CT590S user’s manual | 15
Functions and operations
Squelch level (SQL) - MENU No.0
Thanks to this function you can adjust the squelch in 10 dierent levels:
• level 0: opened squelch. With this setting, CT590S will detect all signals,
also the weakest ones, but will also receive the background noise or unde-
sired signals.
• levels 1- 9: level 1 (lowest squelch level), level 9 (highest squelch level).
If the squelch is set to the highest level, the radio will receive the strongest
signals only.
Step frequency (STEP) - MENU No.1
This function lets you select the desired frequency step.
The selectable steps are the following:
2.5/5/6.25/10.0/12.5/25 KHz
Note: in channel mode, this function cannot be modified.
Output power (TXP) - MENU No.2
In this MENU you can select the high/low output power.
Low power = 1W; High power = VHF 5W / UHF 5W
Note: select the output power can improve the quality of the call, while the low
output power can reduce the radiation and the battery capacity loss. Press the
fast key “#” to switch between the high or low output power.
Battery save (SAVE) - MENU No.3
The power save feature enables a reduction in the consumption of the battery
when the radio is in standby.
You have 5 selections available: OFF / 1:1 / 1:2 / 1:3 / 1:4.
For example: 1:1 = 1s’ working and 1s’ battery saving. 1:2 = 1s’ working and 2s’
battery saving.
VOX Function (VOX) - MENU No.4
This function allows hands-free conversations: just speak in the direction of the
microphone and the communication will be automatically activated.
You can choose amongst 11 levels: OFF-10. 1 is the highest level, 10 is the
lowest one.
