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Profesionálny merací prístroj Rover Scout ST2+
Kód tovaru: R10830
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Terrestrial TV Signal Indicator TZU-22 DVB-T Finder
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Terrestrial TV Signal Indicator TZU-22 DVB-T Finder
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Terrestrial TV Signal Indicator TZU-22 DVB-T Finder
Merací prístroj a dodávané príslušenstvo
Kombinovaný profesionálny merací prístroj Rover Scout ST2+ je určený skúseným inštalatérom na analýzu a meranie digitálnych signálov (DVB-S, DVB-S2, DVB-T, DVB-H, DVB-C) a analógových signálov (pozemná, káblová a satelitná TV) - v rámci frekvenčného rozsahu 47-2150 MHz.
  • DVB-S,
  • DVB-S2,
  • DVB-T,
  • DVB-H,
  • DVB-C,
  • analóg (satelitný a pozemný signál).
The frequency range for terrestrial signals (DVB-T, DVB-H, DVB-C, analog) is 47-870 MHz, for satellite signals (DVB-S, DVB-S2) - 930-2150 MHz. In the case of terrestrial signals the measured level can range from 5 dBuV to 123 dBuV (measurement accuracy: 1 dBuV), for SAT IF: 30-123 dBuV (measurement accuracy: 1.5 dBuV).
The meter supports the following digital modulations:
  • QPSK - Quadrature Phase-Shift Keying,
  • 8PSK - 8 Phase-Shift Keying,
  • COFDM - Coded Orthogonal Frequency-Division Multiplexing,
  • QAM (emulated) - Quadrature Amplitude Modulation.
For each of the transmission standards the meter allows for:
  • automatic test of signal quality,
  • analysis of the signal spectrum,
  • measurement of noise margin (in the case of digital signals).
Noise margin (measured in dB) is the amount by which the signal exceeds the minimum amount indispensable for proper reception. It shows by how many decibels one can degrade MER to obtain aBER equal to QEF (2E-4). aBER is after Viterbi Bit-Error-Rate, also known as VBER, Post-Viterbi BER or BER before Reed-Salomon correction - determines the number of erroneous bits to the total number of received bits, sent during a given time interval, after Viterbi correction, but before Reed-Solomon correction.
MER (Modulation Error Rate) is equal to the ratio of the effective power of the constellation vector error to the reference effective power which is equal to the effective power of the signal transmitted in a lossless channel.
QEF (Quasi Error Free) defines the threshold for correct signal reception.
bBER - Bit-Error-Rate before Viterbi correction, also known as CBER (Channel Bit-Error-Rate) or Pre-Viterbi BER.
It is important to realize which BER value is measured - aBER is usually about a million times smaller than bBER.
The relationship between C/N and aBER/bBER for different code rates (DVB-S)
The relationship between C/N and bBER for different QAM modulations (DVB-C)
The meter allows to measure:
Analog terr. TVsignal level
video subcarrier level
audio subcarrier level
rate of video subcarrier level to audio subcarrier level
Digital terr. TV
channel power
aBER and bBER
MER
constellation diagram
noise margin
Analog SAT TV
signal level
Digital SAT TV
channel power
aBER (QPSK) and bBER
PER (8PSK)
MER
EVM
constellation diagram
PER - (Packet Error Rate) - determines the ratio of incorrectly transmitted packets to all received. The packet is invalid even if only one bit is erroneous. The expected value of PER is the probability of the presence of an erroneous bit.
EVM - (Error Vector Magnitude), also known as RCE (Receive Constellation Error), is a common parameter for assessing the quality of digitally modulated telecommunication signals. It expresses the difference between the expected complex voltage value of a demodulated symbol and the value of the actual received symbol. Informally, EVM shows how far the measured constellation points deviate from theoretical values. The pairs of the points determine the vectors (between the actual points of the constellation of the received signal and the theoretical points). In other words, EVM allows to asses the difference between theoretical and received symbols. EVM is the average power of the error vector, normalized to the signal power.
The device allows for bouquet id identification) and provides information on modulation parameters. It also displays information about encryption. The user can preview the service list of the bouquet (with video and audio), as well as the PID table.
The meter also enables the user to listen to the audio of analog TV programs and FM channels. There is automatic channel scan and memory function. The built-in buzzer helps the installer to align antennas without a need to watch the readings of the meter. It is possible to compare signal levels of two channels (tilt function).
The meter has the ability to identify the satellites and to search transponders. It supports both the Unicable technology (SCR - Satellite Channel Router) and DiSEqC, as well as allows to align Dual LNB dishes. "SAT Finder" function allows search of satellites. The meter can power various equipment (preamplifiers, LNBs, multiswitches) with 5, 12, 18, or 24 V.
Both during the measurements of signal parameters and during the spectrum analysis, the meter allows to "jump" from transponder to transponder, channel to channel, frequency to frequency. The user can create up to 99 lists of transponders, each with up to 199 channels. Automatic login function ensures automatic recording of measurements within the lists. The meter has the ability to automatically measure selected parameters of signals and save them as files (memory capacity: 99 files assigned to lists), as well as it also can scan the entire bandwidth of one or even several satellites.
The display of the meter has a resolution of 64x128 pixels, which is sufficient for clear presentation of the results. The manufacturer informs that a fully charged battery can last for 2.5 hours (at maximum load). The firmware can be updated via USB 2.0 interface. The housing of the meter is made of impact-resistant plastic. The device weights only 1.2 kg and has dimensions of 22.5 x21.5x8 cm. The set includes a carrying case for the meter and accessories, charger, car charger and USB cable.
Technické údaje
NázovRover Scout ST2+
KódR10830
Supported standardsDVB-S, DVB-S2, DVB-T, DVB-H, DVB-C, analog terr. and SAT TV
Frequency range [MHz]47-862 (DVB-T, DVB-H, DVB-C, analog terr. TV)
930 - 2150 (DVB-S, DVB-S2, analog SAT TV)
Signal level range [dBuV]30-123 (DVB-T, DVB-H, DVB-C, analog terr. TV)
5-123 dBuV (DVB-S, DVB-S2, analog SAT TV)
Accuracy [dB]1.0 (DVB-T, DVB-H, DVB-C, analog terr. TV)
1,5 (DVB-S, DVB-S2, analog SAT TV)
Supported digital modulationsQPSK, 8PSK, COFDM, QAM (emulated)
Measurement capabilities regardless of the signal typeautomatic test of signal quality, spectrum analysis
Measurement capabilities of digital signals
noise margin
Measurement capabilities of analog terrestrial signalssignal level, video subcarrier level, audio subcarrier level, rate of video subcarrier level to audio subcarrier level
Measurement capabilities of digital terrestrial TV channel power, aBER, bBER, MER, noise margin, constellation diagram
Measurement capabilities of analog SAT TV
signal level
Measurement capabilities of DVB-S/S2
channel power, aBER (QPSK), bBER, PER (8PSK), MER, EVM, constellation diagram
Other capabilities for DVB-S/S2
bouquet id identification, modulation details, encryption detection, bouquet service list with audio and video, PID table
Audio monitoring
 analog TV channels, FM radio
Other capabilities for terrestrial signals
automatic scanning with data collection, channel hoping, sound support for dish alignment (buzzer), the whole band on the LCD, comparing the level of the signal between the two selected signals
Other capabilities for satellite signals
search for satellites and transponders; support for DiSEqC standard and positioner, S.C.R. protocol, dual LNB
Power options for external equipment (LNB, preamp etc.) [V]5, 12, 18, 24
Navigation
transponders, frequencies, channels
Memory99 program lists (each up to 199 transponders/channels)
99 logger files
Display resolution
64 x 128
Firmware update
via USB 2.0 port
Battery operation time [h]2.5
Weight [kg]1.2
Dimensions [cm]22.5x21.5x8
Accessoriescarrying case for meter and accessories, AC charger, car charger, USB cable

 

Tovar bol stiahnutý z ponuky
 
Profesionálny merací prístroj Rover Scout ST2+
Kód tovaru: R10830