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 5-3
Conventional Mode Features
The Normal/Selective function disables Call Guard squelch and P25 group ID detect but
not scanning and P25 NAC detect (see Section 5.4.6, "Selective Squelch Code Select
(CTCSS / DCS / NAC)").
5.3 Busy Channel Lockout
The Busy Channel Lockout feature (also called Transmit Disable on Busy) automatically
disables the transmitter if the channel is busy when the PTT switch is pressed. When the
transmitter is disabled by this feature, “Busy” is displayed, a busy tone sounds, and the
transmitter is disabled.
The Busy Channel Lockout feature can be programmed to operate as follows. Each
conventional channel can be programmed differently.
“Off” - Busy channel lockout is disabled and the transmitter keys even if the channel is
busy.
“Noise” - If a carrier is detected on the channel, the transmitter is disabled when the
PTT switch is pressed.
“Tone (NAC)” - If an incorrect Call Guard (CTCSS/DCS) or NAC code (see Section
5.13) is detected, the transmitter is disabled when the PTT switch is pressed. An
incorrect code is any code other than the one programmed for the current channel.
“Status” - Transmission is disabled if the repeater inbound channel busy status symbol
is detected.
“Talkgroup” - Prevents transmission during calls with a different NAC or talkgroup.
Transmission is allowed during data or short terminators with the correct NAC.
Applicable to Conventional Digital channels.
If Busy Channel Override is permitted by programming, it is possible to transmit even
when the transmitter is disabled by this feature. Release the PTT switch and then quickly
press it again (within one second).
5.4 Call Guard Squelch
Tone or digital Call Guard squelch (also called CTCSS/DCS signaling) can be
programmed on each conventional analog transmit and receive channel in any order
desired. The reverse burst and turn-off code are always transmitted and also detected on
channels programmed with Call Guard squelch.
Preliminary Draft 3/9/12