Squelch Level (Squelch-Level) - Menu Utilities 1; High/Low Power Selection (Tx Power) - Menu Utilities 2; Step Di Frequenza (Step) - Menu Utilities 3 - Midland CT990 Manuel D'utilisation

Squelch level (Squelch-Level) - Menu Utilities 1

This function turns on the Squelch when the signal is strong; the Squelch will
stay off when the signal is weak.
By setting the level too high, you may not receive the weak signals; while by
setting it too low you may receive noises or undesired signals.
NOTE: This transceiver has 10 (0-9) available levels: 0 means that the Squelch is
turned on. From level 1 to level 9 you will have different levels of noises reduction.
The higher is the level, the louder will be the Squelch.
In standby mode, press Menu Utilities + 1; the screen displays "Squelch level".
Press Menu to enter the function. Press the ▲/▼ buttons or rotate the en-
coder knob to select the desired Squelch level, then press Menu to confirm. To
return to the standby mode press Back.

High/low power selection (TX Power) - Menu Utilities 2

You can choose between 10W (High) or 5W (Low) output power.
In frequency mode, press Menu Utilities + 2; the display will show "TX Power".
Press Menu to enter the function. Press the ▲/▼ keys or rotate the encoder
to select High or Low power, then press Menu to confirm your selection.
To return to the standby mode press Back.

Step di Frequenza (Step) - Menu Utilities 3

In Standby mode, press Menu Utilities + 3; the display will show "STEP".
Press Menu to enter the function and then the ▼/▲ keys to select the desired
frequency step.
Confirm your selection by pushing Menu.
To return to standby mode press Back.
CT990 has 10 frequency steps available: 0.5KHz, 2.5KHz, 5.00KHz,
6.25KHz, 10.00KHz, 12.50KHz, 25.00KHz, 37.5KHz, 50.00KHz and
100KHz.
Midland CT990 instruction guide | 9