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Model Configurations
DC7128A
DC7128
Dual Directional
Coupler
1500 Watts CW
0.8–2.8 GHz
AR RF/Microwave
Instrumentation
160 School House Rd
Souderton, PA 18964
215-723-8181
For an applications engi-
neer call:800.933.8181
www.arworld.us
Features
The Model DC7128A is a high power dual directional coupler with excellent frequency range and
power handling capability. The wide range assures flexibility in coupling high power amplifiers to pow-
er meters, spectrum analyzers and other measuring instruments. The dual directional design allows the
user to monitor both forward and reflected power, a much needed characteristic in RF susceptibility
testing for amplifier overdrive protection, field control and load protection. Low insertion loss allows
efficient coupling to the load. The Model DC7128A is intended for use with amplifiers operating with-
in the frequency and power range.
The export classification for this equipment is EAR99. These commodities, technology or software
are controlled for export in accordance with the U.S. Export Administration Regulations. Diversion
contrary to U.S. law is prohibited.
Specifications
FREQUENCY RANGE: 0.8–2.8 GHz
POWER (maximum): 1500 watts CW
COUPLING FACTOR: 50 dB ±1.0 dB (includes flatness)
COUPLING FLATNESS: ± 0.8 dB
DIRECTIVITY: Typical, 25 dB; Minimum, 20 dB
INSERTION LOSS: 0.2 dB maximum
IMPEDANCE (Main Line): 50 ohms, VSWR 1.3:1 maximum
CONNECTORS: See Model Configurations on reverse
WEIGHT: 0.7 kg (1.5 lb)
SIZE (W x H x D): 7.6 x 7.6 x 2.9 cm; 3.0 x 3.0 x 1.125 in
EXPORT CLASSIFICATION: EAR99
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