Switching On / Off; Automatic Lock Function - IMG STAGELINE TXS-1800 Manual De Instrucciones

1) Insert the BNC adapter into the hole provided
on the bracket and fasten it .
2) Connect the antenna to the front jack of the
adapter .
3) Use a 50 Ω BNC cable to connect the rear jack
of the adapter to one of the antenna jacks (9)
on the rear of the unit .
Two plastic caps are supplied to cover the holes if
the antennas are not attached to the rack brackets .

5 Switching on / off

To switch the receiver on / off, keep the button
POWER (6) pressed for approx . 1 second .
If the receiver is not in use for a longer period
of time, disconnect the power supply unit from the
mains socket . Even when the receiver is switched
off, the power supply unit has a low power con-
sumption .
6 Settings
Use the buttons SET, AUTO,
settings on the receiver .

6.1 Automatic lock function

When no button is pressed, the buttons SET, AUTO,
and will be locked automatically approx .
 
15 seconds after switching on ( on the display) .
To unlock the buttons, keep the button SET
pressed for approx . 1 second .
settings can be made via the buttons SET, AUTO,
and . To lock the buttons after the settings have

been made, keep the button SET pressed again .
The buttons will also be locked automatically a
short while after the last operation .
6.2 Setting of radio frequency, squelch,
transmission power and gain
When the buttons are unlocked (
use the button SET to select the functions one after
another . When the last function has been reached
and the button SET is pressed again, the setting
mode will be exited:
Group setting  channel setting  squelch setting  set-
ting of transmission power for the transmitter  gain setting
for the transmitter  exit of setting mode
The indication of the function selected starts flash-
ing . As long as it keeps flashing, settings can be
made with the buttons
If no button has been pressed for a few sec-
onds, the setting mode will be exited automatically .
However, any setting made will also be saved in
this case .
and (5) to make
 
will disappear and
☞
chapter 6 .1),
and .
 
6.2.1 Radio frequency
GR CH
The radio frequency is defined by the channel
group and the channel (
1) Use the button SET to select the function "group
setting" (group indication starts flashing) and
the button

2) Then use the button SET to select the function
"channel setting" (channel indication starts
flashing) and the button
nel . The corresponding radio frequency will be
indicated on the display .
When multiple wireless systems TXS-1800 are oper-
ated in parallel, it is recommended to use channels
from the same group . Under optimum operating
conditions, up to 8 channels of a group may be
operated at the same time without mutual inter-
ference . To quickly find free channels in a group
see chapter 6 .3 .
6.2.2 Squelch
indication "squelch"
The squelch threshold is adjustable in three levels .
The squelch function will mute the receiver when
the level of the radio signal received falls below
the threshold value adjusted . Thus, high-frequency
interference signals will not cause noise at the re-

ceiver when the transmitter is switched off or when
the transmission power is insufficient: If the levels
of the interference signals are below the threshold
value, the receiver will be muted .
A high threshold value offers high interference
resistance, but it will also reduce the transmission
range of the wireless system since, during opera-
tion, the strength of the transmitter signal must
be high enough to prevent muting of the receiver .
Thus, when the reception is good, a high threshold
value can be used; however, when the transmitter
and the receiver are far apart, a low threshold value
is recommended .
Use the button SET to select the function
"squelch setting" (indication
and the button
displayed = highest threshold value) .
6.2.3 Settings for the transmitter
indications "transmission power" and "gain"
These settings apply to the transmitter of the
wireless system . During frequency synchronization
indications "group" and "channel"
☞
table on page 13) .
or to set the group .

or to set the chan-
 
starts flashing)
or to set the level (3 levels
 
11