Crown FM250 Manual do Utilizador descarregar pdf (Página 7)

Getting Acquainted

1–3

1.2 Transmitter Package Specifications

RF Power Output:2500 to 11000 watts continuous with remote

controlled power adjust

RF Drive Requirement:250 watts for full output

RF Output Impedance: 50 ohms (unbalanced)

Maximum SWR:2.0:1 (With power foldback at high SWR)

Frequency Range:87–108 MHz

RF Harmonics/Spurious Products: Better than –80 dB

Asynchronous AM S/N Ratio:Meets FCC specifications (-50 dB)

(typically > 60 dB)

Synchronous AM S/N Ratio:Meets FCC specifications (-50 dB)

(typically > 60 dB)

Operating Environment:

Temperature Range: 0°–50°C at sea level

Humidity Range: 0–80% at 20°C (noncondensing)

AC Power:240 Volts AC +10/-15%, 50–60 Hz with neutral

Power Consumption:Less than 18000 watts at 11000 watts RF output

typical

Power Factor: .96 typical

Overall Efficiency: 70% typical

RF Output Connector:1 5/8 " EIA flange

Cabinet dimentions : 7 x 17.25 x 23 inches (17.78 x 43.82 x

58.42 cm) exclusive of rack ears, but inclu-

sive of connectors

Overall dimentions : 65 x 24 x 29 (cabinet only)

83 x 27 x 29 (including external filter)

Weight:FM10K cabinet (950 lbs)

FM10K shipping weight (997 lbs)

Note: System performance is specified using Crown Broadcast

Model FM250 Exciter where applicable.

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Crown FM250 Manual do Utilizador Página 7