APPENDIX - 5. Options List and Definitions
H251 - 60 Second TOT
This option will limit the transmitting period to 60 seconds. The radio will automatically stop
transmitting when the timer goes off and will generate an alert tone to notify you that no
transmission is taking place. Release the PTT button located on the left side panel of the radio
to disable alert tone. If you wish to have TOT value to be lesser or greater than 60 seconds,
choose option H901.
H901 - Non-standard TOT
This option will limit transmitting period to any TOT value within the valid range of 1 second to
255 seconds, incrementing by one second. If you enter a TOT value of 60 seconds, H901 will
automatically be deselected and option H251 will be selected for you by default since that option
implements the standard 60 seconds. After exceeding the preset TOT value, the radio will stop
transmitting and will generate an alert tone notifying you of its non-transmitting status.
Silent Monitor – Selecting this option will enable Silent Monitor in the radio. This option is
primarily used on PL/DPL Coded Squelch Radios. Its purpose is to remove white noise when
pressing the monitor button on the side of the radio. The audio will only unmute, if a carrier is
present on the channel you are monitoring.
H384 - Muting Via Keypad
Selecting this option will allow you to mute the alert tones generated by the keypad in the radio.
H153 - Omit All Tones
Selecting this option will cause the radio not to generate any alert tones or sidetones. Audio
feedback by the radio is muted. If you choose this option, the programmer will not allow you to
select option H619, which omits only side tones.
H365 - Transmit Inhibit on Busy Channel
Selecting this option will prevent you from transmitting on the channel if carrier is present and the
correct PL is not. This option can be enabled on all channels that have PL. If you try to transmit
while carrier is present the radio will generate an alert tone. This option also prevents use of the
monitor button.
Note: For a carrier squelch channel, this option does not inhibit transmission, even if the
channel is busy. Also the monitor function will be disabled on all channels if this option is
selected.
H359 - Channel Busy LED (Option H906 becomes disabled)
The red LED performs two mutually exclusive functions: it indicates the low battery status and
channel busy indicator. Selecting this option eliminates the low battery status indicator and the
LED functions as a channel busy LED. The LED will blink when carrier is detected on the
channel. While transmitting, the LED will either be ON if enabled or OFF if disabled.
H906 - Low Battery LED
The top mounted red LED performs two main mutually exclusive functions --it indicates the low
battery status and channel busy indicator. Selecting this option eliminates the Channel Busy
LED indication and the LED functions as a low battery indicator.
Safe Battery (H155, H200, H237, H759)
This option should ONLY be selected if you have an intrinsically safe battery. The battery options
supported include:
H155AB - CENELEC
H200AC - SAA
H237AB - CSA
H759AG - FM (Groups C, D, E, F, G)
72 Appendix - 5 Options List and Definitions