Rohde & Schwarz 6144.7800.02, Operating Manual

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R&S EU4200C Configuring with the R&S ZS 4200
6174.8456.02-01 3.16
Main/Standby Type
The main/standby type declares if a radio should start up as an active main
radio or as an inactive standby radio. If the common AC- or
DC-supply of a main/standby installation is powered up, then the radio will
boot accordingly.
Note:
The parameter Main/Standby Type is also used for the Best Signal
Selection if this functionality is enabled.
Line Interface in
Local Mode
In local mode, the rear and front panel audio interfaces as well as the VoIP
and E1 data streams operate in parallel (default). The rear panel audio line
interface (including SQ contact and audio output) as well as the VoIP and
E1 data streams can be disabled for the local mode. This allows
independent use of the radio for a service technician where unwanted SQ
indication or line output must be prevented.
Local Mode
You can disable the LOC button on the radio to prevent the radio from
being switched from remote mode to local mode.
Local Mode Timeout
Local mode will be quit automatically if there is no further
activity on the front-panel radio keys. Timeout can be set between
60 s and
900 s, or disabled.
Single Channel
Fixed frequency cannot be changed. Frequency must be configured before
activating this function.
Motor Tuned Filter
It is possible to connect an external automatic filter to the radio. Either a
Telsa, an R&S or a third-party filter can be used. In order to activate the
RS-422 interface, the configuration parameter has to be enabled by
selecting the proper protocol type. The filter has to be connected to X11.
Note:
The X-cross adapter KG42-Z75 is required for operation with the
R&S filter Fx22x.
Note:
Enabling the external automatic filter will limit the frequency range of
the radio to 118 MHz … 155.9916 MHz.
Frequency Blocking
Ranges
Up to eight frequency blocking ranges can be defined. The device will
refuse any set frequency command done by the MMI local operation or via
remote control which is within these frequency blocking ranges.
The configured frequency blocking ranges have to fit the radio's frequency
range from 112 MHz to 155.991666 MHz.
SQ/RSSI Signaling
The radio allows to signal the SQ status, RSSI (see chapter 3.8 InBand
Signaling), and occurrence of STD events (see chapter 3.15 Simultaneous
Transmission Detection (STD)) via in-band tones on demodulated audio
irrespective of the used voice mode (Analog, E1, VoIP). A small range
around the configured in-band tone frequency is suppressed by a notch
filter.
SQ Signaling
Frequency
The frequency of the in-band tone for SQ, RSSI, and INVSQ signaling is
variable within a specified range.
Note:
We recommend using a different in-band tone for SQ and STD. Only
in this case the VCS can separate the 2 events.
STD Inband Signaling
Frequency
The frequency of the in-band tone for STD signaling is variable within a
specified range.
Note:
We recommend using a different in-band tone for SQ and STD. Only
in this case the VCS can separate the 2 events.