Crown FM250 Bedienungsanleitung PDF herunterladen (Seite 17)

3–2

FM10000 User’s Manual

These steps summarize the operating procedures you should use for the initial

operation of the power amplifier and power supply. More detailed information

follows.

1.Ensure that the external remote control unit is properly connected to the

transmitter controller port A (see illustration 2-

15, Section 2.5, page 2–5

for proper pin configuration).

2.Connect Antenna

feed-line to the output of the Low Pass Filter.

3.1 Initial Power-up Procedures

3. Locate the Remote/Local switch and select "Local". Verify the Local Enable 

switch is in the "0" position (indicating OFF) and that the enable LED is OFF.



4. Locate the Exciter (Crown FM250) and be certain that the Power and Carrier 

switches are ON as well as the breaker on the back of the unit. Refer to Low 

Power Manual FM30 - FM500 for further instructions.



5. Locate Fwd/Refl power select switch and verify it is in Fwd position. The 

Green LED will indicate the proper position once power is ON.



6. Apply AC power to cabinet.



7. Adjust the RF output power on the exciter (Crown FM250) for 250 - 275 watts.



SPECIAL NOTE : This system is not a drive dependent amplifier design; 

therefore drive level must remain constant regardless of main output level. Use 

remote control to raise and lower RF output power, not the RF output level of the 

driver.

Note: The FM10000 is set for 10000 watts at 98MHz at the factory unless a 

specific frequency or power is specified at the time of order. 



8. Enable the RF power by moving the "Local Enable" to the 'up' position. This 

should be indicated with a RED LED below the switch.

Illustration 3-1 Transmitter Controller Front Panel Controls

Power control

Local Enable switch

Remote/Local switch

Raise/Lower RF

Power control

RF Power (KW)

Fwd/Refl power

select switch

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 37 38

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