99 Washington Street Melrose, MA Phone Toll Free Visit us at

Size: px

Start display at page:

Download "99 Washington Street Melrose, MA Phone Toll Free Visit us at"

Nathaniel Armstrong
5 years ago
Views:

99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free

1 99 Washington Street Melrose, MA Phone Toll Free Visit us at TV EXPLORER II

2 F: Form Factor D: 16:9 transflective Display T: Latest Technology C: CAM interface

3 F Form factor Size does matter

4 F Form factor cm cm cm 3 Which on is TV Explorer?

5 F Form factor cm 3 This one is TV Explorer cm cm 3

6 F Form factor cm 3 This is also TV Explorer II!!! cm cm 3

7 D 16:9 transflective display Transmissive display

8 D 16:9 transflective display

9 D 16:9 transflective display Very obvious practical results

Test Equipment Depot - 800.517.8431-99 Washington Street Melrose, MA 02176 FAX 781.

10 Test Equipment Depot Washington Street Melrose, MA FAX TestEquipmentDepot.com D 16:9 transflective display More sun... More evident

11 DVB-S2 T Latest technology

12 DVB-H T Latest technology

13 MPEG-2 T Latest technology

14 T Latest technology SERVICE LIST FOR DVB-S2

15 T Latest technology USB interface

16 T Latest technology QPSK CONSTELLATION

17 T Latest technology 8PSK CONSTELLATION

18 T Latest technology DVB-T/H CONSTELLATION

19 T Latest technology ZOOM AND SCROLL FUNCTIONS

20 Test Equipment Depot Washington Street Melrose, MA FAX TestEquipmentDepot.com T Latest technology 256 QAM CONSTELLATION

21 T MER by Carrier WHERE & WHEN? Only TV Explorer II+ (firmware v1.20 or higher) Only for DVB T (COFDM) signals Signal must be LOCKED (like BER, MER, ) Key nº8 TOOLS MENU MER BY CARRIER

22 WHAT IS IT? T MER by Carrier MER measurement is an average value of the Modulation Error Rate in the Channel, which is normally good enough to quantify the quality of the signal However, it can happen: The average MER is good while the MER of some carriers is bad. amplitude 2K system : 1705 carriers 8K system : 6817 carriers f c 7or8MHz freq

23 T MER by Carrier APPLICATION : Detecting analogue interferences

the spectrum analyser and it is not strong enough to degrade the average MER,

24 T MER by Carrier MER by Carrier Analogue signal Interference (Spectrum) This interference could not be detected in any other way for it can not be seen on the spectrum analyser and it is not strong enough to degrade the average MER, CBER or VBER readings substantially. Video carrier Colour subcarrier Audio carrier

25 SPECTROGRAM & MERGRAM Two new functions exclusive to TV EXPLORER II+

26 WHERE? T Spectrogram & Mergram Only TV Explorer II+ (firmware v1.24 or higher) WHAT IS IT? The Spectrogram function is a 2D plot of Frequency vs. Time, where the signal level is represented by colours. It allows to easily monitor the spectrum and detect short perturbations, in a graphical way.

27 T Spectrogram & Mergram First, we choose the spectrum we want to monitor

28 T Spectrogram & Mergram Frequency (MHz) COLOUR = Signal Level Time (seconds)

29 T Spectrogram & Mergram Frequency (MHz) Max Freq. Min Freq. Time Span Elapsed time Time (seconds) Time Span

30 Test Equipment Depot Washington Street Melrose, MA FAX TestEquipmentDepot.com T Spectrogram & Mergram Frequency (MHz) Using the encoder, you can place the Marker in any particular point of the spectrogram and read the level measurement stored. Frequency Level Marker Relative time Time (seconds)

31 Another example : T Spectrogram & Mergram SPECTRUM (at t=0s) SPECTROGRAM There was a signal break of approx. 6seconds 16 seconds ago

Go to the Configuration Menu to setup the monitoring : SAVE AS : Name of the file where the measurements will be stored

32 T Spectrogram & Mergram HOW TO MAKE A SPECTROGRAM? 1. Setup the SPECTRUM you want to monitor (Band, Freq, Span, Ref. level) 2. Go to SPECTROGRAM screen : Key nº8 TOOLS MENU SPECTROGRAM 3. Go to the Configuration Menu to setup the monitoring : SAVE AS : Name of the file where the measurements will be stored ACQUISITION MODE : Continuous / Bounded / Circular SPECTROGRAM TIME : duration in minutes (only for Bounded and Circular) 4. Select START on the Configuration Menu to start monitoring.

33 T Spectrogram & Mergram HOW TO RECALL A STORED SPECTROGRAM? From the Tools Menu, select the menu RECALL SPECTROGRAM and choose the desired file. OR Use the PC software NetUpdate v2 (Resource Manager) and transfer it to the computer in text format (CSV)

APPLICATIONS T Spectrogram & Mergram 1. Low cost spectrum monitoring detecting short time interferences. 2. Making multiple spectrum captures in aperiod of time.

34 APPLICATIONS T Spectrogram & Mergram 1. Low cost spectrum monitoring detecting short time interferences. 2. Making multiple spectrum captures in aperiod of time. EXAMPLE : Freq : MHz (in steps of 0,20 Mhz) Time : 0 6min30s (in steps of 6 seconds) Sampling (for time and frequency) will depend on the SPAN selected in the Spectrum

35 T Spectrogram & Mergram And then... what is a MERGRAM? It is the same as a SPECTROGRAM but using the MER by Carrier plot instead of the Spectrum! COFDM Carrier COLOUR = MER value time

36 T Impulse response Detecting DTT echoes SOURCES OF ECHOES MFN : Reflections in buildings, mountains, hills, SFN : Reflections in buildings, mountains, hills, Transmitters not correctly synchronised

37 T Impulse response Detecting DTT echoes

38 C CAM interface

39 C CAM interface

40 Test Equipment Depot Washington Street Melrose, MA FAX TestEquipmentDepot.com

44 Visit us at

PROWATCHNeo. PROWATCHNeo monitoring system WEB SERVER CONTROL HEVC H K SNMP COMPATIBLE. High Effciency Video Codec

PROWATCHNeo. PROWATCHNeo monitoring system WEB SERVER CONTROL HEVC H K SNMP COMPATIBLE. High Effciency Video Codec monitoring system PROWATCHNeo SNMP COMPATIBLE Easily scalable WEB SERVER CONTROL Total flexibility HEVC H.265 High Effciency Video Codec 4 K High Definition PROWATCHNeo monitoring system Remote monitoring