2
S4.5 Diversity Receiver:
•
Setting Up
:
Connect the two antennas to the rear. An angle of around 60 degrees between each antenna is recommended for optimum coverage - the antennas should
never be exactly parallel as this reduces the effectiveness of the diversity switching system. The status of the two antennas (
Pass
or
Not Connected
) is
displayed briefly when the power is first connected.
Connect the mains power adapter to the
DC IN
rear panel connection and to the mains supply.
Always and only use the Trantec power supply provided
with your system.
Turn down gain of your mixer or PA system down and connect the audio output, either from the XLR or jack connector to the desired audio input on your
system. The output of the XLR is fixed, but the output of the jack can be varied using the adjacent
GAIN
control. For details on how to set the optimum level
for this control, see the section below on optimising the gain of your system. Note that you should always turn down the volume on your system whilst
connecting in order to prevent there being a ‘pop’ as you connect the audio lead.
The receiver will start on whatever frequency it was last set to. If you have a transmitter tuned to this frequency and switched on, then the receiver should
immediately receive, otherwise it will stay in
RF MUTE
mode. If you receive interference from other transmissions on the same channel, adjust the
MUTE
LEVEL
control on the rear panel. This can only be done when the transmitter is turned off.
•
An Explanation of the Front Panel and Options:
When the receiver is muted, it will display
RF MUTE
and the current frequency. When the receiver is receiving, it will display the frequency of the current
channel and a small bar chart indicating the received RF power, unless the
Display Name?
Option has been selected (see below), in which case a user
name will be displayed rather than the bar chart. This facility is useful in situations where you need to know who is using which channel.
To view a large RF power bar chart, press the
RF
button. Pressing either button will return you to the normal display. The large RF power bar chart will give an
indication of how good the radio signal from the transmitter is. The more segments that are lit, the better the signal, although there is little degradation until 3
segments or less are showing. This feature is most useful when first locating the receiver in order to receive the strongest possible signal. It is also useful for
finding potential trouble areas where the signal from the transmitter reduces in strength very rapidly due to natural wave phenomena.
To view a large VU meter, press the
AF
button. Pressing either button will return you to the normal display. The VU meter indicates the audio level from the
transmitter. It is most useful when optimising the system’s gain as described later.
The three LEDs indicate which antenna is being used and the presence of a high (> +3dB) audio signal. The two antenna LEDs simply indicate the operation
of the diversity system. The audio peak LED is useful when setting the system’s gain.
•
Configuring the Receiver:
All configuration is done using the two front panel push buttons. To change the configuration first enter the
SETUP MENU
by pressing both buttons together.
The following options are available from the menu, in this order:
1.
CHANNEL CHANGE
2.
BANK CHANGE
(This has no function for the S4.5)
3.
PROGRAM INFO
4.
MUTE LEVEL
5.
NAME INPUT
6.
DISPLAY NAME?
To scroll through these options, press the
∆∆
button. To select a particular option, press the
SELECT
button. The results of selecting a particular option are
outlined individually in the sections that follow. Note that any changes made to the configuration are stored in memory in the receiver, and will thus not be lost
when power is disconnected.
•
Selecting
CHANNEL CHANGE
:
Initially the current channel’s frequency is displayed. Press or hold down the
∆∆
button to scroll through the available channels. When you reach the required
new frequency, press the
SELECT
button to choose it. The receiver will immediately switch to the new frequency, and the normal display will return.
•
Selecting
PROGRAM INFO
:
This will display information on the program in the receiver. To clear this information, press the
SELECT
button to return to the normal display.
•
Selecting
MUTE LEVEL
:
This will show the setting of the rear
MUTE
control, and will change to reflect adjustments made to this control. Press the
SELECT
button to clear this
information. If the receiver is muted, this will return you to the normal display, otherwise you will see the RF bar chart. In this case, pressing either button will
then return you to the normal display. See the section below for details of how to set the mute level for optimum performance. When adjusting the mute level,
the transmitter should be switched off.
•
Selecting
NAME INPUT
:
This allows you to enter a user name which can be displayed in the normal display. The user name can be up to eight characters long. In order to change the
name from this option, the name is displayed with a cursor under the first character. Pressing or holding down the
∆∆
button will scroll through the available
