DAPAudio COM-54 Руководство пользователя - Страница 9

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Set Up and Operation

Before plugging the unit in, always make sure that the power supply matches the product specification

voltage. Do not attempt to operate a 120V specification product on 230V power, or vice versa.

Press the powerswitch to turn the COM-54 on. Turn volume down, by pressing SET. The display shows AF

out, then the display shows VR1. Adjust the Functions to the desired position.

17)

RF Indicator

18)

Audio Frequency Indicator

19)

Signal Channel Indicator

20) Antenna

A Receiving Indicator

21) Antenna

B Receiving Indicator

22)

MUTE Indicator

MENU Options

1. SQUELCH  0-40 dB, in 5 dB steps

2. DISPLAY  FREQU / CHANNL

3. TUNE  785.100 – 811.000, in steps of 0.025 Hz

4. LOCK  LOC OFF / LOC ON

Sensitivity Adjustment Menu (SQUELCH)

Scroll through the menu by using the SET button, until the LCD shows:

after a second the display shows:

This menu is for adjusting the sensitivity (Mute Control). It is used to strengthen the system's capacity of

preventing disturbing: The range is from 0 – 40 dB. The greater the value, the lower the sensitivity is, the

smaller the receiving distance, the stronger capacity of preventing disturbance. On the other hand, a

lower value (Minimum 15dB), provides a higher sensitivity and increases the receiving distance, the

capacity of preventing disturbance however will reduce. Usually, the normal setup is 20 dB (Factory is

15dB).

Fig. 4