Promax MO-180 Manual De Usuario página 75

USER'S MANUAL MO-180
1pps input
Synchronisation
Master MFN
Slave MFN
SFN
IF OUTPUT
Type
Frequency range
Spectrum polarity
Power level (average)
In-band amplitude ripple
In-band group delay ripple
Frequency stability
Out-of-band spectral
1
characteristics
@ ± 3.805 MHz
@ ± 4.25 MHz
@ ± 5.25 MHz
IQ amplitude imbalance
IQ quadrature error
Central carrier suppression
Harmonics and spurious
MER
Muting in the presence
of errors
1
Frequencies are referred to the central frequency for an 8 MHz channel. Peak levels measured using a 3 kHz
bandwidth are referred to the carriers located on either side of the spectrum. Values shown are the worst case and
correspond to guard intervals of 1/32.
04/2008
High impedance / 50 Ω female BNC.
Selectable active edge (high or low).
Minimum 2 V, max. 5 V.
Internal 10 MHz TCXO or external 10 MHz GPS
reference.
Input TS bit rate strictly below the value given in
the DVB-T/H specification.
Packet stuffing for bit rate adaptation and PCR
re-stamping are carried out automatically.
Input TS bit rate constant and equal to the value
given in the DVB-T/H
(no stuffing).
External 10 MHz reference or input TS data rate.
Automatic seamless switching between ASI
inputs in the event of a sync loss.
50 Ω BNC female connector.
Variable between 32 and 36 MHz in steps of
1 Hz; fixed at 36 MHz when RF output is off.
Selectable via front panel controls.
0 dBm (107 dBµV on 50 Ω), fixed
< 0.2 dB
< 10 ns
Better than 2 ppm
0 dBc
—46 dBc (2k), —56 dBc (4k), —56 dBc (8k)
—56 dBc
< 0.02%
< 0.02º
< —55 dBc
< —60 dBc
> 43 dB
SFN only
±0.1‰
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