ERI’s 788 High Power Power HD Radio FM Analog/IBOC Diplexer is modular in construction and designed to provide close channel combining for analog and digital FM broadcasting. ERI’s innovative All Pass design allows stations to operate digitally at powers up to -10dBc. This All Pass Diplexer maintains high e fficiency while incurring a much smaller penalty to performance than other methods currently offered. As with all ERI products, the 788 Series use a temperature compensated design to allow the system to meet published specifications from cold start as well as normal operating conditions. All components in the RF path are copper or silver plated to maintain the lowest losses possible. The modules are designed to be oor mounted and is optionally available fully assembled within a mobile frame to ease installation.
Medium power iBOX hybrid combiner. Broadband for entire FM band. Port connections: Analog RF Input Power Rating: 12 kW; Analog Input: 1-5/8-inch EIA flanged; Digital Input: 1-5/8-inch EIA flanged; Antenna Output: 1-5/8-inch EIA flanged; Reject Load Output: 1-5/8-inch EIA flanged; and Combiner set to 10 dB nominal coupling level. Requires customer supplied reject load sized to dissipate 90% of digital transmitter operating power output PLUS 10% of analog transmitter output. It is recommended that this load be sized for approximately twice the calculated requirement and be convection cooled. Interconnecting transmission line customer supplied or quoted separately.
Medium power iBOX hybrid combiner. Broadband for entire FM band. Port connections: Analog RF Input Power Rating: 30 kW; Analog Input: 3-1/8-inch EIA flanged; Digital Input: 1-5/8-inch EIA flanged; Antenna Output: 3-1/8-inch EIA flanged; Reject Load Output: 1-5/8-inch EIA flanged; and Combiner set to 10 dB nominal coupling level. Requires customer supplied reject load sized to dissipate 90% of digital transmitter operating power output PLUS 10% of analog transmitter output. It is recommended that this load be sized for approximately twice the calculated requirement and be convection cooled. Interconnecting transmission line customer supplied or quoted separately.
High power iBOX™ hybrid combiner. Broadband for entire FM band. Port connections: Analog RF Input Power Rating: 55 kW; Analog Input: 4-1/16-inch EIA flanged; Digital Input: 3-1/8-inch EIA flanged; Antenna Output: 4-1/16-inch EIA flanged; Reject Load Output: 3-1/8-inch EIA flanged; and Combiner set to 10 dB nominal coupling level.; Requires customer supplied reject load sized to dissipate 90% of digital transmitter operating power output PLUS 10% of analog transmitter output. It is recommended that this load be sized for approximately twice the calculated requirement and be convection cooled. Interconnecting transmission line customer supplied or quoted separately.
High power iBOX™ hybrid combiner. Broadband for entire FM band. Port connections: Analog RF Input Power Rating: 80 kW; Analog Input: 6-1/8-inch EIA flanged; Digital Input: 3-1/8-inch EIA flanged; Antenna Output: 6-1/8-inch EIA flanged; Reject Load Output: 3-1/8-inch EIA flanged; and Combiner set to 10 dB nominal coupling level. Requires customer supplied reject load sized to dissipate 90% of digital transmitter operating power output PLUS 10% of analog transmitter output. It is recommended that this load be sized for approximately twice the calculated requirement and be convection cooled. Interconnecting transmission line customer supplied or quoted separately.
High performance iBOX Mask-960, IBOC Spectral Compliance Mask Filter. Temperature compensated. Port connections: Input: 1-5/8-inch EIA flanged; Output: 1-5/8-inch EIA flanged; and Interconnecting transmission line customer supplied or quoted separately.
The CD324-8DB is intended for use by FM radio facilities increasing IBOC injection to -14 dB (4%). The CD324 design is based on the field proven 10 dB FM IBOC Hybrid Combiner used extensively in early IBOC FM field trials. By reducing the coupling level to 8 dB the amount of digital power lost to the system reject load is reduced, while the analog power loss increases slightly.
IBOC 10 dB Hybrid Combiner, with no bypass. Port connections: Analog RF Input Power Rating: 35 kW; Analog Input: 3-1/8-inch EIA unflanged, male; Digital Input: 1-5/8-inch EIA unflanged, male; Antenna Output: 3-1/8-inch EIA unflanged, male; Reject Load Output: 1-5/8-inch EIA unflanged, male; and Combiner set to 10 dB nominal coupling level. Requires customer supplied reject load sized to dissipate 90% of digital transmitter operating power output PLUS 10% of analog transmitter output. It is recommended that this load be sized for approximately twice the calculated requirement and be convection cooled. Interconnecting transmission line customer supplied or quoted separately.
IBOC 10 dB Hybrid Combiner, with manual bypass. Port connections: Analog RF Input Power Rating: 35 kW; Analog Input: 3-1/8-inch EIA unflanged, male; Digital Input: 1-5/8-inch EIA unflanged, male; Antenna Output: 3-1/8-inch EIA unflanged, male; Reject Load Output: 1-5/8-inch EIA unflanged, male; and Combiner set to 10 dB nominal coupling level. Requires customer supplied reject load sized to dissipate 90% of digital transmitter operating power output PLUS 10% of analog transmitter output. It is recommended that this load be sized for approximately twice the calculated requirement and be convection cooled. Interconnecting transmission line customer supplied or quoted separately.
IBOC 10 dB Hybrid Combiner, mounted in unitized frame with reject load and manual coaxial patch panel. Port connections: Analog RF Input Power Rating: 35 kW; Analog Input: 3-1/8-inch EIA unflanged, male; Digital Input: 1-5/8-inch EIA unflanged, male; Antenna Output: 3-1/8-inch EIA unflanged, male; Reject Load Output: 1-5/8-inch EIA unflanged, male; and Combiner set to 10 dB nominal coupling level. Interconnecting transmission line customer supplied or quoted separately.
IBOC 10 dB Hybrid Combiner, mounted in unitized frame with reject load and motorized coaxial switch. Port connections: Analog RF Input Power Rating: 35 kW; Analog Input: 3-1/8-inch EIA unflanged, male; Digital Input: 1-5/8-inch EIA unflanged, male; Antenna Output: 3-1/8-inch EIA unflanged, male; Reject Load Output: 1-5/8-inch EIA unflanged, male; and Combiner set to 10 dB nominal coupling level. Interconnecting transmission line customer supplied or quoted separately.
Model 970-8-iBOX constant impedance FM IBOC mask filter or combiner. Includes eight cavities, 3 dB hybrids, and reject load. Specify operating frequency, injection level, and required input and output connectors at time of order.
Model 973-8-iBOX constant impedance FM IBOC mask filter or combiner. Includes eight cavities, 3 dB hybrids, and reject load. Specify operating frequency, injection level, and required input and output connectors at time of order.
Wall/ceiling mounting bracket for iBOX-H-4 and iBOX-H-6 Hybrid Combiners. Mounting hardware is customer supplied.
Wall/ceiling mounting bracket for iBOX-M-3 and iBOX-M-1 Hybrid Combiners. Mounting hardware is customer supplied.
All designs, specifications, and availabilities of products and services presented in this publication are subject to change without notice.