Power Monitors
and Sensors
RF Switching
Products
Passive
Components
Integrated Microwave
Assemblies (IMAs)
Introduction
Fixed Attenuators
DC-11 GHz
Type N Medium Power
Bi-Directional Fixed
Coaxial Attenuators
y
20 and 50 Watts
y
Small Size
y
Stainless Steel Connectors
Specifications
Type N (M/F), DC to 5 GHz, 20 W
FREQUENCY
RANGE
(GHz)
ATTENUATION (dB)
MODEL
766A-3
766A-6
DC-4
766A-10
766A-20
766A-30
NOMINAL
3
6
10
20
30
DEVIATION
DC-3
±0.25
±0.25
±0.25
±0.25
±0.75
3-4
±0.50
±0.50
±0.50
±0.50
±0.75
POWER INPUT
AVERAGE*
(W max.)
20
20
20
20
20
PEAK
(kW max.)
1
1
1
1
1
VSWR (max.)
DC-1
1.10
1.10
1.10
1.10
1.10
1-4
1.15
1.15
1.15
1.15
1.35
WEIGHT (max.)
oz.
5.6
5.6
5.6
5.6
5.6
gr.
159
159
159
159
159
Type N (M/F), DC to 11 GHz, 20 W
FREQUENCY
RANGE
(GHz)
ATTENUATION (dB)
MODEL
768A-3
768A-6
DC-11
768A-10
768A-20
768A-30
NOMINAL
DC-3
3
6
10
20
30
±0.25
±0.25
±0.25
±0.25
±0.25
DEVIATION
3-6
±0.50
±0.50
±0.50
±0.50
±0.50
6-11
±0.75
±0.75
±0.75
±0.75
±0.75
POWER INPUT
AVERAGE*
PEAK
(W max.) (kW max.)
20
20
20
20
20
1
1
1
1
1
DC-1
1.10
1.10
1.10
1.10
1.10
VSWR (max.)
1-4
1.15
1.15
1.15
1.15
1.15
4-6
1.20
1.20
1.20
1.20
1.20
6-11
1.30
1.30
1.30
1.30
1.35
WEIGHT (max.)
oz.
5.6
5.6
5.6
5.6
5.6
gr.
159
159
159
159
159
* Power ratings for horizontal operation at +25°C derate linearly to 5 W at +125°C
NOTE:
Temperature Coefficient: 0.0006 dB/dB/°C; Power Coefficient: 0.0005 dB/dB/W
www.nardamicrowave.com
E-MAIL:
nardaeast@L-3com.com
TEL:
+1 631 231-1700
microwave-east
an
company
51
Introduction
Integrated Microwave
Assemblies (IMAs)
Passive
Components
RF Switching
Products
Power Monitors
and Sensors
Fixed Attenuators
Specifications
Type N (M/F), DC to 5 GHz, 50 W
FREQUENCY
RANGE
(GHz)
ATTENUATION
(dB)
NOMINAL
3
6
10
20
30
DEVIATION
DC-3
765A-3
765A-6
DC-5
765A-10
765A-20
765A-30
±0.30
±0.30
±0.30
±0.30
±0.50
3-5
±0.50
±0.50
±0.50
±0.50
±0.70
POWER INPUT
AVERAGE*
(W max.)
50
50
50
50
50
PEAK
(kW max.)
2
2
2
2
2
VSWR
(max.)
DC-3
1.20
1.20
1.20
1.20
1.20
3-5
1.30
1.30
1.30
1.30
1.30
oz.
11
11
11
11
11
WEIGHT
(max.)
gr.
300
300
300
300
300
MODEL
* Power ratings for horizontal operation at +25°C derate linearly to 5 W at +125°C
NOTE:
Temperature Coefficient: 0.0006 dB/dB/°C; Power Coefficient: 0.0005 dB/dB/W
Outline Drawings
Model 766A Series
20
18
16
14
12
10
8
6
4
2
0
25
50
75
100
125
Model 768A Series
Derating Curve, Horizontal Operation
766A and 768A Series
Dimensions in inches (mm in parentheses), unless otherwise specified.
52
microwave-east
an
company
www.nardamicrowave.com
E-MAIL:
nardaeast@L-3com.com
TEL:
+1 631 231-1700
Power Monitors
and Sensors
RF Switching
Products
Passive
Components
Integrated Microwave
Assemblies (IMAs)
Introduction
Fixed Attenuators
Model 765A Series
Derating Curve, Horizontal Operation
765A Series
Derating Curve, Horizontal Operation
Models 765A, 776 and 776C Series
Dimensions in inches (mm in parentheses), unless otherwise specified.
www.nardamicrowave.com
E-MAIL:
nardaeast@L-3com.com
TEL:
+1 631 231-1700
microwave-east
an
company
53
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