Capability Guide - Dow-Key

75 Ohm / 50 Ohm RF Matix Systems
Features:
This series of solid state switching models are
either offered with 75 ohm or 50 ohm impedance
and are ideal to be used in the broadcasting
industry for receiving and transmitting video
signals.
These systems are available with non-blocking
full fan-out (any input connected to any output
simultaneously) capability and are offered in IFband (20-200 MHz), L-band (950-2250 MHz),
and broad band (50-2150 MHz).
Generally each system is equipped with low
noise amplifiers (with high dynamic range,)
local control using LCD and pushbutton keypad,
and LAN (Ethernet) interface for remote control.
Options such as redundant power supply and
other remote interfaces such as IEEE-488
(GPIB), RS-232, RS-485, and RS-422, are
offered upon request.
The standard inputs/outputs configurations
start at 8x8 and goes all the way up 128x128.
Other configurations may be available upon
contacting Dow-Key. The chassis size of these
systems range from 2U/3U for the 8x8 up to
18U for the 64x64, and beyond 18U for larger
systems.
IF-BAND
Operating Frequency
(20-200 MHz)
VSWR (max)
1.3:1
Isolation (min)
70 dB in/in
(same inputs) N/A
(diff. inputs) 40 dB out/out
Crosstalk (min)
55 dB
Gain
0 dB +/– 1.0 dB
Gain Flatness
+/- 1.0 dB (max)
Noise Figure (max)
17.0 dB
1 dB Compression Point
0 dBm (max)
3rd Order Output IP (min)
+20 dBm
2nd Order Output IP (min)
+35 dBm
v1.0 09/09
L-BAND
(950-2250 MHz)
1.8:1
45 dB in/in
N/A
40 dB out/out
45 dB
1 dB +/– 1.0 dB
+/- 1.5 dB
13.0 dB
-7 dBm
+8 dBm
+20 dBm
Broad band (50-2150 MHz)
(50-90 MHz)
(950-2150 MHz)
1.5:1
2.0:1
50 dB in/in
40 dB in/in
45 dB out/out
40 dB out/out
45 dB out/out
40 dB out/out
55 dB
40 dB
1 dB +/– 0.50 dB
1 dB +/– 1.50 dB
+/- 1.0 dB
+/- 2.5 dB
18.0 dB
18.0 dB
0 dBm
-5 dBm
+10 dBm
+5 dBm
N/A
N/A
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