TEST REPORT Multi Norm Digital TV Signal Analyzer Deviser TV Analyser S7000 Part 1: Analyzer Functions • Very large, high resolution display • Suitable for MPEG2 and MPEG4 • Real-time spectrum for quickly identifying active transponders • Can be remotely controlled via PC or mobile phone • Very ergonomical and practical operation 18 TELE-audiovision International — The World‘s Largest Digital TV Trade Magazine — 09-10/2013 — www.TELE-audiovision.com www.TELE-audiovision.
TEST REPORT Multi Norm Digital TV Signal Analyzer Professional Combination Analyzer for all Digital TV Standards 09-10/2013 Deviser S7000 Best professional instrument for measurement and analysis of all globally used TV systems www.TELE-audiovision.com/13/09/deviser My expectations were big when Deviser sent their new flagship S7000 to us here at TELE-audiovision to be tested.
ously only available on a PC with specialized software. But that‘s not all. Do you remember the TELE-audiovision issues from 12-01/2012 and 02-03/2012? In those issues I described my idea of implementing a waterfall diagram to continuously display the spectrum for satellite signal analyzers. This makes it possible to display the spectrum over a specified time period so that, for example, intermittent errors could be identified. It also makes it much easier to align antennas, especially motorized dishes.
tons and lastly the right-side group of buttons includes arrow buttons plus an OK button for confirmation and ESC and TAB buttons. The relatively large number of buttons actually simplifies operation in that most of the buttons only have a single function. There’s no unnecessary switching to go through like there would be with multi-function buttons. Aside from that, we definitely approve the ability to enter frequencies directly.
the display can also be routed to an external monitor; this could be useful, for example, in a training environment. The carrying case has the necessary Velcro flaps to cover the inputs. The rechargeable battery can be swapped out by the user and can be accessed from the rear panel. There’s also another highlight of this professional analyzer: an ASI input and output. It’s very unusual yet excellent for measuring real professional systems.
expert TECHNICAL DATA OPINION without having to constantly keep an eye on the analyzer. After turning the S7000 on, it needs only 18 seconds before it’s ready to be used. The Main menu appears from which you can switch between SAT and CATV/terrestrial mode with the help of the menu buttons on the side. The IPTV option can be added for an additional charge whereby even IPTV in a network could then also be measured and analyzed. This option was not available in our test analyzer.
1 2 3 6 Satellite Modes 1. The S7000’s Main menu is nicely organized. The function buttons to the right select the desired mode: cable, terrestrial or SAT (IPTV optional). The File Manager can also be accessed here. The arrow buttons are used to switch between measurement, constellation diagram, spectrum analyzer, Sat Finder and DiSEqC. 2. A push of the SETUP button brings up the correct LNB configuration page. 3, 4, 5, 6.
7 12 8 13 9 10 7. Without any detours you end up in the constellation diagram. Here Deviser utilizes the highresolution display and provides an excellent method to diagnose problems caused by faulty components. 8. Next is the Spectrum Analyzer mode. First of all we liked that the spectrum can be displayed with a 1200 MHz span in real time. Real time simply means that the spectrum display is renewed multiple times per second.
14 14. Switching from SaTCR (SCR - Single Cable Routing) and DiSEqC. In SCR mode the individual frequency windows of the antenna jacks can flexibly be edited so that the S7000 can be harmonized with practically every SCR switch. 15. In DiSEqC mode DiSEqC 1.0 and 1.1 multiswitches can be controlled (for up to 4 or 16 LNB inputs) as well as a DiSEqC 1.2 positioner. Simple tone-burst switches can also be controlled. 15 16 17 18 16.
29 30 34 35 31 36 32 37 33 38 29. The fifth screen contains a PCR measurement. PCR stands for Program Clock Reference and serves to determine the transit time delay between the received signal and the receiver clock (27 MHz). A PCR is periodically added to the transport stream. The Deviser S7000 reads this PCR and shows how precisely synchronized the internal 27 MHz clock is with the PCR signal. The difference should normally be no more than +/500ns.
44 49 45 50 46 51 47 52 48 44. In the second GENERAL section the network interface can be configured. 45, 46. Outstanding: the Ping command can be used to test the network connection. This alone is very useful when, for example, a socalled Triple Play CATV connection is being installed and, in addition to telephone and digital cable TV, the Internet connection needs to be tested. 47.
53 58 61 64 54 59 62 65 55 60 63 66 56 53. In the submenu HUM the user can select whether the line voltage uses 50 or 60 Hz. The corresponding measurement can therefore properly recognize and display any hum. 54. Under LEVEL UNIT the desired units can be selected for signal level and power measurements. The standard is dBµV although measurements can also be displayed in dBmV or dBm. The S7000 can also offset the measurements from -3.0 dB to +3.
68 69 70 71 72 69, 70, 71. In DVB-T/H mode, the constellation diagram is enormously useful in identifying errors. The Deviser S7000 comes with all the expected functions like Zoom, to magnify quadrants. Also interesting is the ability to focus the constellation diagram onto single carriers in the transponder. This lets you analyze, for example, the influence of a narrow bandwidth interference signal on a single carrier. Fantastic! 72, 73.
82 87 83 88 84 89 85 86 82. With analog signals there are of course additional measurements possible, for example, the signal-to-ratio. What’s unusual is all of the information that can be displayed at the same time thanks to the high-resolution screen. Even from a distance you’d be able to read on a bar graph the numerical values, for example, for the signal level and the signal-to-noise ratio while at the same time, for example, the channel number and frequency are displayed. 83.
90 95 98 100 91 96 99 101 92 97 93 94 90. Just like with the handheld signal analyzer DS2400T introduced in the 1209 issue of TELEaudiovision, a long duration bit error rate (BER) measurement is also available. The time interval can be selected and from that point on a graphic shows the progression of BER and MER. This helps to identify intermittent problems. 91. An additional measurement for DVB-C signals is available, namely the EVM or Error Vector Magnitude.
