Contemporary Research QDA4-45 RF - Manual (Page 4)

Contemporary Research 4 QDA4-45
Specifications
Physical
Size:8.5” [216mm] wide x 1.75” [38mm] height (1RU) x 6.0” [153mm] deep
Weight: 1.1 lb [500g]
Enclosure: Durable metal enclosure, rack mountable
Front Panel
Input Selection, 1 or 4 inputs, Green LED indicators
RF Gain Selection with LED display, 0-25 dB for four inputs, 0-32 dB for one
Back Panel
Inputs: 4 F Connectors
Amp Out: 1 F connector
DC Power: Power 2.1 mm coaxial jack (inside center conductor positive), 700 mA maximum, 11.5 to 12.7 VDC
Use the included 12 VDC power supply, not with shared 4-6A DC power supplies.
Inputs
Max Input Level: 40 dBmV
Combiner Isolation: 38 dB typical, 30 dB minimum, 54 - 860 MHz
Return Loss:13 dB typical for single input, 30 dB typical for all
Output
Input 1 only: 0-32 dBmV gain, low noise, linear performance through 860 MHz
All Inputs: 0-25 gain (7 dBmV loss from combiner)
Max Level: Maximum level +50 dBmV
CTB: Composite Triple Beat -60 dB, 134 channels at +44 dBmV per channel
Noise: Noise Figure 4.5 typical
Return Loss: 17 dB typical
Includes
Options PS12-1 1 A 12 VDC power supply
RK1 Rack Kit for single unit, 1 RU
RK2 Rack Kit for dual units, 1 RU