Axcera 430B, Руководство пользователя

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Axcera-430A FCC Type Acceptance Report Operational Description
February 2004 8-1
8. OPERATIONAL DESCRIPTION - MODEL AXCERA-430B
8.1 General Description
The 430B is a complete 1000-watt VHF solid-state internally diplexed television
transmitter. It operates at a nominal visual output power of 1000 watts peak sync and
an average aural output power of 100 watts, at an A/V ratio of 10 dB, 10% sound, or
50 watts at 13 dB, 5% sound.
8.2 Technical Specifications
Type of Emissions:
Visual.......................................................................5M75C3F
Aural.........................................................................250KF3E
Frequency Range .....................174 MHz to 216 MHz (any 6-MHz channel)
Output Power
Visual........... 250 to 1000 watts peak sync (front panel adjustable)
Aural......................................................... ≤ 100 watts average
Maximum Power Rating
Visual.................................................... 1000 watts peak visual
Aural................................................... 100 watts average aural
Power Consumption ...........................................................3000 watts
8.3 Performance Specifications
Visual Performance
Operating Frequency Range.....................................174 MHz to 216 MHz
RF output - Nominal:
Power..................................................... 1000 watts peak sync
Impedance.................................................................50 ohms
Connector ................................................................... Type N
Video Input:
Level.......................................................... 1 volt peak to peak
Impedance......................................................75 ohms bridging
Visual Sideband Response:
Below -1.25 MHz ........................................................... -20 dB
From -0.75 MHz to –0.5 MHz ................................... +0.5, -2.0dB
From -0.5 MHz to +3.58 MHz ......................................... ±0.5 dB
3.58 MHz to 4.18 MHz ........................................... +0.5, -1.0 dB
Below -1.25 MHz ........................................................... -20 dB
Variation of Frequency Response with Brightness..........................+0.5 dB
Differential Phase ........................................................................ ±3 °
Incidental Phase Modulation .......................................................... ±3 °
Differential Gain ...........................................................................5%