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– 788x –
7880-7881-7882-7885
EXPERT TV METERS
USER MANUAL
This product contains one or more programs protected under international and US copyright laws as un-
published works. They are confidential and proprietary to Dolby laboratories. Their reproduction or disclo-
sure, in whole or in part, or the production of derivative works there from without the express permission of
Dolby Laboratories is prohibited. Copyright 2003-2005 by Dolby Laboratories. All rights reserved.
November 2017
M7885001A/01
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Summary of Contents for SEFRAM 7880
- Page 1 – 788x – 7880-7881-7882-7885 EXPERT TV METERS USER MANUAL This product contains one or more programs protected under international and US copyright laws as un- published works. They are confidential and proprietary to Dolby laboratories. Their reproduction or disclo- sure, in whole or in part, or the production of derivative works there from without the express permission of Dolby Laboratories is prohibited.
- Page 2 – 788x – Revision follow-up Version / Date Page or § Changes 1.0 / november 2017 First edition...
- Page 3 – 788x – Thank you for purchasing this SEFRAM product and therefore trusting our company. Our different teams (research department, production, sales department, after-sales service…) are aiming at satisfying your wishes by designing and updating very advanced appliances. To obtain the best performance from this product please read this manual carefully.
- Page 4 It shall subscribe, at its own expenses, any insurance required for the transport. The SEFRAM company reserves the right to refuse any product wrongly conditioned and not to take in charge any break consecutive to the transport.
- Page 5 In case of failure of your appliance, please contact the after-sales support. Some advice! Some technical help! SEFRAM Instruments & Systèmes commits itself to help you on the phone about the use of your appliance. Please call or Technical Support: Or e-mail: support@sefram.fr...
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Page 6: Table Of Contents
– 788x – TABLE OF CONTENTS Important information ......................10 Particular precautions ........................... 10 Security instructions ............................. 10 Conformity and restrictions of the appliance ....................10 Quick start-up ........................11 Presentation of the appliance ........................11 Signal spotting .............................. 13 2.2.1 Checking a terrestrial antenna ...................... - Page 7 – 788x – Pointing antennas ......................44 Terrestrial antenna pointing ......................... 45 9.1.1 Updating channels ..........................46 Satellite dish pointing ........................... 48 9.2.1 Updating satellites ..........................50 9.2.2 Double Check Sat ..........................51 9.2.3 Alignment of the satellite dish ....................... 51 9.2.4 Azimut-Elevation-Polarization .......................
- Page 8 – 788x – 14.2.1 Launching .............................. 83 14.2.2 Switches ..............................84 14.2.3 Positioner .............................. 85 14.2.4 DCSS ..............................86 14.2.4.1 Influence of the DCSS on the spectrum analyzer................88 15 Measurement map......................89 15.1 Measurements filtering ..........................89 15.2 Periodic scan ............................89 15.3 USB recording ............................
- Page 9 – 788x – 28.4.1 Measurement unit ..........................120 28.4.2 Impedance ............................120 28.4.3 Bip ............................... 120 28.4.4 LCD ..............................120 28.4.5 IP address ............................120 28.4.6 Password ............................121 28.4.7 Background ............................121 28.5 Configuration ............................122 28.6 Update ..............................123 28.7 Factory recovery .............................
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Page 10: Important Information
In case of failure or for the maintenance of the appliance, only a qualified personal shall be entitled to work on it. In such a case, it is required to use SEFRAM spare parts. Do not open the appliance: risk of electric shock. -
Page 11: Quick Start-Up
– 788x – 2 Quick start-up Presentation of the appliance RF connector for use with an F/F adaptor provided with the appliance. Pour brancher le signal à analyser Press button ON/OFF Important keys: 788X is an appliance with a capacitive touchscreen. This requires a soft handling. No glove and no stylus should be used, so that the triggering should be taken into account. - Page 12 – 788x – Welcoming page: HOME Access to the main menu Home SAVE current page Save Measures-TV-Spectrum Access measurements Home page : The functions of the device are grouped by type: choose the category in this page by selecting a tab; the possible functions will then be accessible.
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Page 13: Signal Spotting
– 788x – Signal spotting The 788X allows spotting signals in terrestrial or satellite very quickly. In the following chapter, we will see how to spot a signal on three types of installation: checking of a terrestrial antenna (the installation has already been made) ... -
Page 14: Installation Of A Terrestrial Antenna
– 788x – Eventually, press the “Measures/TV/Spectrum” key; on this new page, select the channel that you want to display. The instrument display on a single page of parameters of the signal, TV picture and Spectrum scan : a great time gain for your installs. - Page 15 – 788x – Adjust the antenna to get the most powerful signal possible Press directly the signal you want in the spectrum (the cursor moves to where you press) Press the NIT/TV key , the device find automatically all the parameters of the signal. Once the search ended, the device display TV picture, TV name, “Network Name”...
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Page 16: Using Pointing Function
– 788x – 2.2.2.1 Using Pointing function The device has a terrestrial pointing function to quickly and easily adjust your terrestrial antenna. Access the terrestrial pointing menu from the "HOME" page by pressing the key« Pointing » , puis « Terrestrial » The following page appears : Choose the transmitter to point in the list If your transmitter is not in the list, if you want to enter a new transmitter, please refer to chapter 9.1... -
Page 17: Installation Of A Satellite Dish
– 788x – 2.2.3 Installation of a satellite dish To install a satellite antenna, two ways are possible : Spectrum function use Pointing function use 2.2.3.1 Using Spectrum function Connect the satellite dish to the appliance. Activate the remote power supply To access to the Remote power supply page, press “Home”... - Page 18 – 788x – Adjust the antenna to get the most powerful signal possible Press directly the signal you want in the spectrum (the cursor moves to where you press) Press the NIT/TV key , the device find automatically all the parameters of the signal. Once the search ended, the device display TV picture, Satellite name, and “Network ID”.
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Page 19: Using Pointing Function
– 788x – 2.2.3.2 Using Pointing function The device has a satellite pointing function to quickly and easily adjust your dish. Access the satellite pointing menu from the "HOME" page by pressing the key« Pointing » , then “Satellite”. The device proposes to activate the remote power supply : The following page appears: Check the indication of consumption on the remote power supply;... - Page 20 – 788x – Select a satellite like in the example below (here Astra1): If your satellite is not in the list, if you want to enter a new satellite, refer to chapter 9.2. Slowly orientate the satellite dish until hearing the locking melody and getting the best quality No found transponder →...
- Page 21 – 788x – To check if the aimed satellite is the right one: press the “NIT key” The appliance searches the MPEG NIT table on one of the 4 transponders and displays the name of the satellite: Attention: The displayed name depends on the content of the MPEG NIT table. Some distributors provide no (or poor) such table.
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Page 22: Presentation
– 788x – 3 Presentation General The field strength measurers 788X are handy appliances designed for the installation and maintenance of any broadcasting and reception installations of analogical and digital terrestrial television channels, satellites or cable networks. The band ranges between 5 MHz to 2200 MHz; this allows accurate measurements on all analogical television standards, FM carrier waves and the various digital standards DVB-C/C2, DVB-T/T2/T2Lite, DAB/DAB+, DVB-S/S2, DSS. -
Page 23: Description Of The Appliance
– 788x – Attention : 7880 - 7881 - 7882 - 7885 Consult the Selection Guide to know the possibilities of your device. Description of the appliance FRONT VIEW 10’’ capacitive Fastening touchscreen for straps high resolution RF input Optical Fiber input... - Page 24 – 788x – How to use the belts Use of the sun visor...
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Page 25: Power-Up
Battery Attention: Any intervention on the battery requires the disassembly of the appliance and should be made by a SEFRAM technician. Use only batteries provided by SEFRAM. Security advice: Do not throw into the fire or heat up the battery pack ... -
Page 26: External Power Supply
– 788x – Loading will be faster if the appliance is off but will work if the appliance is on. Once the battery loaded, the lamp will shut off automatically. Discharge the appliance only with the provided power supply block. The battery is 80%-loaded after 1 hour 50 minutes. -
Page 27: Man-Machine Interface
– 788x – 5 Man-machine interface Content of the screen 788X is an appliance with a capacitive touchscreen. 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 «... - Page 28 – 788x – Home page : The functions of the device are grouped by type: choose the category in this page by selecting a tab; the possible functions will then be accessible. “Home” page allows the navigation through all functions of the appliance. We find the categories related to the measurement input used: access to measurements on the RF input socket (levels, BER / MER, spectrum, TV, ...) access to measurements on the Fiber Optic input (power, demodulation, ...)
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Page 29: Changing A Name Or A Value
– 788x – Informations : On all pages is displayed the following informations : SATCR mode Current Slot Title of the page DISEQC switches Indication of the state of Icon to recall Voltage and Current of the battery measurement the remote power External input choice ASI input... -
Page 30: Change With Selection
– 788x – 5.2.2 Change with selection When pressing a key, you may have a window with multiple choice. You only have to press the value you want to validate it. The key allows you to cancel and exit this window, like in the example below. In this example, the bandwidth changes from 6 to 8 MHz: 5.2.3 Change with virtual keyboard If you want to enter a name of a number,... -
Page 31: Lists Of Measurements And Setup Library
– 788x – Lists of measurements and setup library In order to make easier the recall of data on field, the appliance uses 20 Measurement Lists of each 50 lines and a Library of 1000 setups. A setup corresponds to a terrestrial, cable or satellite emission. A list of measurements corresponds to a particular installation: presence of several satellite dishes, of various switches…... - Page 32 – 788x – A list of measurements is made of: a list name in 10 characters the lowest frequency of the LNB (OL1) the highest frequency of the LNB (OL2) the selection mode low band / high band of the LNB ...
- Page 33 – 788x – an analogical mono stereo or NICAM mode in terrestrial or cable mode a constellation type 64QAM 256QAM under DVB-C and J83B a bandwidth 5, 6, 7 or 8 MHz under DVB-T and DVB-T2 a symbol rate under DVB-C, J83B, DVB-S, DVB-S2 or DSS ...
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Page 34: Measurement Lists
– 788x – 6 Measurement lists The List page In this page, you can select the list where you will work on measurements. Pressing Home then Lists-Library gives you access to the Lists function: Lists are ranked from 0 to 19. To select the list you want, press the following the name of the list. Available Lists are displayed. -
Page 35: Modification Of A List
– 788x – Attention: A list may contain booth Satellite and Terrestrial setups. Modification of a list To change the name of a list, you must trigger its name. A virtual keypad shows up, type the new name. To add a setup to the list, select the line. A window shows up: Attention: If the line contains a setup, it shall be erased. - Page 36 – 788x – Scroll the list up or down to find the setup you want to add to your list. Press the line you want: The setup is now in the list: You may erase one or all setup(s) from the list : mark on the left all lines to be deleted: Then simply press the trash and validate your choice:...
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Page 37: Setup Library
– 788x – 7 Setup library The Library page By pressing Home then Lists-Library , you can access the Lists function. From there, you can access the Library by pressing the key: Creation or modification of setups in the library To create or change a setup in the library, you have to select a line in the table. - Page 38 – 788x – Terrestrial setup: Under standard DVB-T/H (DVB-T2 identical, except modulation) To enter the place To enter the name you name you want for want for the setup the setup To enter the frequency To enter the you want for the setup channel you want for the setup...
- Page 39 – 788x – Setup Satellite KU, L or C: Ku, L, or C corresponds to the satellite band of the setup 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 the setup...
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Page 40: Autoset Mode
– 788x – 8 AUTOSET mode Attention: The Autoset channel research is only possible when at least one list is empty with enough place in the library This mode allows an automatic research of setups and to provide information about the current place. on page “Home”. -
Page 41: Terrestrial Mode
– 788x – Once the mode selected, the keys of the various parameters activate or deactivate each option. A green check shows that the parameter is included in the research. If there is no green check, the parameter will not be taken into account for the research. Active research parameter Inactive research parameter Attention: The more you select options, the longer the research. -
Page 42: Cable Mode
– 788x – Cable mode This mode allows automatic research on the cable frequency band. The table allows the selection of: Standards Channel widths The channel range of the research (i.e. 21 to 58). «START » No matter which mode is selected, press the “START” key when the table is filled to launch the research. Pressing “Stop”... - Page 43 – 788x – Any detected channel will be registered into the first empty list (automatically renamed AUTOSET) and into the fist available 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...
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Page 44: Pointing Antennas
– 788x – 9 Pointing antennas Press to access the Pointing Antennas mode. Then choose the antenna to point: terrestrial or satellite dish In the case of the satellite dish, the device offers you to supply now your dish:... -
Page 45: Terrestrial Antenna Pointing
– 788x – Terrestrial antenna pointing The following page appears: Set your pointer: - Name of the issuer - 4 channel settings You can choose an existing issuer from the available list or create a new one. This new transmitter will be registered in the list of transmitters for future re-use. Name of the transmitter : Enter 4 frequencies or channels of the transmitter that you want to point to. -
Page 46: Updating Channels
If a channel does not give an indication of Quality, its parameters may have changed. You can update the parameters by consulting the PDF file posted on the SEFRAM website. It is then enough to modify the frequencies by following the preceding paragraph. - Page 47 – 788x – You can find the channel numbers of the various French transmitters on the SEFRAM website (download section) or by clicking on the link below : http://www.sefram.com/downloads/maj_soft/fr/CANAUX_TNT_FRANCE_2015_2016.xls You may add new transmitters and update or suppress old ones thanks to a computer and an USB memory stick.
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Page 48: Satellite Dish Pointing
– 788x – Satellite dish pointing The following page appears: Set your pointer: - Satellite to point - 4 transponders settings The appliance has 30 possible orbital positions for satellites. It is provided with 10 satellites registered. 4 transponders are appended to each satellite. To modify a transponder, you must press the corresponding key. - Page 49 – 788x – not synchronized on all four transponders → RED Smiley all tranponders loked, but average reception quality → ORANGE smiley Good reception quality → GREEN Smiley Attention: 4 transponders To identify a satellite, it must be synchronized on all However, some transponders are regularly modified.
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Page 50: Updating Satellites
9.2.1 Updating satellites If a transponder does not give an indication of Quality, its parameters may have changed. You can update the frequencies of the satellite pointers by consulting the PDF file posted on the SEFRAM website. It is then enough to modify the frequencies by following the preceding paragraph. -
Page 51: Double Check Sat
– 788x – The setting time depends on the rate of the transponder. The lower the rate, the longer the setting time. Hence you’d better select high rate transponders to align a satellite dish. 9.2.2 Double Check 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 have to trigger the Double key To return to the... -
Page 52: Azimut-Elevation-Polarization
– 788x – Calculations : Satellite: satellite to aim, the closest to the median position between Satellite1 and Satellite2 Elevation: tilting angle of the satellite dish Azimuth: horizontal angle of the satellite dish with reference to the north ... -
Page 53: The Measures-Tv-Spectrum Page
– 788x – 10 The Measures-TV-Spectrum page The "TV-Spectrum Measurement" page contains Level / BER / MER measurements, access to Spectrum Analyzer, access to the full screen TV image and all signal parameters. So, pressing the red-circled zones will result in: SPECTRUM analyser Parameters... -
Page 54: Modification Of Parameters
– 788x – 10.1 Modification of parameters The various parameters are: The active List The name of the setup The frequency of the emitter or transponder The standard and bandwidth for DVB-T/H and DVB-T2 The corresponding channel number for terrestrial and cable mode ... -
Page 55: Level Measurements
– 788x – The "INFO" key gives you access to additional indications depending on the standard 10.3 Level measurements You can measure levels at a specific frequency with a detection matching the standard. In terrestrial band, for an user socket, the level should be: between 50 and 66 dBµV under FM between 35 and 70 dBµV under DVB-T/H, DVB-T2 and DAB/DAB+ between 57 and 74 dBµV in any other case. -
Page 56: Terrestrial Band
– 788x – 10.3.2 Terrestrial band The appliance automatically makes level measurements on the Video carrier wave. The following table sums up the measurement types, filters and the frequencies of the audio carrier for each standard: Standard Video carrier Measure filter Sound carrier Mono... - Page 57 – 788x – 10.4 The device automatically measures C / N (carrier to noise ratio). Measurement cursor « carrier » Measurement cursor « noise » The calculation of C / N depends on the chosen standard: analog standard: C / N (dB) = carrier - noise - 10 x log (bandwidth / filter) digital standard: C / N (dB) = carrier - noise ‘carrier’...
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Page 58: Thresholds
– 788x – 10.5 Thresholds Predefined thresholds are used to assess if the measurement is pertinent. Standard Analogical terrestrial TV DVB-C/C2, J83B DVB-T/T2 DAB-DAB+ FM, carrier Analogical satellite TV DVB-S, DSS DVB-S2 min threshold max threshold Decision thresholds are used to display the measures « Power Level » and « Measurement Map »: 10.6 Digital measurements In digital standards, in addition to the RF level and to the C/N hereabove, the appliance also displays :... - Page 59 – 788x – “Sync ?” displayed on screen means that the signal is absent or unlocked; check its presence, the modulation parameters, the presence of remote power supply and the LNB and DiSEqC parameters under satellite band. The sign < before a value or error rate shows that there is no error but that 10 bits have been tested (i.e.
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Page 60: Dvb-T/H
– 788x – 10.7 DVB-T/H REED DECODAGE VITERBI DEMODULATOR TUNER SOLOMON MPEG BERi BERo Constellation Echos MER/carrier Display of the measures of: BERi: error rate before Viterbi BERo: error rate after Viterbi PER: error rate after Reed Solomon (error rate packet) ... -
Page 61: Dvb-T2 / T2 Lite
– 788x – 10.8 DVB-T2 / T2 Lite DECODING DEMODULATOR LDPC TUNER MPEG BERo BERi Constellation Echos MER/carrier Display of the measures of: BERi: error rate before LDPC BERo: error rate after LDPC PER: error rate after BCH (lost packets) ... -
Page 62: Dvb-C
– 788x – 10.9 DVB-C REED DECODING DEMODULATOR TUNER SOLOMON MPEG BERo Constellation Display of the measures of: BERo: error rate before Reed Solomon PER: error rate after Reed Solomon (error rate packet) MER: modulation error rate ... -
Page 63: J83B (Mcns)
– 788x – 10.10 J83B (MCNS) REED DECODING TUNER DEMODULATOR SOLOMON MPEG BERo Constellation Display of the measures of: BERo: error rate before Reed Solomon PER: error rate after Reed Solomon (error rate packet) MER: modulation error rate ... -
Page 64: Dvb-C2
– 788x – 10.11 DVB-C2 DECODING DEMODULATOR LDPC TUNER MPEG BERo BERi Display of the measures of: BERi: error rate before LDPC BERo: error rate after LDPC PER: error rate after BCH (lost packets) MER: modulation error rate ... -
Page 65: Dvb-S And Dss
– 788x – 10.12 DVB-S and DSS REED DECODING VITERBI DEMODULATOR TUNER SOLOMON MPEG BERi BERo Constellation Display of the measures of: BERi : error rate before Viterbi BERo : error rate after Viterbi PER : error rate after Reed Solomon (error rate paquet) ... -
Page 66: Dvb-S2
– 788x – 10.13 DVB-S2 DECODING DEMODULATOR LDPC TUNER MPEG BERo BERi Constellation Display of the measures of: BERi : error rate before LDPC BERo : error rate after LDPC PER : error rate after BCH (lost packets) ... - Page 67 – 788x – To turn ON the Multistream, press "MIS": Activate Stream number Multistream (ISI) Proprietary stream coding: PL Scrambling - NO: no coding - MANUAL: a code to enter - AUTO: the 3 codes to enter are tried successively by the device...
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Page 68: Fm-Rds
– 788x – 10.14 FM-RDS FM radio demodulation and RDS services display. RT (Radio Text) Texts diffusion; few nets use it to send referencies of musics currently playing. PS (Program Service) Station name, 8 letters long. The RDS standard explain that these 8 letters must be fixed, and are the name of the station. -
Page 69: Dab/Dab
– 788x – 10.15 DAB/DAB+ DAB/DAB+ digital radio demodulation and services display. DAB is a Digital audio radio diffusion using COFDM modulation caarying audio using system MPEG Layer 2. DAB : sound MPEG Audio Layer II DAB+ : sound HE-AAC V2. Display of : ... -
Page 70: Spectrum Analyser
– 788x – 11 Spectrum analyser Pressing SPECTRUM gives access to the SPECTRUM ANALYSER function. (frequency / amplitude graphical representation of the signals present at the input of the device) Cursor : Setup : Channel: Cursor frequency Measurement cursor Manual Setup from active Terrestrial entering the cursor... -
Page 71: Display Modes
– 788x – 11.1 Display modes The spectrum display modes are: Normal Normal sweep MaxHold Keeps crests on every sweep Average Averaging at each sweep... - Page 72 – 788x – Single Hold back the last sweep Buzzer auditory indication of the total power seen Zoom double display, zoom of the spectrum under the cursor (10MHz in terrestrial, 50MHz in satellite) Simulation of an LTE filter (4G); influence on high frequencies (4G present on channel 61 to 69).
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Page 73: Nit/Tv
– 788x – Full or wired plot Measurement with 2 cursors: display of level / frequency differences 11.2 NIT/TV This mode is used to display the TV channel pointed by the cursor in the spectrum page, this mode works in terrestrial, cable and satellite. - Page 74 – 788x – The display of a TV program is possible only for non-encrypted channels. For encrypted channels, the instrument will display « conditional access ». Displaying TV program can take several seconds because the instrument is looking for standard and modulation of the channel before being able to decode and display the program.
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Page 75: Image And Sound
– 788x – 12 Image and Sound Pressing the TV zone gives access to the TV function. Pressing the key switches to full screen mode, the image uses the entire screen, the only remaining indication battery and current-voltage remote power supply: To exit this mode, simply press anywhere on the screen. -
Page 76: Audio
– 788x – 12.2 Audio To set the volume, press an adjustment bar shows up: The instrument can decode the following digital sound formats: MPEG-1 L1/L2 Advanced Audio Coding License Via Licensing HE-AAC High Efficiency AAC License Via Licensing ® Dolby Digital License Dolby ®... -
Page 77: Nit Function
– 788x – The various PID are described under this function. In the case of a multilingual emission, you can change the language by pressing the line you want. Example: PID 732/Audio MPEG1 for an emission in German (code deu). 12.5 NIT function Pressing... -
Page 78: Etr290 Alarms Function
– 788x – 12.7 ETR290 Alarms function Pressing gives you access to the ETR290 Alarms function. The instrument analyze in real time, the Transport Stream (TS) according the DVB recommendation TR101290 defining an Alarms list. Each error detected is displayed with a red cross beside its meaning These alarms are recorded (latched) on the display to help you to detect a short error along a long time analyzing. -
Page 79: Etr290 Bitrates Function
– 788x – 12.8 ETR290 Bitrates function Pressing the key accesses the ETR290 BITRATES function. The device analyzes the Transport Stream (TS), and measures for each Service its bit rate and occupation in the Multiplex. In the list of Services are displayed, for each Service: ... -
Page 80: Cam Installation / Access Card
– 788x – 12.9 CAM installation / Access card To display encrypted services, it is necessary to install a CAM (Conditionnal Access Module) and a valid Access card inside the instrument. The slot of the CAM is placed on left side of the instrument. If the displayed TV channel is encrypted, the appliance automatically checks on the CAM interface whether a subscription card is present and whether the encryption key is compatible (access rights). -
Page 81: Monitoring
– 788x – 13 Monitoring The "Monitoring" function can be accessed from the HOME page by pressing It allows to record on a defined time, all the measurements made on the current signal: Current signal ourant Recorded measures Recording time Start/Stop monitoring... -
Page 82: Remote Power Supply / Lnb - Diseqc
– 788x – 14 Remote power supply / LNB – DiSEqC key gives you access to the remote power supply / LNB-DiSEqC. To start the remote power supply, press the key : The window allows you to select the remote power supply on terrestrial and/or satellite mode. 14.1 Terrestrial band In terrestrial mode, you can select:... -
Page 83: Satellite Band
– 788x – 14.2 Satellite band 14.2.1 Launching Setting the remote power supply to satellite: OFF to turn off the remote power supply under satellite measure ON to turn on the remote power supply under satellite measure AUTO to launch automatically the remote power supply in satellite measure... -
Page 84: Switches
– 788x – 14.2.2 Switches 2-satellite switch 4-satellite switch * 22 kHz * DiSEqC Committed or Uncommitted * ToneBurst (MiniDiSEqC) *DiSEqC Committed or Uncommitted Uncommitted 16-satellite switch * DiSEqC Committed + Uncommitted... -
Page 85: Positioner
– 788x – Switch line Uncommitted line Satellite Position Commande DiSEqC Position Commande DiSEqC Pos A Option A + Position A Pos 1 Input 1 Pos B Option A + Position B Pos 1 Input 1 Pos C Option B + Position A Pos 1 Input 1 Pos D... -
Page 86: Dcss
– 788x – 14.2.4 DCSS 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 give several receptors access to the whole spectrum and all polarizations, you need one coaxial cable per receptor and a suitable installation (multiple LNB, Quattro and multi-switches). - Page 87 – 788x – The DCSS mode has priority on all other modes DISEQC: selection polarization, selection OL, switches committed and uncommitted and positioner. 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 Distribution v2, standards EN50607 and EN50494 (or SCD2, Unicable II, JESS) Distribution of the satellite signal with only one coaxial cable to a maximum of 32 different receptors.
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Page 88: Influence Of The Dcss On The Spectrum Analyzer
– 788x – SCD2 (EN50607) : SLOT x : active slot choice CONFIG : access to each slot configuration Slots list, frequencies, standard, PIN codes, bandwidth INITIALISATIONS : 32 predefined slots ALLOCATION : states of the 32 possible slots ... -
Page 89: Measurement Map
– 788x – 15 Measurement map To access the MEASUREMENT MAP function, press Home then Measurement map: It is an automatic level and error rate measurement of the setups in the measurement list with labeling of the levels beyond tolerance. Measurement result for channel 38... -
Page 90: Usb Recording
– 788x – You can choose: mono : only one scan is made 0mn : the total scan starts again as soon as it is finished 1mn : the scan starts every minute 10mn : the measurement scan starts every 10 minutes ... -
Page 91: Values Beyond Tolerance
– 788x – 15.4 Values beyond tolerance The digital values are colored according to the Thresholds before decision for values less than Threshold min orange for values more than Threshold max 15.5 Graphics To switch to graphic mode, press In graphic mode, you can see levels. - Page 92 – 788x – You can measurement the difference “Tilt” between the levels of two setups thanks to the Ref and Curs cursors : You may graphically select a setup to know its name, its level measurement : press directly on the graphic bar you want:...
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Page 93: Constellation
– 788x – 16 Constellation The graphic display of the Constellation is possible on the standards: DVB-T/T2 DVB-C/C2 DVB-S/S2, DSS In the "Measures-TV-Spectrum" page, press the key The appliance displays the Constellation of the current signal. On this page, you can ‘’zoom’’ on one of these quadrants by pressing You can change the display of the quadrant by pressing On this page, there is a template (with ideal constellation spots). -
Page 94: Echo / Guard Interval
– 788x – 17 Echo / Guard interval These measures are available with one of these standards : DVB-T/T2 DVB-C2 In the "Measures-TV-Spectrum" page, press the key Signal with echoes and pre-echoes Signal without echo 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... - Page 95 – 788x – 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 delay between the various signals that reach the antenna.
- Page 96 – 788x – Relative amplitude in dB and delay in µs (distance in km) from the main signal (pulse #0) can be measured. The yellow line represents the end of the guard interval. Echoes and pre-echoes (pulses) above the yellow line disturb the signal and must be reduced as much as possible.
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Page 97: Mer/Carrier
– 788x – 18 MER/Carrier These measures are available with one of these standards : DVB-T/T2 DVB-C2 In the "Measures-TV-Spectrum" page, press the key The instrument will display MER per carrier and the MER of the whole signal. Perfect signal Highly disturbed signal The MER of each carrier is displayed, and each «... -
Page 98: Shoulder Attenuation
– 788x – 19 Shoulder Attenuation These measures are available with one of these standards : DVB-T/T2 In the "Measures-TV-Spectrum" page, press the key The device displays on this page the measurement of the 'Shoulder Attenuation' of the current signal. Value of the 'Shoulders' measured: ... -
Page 99: Asi Function
– 788x – 20 ASI function The input or the output of the MPEG digital video signal is made according to the ASI standard ("asynchronous serial interface"). This is a serial transmission, asynchronous (without clock) 270MHz on coaxial cable to input or output a digital modulator or an MPEG frame analyzer for example. -
Page 100: V Function (External Video)
The state of the interface is displayed on the TV image: Indications: AV IN: TV picture from external A / V input (jack) Connection cable: accessory available from SEFRAM RCA yellow : video RCA white : left audio RCA red : right audio... -
Page 101: Gps
– 788x – 22 GPS To access the GPS functions, press the "HOME" key and then the "GPS" tab 3 functions are available : MAPPING function to create a map with positions and RF measurements VIEW function to graphically display all GPS satellites in view ... -
Page 102: Log Function
– 788x – 22.2 LOG function This function allows you to register the number of locked satellites as a function of time. The key below selects the acquisition time (10 mn, 60mn, 8 h, 24 h or 7 days) The « Init » key initializes the record and the «... - Page 103 – 788x – GPS status : UTC time coordinates (latitude, longitude) altitude satellites used by the GPS module Measurements : 1 setup or setups 1 to11st from Measurement Map (measurement setup by setup) RF – C/N – BERi – BERo – PER – MER – LKM All the configuration is available from key ...
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Page 104: Recording A File
– 788x – 22.3.1 Recording a file At the beginning, the appliance is looking of satellites to make good positioning. The “Status GPS” display the GPS coordinates sended by GPS hardware. The RF measurements “Level/BER/MER” or “Measurement Map’ display the associated measurement. GPS file name GPS file state open/close GPS file one point record... -
Page 105: Export And Cartography
– 788x – The graphical zone represents the display of the current coordinates from the original position. Press this ‘target’ zone to change scale and reset the display. 22.3.2 Export and cartography After creating the * .GPS file on your device, you can export it to a USB stick: in CSV format for display in a spreadsheet in KML format compatible with most mapping software (“Google Earth”... - Page 106 – 788x – Example : using “Google Earth” After installing “Google Earth” on your computer, clic 2 times on the file *.KML you have created; the software show you your records (moves and measurements) : Example : using “Google Maps” After creating a account “Google Maps”...
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Page 107: Optical Fiber Function
– 788x – 23 Optical Fiber function To access the "Fiber Optic" function, press the "HOME" key and then the tab "Optical" The optical option allows measurements to be made in different installation configurations: in fiber satellite reception (optical fiber LNB output) reception on a dish with an RF output up to 5.450 GHz behind a satellite / terrestrial fiber coupler The option allows you to:... -
Page 108: Connectors
– 788x – 23.1.2 Connectors Like for RF, connectors are very important and their selection has consequences on the quality of the received signal. With optical fibers, there are several kinds of connectors according to the type of fiber (single-mode or multimode) and to the selected connection. -
Page 109: Satellite Reception
– 788x – 23.2 Satellite reception In standard satellite reception (KU), the LNB transforms the Ku frequency of the satellite into a BIS frequency into 4 frequency bands: Vertical Low (VL) - Vertical High (VH) - Horizontal Low (HL) - Horizontal High (HH) These bands are automatically selected by the satellite receiver with 0 / 22kHz, 13 / 18V or Diseqc controls. -
Page 110: Wavelengths
– 788x – On the device, the HOME page provides access to all measurements: identical to the RF input (Pointing, Spectrum, Measurements / TV, Monitoring, Measurement Plan ...) choice of working wavelength Wavelength measurement of optical power seen on the fiber used for the FO->... -
Page 111: Optical Power Measurement
– 788x – 23.4 Optical Power measurement You can choose to measure a single wavelength, or 2, or all 3 simultaneously: Choice of measured wavelengths Display unit: dB, mW or dBm Reference points for each wavelength Optical power for each wavelength Optical Power Meters: Violet: 1310nm... -
Page 112: 5Ghz Input
– 788x – 24 5GHz input There are also LNB satellites with an output frequency of up to 5.450GHz. This type of LNB converts the Ku frequency of the satellite into a single frequency band from 950MHz to 5450MHz. The field meter has an input dedicated to this type of LNB: "5GHz". Press the "HOME"... - Page 113 – 788x – Caution: working at 5,450GHz in RF requires precautions (quality of the connectors and weak cable length) to not have a too deteriorated signal. To use the 5GHz measurement input, it is necessary to configure it; Press on From this menu you can activate the 6.2V remote power supply of your 5.45GHz LNB, and choose the band you want to work on: - Auto which is the complete Terrestrial band (50 to 900MHz) and Sat (900 to 5450MHz)
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Page 114: Wifi
– 788x – 25 WIFI Press the "HOME" key and then the tab Connect the Wi-Fi antenna supplied on the SMA connector. You can measure the RF level received of your Wi-Fi network, or display the list of Wi-Fi networks received by your appliance,with text display (by SSID) and graphical display (Histogram). -
Page 115: Iptv Function
– 788x – 26 IPTV function Press the "HOME" key and then the tab in developpement…... -
Page 116: Save
– 788x – 27 Save Pressing opens a window (here, on the Measurement Map page): In this window, you can : save the current measurement parameters to the active list (frequency, standard, …) make a screen shot to a USB stick under BMP format make a save into internal memory. -
Page 117: Configuration
– 788x – 28 Configuration Press the "HOME" key and then « Configuration » 28.1 Language You can select your language by pressing the « flag » (below). Press the flag corresponding to your language: 28.2 Frequency map This key allows you to select the terrestrial frequency map of the appliance: 28.3 Memories The number of saved files and their memory size are displayed. -
Page 118: View
– 788x – By pressing a line of the table, you open a window: You can then view the contents of this memory, or export it to an USB memory stick. From this menu you can also export to a USB key all the contents of the memory. 28.3.1 View This key allows the display of the content of the file: 28.3.2 Save... -
Page 119: Save All
– 788x – CSV : allows you to export the file to the USB stick under CSV format (text file by columns separated with semicolons); it is useful to analyze values in a spreadsheet. Here is the spectrum hereabove with a curve under EXCEL™. 28.3.3 Save all Records all files from the appliance under BMP format or CSV format, saved into separated directories : ... -
Page 120: Adjustment
– 788x – 28.4 Adjustment 28.4.1 Measurement unit This key allows you to select the measurement unit of the appliance: dBµV: 0 dBµV corresponds to 1 µV dBmV: 0 dBmV corresponds to 1 mV 0 dBm corresponds to 274 mV: 1 mW with a 75 Ω impedance. dBm: 28.4.2 Impedance Input impedance of the device:... -
Page 121: Password
If the code is right, the appliance will start (there is no limit to the number of trials). It is mandatory to register your instrument and the password to recover a lost password from SEFRAM (please use the template supplied on the CD-ROM) Attention : if you have lost your password please contact the technical support support@sefram.fr... -
Page 122: Configuration
– 788x – 28.5 Configuration You can EXPORT the configuration of the appliance to an USB stick, or you can IMPORT a new configuration from an USB stick. The configuration of the appliance results from 3 files : “Pointing One file SAT.CSV for Satellite Dish Pointing (see antennas”) ... -
Page 123: Update
– 788x – If no CSV file is present on the USB memory stick, only the older configuration of the appliance will be saved. You don’t have to copy all files to the USB memory stick; i.e. if only the Check Sat must be changed, you only have to copy SAT.CSV on your stick. You can move the older CSV files from the CONF directory to the root of the USB stick to transfer the configuration of an appliance to another. -
Page 124: Software Update
The update requires an USB stick. To achieve the update: - Download the update file 788X_VX.X zip file on our website (www.sefram.fr) - Insert a USB stick on your PC - Unzip the file onto the root of the memory stick... -
Page 125: Connection Of The Appliance To A Pc
Required configuration These drivers are compatible with the following operating systems: Windows Vista ™, Windows XP ™, Windows Seven ™. For any other operating system, please contact the technical support SEFRAM. Your PC should also have a free Ethernet port. 30.2 ETHERNET interface For this kind of connection, no driver installation is required. -
Page 126: Network Connexion
– 788x – 30.3 Network connexion For the Ethernet connection of your appliance to a computer network, see the following scheme: 1) Contact your network administrator to get a free IP address and the subnet mask 2) Type the IP address and the subnet mask in the appliance 3) Type the same IP address and... -
Page 127: Hdmi Connection
– 788x – 31 HDMI Connection The appliance includes a HDMI "output" connector; Attention: When a HDMI cable is linked to the appliance, the touchscreen is inactive and the screen shuts off. Plug a mouse to the USB port of the appliance to keep on working on the appliance. This function allows you to visualize the screen of the appliance on a television (or any screen with a HDMI input);... -
Page 128: Displayed Messages
– 788x – 32 Displayed messages The appliance may display messages while working. 32.1 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: cable under tension or excess intensity above maximum. Messages of the same king may show up;... -
Page 129: 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. Else, or for any other problem, contact the SEFRAM technical support: e-mail : support@sefram.fr... -
Page 130: Maintenance
CONNECTIONS Erroneous measures At any measurement This "advice" does not engage the responsibility of SEFRAM I.S. It guarantees the best possible use of the 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. - Page 131 100% good functioning pixels in the display zone. They specify a number of possible defective pixels at the surface of the screen. The SEFRAM quality service has preconditioned the mounting of the screen on your instrument to the respect of the acceptance conditions of the manufacturers.
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Page 132: Technical Specifications
– 788x – 34 Technical specifications 34.1 Selection Guide 7880 7881 7882 7885 Frequencies 5-2200MHz 5-2200MHz 5-2200MHz 5-2200MHz DVB-T/T2/T2 Lite DVB-C/C2 DVB-S/S2, DSS, Multistream ... -
Page 133: Common Technical Specifications
– 788x – 34.2 Common technical specifications Technical specifications Terrestrial band Satellite band Frequencies Range 5-1005 MHz 900-2200 MHz Resolution measure 50 kHz, display 1 kHz measure 1MHz, display 1MHz Level measurements Dynamic range 20-120 dBµV 20-120 dBµV Units dBµV, dBmV, dBm Accuracy ±2dB +/- 0.05dB/°C Resolution... -
Page 134: Digital Measurements
– 788x – 34.3 Digital measurements DVB-T/H CBER (before Viterbi BERi) VBER (after Viterbi BERo) Bit Error Rate (BER) UNC (lost packets PER) Noise margin Modulation Error Rate(MER) 15 - 35dB Sensitivity < 35dBµV Bandwidth 6MHz, 7 MHz, 8 MHz FFT type 2k, 8k, auto Constellation... - Page 135 – 788x – DVB-C2 LDPC (BERi) BCH (BERo) Bit Error Rate (BER) FER (frame error PER) Noise margin Modulation Error Rate(MER) 25 - 35dB Sensitivity < 55dBµV Symbol rate Bandwidth 6MHz, 8 MHz Mode PLP and data slice, single or multiple FFT type Constellation 16QAM, 64QAM, 256QAM, 1024QAM, 4096QAM, auto...
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Page 136: Divers
– 788x – 34.4 Divers Remote supply Terrestrial Satellite 5V/13V/18 V/24V 13/18 V Voltage 500 mA max (300mA for 24V) 500 mA max DiSEqC 1.2 DiSEqC control of dish motor switches committed & uncommitted Mini DiSEqC (22kHz) 22 kHz, ToneBurst SCD /SATCR EN 50494 8 slots max... -
Page 137: General Specifications
– 788x – 34.5 General specifications LCD TFT 10 inch color, 16/9, backlight 500 cd/m², 1280x800 dots Display touch screen, capacitive technology, External supply Main adaptor 110/230 VAC, with 5,5mm jack, 15 V 4.6 A Battery Li-ion 100W Autonomy 4 hours typical, depending of use Charging time 1,5 hour for 80% of capacity Operating temperature... -
Page 138: V, Dbµv, Dbmv Et Dbm Conversion
– 788x – 34.7 V, dBµV, dBmV et dBm conversion dBμV (dBmV) is a logarithmic ratio between a measured voltage Ud and a reference voltage Ur. The reference voltage is Ur = 1 μV (1 mV) N = 20 log (Ud/Ur) dBm is a logarithmic ratio between a measured power Pd and a reference power Pr. -
Page 139: Ce Declaration
Degré de pollution Product name Désignation : Field Strengh Meter Mesureur de champ Model Type: 7880 – 7881 – 7882 - 7885 Compliance was demonstrated in listed laboratory and record in test report number RC 7880 La conformité à été démontrée dans un laboratoire reconnu et enregistrée dans le rapport numéro... - Page 140 – 788x – SEFRAM 32, rue Edouard MARTEL BP 55 F42009 SAINT-ETIENNE Cedex France Phone : +33 (0)4 77 59 01 01 Fax : +33 (0)4 77 57 23 23 Sales department e-mail : sales@sefram.fr Technical support e-mail : support@sefram.fr Website : www.sefram.fr...
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