31
Setup (TV)
The setup menu contains the items which are infrequently used.
Lcd)
Lcd)
Lcd)
Lcd) The LCD contrast can be adjusted and the LCD backlight
enabled or disabled.
Display
Display
Display
Display)
)
)
) The scan cursor in the TV spectrum can be enabled or
disabled. The Spectrum Graticule can be turned on for dB
guidelines. The display units for signal level can be set to dBuV,
dBm, or dBmV. The TV Level can be adjusted from 55 dB to 75 dB.
This is the level that the Combolook uses for automatic attenuation
for TV presentation.
P
P
P
P----insert)
insert)
insert)
insert) The supply voltage on the antenna can be selected when
using an active antenna. Ensure you know the correct operating
voltage of the antenna amplifier because supplying too high a
voltage could burn out the active device. The voltage can be adjusted from 0V (off) to
between 12DCV and 24DCV. The positive supply is the BNC Center terminal. The
selected output voltage is
always
visible in upper left hand of the LCD display (next to
the battery-symbol). The default setting of “P – insert” is “Off” (0 volt).
Warning !
Warning !
Warning !
Warning !
M
M
M
Misuse of this function may cause irreparable damage to all connected
isuse of this function may cause irreparable damage to all connected
isuse of this function may cause irreparable damage to all connected
isuse of this function may cause irreparable damage to all connected
equipment not intended to accept or receive voltage !
equipment not intended to accept or receive voltage !
equipment not intended to accept or receive voltage !
equipment not intended to accept or receive voltage !
CH_Table)
CH_Table)
CH_Table)
CH_Table) This selects the Channel Table in use to display and select the frequency. The
available channel tables are: CCIT, France, Poland, Italy, UK1, UK2, UK3, South Africa,
and Australia. Details for these channel tables are shown in Appendix E.
Vid BW)
Vid BW)
Vid BW)
Vid BW) The
Video filter
is placed
after
after
after
after
the measuring chip-set in the instrument, and is
used in conjunction with various resolutions within a specified bandwidth. The resolution
of details on a
signal-carrier
is progressively refined in relation to the narrowing of a
filter (
sweep-time is increased
). The different Video filters are: auto-mode (
default
),
100 kHz, 10 kHz, 1 kHz or 100 Hz.
Res BW)
Res BW)
Res BW)
Res BW) The resolution bandwidth shows the incoming signal
before
before
before
before
the measuring chip-
set in the instrument. Choose between the
narrow 300 kHz
or the
wider 1 MHz
resolution. The instrument is normally working in the ”auto
auto
auto
auto” mode.
AM Marker)
AM Marker)
AM Marker)
AM Marker) Choose between FM or AM marker. FM
FM
FM
FM = Normal spectrum measuring.
AM
AM
AM
AM = Peak spectrum measuring which is preferable when measuring TV signals due to
the speed at which calculations are processed.
SAT/TV)
SAT/TV)
SAT/TV)
SAT/TV) The instrument mode when turned on can be selected to start either in TV
mode or Satellite mode. A third option is available which will ask the user on startup to
select the mode. If no selection is made within 20 seconds, the instrument will turn off.
Version
Version
Version
Version)
)
)
) The version menu displays serial number, levels of the firmware and related
information.