FDDPDC3-5.15

FDDPDC3-5.15

2 Channel Combiner
Constant Impedance Type
FM Band 87.5-108 Mhz

• A constant impedance combiner consists of two or more band pass filters two 3dB couplers and a dummy load.
• One or both inputs is/are narrow band while the remaining input(s) can be broadband.
• Input impedance is not frequency dependent.

Model FDDPDC3-5.15 – Type CONSTANT IMPEDANCE
Impedance 50 Ohm
Frequency Range 87.5÷108 MHz
VSWR ±150 KHz 1.1:1 Max
Insertion Loss at ƒ0 0.25 dB Max (Narrow Band Input) 0.1 dB Max (Broad Band Input)
Return Loss ±150 KHz ≤ -26 dB
Isolation ±1.2 MHz NB to BB 30dB, BB to NB 40dB
No. of input 2 (NarrowBand+BroadBand)
No. of output 1
Connectors 7/8” EIA Narrow Band Input 1+5/8” Broad Band Input 1+5/8” Output
Max Power 4 KW on narrow-band – 8 KW on broadband
Temperature Range -20°C ÷ +50°C
Color Enamel gray ral 7001
Materials Aluminium, silver brass, copper, PTFE, stainless steel, silver plated (min 12μ thickness)

• Distortion – Free
• Custom configurations avilable
• Low loss, high isolation
• Natural Convection
• Optional group delay equalizer
• Input impedance not frequency dependent
• The frequency at the broadband input can be changed without returning the bandpass cavity filters.

Dimensions 1300(Max size) x 650 x 450 mm (51.2(Max size) x 25.5 x 17.7 inch) (H x L x W)
Net Weight =~ 65 Kg