WISCO International (CELWAVE SJD-480 Series)

SJD480-4T / SJD480-4T-716 / SJD480-8T The SJD Series coaxial cavity-ferrite combiners operate in the 403-512 MHz band. These combiners use low-loss, low IM dual stage isolators with integrated coaxial cavities. They are capable of handling 150 Watts forward and reflected power. No interconnecting cables are used.

The 4-channel unit requires 10 vertical rack spaces (17.5"). Optional off-set mounting brackets are available. The 8-channel combiner consists of two 4-channel units and a harness kit occupying 20 vertical rack spaces (35").These combiners offer a solution to your 450 MHz land mobile needs.

Their low-loss characteristic maximizes system performance while their high isolation minimizes the possibility of intermodulation.

Features/Benefits

� Low loss
Maximizes system performance.

� High isolation
Minimizes possibility of intermodulation.

� Modular
Easily expandable in the field.

� Fully temperature compensated
Ensures consistent performance across temperature and power range.

� Field Expansion
To combine multiple cavities requires additional modules and frequency dependent cable harness. Both new and old frequencies must be specified.

Features	SJD480-4T	SJD480-4T-716	SJD480-8T
Number of Channels	4	4	8
Insertion Loss, Max. per Channel, dB	3.5	3.5	4.0
Output Return Loss, Min., dB	10.0	10.0	9.0
Connectors - Output	N-Female	7-16 DIN-Female	7-16 DIN-Female
Height, mm (in)	444 (17.47)	444 (17.47)	888 (34.94)
Weight, kg (lb)	32.7 (72)	32.7 (72)	68.0 (150)
Product Type	Cavity-Ferrite
Frequency Band	380 MHz - 512 MHz
Application	UHF
Input Power/Channel Range, Watts	150
Minimum Channel Spacing, kHz	150
End-Mount (Yes/No)	Yes
Tx-Tx Isolation, dB	60
Frequency Range, MHz	470-494
Reflected Power, Max. Allowable from Ant., Watts	150
Bandwidth, MHz	32
Isolation, Min. Tx-Tx, dB	60
Isolation, Min. Ant.-Tx., dB	50
Channel Separation for Specifications Given, kHz	150
Continuous Power Input, Max. per Channel, Watts	150
Input Return Loss, Min., dB	19.0
Connectors - Input	N-Female
Connectors - Sampling Port	BNC-Female
Sampling Port Coupling, dB	45+/-5
Temperature Range, �C (�F)	-30 to +60 (-22 to +140)
Width, mm (in)	483 (19)
Depth, mm (in)	461 (18.14)
Mounts in 19" (483mm) EIA Rack (Yes/No)	Yes