Midland ct 790, Руководство пользователя

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DESCRIPTION OF THE FUNCTIONS
CT790 displays at the same time 2 frequency bands. The frequency band pointed with the arrow
is the master frequency and it is used to transmit; the other one is the vice frequency and only can
be used to receive.
To choose the desired frequency, press the A/B key.
Under Frequency mode:
the following Nine functions can be set on both Bands: frequency step, output power, squelch
level, channel bandwidth, CTCSS, DCS, Frequency shift direction, Offset frequency, and Channel
displaying mode.
Under Channel mode:
the following seven functions can be set on both Bands: invalid-Stepping transmit output power,
CTCSS, DCS, channel bandwidth, frequency step, frequency shift direction and Offset frequency.
FREQUENCY STEP (STEP) -----
MENU
1
In standby mode, press MENU + 1 ; the screen displays “ Step ”
Press MENU to enter the function. Press the ▲/▼ buttons to select the desired frequency step,
then press the MENU button to confirm. To return to the standby mode press EXIT .
This transceiver has seven available frequency steps: 5.00KHz, 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 ten (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 “ SQUELCH ”.
Press MENU to enter to function. Press the ▲/▼ buttons to select the desired Squelch level, then
press MENU to confirm. To return to the standby mode press EXIT .
Keep pressed the side Key 2 to enable the Squelch function.
POWER SAVE(SAVE) --- MENU 3
To save battery power, this function can turn off the transceiver when no signal is received.
In standby mode, press MENU + 3 . The screen displays “ SAVE ”.
Press MENU to enter the function. Press the ▲/▼ buttons to select ON or OFF , then press MENU
to confirm.
To return to the standby mode press EXIT .
HIGH/LOW POWER SELECTION (TXP) --- MENU 4
In frequency mode, press MENU + 4 . The screen will display “ TXP ”.
Press MENU to enter the function. Press the ▲/▼ buttons to select HIGH or LOW power, then
press MENU to confirm. To return to the standby mode press EXIT .
You can choose between 5W (HIGH) or 1W (LOW) output power. By pressing the TDR key you
can switch the output power (from high to low and viceversa).