E F Johnson Company 2425720 Benutzerhandbuch
2-10
Viking™ VP600 Portable Radio Operating Manual
Controls and Display
2.4.1.1
RSSI Threshold Indications
In conventional mode only if programmed, the user can see the signal strength of the last
call displayed as a signal strength indicator icon. At the start of every call, the radio will
take an RSSI measurement and set a corresponding signal strength indicator icon. The call
must be long enough for a full measurement (40 ms) or the measurement will be ignored.
The signal strength indicator icon from the last call will stay displayed until a new call is
received. The icon signifies the strength of the last received call not the current signal
strength. If the radio goes out of range because it did not receive a beacon within the
Inactivity Duration, it will automatically set the signal strength indicator to Out Of Range.
call displayed as a signal strength indicator icon. At the start of every call, the radio will
take an RSSI measurement and set a corresponding signal strength indicator icon. The call
must be long enough for a full measurement (40 ms) or the measurement will be ignored.
The signal strength indicator icon from the last call will stay displayed until a new call is
received. The icon signifies the strength of the last received call not the current signal
strength. If the radio goes out of range because it did not receive a beacon within the
Inactivity Duration, it will automatically set the signal strength indicator to Out Of Range.
2.5
Signaling Tones
Information is communicated to users of the Viking Portable radio using signal tones and
alerts and by LED signaling. Table 2.5 shows the information and signaling tones
supported by the Viking Portable radio. If you are viewing a PDF of this manual on a
computer equipped with a sound card, click on the Message Name to hear the tone.
alerts and by LED signaling. Table 2.5 shows the information and signaling tones
supported by the Viking Portable radio. If you are viewing a PDF of this manual on a
computer equipped with a sound card, click on the Message Name to hear the tone.
Table 2.4 RSSI Threshold Indicators
RSSI Range
Portable Icon
No Measurement Taken
< Out of Range
Out of Range > Fair
Fair > Good
Good > Excellent
> Excellent
Table 2.5 Tones for the Viking Portable Radios
Message Name
Usage Description
Audible Description
Action Performed
Indicates that an action has been
performed.
1500Hz for 50ms, 0Hz for 50ms,
1000Hz for 50ms, 0Hz for 50ms,
1500Hz for 50ms
Alert
Used for transmit time-out warnings
and for failsoft alert.
1500Hz for 50ms
Alert Site Trunking
Used to notify the user that they have
entered site trunking.
1500Hz for 50ms
Alert Tone Keypress
Used to indicate the tone volume
during tone volume adjustment.
1000Hz for 100ms
Bad
Used to indicate a problem with the
user’s input.
300Hz for 100ms
Bad Condition
Indicates loss of sync in roaming
diagnostic mode.
300Hz for 150ms, 0Hz for 50ms
(played 3 times)