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2712 Bandpass Filter

2712

Small footprint, up tp 15kW with blowers


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IBOC Options

(20 dB injection)


Option A: Single Station, Combined Digital/Analog Transmitter, Common Antenna



Option B: Single Station, Separate Analog and Digital Transmitters, Common Antenna, High-Level Combining



Option C: Single Station, Separate Analog and Digital Transmitters, Interleaved Antenna

Example: 6 kW ERP analog signal using 3-bay analog antenna and 2-bay digital antenna (no transmission line losses included):

Analog antenna input = 6,000 W (analog ERP) / 1.55 (analog gain) = 3,871 W
Analog return power = 3,871 W x 20 dB = 39 W
Digital antenna input = 60 W (digital ERP) / 0.99 (digital gain) = 61 W
Minimum isolator size required = 61 W + 39 W = 100 W.


Option D: Single Station, Separate Analog and Digital Transmitters, Separate Analog and Digital Antennas



Option E: Multiple Stations; Branched Combiner; Common Antenna



Option F: Multiple Stations; Branched Combiner; Separate Digital and Analog Antennas



Option G: Multiple Stations; Balanced Combiner; Combined Digital and Analog Input for Each Station



Option H: Multiple Stations; Balanced Combiner; Separate Digital and Analog Input per Station; Separate Digital and Analog Feeds to the Antenna; Single Antenna Input



Option I: Multiple Stations; Balanced Combiner; Separate Digital and Analog Input per Station; Separate Digital and Analog Feeds to the Antenna; Dual Antenna Inputs



Option J: Multiple Stations; Balanced Combiner; Split Transmission Lines to Feed Combined Digital and Analog Signals over Separate Transmission Lines



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Last updated: 01/06/2010
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