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17 Echo / Guard interval

Available only for DVBT/H, DVB-T2 or DVB-C2 standards.

Pressing

allows you to access to

Echo Guard interval measurement.

Pressing changes the horizontal scale (distance).

Horizontal scale can be set in µs, km or miles by pressing

Moving measurement arrow

can be done by screen touch, or by automatic search keys

and

The end of the guard interval is displayed with a yellow line.

Reminder:

Remember: In terrestrial TV broadcasting, the received signal on the antenna comes from several possible
ways: the

echoes

In digital TV DVB-T/H and DVB-T2, these echoes may help or degrade the image according to the time de-
lay between the various signals that reach the antenna.

Signal without echo

Signal with echoes and pre-ech-

oes

Содержание 7859

Страница 1: ...t laws as un pub lished works They are confidential and proprietary to Dolby laboratories Their reproduction or disclosure in whole or in part or the production of derivative works there from without...

Страница 2: ...7859 p 2 Revision follow up Version Date Modified chap ters Detail of change update 1 0 March 2017 All First document created...

Страница 3: ...ces To obtain the best performance from this product please read this manual carefully For more information please contact our different services 04 77 59 01 01 E mail Sales department sales sefram fr...

Страница 4: ...ning duration of the guarantee if the appliance is still under guarantee If the guarantee duration is less than 90 days the replaced part is guaranteed for 90 days Any replacement part becomes the pro...

Страница 5: ...DC should have been working for 0 5 hour before check We recommend that you have this control made by our after sales service Service Apr s Vente for the best service and preser vation of the measurin...

Страница 6: ...Power up 23 4 1 Battery 23 4 2 Battery charge 23 4 3 External power supply 24 4 4 Turning the appliance on and off 24 5 Man machine interface 25 5 1 Content of the screen 25 5 2 Changing name or value...

Страница 7: ...63 14 Image and Sound 64 14 1 Digital TV 64 14 2 Full screen mode 64 14 3 Audio 65 14 4 Table of services 65 15 Remote power supply LNB DiSEqC 66 15 1 Terrestrial band 66 15 2 Satellite band 67 15 2 1...

Страница 8: ...Connection of the appliance to a PC 93 24 Displayed messages 95 24 1 Alert messages 95 24 2 Error messages 96 25 Maintenance 97 26 Technical specifications 99 26 1 Technical specifications 99 26 2 Dig...

Страница 9: ...efram spare parts Do not open the appliance risk of electric shock You should use the F F adaptor provided with your measuring instrument Any other adaptor could damage your appliance and jeopardizes...

Страница 10: ...the manual Shows a risk of damage for the material connected to the in strument or to the instrument itself Ground Grounded accessible parts Product for recycling 1 4 Conformity and restrictions of t...

Страница 11: ...n This requires a soft handling No glove and no stylus should be used so that the triggering should be taken into account You will recognize the keys by their dark grey color example the home key You...

Страница 12: ...antenna in RF mode In this case the Autoset function allows a scan of the channels that the antenna detects Plug the cable of your antenna to the 7859 appliance WARNING use an adequate adaptor The an...

Страница 13: ...ppliance makes measurements continuously C N level then BER MER on the detected channels If no channel has been found see the next chapter To finish press the home measurement key then on On this new...

Страница 14: ...tenna Use of the spectrum Use of the satellite dish 2 2 2 1 Use of the spectrum Plug the cable of your antenna to the 7859 take care to use an adequate adaptor Turn your appliance on Press the Measure...

Страница 15: ...ctrum the cursor moves to where you press Press the NIT key the device find automatically all the parameters of the signal Once the search ended the device display the Network Name and the Network ID...

Страница 16: ...e gets an Antenna pointing mode in order to align quickly and easily your terrestrial antenna To access to the Antenna pointing mode from the HOME page press The following page appears Set your emitte...

Страница 17: ...ferent French transmitters in an Excel file available on the website of SEFRAM download section then database transmitters TNT or by clicking under the fol lowing link http www sefram com telechargeme...

Страница 18: ...ey Average reception quality 50 orange smiley Good reception quality 50 green smiley 2 2 3 Installation of a satellite dish Connect the satellite dish to the appliance Activate the remote power supply...

Страница 19: ...des a list of satellites Select a satellite like in the example below here Astra1 Slowly orientate the satellite dish until hearing the locking melody and getting the best quality No found transponder...

Страница 20: ...ponders are regularly modified See the frequency range of the satellite when a transponder does not seem to work Some switches or LNB work only with DiSEqC commands In this case position the band OL a...

Страница 21: ...measurer In Measurement Plan mode they scan up to 50 setups at the same time and compare them to decision levels min max Equipped with an efficient Bit Error Rate measurement various BER MER they all...

Страница 22: ...ON OFF switch RF socket with F F adapter Remote supply light USB A socket Ethernet socket External power socket 15 V 5 A max Charging indicator light Optical FC APC input with protective plug RF F ou...

Страница 23: ...protective item that should not be damaged or removed Protect the pack from the heat while storing Do not damage the protective sheath of the pack Do not store the appliance in a vehicle under sunlig...

Страница 24: ...pply The power supply block provided is an external power supply too Only use the power supply block provided with the appliance Use of another mains block could damage your appliance and would not va...

Страница 25: ...859 can work in RF or optical mode You can switch from one mode to the other at start up and from the homepage The Home page allows you to navigate among all functions of the appliance You will find t...

Страница 26: ...xit a window like this one below you have to press the key Indication of the state of the battery Page title Indication of the position of the switch or of the SatCR position of the slot Display of th...

Страница 27: ...cursor with your fingers 5 2 Changing name or value 5 2 1 Changing inside a table You can select a setup in the table In this case you can validate a setup by pressing the line you want to display In...

Страница 28: ...s you to cancel and exit this window like in the example below In this example the bandwidth changes from 8 to 6 MHz 5 2 3 Change with virtual keyboard If you want to enter a name of a number a window...

Страница 29: ...ation may use two satellite dishes ASTRA 19 2 in DiSEqC position A HOT BIRD 13 in DiSEqC position B Another one may use three satellite dishes ATLANTIC BIRD 3 in DiSEqC position A ASTRA 1 in DiSEqC po...

Страница 30: ...odes A setup is made of a setup name in 8 characters a place name in 10 characters a frequency a channel number in terrestrial or cable mode a frequency map in terrestrial or cable mode a vertical or...

Страница 31: ...7859 p 31 Selecting a Setup on a measurement page automatically recalls all information associated with this setup...

Страница 32: ...nd to provide information about the current place You can access it through the key on page Home The displayed lines on this page depend on the selected Frequency band The key before the Mode line all...

Страница 33: ...e allows automatic research on the terrestrial frequency band The table allows the selection of Standards Channel widths The channel range of the research i e 21 to 60 The goal is to make researches s...

Страница 34: ...ndards Channel widths The search range of channels 6 4 START menu key No matter which mode is selected press the START key when the table is filled to launch the research Pressing Stop will abort the...

Страница 35: ...setups of the library starting from the end of the table The new list is created in the first available list The default name of the new list is AUTOSET New found channels are added one by one into t...

Страница 36: ...the list where you will work on measurements Pressing the Lists Library key gives you access to the LISTS function Lists are ranked from 0 to 19 To select the one you want press the following key List...

Страница 37: ...ine A window shows up By pressing the key before Setup you disclose the available setups from the library you cannot create a setup from a list to create a setup see Setup creation or modification in...

Страница 38: ...p from the list by pressing the check to the left of the setup or to the setups you have to delete Then click the basket and select the deletion of the selected setup You can also delete the totality...

Страница 39: ...7859 p 39 In a satellite setup you can change the switch the Uncommitted Port and the DCSS by activating any of these keys this change will affect only the setup in this list not in the library...

Страница 40: ...e LISTS function From this page you have access to the Library by pressing 8 2 Creation or modification of setups in the library To create or change a setup in the library you have to select a line in...

Страница 41: ...tandard DVB T H DVB T2 Under standard DVB C DVB C2 In terrestrial analogical standard L BG DK I and MN To enter the fre quency band you want for the setup To enter the Emit ter Satellite name you want...

Страница 42: ...42 Setup Satellite KU L or C Ku L or C corresponds to the selected band To enter the type of polarity you want for the setup high or low vertical or horizontal To enter the symbol rate you want for th...

Страница 43: ...tered 4 transponders are appended to each satellite You can select the satellite by pressing Name and position of the satellite To modify a transponder you must press the corresponding key Name and po...

Страница 44: ...ion Procedure 1 Connect the satellite dish to the appliance and start it up 2 Validate the remote power supply VDC lights up Check the power supply current of the LNB IDC at the top right corner of th...

Страница 45: ...ption quality 50 green smiley Attention To identify a satellite it must be synchronized on all 4 transponders However some transponders are regularly modified See the frequency map of the satellite if...

Страница 46: ...heck Sat This mode allows you to orientate a double LNB by checking 4 transponders on 2 selected satellites This mode is identical to the simple Check Sat mode To access the double Check Sat mode you...

Страница 47: ...h reference to the north Measured in degrees Elevation Tilt angle under which the beam from the satellite reaches your antenna Measured in degrees using what is specified on the stand of the satellite...

Страница 48: ...7859 p 48 10 TERRESTRIAL check To access to the menu terrestrial check from Home page press The following page appears Set up your check...

Страница 49: ...itters in an Excel file available on the website of SEFRAM download section then database transmitters DDT or by clicking under the following link http www sefram com telechargement fichier de configu...

Страница 50: ...7859 p 50 No found transponder red smiley Average reception quality 50 orange smiley Good reception quality 50 green smiley Press key permits to list the services distributed on the multiplex...

Страница 51: ...7859 p 51 11 The Measures TV Spectrum page TV mode SPECTRUM mode full screen Autolock Automatic search of setup...

Страница 52: ...e AutoLock function 12 1 Autolock function This function is design to lock on a digital signal terrestrial cable or satellite You just have to enter the frequency or the channel for terrestrial then p...

Страница 53: ...or the satellite The audio mode for the analogical TV 12 3 Level measurements You can measure levels at a specific frequency with a detection matching the standard In terrestrial band for an user sock...

Страница 54: ...the measurement types and the frequencies of the audio carrier waves for each standard Standard Video carrier Measure PAL FM Peak SECAM FM Peak NTSC FM Peak DVB S Digital Power DSS Digital Power DVB...

Страница 55: ...5 85 MHz I positive AM peak FM DQPSK 6 0 MHz 6 552 MHz L positive AM peak AM DQPSK 6 5 MHz 5 85 MHz MN negative AM peak FM FM 4 5 MHz 4 72 MHz DVB C digital power DVB T H digital power DVB T2 digital...

Страница 56: ...ured MER and the limit MER before disconnection of the image it s the security available before disconnection Sync displayed on screen means that the signal is absent or unlocked check its pres ence t...

Страница 57: ...bits number of transmitted bits during the measurement time PER packets error rate Ratio between the number of false packets number of transmitted packets during the measurement time Recall Under DVB...

Страница 58: ...or rate LKM noise margin Link Margin Recall LDPC Low Density Parity Check BCH Bose Chauhuri Houquenohem The concatenation Viterbi Reed Solomon of the correction of DVB T H has been replaced by the con...

Страница 59: ...Ratio between the number of false bits number of transmitted bits during the measurement time PER error rate packets Ratio between the number of false packets number of transmitted packets during the...

Страница 60: ...LDPC BERo error rate after LDPC PER error rate after BCH lost packets MER modulation error rate LKM noise margin Link Margin Recall LDPC Low Density Parity Check BCH Bose Chauhuri Houquenohem Active P...

Страница 61: ...the number of false bits number of transmitted bits during the measurement time PER error rate packets Ratio between the number of false packets number of transmitted packets during the measure ment t...

Страница 62: ...r BCH lost packets MER modulation error rate LKM Noise margin Link Margin Recall LDPC Low Density Parity Check BCH Bose Chauhuri Houquenohem The concatenation Viterbi Reed Solomon of the correction of...

Страница 63: ...level of the signals measured Filters are automatically selected according to the Span The filter used is displayed on the upper left corner Parameters of the spectrum are Channel use a chan nel for t...

Страница 64: ...Hz frame frequency MPEG 2 picture compression Video Rate 4 106 Mbits s instantaneous binary rate of the service Audio MPEG Layer II sound compression On this page there are 3 keys at the bottom of the...

Страница 65: ...ng HE AAC High Efficiency AAC License Via Licensing Dolby Digital License Dolby Dolby Digital Plus License Dolby Made under license by Dolby laboratories Dolby and the double D symbol are trademarks o...

Страница 66: ...start the remote power supply press the key after Remote supply 15 1 Terrestrial band In terrestrial mode you can select A green check shows which voltage is selected OFF to turn off the remote power...

Страница 67: ...on the LNB 22 kHz Tone Burst or DiSEqC Selection polar polarization commutation on the LNB 13 18V or DiSEqC Switch switch type and position No Tone Burst 22 kHz DiSEqC Pos A B C or D Uncommitted Unco...

Страница 68: ...15 2 1 Switches 2 satellite switch 4 satellite switch 22 kHz DiSEqC Committed or Uncommitted ToneBurst MiniDiSEqC DiSEqC Committed or Uncommitted Sat A Sat B Com 2 1 S a t A S a t B S a t D S a t C C...

Страница 69: ...ption B Position A Pos 2 Input 2 8 Pos D Option B Position B Pos 2 Input 2 9 Pos A Option A Position A Pos 3 Input 3 10 Pos B Option A Position B Pos 3 Input 3 11 Pos C Option B Position A Pos 3 Input...

Страница 70: ...Description DCSS Digital Channel Stacking system signal distribution system using frequency transposition Used in satellite distribution for multiple or single dwelling with several set top boxes To...

Страница 71: ...2 user bands 2 Modes SATCR Satellite Channel Router standard EN50494 or SCD Unicable Distribution of the satellite signal with only one coaxial cable to 2 4 or 8 different receptors SCD2 Single Cable...

Страница 72: ...es and switch PosA PosB INITIALISATIONS 8 predefined slots ITALY 4 predefined slots for Italy DETECT automatic detection of slots spectrum detect based T SCD2 EN50607 SLOT x active Slot choice CONFIG...

Страница 73: ...detection of slots DISEQC2 0 based 15 2 2 1 Influence of the DCSS on the spectrum analyzer Landmarks of the user band slot SatCR mode and active slot Current polarization and band in the active slot...

Страница 74: ...ne of these standards is running in the LEVEL MEASUREMENT page DVB T H DVB T2 DVB C DVB C2 DVB S DSS DVB S2 The appliance displays the Constellation of the current signal The information displayed on...

Страница 75: ...ent arrow can be done by screen touch or by automatic search keys and The end of the guard interval is displayed with a yellow line Reminder Remember In terrestrial TV broadcasting the received signal...

Страница 76: ...or by selecting a more di rective antenna The Echo function of the appliance enables you to display possible echoes that disturb the received signal Relative amplitude in dB and delay in s distance i...

Страница 77: ...dulator BER Viterbi VBER BCH PER packet error rate non proofread packet lost packet wrong packet UNC PER Important A bargraph above the Measurement map allows you to track the evolution of the scan Th...

Страница 78: ...7859 p 78 18 1 Out of tolerance values The digital values are colored according to the Thresholds before decision red for values less than Threshold min orange for values more than Threshold max...

Страница 79: ...ded to use this function 1 angled F F cable code 978754800 1 FC FC optical fiber jumper cable to switch from APC to PC SPC or UPC code 978754700 1 FC SC APC optical fiber jumper cable code 978754710 1...

Страница 80: ...ical signal Optical fibers are made of a core a cladding and at least one protection There are two kinds of optical fibers multimode and single mode The difference is the size of the core inside the f...

Страница 81: ...ion to an increased risk of damaging the connector there will be automatically a 4dB decrease of the optical level which means 8dB for RF Thus you will have to take great care of the connections and t...

Страница 82: ...surements everywhere on your installation to check losses of the optical signal Warning The appliance can measure only one wavelength at a time If there are several wavelengths measurements will be wr...

Страница 83: ...ently To display the signal at the output of your installation you must connect the RF output of the optical option to the RF input of the appliance via the provided angled F F cable Power your LNB no...

Страница 84: ...sh to the same socket Then you can turn your dish see chapter 2 2 3 Installation of a dish and or your terrestrial antenna see chapter 2 2 2 Installation of a terrestrial antenna Once the measurements...

Страница 85: ...to the Home page then Configuration 20 1 Language You can select your language by pressing the flag below Press the flag corresponding to your language 20 2 Frequency map This key allows you to selec...

Страница 86: ...y size are displayed When pressing this key a pull down menu lists the previously saved files The first column contains the order number of the file the second column contains the name of the file the...

Страница 87: ...3 2 Save Save BMP USB allows you to export the file to the USB stick under BMP format non compressed graph it is useful to transfer graphs to a report in a PC computer Here is the BMP file of the pre...

Страница 88: ...all BMP USB records all files from the appliance under BMP format into separated registers LEVEL for the level measurements MAP for the measurement maps SPECTRUM for the spectrum measurements BER MER...

Страница 89: ...859 p 89 20 4 Factory recovery A complete set up of the appliance under its FACTORY configuration with confirmation Attention In case of factory recovery you lose the setup library the measurement lis...

Страница 90: ...ts of your appliance by pushing Configuration Export And you can import from a USB stick this configuration with the touch Configuration import You can also update checksat antenna pointing configurat...

Страница 91: ...Turn your appliance on Go to the Home page press configuration Insert the USB stick into the connector of the appliance Select Update Attention Do not turn the appliance off while updating The updatin...

Страница 92: ...The default name of the save is MEM X 1 X is the number of saves in the appliance You will be suggested a save into internal memory only in the Spectrum Measurements Constellation Guard interval and M...

Страница 93: ...n option with the number 298504246 asking SEFRAM Configuration of the connection Ethernet connection of your appliance to the PC To change the IP address of your appliance press and The PC software in...

Страница 94: ...mask in the appli ance 3 Type the same IP address and subnet mask in the PC software you re using Attention If the PC has already been connected to Ethernet network modem it is necessary to reboot th...

Страница 95: ...ce may display messages while working 24 1 Alert messages Low battery the appliance is about to shut off in a few minutes Confirmation request for an important action Remote power supply issue voltage...

Страница 96: ...the issue 24 2 Error messages A message may show up at the bottom of the screen immediately after updating the software Do not take it into account as far as it does not show up at a second start up E...

Страница 97: ...characteristics and the preservation of the product Routine maintenance The basic maintenance is simply cleaning the outside of the appliance Any other operation requires a trained personal Unplug th...

Страница 98: ...ng of the screen on your instrument to the re spect of the acceptance conditions of the manufacturers Acceptance criteria Zone A central zone total less than 5 defective pixels less than 3 contiguous...

Страница 99: ...L SECAM NTSC Measures RF level power C N Spectrum Analyzer Fast Mode 350 ms typ 3 times s Filters according to span 100kHz 300kHz 1 MHz 1MHz 3MHz 10MHz Attenuator automatic or manual 0 to 55 dB with 5...

Страница 100: ...or multiple FFT type 1k 2k 4k 8k 16k 32k extended bandwidth auto Constellation QPSK 16QAM 64QAM 256QAM auto Viterbi rate 1 2 3 5 2 3 3 4 4 5 5 6 1 3 2 5 auto Guard Interval auto Spectrum inversion aut...

Страница 101: ...ER Link margin Modulation Error Rate MER 0 20dB Symbol rate 1 to 45Ms s Constellation QPSK 8PSK 16APSK 32APSK Modulation CCM VCM ACM Multistream stream select ISI 0 99 PL scrambling Gold code Viterbi...

Страница 102: ...terfaces USB A USB mini B Ethernet 10baseT RJ45 DC supply input jack 5 5 mm 15 V max 5 A max Remote supply Terrestrial Satellite Voltage 5V 13V 18 V 24V 500 mA max 300mA for 24V 13 18 V 500 mA max DiS...

Страница 103: ...61326 1 2013 et NF EN 61326 2 1 2013 class B basic electromagnetic environment NF EN 61010 Dimensions 250 x 165 x 65 mm Weight 1 350 kg 26 6 Accessories Supplied with main adapter battery installed us...

Страница 104: ...08 75 dBm Ud 1 mV N 60 dB V N 0 dBmV N 48 75 dBm Ud 1 V N 120 dB V N 60 dBmV N 11 25 dBm 26 8 Typical values for measurements Values given are indicatives minimum and maximum for good signal quality M...

Страница 105: ...hem Algorithm used to correct errors in transmissions of digital satellite DVB S2 signals BER Bit Error Rate Calculation of the erroneous bits with regard to the number of transmitted bits BER demonst...

Страница 106: ...he opposed polarization it should be as high as possible To adjust the counter polarization you have to turn the head of the dish DAB Digital Audio Broadcasting The Digital Audio Broadcasting is a sta...

Страница 107: ...Low Noise Block converter A LNB or universal head is a standard converter for the analogical and digital reception of a satellite The reception is made on 2 low high frequency band and 2 horizontal v...

Страница 108: ...A multiplex enables the diffusion of 6 programs in standard definition NIT Network Information Table Information about the network package Enables the display of a description of the measured transpon...

Страница 109: ...otation of a satellite dish Positioners are operated by DiSEqC commands QAM Quadrature Amplitude Modulation This kind of modulation is used for digital transmissions cable networks and DTT QPSK Quadra...

Страница 110: ...s Pour comparer l informatique un t l viseur cor respond une r solution SVGA 800 x 600 La proportion de l image est de 4 3 rapport largeur hauteur En t l vision HD l image est constitu e de 1080 ligne...

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