Multi-Standard Analogue TV Demodulator
Showman 1000
Operation
2008 dB Broadcast Ltd
37
Provisional Version 0.3
AFC Control
Showman 1000 frequency tuning is in accurate 0.25MHz increments. This is normally
sufficient for tuning into terrestrial or cable broadcast TV transmissions. Automatic Frequency
Control (AFC) is a means for automatically tuning into “off standard” frequencies to within a
resolution of ±50kHz. AFC should normally be set to the factory default of Off.
From Config. Options – AFC Control:
Press <ENTER>
Press
▲ or ▼ to select AFC On or Off as required.
Press <ENTER> to accept or <ESCAPE> to reject the selection.
Press <ESCAPE> <ESCAPE> to return to DEFAULT.
Tuner Gain
This function may be set to Normal or Boost. In Boost mode, the tuner, at the expense of
some IF filtering, provides extra IF gain. This mode is intended only for use in situations
where the signal is very weak and no strong adjacent signals are present. It should not be
used in “normal” signal strength areas.
From Config. Options – Tuner Gain:
Press <ENTER>
Press
▲ or ▼ to select Normal or Boost as required.
Press <ENTER> to accept or <ESCAPE> to reject the selection.
Press <ESCAPE> <ESCAPE> to return to DEFAULT.
