Broadcast FM HDR CIF Combiners. Mega’s Constant Impedance Filter (CIF) combiner systems are used to combine up to 10 FM channels to a single master antenna. A full range of CIF models is offered at all power levels within the FM band.
Each unit is factory tuned for optimum performance and may be readily re-tuned in the field to any other FM frequency desired. Mega’s CIF combiners also have the ability of future expansion.
Mega’s CIF combiner systems have been designed with HD Radio in mind, with optimized passband covering the complete FM channel (±200MHz).
These combiners may be set up as single input devices or dual input devices to facilitate High Level HD combining.
Special configurations are available, for more information about Broadcast FM HDR CIF Combiners, contact Mega’s sales department.
Up to 5kW
Typical Electrical Performance
VSWR Fc +/- 200 kHz: 1.05:1
Insertion Injection port to Broadband port: > 35 dB Nominal
Isolation Injection port to Injection port: > 50 dB
5kW CIF Combiner 3-Cavity
Insertion Loss: < 0.45 dB
Power Handling: 5kW
Cavity size: 6″
Weights: 148 lbs (67.1 kg)
5kW CIF Combiner 4-Cavity
Insertion Loss: < 0.70 dB
Power Handling: 5 kW
Cavity size: 6″
Weight: 212 lbs (96.1 kg)
Options:
Input: Type N, 7/16 DIN, 7/8, 1-5/8
Output: 7/8, 1-5/8
Up to 8kW
Typical Electrical Performance
VSWR Fc +/- 200 kHz: 1.05:1
Insertion Injection port to Broadband port: > 35 dB Nominal
Isolation Injection port to Injection port: > 50 dB
8kW CIF Combiner 3-Cavity
Insertion Loss: < 0.45 dB
Power Handling: 8kW
Cavity size: 6″ with cooling fan
Weight: 156 lbs (70.7 kg)
8kW CIF Combiner 4-Cavity
Insertion Loss: < 0.70 dB
Power Handling: 8kW
Cavity size: 6″ with cooling fan
Weight: 220 lbs (99.7 kg)
Options:
Input: Type N, 7/16 DIN, 7/8, 1-5/8
Output: 1-5/8
Up to 22kW
Typical Electrical Performance
VSWR Fc +/- 200 kHz: 1.05:1
Insertion Injection port to Broadband port: > 35 dB Nominal
Isolation Injection port to Injection port: > 55 dB
Weight: 312 lbs (141.4 kg)
22kW CIF Combiner 3-Cavity
Insertion Loss: < 0.22 dB
Power Handling: 22kW
Cavity size: 12″
Weight: 462 lbs (209.4 kg)
22kW CIF Combiner 4-Cavity
Insertion Loss: < 0.26 dB
Power Handling: 22 kW
Cavity size: 12″
Options:
Input: 1-5/8, 3-1/8
Output: 1-5/8, 3-1/8
Up to 45kW
Typical Electrical Performance
VSWR Fc +/- 200 kHz: 1.05:1
Insertion Injection port to Broadband port: > 35 dB Nominal
Isolation Injection port to Injection port: > 55 dB
45kW CIF Combiner 3-Cavity
Insertion Loss: < 0.15 dB
Power Handling: 45 kW
Cavity size: 24″
Weight: 670 lbs (303.7 kg)
45kW CIF Combiner 4-Cavity
Insertion Loss: < 0.22 dB
Power Handling: 45 kW
Cavity size: 24″
Weight: 842 lbs (381.7 kg)
Options:
Input: 3-1/8, 4-1/16
Output: 3-1/8, 4-1/16, 6-1/8
