The delay cannot be
changed during an
activated signal
generation.
Entered value for a setting
is outside the validity
range.
Note: The developmental
unit has an extended
validity range for some
settings.
The entered value is not
approved for this
parameter.
Check syntax of
the command.
Have option
enabled.
Stop signal
generation.
Change delay.
Enter a value
that lies in the
validity range.
Enter the correct
value for this
parameter.
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Error message Cause Remedy
-241, Hardware
missing
-256, File name
not found
-350, Queue
overflow
Command requires
particular hardware for
execution that is not
present in the unit.
Example:
A command requiring an
XM modulator card is sent
via the fire wire interface.
Non-existent file was given
as the source file.
The number of possible
incorrect entries in the
status queue was
exceeded.
Retrofit
hardware.
Create file.
Check error
entries in the
status queue,
delete if
necessary.
9.2 Modulator Cards
The following errors relate to signal generation with the modulator
cards.
Error message Cause Remedy
2020, TEI1
streaming failed
(network error)
2021, TEI1
streaming failed
(fifo error)
Error in data transfer
from hard disk to the
SIRIUS modulator card
due to insufficient
calculation time on the
computer e.g., when files
are copied from DVD to
hard disk while the signal
is being generated.
Same as error 2020 –
internal data abort in the
hardware of the
modulator card.
Stop and restart
signal
generation.
Stop and restart
signal
generation.
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Error message Cause Remedy
2120, TDM
streaming failed
(network error)
2121, TDM
streaming failed
(fifo error)
Same as error 2021 –
internal data abort in the
hardware of the XM
modulator card.
Same as error 2020 –
internal data abort in the
hardware of the XM
modulator card.
Stop and restart
signal
generation.
Stop and restart
signal
generation.
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T e c h n i c a l d a t a
10 Technical data
Common
Metric
English
Temperature
• Operating 5 °C to 40 °C 41 °F to 104 °F
• Nonoperating
Altitude
-40 °C to 65 °C -40 °F to 149 °F
• Operating -305 m to 3,050 m -1,000 ft to 10,000 ft
• Nonoperating
-305 m to 12,200 m -1,000 ft to 40,000 ft
Weight approx. 25 kg approx. 56 lbs
Main supply
110 to 240V, 47 to 63Hz, max. 4A
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11 Appendix
11.1 Optional keys
List of available keys
The following features are optionally available:
Optional key
SIRIUS OVERLAY
SIRIUS SIGNAL
SIRIUS SATELLITES
Explanation
Sirius overlay modulation is supported, user can
switch between legacy and overlay modulation.
For generating a genuine Sirius signal of the
Sirius modulator card. Without this key, only a
spectral representation of the signal is
generated
Allows the configuration of both satellite
signals.
SIRIUS TERRESTRIAL Allows the configuration of the terrestrial
signal.
SIRIUS OVERLAY
Activates the overlay functionality of Sirius.
XM SIGNAL
XM SATELLITES
XM TERRESTRIAL
For generating a genuine signal of the XM
modulator card. Without this key, only a
spectral representation of the signal is
generated
Allows the configuration of both satellites (all
four carriers).
Allows the configuration of the terrestrial signal
(both carriers).
Copy option key into the system
This chapter describes how to copy option keys to the instrument
when received by e-mail. CDs will include an easier automatic way to
copy the keys described in the booklet of the CD.
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A p p e n d i x
To copy new keys to your system execute the following steps:
1. Copy option key to data carrier, e.g.: USB stick.
2. Copy to the system with the command
cp /media/usb{TAB}/*.key /data/options
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11.2 Parameters
The following list gives an overview of the parameters of the S800E
and provides information about which of these parameters are
affected by Save, Recall and Preset.
SIRIUS
Parameter
Save
Recall
Preset
Signal, Filename
Signal, Input STREAM TEI1 | STREAM
Signal, Delay,
Satellite1 [ms]
Signal, Delay,
Terrestrial [ms]
Signal, Delay,
Satellite2 [ms]
Signal, Frequency,
Offset [MHz]
Min
Limits
Manufacturing Unit
Max
275.000000 228.000000 322.000000
4456.582375 4456.582375 4456.582375
4443.582375 4396.582375 4490.582375
0.0 -0.045 0.045
Signal, Mode INPUT OFF | CW | INPUT
Signal, Power Level
RF1 [dBm]
Signal, Power Level
RF2 [dBm]
-110.0 -110.0 -15.0
-110.0 -110.0 -15.0
Impairments, AWGN,
Power Level
RF1 [dBm/Hz]
Impairments, AWGN,
Reference carrier
Impairments, AWGN,
Mode
-174.0 -174.0 -105.0
SAT1
No
Config, Ref10MHz INTERNAL INTERNAL | EXTERNAL
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XM
Parameter
Save
Recall
Preset
Signal, Filename
Signal, Delay,
Satellite1 [ms]
Signal, Delay,
Terrestrial [ms]
Signal, Delay,
Satellite2 [ms]
Signal, Frequency,
Offset [MHz]
Min
Limits
Manufacturing Unit
Max
0.0 -6.0 6.0
20.0 10.0 30.0
0.0 -6.0 6.0
0.0 -0.045 0.045
Signal, Mode INPUT OFF | CW | INPUT
Signal, Power Level
RF1 [dBm]
Signal, Power Level
RF2 [dBm]
-110.0 -110.0 -15.0
-110.0 -110.0 -15.0
Impairments, AWGN,
Power Level
RF1 [dBm/Hz]
Impairments, AWGN,
Reference carrier
Impairments, AWGN,
Mode
-174.0 -174.0 -105.0
SAT1A
No
Config, Ref10MHz INTERNAL INTERNAL | EXTERNAL
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11.3 Certificates
EU Declaration of Conformity
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