Crescend C5 Series Podręcznik - Strona 12

Przeglądaj online lub pobierz pdf Podręcznik dla Wzmacniacz Crescend C5 Series. Crescend C5 Series 17 stron. Continuous duty power amplifier

3.3.

INITIAL STARTUP

To perform the initial start-up, proceed as follows:

Check to ensure that all input and output cables are properly connected and tightened.

Note: Use high quality coaxial cable and connectors. Properly install and solder all

connectors for reliability.

CAUTION:

Before applying power, make sure that the input and output of the

amplifier are properly terminated in 50 ohms. Do not operate the

amplifier without a load attached. Refer to Table 1-2 for input

power requirements. Excessive input power will damage the

amplifier.

NOTE:

The output coaxial cable between the amplifier and the antenna

must be 50 ohm coaxial cable.

2. Apply DC power to the amplifier. Verify that the power supply measures 13.8 ± 0.1VDC.

The fan will come on immediately for a few seconds and then turn off.

3. Visually check the indicators on each amplifier module, and verify the following:

The DC PWR ON indicator (green) should be on.

All ALARM LED indicators (red) should be off.

4. Turn on external exciter/transceiver and apply RF input signal. The fan should turn on

after approximately 3 seconds.

5. Turn off RF input signal. The fan should continue running, but turn off after

approximately 6-8 seconds.

040003A001 Rev C