Landtag elections of Mecklenburg-Vorpommern (D)
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1 Landtag elections of Mecklenburg-Vorpommern (D) Spectrum observation in Schwerin / 15:00 21:00 Uhr Introduction In October 2008, DKE WG presented a detailed description of the use of spectrum within the scope of election campaigns for the first time. In the presentation, entitled UHF frequency usage by PMSE during the Landtag elections in Hannover, Munich, Wiesbaden and the state election in Hamburg, we created an application-related illustration of the representable use of spectrum was another election year and offered us the opportunity to observe this type of event for a second time. We were thus able to further develop the methodology of DKE. Map showing the meeting locations in the centre of the city of Schwerin (T-Theatre, S-Castle) Map: OpenStreetMaps.org The Landtag elections in Mecklenburg-Vorpommern from the perspective of DKE measurements Measurement station Location Data collection period Number of measurement cycles 1 Schloss (S) ca. 15:03 bis 20:48 Uhr Theater (T) ca. 18:00 bis 20:57 Uhr
2 Photos of locations: The Castle in Schwerin View of the castle in the direction of the election production locations ARD and ZDF election report centres 2
3 Images of the two observation stations Spectrum observation at the castle location...and at the theatre location Measurement technology at the castle location and at the theatre location Software-supported recording and assessment of the data DKE-AK developed specialised software for this work: Spectrum recording: PMSE Spectrum Occupation Recorder V1.9.88r3 Spectrum assessment: PMSE Spectrum Occupation Recorder V Measurement tools used: Observation station at castle: Rohde & Schwarz, FSP / Observation station theatre: Rohde & Schwarz, ZVL K06/ Measurement antennae UHF: Circular antenna A5000, MHz VHF: Broadband dipole, VHBA912, MHz 3
4 Graphic representation of the NDR production technology 4
5 The outdoor spectrum recorded at the castle observation station from 15:03 to 20:48 in the frequency range of 470 to 862 MHz Average value of all measurement data (the indoor UHF spectrum was plotted in 1699 measurement cycles) LTE Frequencies Percentage representation of the chronological spectrum allocation (assessment threshold = -75 dbm, 100% means continuous reception at the stations) Cumulative spectrum allocation (assessment threshold = -75 dbm, blue bar = spectrum was allocated, white = unallocated spectrum) Note : In this case an unallocated spectrum means that the observed indoor spectrum allocation was lower than the assessment threshold of -75 dbm! DKE AK : Spektrumbeobachtung zur Wahl in Schwerin / R 1.2 5
6 Depiction of signals received simultaneously at the castle location (no TV) Depiction of the maximum signals and those received simultaneously at the castle location (no TV) Prognose 15:54 16:22 18:03 18:24 19:10 19:31 19:41 Statements by the parties Reports on election participation 1. Extrapolation The election winners losers are announced 6
7 The outdoor spectrum recorded at the theatre observation station from 18:00 to 20:57 in the frequency range of 470 to 862 MHz Average value of all measurement data (the indoor UHF spectrum was plotted in 1043 measurement cycles) LTE - Frequenzbereich Percentage representation of the chronological spectrum allocation (assessment threshold = -75 dbm, 100% means continuous reception at the stations) Cumulative spectrum allocation (assessment threshold = -75 dbm, blue bar = spectrum was allocated, white = unallocated spectrum) Note : In this case an unallocated spectrum means that the observed indoor spectrum allocation was lower than the assessment threshold of -75 dbm! 7
8 Depiction of signals received simultaneously at the theatre location (no TV) Depiction of the maximum signals and those received simultaneously at the theatre location (no TV) 18:27 18:45 19:03 19:31 19:45 20:02 The election winners and losers are announced ZDF news Statements by the partiesparties ARD news 8
9 Assessment of the variable spectrum allocation The depiction at both measurement locations differs in terms of their location and different views of the election production. It is clear that the spectrum allocation follows the election events. At around 20:15, after the ARD news report, both locations have a similar slowly falling trend in spectrum allocation. According to our observations, over 100 wireless connections (without TV or LTE) were used to watch the reports and organisation of the productions, which all needed to find their place in the spectrum. Please see the following summary in table format for further details. Summary of the spectrum allocation 1) Broadband-dependent signal distribution at castle location 2) Broadband-dependent signal distribution at theatre location Note: The frequency usage was pre-coordinated by the event organiser. The parameter Carrier found in CoorTab shows the degree to which this coordinates with what was planned. 3) Summary of the broadband-dependant signal distribution of both measuring stations DKE AK : Spektrumbeobachtung zur Wahl in Schwerin / R 1.2 9
10 4) Signal table, recorded by both measurement stations , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Note: All information in KHz, the transmitting frequencies in reality may deviate slightly. Observed DVB-T- and LTE broadcast allocation (both measuring stations) K26 K39 K47 K53 LTE DVB-T frequencies: LTE frequencies : K26 = MHz - regional broadcaster K39 = MHz - only observed at the castle location K47 = MHz - only observed at the castle location K53 = MHz - regional broadcaster = MHz - only observed at the castle location Note: The upper LTE range MHz was barely used by the event technology. Observation of the disruption situation in VHF television range (Band III) The focus of this year s spectrum observation focused on the UHF-TV bands IV and V. Furthermore; we also observed the TV band III to gain an impression of the respective local disruption situation: VHF measurement antenna The measurement technology available does not, however, enable any parallel observation of VHF and UHF during the entire election event. The data is therefore only valid to a limited extent. 10
11 Summary Through its spectrum observation at the Schwerin location, DKE WG was able to provide evidence that, during this election event, there was intensive usage of the UHF frequency which followed an interdependent time, location and event process. The events of this spectrum recording should be included in a study of this event type over the course of several years. Acknowledgements Once again supported by the television production of Norddeutsche Rundfunk. Thank you for your help at the locations and also at the Landestag election press centre, Mr. Dirk Lange! Matthias Fehr, Norbert Hilbich February 2012 Additional image materials 1) A view of the outside broadcasting Radio live production 11
12 2) Some images of production in the studio Studio area a few minutes before going live Background assistance 3) Main production location at twilight (All image contributions: M. Fehr) 12
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