• COMBINER 2 CHANNELS 

• DOUBLE BALANCED BRIDGE 

• FM BAND 87.5÷108 MHz 

• BAND II 

The double balanced bridge system consist of two band-pass filter, two -3dB coupler and a absorber. One of both inputs has a narrow-band characteristic (complying with the pass-band functions of the band pass filters), while the remaining input features a broadband characteristic within the operating frequency range of -3dB couplers, both inputs exhibits a frequency independent load impedance to the RF source. 

TYPICAL SPECIFICATIONS
Model	FTDPDC2-AC – Type DOUBLE BRIDGE
Impedance	50 Ohm
Frequency Range	87.5-108 MHz
VSWR ±150 KHz	1.1:1 max
Insertion Loss	at 0 f 0.3 dB Max (Narrow Band Input) 0.08 dB Max (Broad Band Input)
Return Loss ±150Khz	≤ -26 dB
Isolation ± 2 MHz	≥ 32 dB
No. of Input	3 (2 Narrow Band + 1 Broad Band)
No. of Output	1
Connectors	Narrow Band Input 7/8” (Opt . 1+5/8”) Broad Band Input 1+5/8” Output 1+5/8”
Max Power	4 KW Narrow Band 5 KW Broad Band
Working Temperature	-20°C ÷ +50°C
Colour	Enamel gray ral 7001
Materials	Aluminium, Brass, Copper, PTFE, Stainless Steel, Silvering (min 12µm thickness)

FEATURES 

• Distortion – Free Transmission 

• Double Balanced Bridge system with pass stop 

• Frequency independent input impedance 

• The frequency at the broadband input can be varied without retuning of the pass-band cavity filters. 

• The broadband input can be used as spare input for expansion without requiring modification of the existing pass-band cavity filters 

• If only narrow band input is being used, an extremely high coupling attenuation (directional coupler attenuation plus filter attenuation) can be achieved for very small frequency spacings. 

• Low loss, high isolation 

• Natural convection 

• Option: Group delay equaliser 

Dimensions	1300(Max size)×1300×480 mm (51.2(Max size)×51.2×18.9 inch) (H×L×W)
Net Weight	≅130 Kg