1.2 Technical Characteristics
TABLE 1.0 2016-26 Downconverter Specifications*
Input Characteristics (RF)
Impedance/Return Loss
50
/12 dB
Frequency
2.0 to 2.5 GHz
Input Level
-70 to -20 dBm
Input 1 dB compression
-15 dBm
Output Characteristics (IF)
Impedance/Return Loss
75
/18 dB
Frequency
140 ± 36 MHz
Output level
-30 to -20 dBm
Output 1 dB compression
-15 dBm
Channel Characteristics
Gain range (adjustable)
0 to +50.0 dB
Image Rejection
> 50 dB, min.
Spurious Response
< -45 dBC in band
Frequency Response
±1.5 dB, 2.5 GHz; ± 0.5 dB, 36 MHz BW
Group Delay, max
0.01 ns/MHz
2
(parabolic), 0.03 ns/MHz (linear); 1 ns ripple
Frequency Sense
Inverting or Non-inverting (selectable)
Synthesizer Characteristics
Frequency Accuracy
± 1.0 ppm max over temp (±0.01 ppm, option H)
Frequency Step
1.0 MHz minimum (500 kHz, option 5) (125 kHz, option X)
10 MHz Level (In/Out)
+3 dBm ± 3 dB (option E)
-105
-95
-80
-70
-70
1MHz
100kHz
10kHz
1kHz
100 Hz
dBC/Hz
Phase Noise @ Freq
Controls, Indicators
Frequency Selection
Direct readout LCD; pushbutton switches
Gain Selection
Direct readout LCD; pushbutton switches
Power
Green LED
Alarm
Red LED
Remote
Yellow LED, RS 232C, 9600 baud (RS 422/485, option Q)
Other
RF Connector
BNC (female), 50
IF Connector
BNC (female), 75
10 MHz Connectors
BNC (female), 75
(option E)
Alarm/Remote Conn.
DB9 - NO or NC contact closure on Alarm
Size
19 inch, 1RU standard chassis 1.75”high X 16.0” deep
Power
100-240 ±10% VAC, 47-63 Hz, 45 watts max
Options
E
Allows ext. 10 MHz ref input, 10 MHz ref can be inserted on the RF in
H
High Stability (± 0.01 ppm) internal reference
Q
RS-422/485 remote capability
X
125 kHz frequency steps
W1
Output Level Detector
5
500 kHz frequency steps
Connector options
See TABLE 2.2
*+10˚C to +40˚C; Specifications subject to change without notice
2016-26 Manual, Rev. A
Page 4
2/2/09
