Midland CT890 instruction guide | 9
Functions
CT890 displays at the same time 2 frequency bands: the master frequency
(for transmission) that is indicated on the display with ‘MAIN’ and the other
one is the secondary frequency and only can be used to receive.
• To choose the desired frequency (master or secondary), press the A/B
key.
• Under Frequency mode: the following 9 functions can be set on both
Bands: frequency step, output power, squelch level, channel ban-
dwidth, CTCSS, DCS, Frequency shift direction, frequency offset, and
Channel displaying mode.
• Under Channel mode: the following 7 functions can be set on both
Bands: Busy channel lockout, CTCSS, DCS, channel bandwidth, fre-
quency step, frequency shift direction and frequency offset.
Frequency step (STEP) - MENU 1
In stand-by mode press MENU + 1; the display will show “STEP”
Press MENU to enter the function and then the ▼/▲ keys to select the
desired frequency step. Push MENU again to confirm you selection.
To return to standby mode press EXIT.
CT890 has 7 frequency steps available: 5.00KHz, 6.25KHz, 10.00KHz,
12.50KHz, 25.00KHz, 50.00KHz and 100KHz.
Squelch level (SQL-LE) - MENU 2
This function turns on the Squelch when the signal is strong; the Squelch
will stay off when the signal is weak. Set the same DCS codes of your
group and turn on the squelch.
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 + 2. The screen displays “SQL”.
Press MENU to enter to function. Press the ▲/▼ buttons or rotate the
encoder knob to select the desired Squelch level, then press MENU to
confirm. To return to the standby mode press EXIT.
