Promax TVHUNTER, Руководство пользователя

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USER’S MANUAL. TVHUNTER .
Page 2 10/2010
1.2 Specifications
TUNING
Frequency range
474 MHz to 858 MHz (UHF).
Measurement points 50 maximum.
RF INPUT
Impedance
75
Ω.
Connector Universal, including BNC, DIN and F
interchangeable adapter.
Level range 40 dB
µ
V to 100 dB
µ
V.
Maximum signal level DC to 100 Hz 30 Vrms.
474 MHz to 858 MHz 120 dB
µ
V.
DVB-T SIGNAL PARAMETERS
Carriers 2k / 8k (selectable by the user).
Guard Interval 1/4, 1/8, 1/16, 1/32 (selectable by the user).
Code Rate 1/2, 2/3, 3/4, 5/6, 7/8, AUTO.
Modulation QPSK, 16-QAM, 64-QAM, AUTO.
Spectral inversion Selectable: ON, OFF.
Bandwidth 7MHz, 8MHz.
DVB-T MEASURES
POWER 40 to 100 dBµV.
MER 0 to 33 dB.
CBER 1E-5 to 1E-1.
VBER 1E-7 to 1E-3.
Noise Margin 0 to 30 dB.
Spectral inversion Set by user.
Quality level for acceptance Set by user.
Initial values MER = 21 dB.
Displayed information Multiplex name and its first 48 services, if it is
detected. Visual indication of DVB-T locked
signal.
Configuration
of test points
By means of USB 2.0 connection to PC. (Cable
and software included).
EXTERNAL UNITS POWER
SUPPLY
Through the RF input connector.
Output voltage +5V, +12V, +15V, +24V
±
1 V.
Maximum external output power 5 W (2.5 W for +5 V).
BACK-LIGHT DISPLAY Automatic.