User's Manual
Table Of Contents
- Features
- Controls and Display
- General Operation
- Radio-wide Features
- 4.1 Viewing Radio Information
- 4.2 Option Keys / Buttons
- 4.3 Feature Enable / Disable
- 4.4 Menu Mode
- 4.5 Function Recall
- 4.6 Time-Out Timer
- 4.7 Home Channel Select
- 4.8 Power Output Select
- 4.9 Alert Tone Select
- 4.10 Surveillance Mode
- 4.11 Scanning
- 4.12 Global Positioning System (GPS)
- 4.13 Radio Service
- 4.14 Fire Ground Mode
- Conventional Mode Features
- 5.1 Monitoring Before Transmitting
- 5.2 Monitor Mode
- 5.3 Busy Channel Lockout
- 5.4 Call Guard Squelch
- 5.5 Penalty Timer
- 5.6 Conversation Timer
- 5.7 Repeater Talkaround
- 5.8 Displaying Transmit / Receive Frequency
- 5.9 Emergency Alarm and Call
- 5.10 Conventional Mode Scanning
- 5.11 Standard Conventional Calls
- 5.12 ANI Signaling Options
- 5.13 Project 25 Mode Features
- 5.13.1 Digital Unit ID
- 5.13.2 Talkgroup ID
- 5.13.3 Network Access Code
- 5.13.4 Out of Range (EFJohnson Conventional) Indication
- 5.13.5 Automatic (EFJohnson Conventional) Registration
- 5.13.6 P25 Group Calls
- 5.13.7 Talkgroup Scan
- 5.13.8 P25 Unit Calls
- 5.13.9 P25 Conventional Telephone Calls
- 5.13.10 Call Alert
- 5.13.11 Call History
- 5.13.12 Messaging
- 5.13.13 Status Messaging
- 5.13.14 P25 Packet Data
- 5.14 Keypad Programming
- 5.15 Text Messaging
- 5.16 Fire Ground Mode
- SmartNet / SmartZone / P25 Trunked Features
- 6.1 Analog and Digital Operation
- 6.2 Standard Group Calls
- 6.3 Private (Unit-To-Unit) Calls
- 6.4 Telephone Calls
- 6.5 Call Alert
- 6.6 Messaging
- 6.7 Sending Status Conditions
- 6.8 Emergency Alarm and Call
- 6.9 Failsoft Operation
- 6.10 SmartNet / SmartZone / P25 Trunked Scanning Features
- 6.11 Dynamic Regrouping
- 6.12 SmartZone and P25 Trunking Unique Features
- 6.13 Zone Password
- Messages
- Secure Communication (Encryption)
- Data Features
- Service Information
Viking Portable 600 Radio Operating Manual 3-9
General Operation
3.4.2 Low Battery Indication
Note If the radio contains encryption keys and is not programmed for infinite key retention, be
sure to reattach a battery within approximately 30 seconds to prevent the loss of these
keys (see following).
A low-battery condition is indicated by the icon in the display. The battery should
be recharged or replaced as soon after this indication appears. Once this indication
appears, it stays on until power is cycled.
Note The signal strength indicator normally occupies the location used by the Low Battery
icon. If the radio enters low batty mode, the Low Battery icon takes priority.
The following additional low battery indications and conditions may be enabled by
programming:
• A chirp sounds once a minute in the receive standby and transmit modes.
• A chirp sounds each time the PTT switch is pressed.
• The top panel LED indicator flashes red every 30 seconds in the receive mode.
• Low power is selected when transmitting.
As indicated in the preceding note, the radio may need to be connected to a constant power
source to preserve the encryption keys in memory. This is required if “infinite key
retention” is not programmed. To allow the battery to be changed without losing the keys
with this feature disabled, storage capacitors maintain the supply voltage to memory for
approximately 3.5 minutes without a battery attached. Therefore, be sure to reattach a
battery within that time. Refer to Section 8 for more information on encryption keys.
3.4.3 Battery Charging
Note When a battery is charged while attached to the radio, make sure radio power is off (see
following).
The battery can be charged separately or while attached to the radio. When it is charged
while attached to the radio, radio power should be turned off. If it is not, the battery begins
slowly discharging when the charger enters the trickle charge mode. This mode is
indicated by a green Ready indication, and it is entered automatically when the battery is
nearly fully charged. Gradual discharging occurs in the trickle mode because the charge
current is less than the radio standby current (of approximately 200 mA).
Be sure to read the instructions for operation of the battery charger, and follow all of them
carefully.
Note Be sure, especially when using nickel metal-hydride (NiMH) batteries, to put new
batteries (or batteries that have been inactive for a significant time) through at least three
Preliminary Draft 3/9/12