Comtech EF Data DT-4500 Series - Manual (Page 24)

DT4500 Series Down Converters MN/DT4500.IOM
Introduction Revision 1
6
Table 2. DT-4503/E C-Band Down Converter Specifications
Characteristic Specification
Frequency Range
DT-4503/E
Conversion
Step
Size
Preset Channels
Stability Over Time
Stability Over Temp
4500 to 4800 MHz
Dual, No Inversion
125 kHz standard, 1kHz optional
32 Frequencies
± 1 x 10
-9 /Day
± 1 x 10 -8 /Day 0 to 50 °C ( 32 to 122 °F)
RF Input
Noise Figure
Level
Impedance
Return
Loss
11 dB Maximum at 0 dB Attenuation
-45 dBm Typical
50
Ω
20 dB Min. with RF/IF Connector Module
IF Output
Output Level
Range
Intermodulation
Non–carrier Spurious
Carrier Spurious
Return Loss
Impedance
+20 dBm at 1 dB Compression
52 to 88 or 104 to 176 MHz), optional 50 to 80
MHz or 100 to 180 MHz (see Note)
-60 dBc @ 0 dBm Output SCL
-80 dBm
-65 dBc @ +3 dBm Output
23 dB Minimum with RF/IF connector module
50 or 75
Ω
Transfer
Gain
Attenuation Adjust
Gain Stability
Ripple: 70 MHz IFCF
140 MHz IFCF
Slope
Image
Rejection
AM to PM
IF Bandwidth
45 dB ± 2 dB
0 to 20 in 0.25 dB Steps
0.1 dB Steps Optional
± 0.25 dB/Day
± 0.25 dB (± 18 MHz), optional ± 20 MHz,
(see Note)
0.75 dB (± 36 MHz), optional ± 40 MHz,
(see Note)
0.05 dB/MHz
-80 dB Inband
0.1
o ./ dB for Output up to –5 dBm
36 or 72 MHz), optional 40 or 80 MHz,
(see Note)
External Ref.
Input 5 or 10 MHz @ +3dBm
Optional 10 MHz Rear Panel Reference Output
Group Delay
Linear Group Delay
Parabolic Delay
Group Delay Ripple
0.03 ns/MHz
0.01 ns/MHz
2
1.0 ns Peak-to-Peak