User's Manual

MaxonSM5102Radio
■ Squelch Options
The Radio supports 3 kinds of Squelch Options. Different Squelch option can be applied to each channel.
1. CTCSS
38 kinds of TIA/EIA Standard CTCSS Tones can be set up. All tones can be set up using PC Programmer.
- TX Operation: If PTT key is pressed, the Radio occurs CTCSS tone, which is programmed to each channel
and goes TX mode. Tone would occur during TX.
- TX close: When TX mode closes, the Squelch Tail Elimination of the radio would work.
- RX Operation: If the CTCSS Tone is detected, the Radio status would be changed from Busy to Correct
Call. If the CTCSS Tone is not detected, the radio would keep Busy or be changed from Correct Call to Busy.
2. DCS
The radio supports 83 kinds of TIA/EIA Normal/Inverted DCS Data.
- TX Operation: If PTT key is pressed, the Radio occurs DCS Bit pattern of each channel and goes into TX
mode. DCS Bit pattern would occur during TX.
- TX close: When TX mode closes, Squelch Tail Elimination of the radio occurs. At this time, Turn Off Code
would be transmitted.
- RX Operation: If the DCS Data Stream is detected, the radio status would be changed from Busy to Correct
Call. If the DCS Data Stream is not detected, the Radio would keep Busy or be changed from Correct Call to
Busy.
3. Squelch Defeat (Monitor) operation
If the Monitor button is assigned by PC programmer, squelch defeat function would be run by pressing
Monitor button. If Press the Monitor button, Squelch option would be closed and you can hear the audio
sound through the speaker. If Release the Monitor button, Squelch option would work again.
■ Transmit Time-Out-Timer/TX Penalty
Time-out is a dealer programmable time from 0 – 990 seconds which is the allowed time for a sustained
transmission. TX inhibit does not allow a transmission for a dealer programmed time from 0 – 75 s after the
time –out has expired to allow a cool off period for the transmitter.
■ Busy Channel Lockout/Marked Idle
The transceiver has several inhibit function which restrict transmission under the following conditions
- Busy Channel Lockout – ON: Upon PTT being pressed, if carrier is present, the radio shall not transmit and
an audible alert tone will be given.
- Busy Channel Lockout – OFF: Upon PTT being pressed, the radio shall transmit regardless of the presence
of carrier.
- Marked Idle enabled: Can only be enabled if Busy Channel Lockout is ON. If the Busy Channel Lockout is
on and carrier is detected, the radio shall be permitted to transmit if the RX squelch option is valid.
- Marked Idle disabled: Eliminates Marked Idle and defaults back to ‘Busy Channel Lockout’.
■ PTT Lockout
The radio will allow transmission according to radio busy status.
- Off : ‘Off’ allows PTT to operate regardless of whether the radio is in an open state (monitor open) or not,
and does not change the state of the radio.
- Auto Open: ‘Auto Open’ opens the monitor of the radio after pressing PTT.
- Lock PTT : ‘Lock PTT’ prevents the keying of PTT unless the radio is open
■ Scanning
This feature will support three different scanning types. Dealer programming enables each scan type.
- Normal Scan
- Priority Scan
- Priority Look-back
Once the radio has enabled scan, it will traverse through the pre-programmed scan list. The time spent on
receiving a channel in the scan list is referred to as the scan speed. When an incoming call is detected and
decoded, scanning shall stop and the radio will un-mute. After the call has ended, the radio shall enter Scan
Delay Mode for a pre-programmed period of time. If the radio receives a call from the same caller before the
Scan Delay expires, the radio will re-enter the Scan Delay Mode and that period of time will reset. If the user
is permitted to respond to the caller, the Scan Delay will be reset. When the Scan Delay expires, the radio
shall resume scanning