User's Manual

USER
MANUAL
MPD-1611291-A
EXACT-V2 High End Rack Modulator / Exciter
3/10/2017
MPD-1611291-A
Page 26/94
Figure 10: Sharp Filter Profile menu
2.7 Output Processing
The nominal output level of the main output “RF Out” is 0 dBm for the standard exciter
and 20dBm for the exciter with optional preamp. An attenuation between 0 and 17 dB
per increment of 0.1 dB can be set. In addition, an offset gain between -1 dB and + 1
dB per increment of 0.1 dB can be set. If needed, the output spectrum can be reversed.
A copy of the main signal is available on the “RF Monitor”. This output signal is the
same as the main "RF Out" signal but with a lower level (-20dB for the 0dBm exciter,
and -43dB for exciter with optional +20dBm internal preamp).
2.7.1 RF output muting and RF maintain features
The output can be muted either by the user or automatically in some conditions. The
un-mute is pre-configured to “progressive” (2 seconds). The mute function is available
for both ATSC standards.
Mute Mode Mute cases & conditions in ATSC
Manually set
Manual Mute
Starting Delay (after a boot)
Configurable mute conditions
Warm-up Time (before 10MHz regulation starts)
Loss of Reference TimeOut (LORS) see LORS Management
Table 3: Mute cases and configurable mute conditions
RF Maintain feature: