DATA SHEET
CROSS TECHNOLOGIES, INC.
REV. E
10/27/10
2017-74 Up/Downconverter, C-Band
The 2017-74 C-band Up/Downconverter converts 70 MHz to 6.7 - 7.025 GHz (Up) and 4.5 - 4.8 GHz to 70 MHz (Down) in 0.125 MHz
steps with low group delay and flat frequency response. A common synthesized local oscillator (LO) provides frequency selection for
the Up and Down converter simultaneously. Multi-function push button switches select the RF frequency, gain, and other parameters.
Front panel LEDs provide indication of DC power (green), PLL alarm for up and downconverters (red), remote operation (yellow), and
Upconverter mute (yellow). Gain can be manually controlled over a 0 to +30 dB range for the upconverter and over a +30 to +50 dB
range for the downconverter as adjusted by the front panel multi-function push-button switches. Remote operation allows selection of
frequency and gain. Parameter selection and frequency and gain settings appear on the LCD display. Connectors are BNC female for
IF and the optional external reference input and output, and N female for RF. A high stability (±0.01ppm) option is also available. It is
powered by a 100-240 ± 10% VAC power supply and housed in a 1.75” X 19” X 16” 1RU chassis.
MODEL 2017
DOWNCONVERTER
UPCONVERTER
U F=6850.000 G=+10
D F=4600.000 G=+30
UP/DOWNCONVERTER
MENU
CROSS TECHNOLOGIES INC.
EXECUTE
ALARM
REMOTE POWER
MUTE
ALARM
Front Panel
EQUIPMENT SPECIFICATIONS*
----------UPCONVERTER---------Input Characteristics (IF)
Impedance/Return Loss 75 /18 dB
Frequency
70 ± 18 MHz
Level
-40 to -10 dBm
Output Characteristics (RF)
Impedance/Return Loss 50/14 dB
Frequency
6.7 - 7.025 GHz
Level
-20 to 0 dBm
1dB compression
+10 dBm
Channel Characteristics
Gain range (adjustable) -10 to +20 dB, 1dB steps
Frequency Sense
Non-inverting
--------UP and DOWNCONVERTER-------Channel Characteristics
Frequency Response
±1.5 dB, in band; ±0.5 dB, 36 MHz BW
Spurious Response
<-50 dBC
Group Delay, max
0.015 ns/MHz2 parabolic; 0.05 ns/MHz linear; 1 ns ripple
Synthesizer Characteristics
Frequency Accuracy
±0.01 ppm
Frequency Step
1MHz (125 / 100 KHz frequency steps option X / X1
10 MHz In/Out Level
3 dBm ± 3 dB (option E)
---------DOWNCONVERTER--------Input Characteristics (RF)
Impedance/Return Loss 50 /14 dB
Frequency
4.5 - 4.8 GHz
Noise Figure, max.
15 dB (max gain)
Level
-60 to -30 dBm
1dB compression
-10 dBm (min gain)
Output Characteristics (IF)
Impedance/Return Loss 75/18 dB
Frequency
70 ± 18 MHz
Output Level Range
-10 dBm to 0 dBm
1dB compression
+10 dBm
Channel Characteristics
Gain range (adjustable) +30 to +50 dB
Image Rejection
> 50 dB, min
Frequency Sense
Non-inverting
Available Options
E - External 10 MHz ref with RF insertion
Phase Noise @ Freq
100 Hz
1kHz
10kHz
100kHz
1 MHz
O - Frequency Reference Offset Adjust
dBC/Hz
-60
-70
-80
-90
-100
M&C Remote Interfaces:
Controls, Indicators
Q - RS485
Freq/Gain Selection
direct readout LCD; pushbutton switches or remote selection
W8 - Ethernet w/Web Browser
Power; Alarm; Remote
Green LED; Red LED; Yellow LED
W18 - Ethernet w/Web & SNMP
Remote
RS232C, 9600 baud (options RS485/Ethernet, Q / W8,W18) T - Temperature Sensor
Other
X - 125 KHz frequency steps
RF Connector
N (female)
X1 - 100 KHz frequency steps
IF Connector
BNC (female)
10 MHz Connectors
BNC (female), 50/75 (option E)
Connectors/Impedance
Alarm/Remote Connector DB9 - NO or NC contact closure on Alarm
M - 50 N-type (RF), 50 BNC (IF)
Size
19 inch, 1RU standard chassis 1.75”high X 16.0” deep
Power
100-240 ± 10% VAC, 47-63 Hz, 45 watts max
*10˚C to 40˚C; Specifications subject to change without notice
CROSS TECHNOLOGIES, INC.
6170 Shiloh Road, Alpharetta, Georgia 30005
770-886-8005, FAX 770-886-7964
www.crosstechnologies.com
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