TB 9-4931-523-24
APPENDIX A
TEST INSTRUMENT IDENTIFICATION - Continued
Insertion loss
Nominal
Accuracy
at 0 dB
Model number
Manufacturer
range
(dB)
(GHz)1
(dB)
(dB)
TAD50A
Telonic
0 to 110
DC to 0.9
≤0.1
0 to10
0.03
0.15
≤0.5
0.4
0.3
≤0.7
0.9
0.5
11 to 110
0.03
3% + 0.15 dB
0.4
5% + 0.3 dB
0.9
8% + 0.5 dB
≤0.8 dB/100
TG950A
Telonic
0 to 102
DC to 0.3
MHz
DC to 0.05
0.05 or 1%
whichever is
greater
0.05 to 0.2
0.2 or 1%
whichever is
greater
0.2 to 0.3
0.5/step
TG950X9
Telonic
See TG950A
U175AFl0DB
Microlab/FXR
10
26.5 to 40
0.3
≤0.5
V727
Narda
0 to 20
26.5to 40
0 to 10
1.0
10 to 20
1.5
W175A20DB
Microlab/FXR
20
7.05 to 10
0.5
X175A10DB
Microlab/FXR
10
8.2 to 12.4
0.3
Xl75A20DB
Microlab/FXR
20
8.2 to 12.4
0.5
X370B
Hewlett-
6
8.2 to 12.4
20%
Packard
X370C
Hewlett-
10
8.2 to 12.4
20%
Packard
≤1.0
X382A
Hewlett-
10 to 50
8.2 to 12.4
0.1 or 12.4%
(7909033)
Packard
whichever is
greater
Y175A10DB
Microlab/FXR
10
12.4 to 18
0.3
Y175A20DB
Microlab/FXR
20
12.4 to 18
0.5
011-0085-00
Tektronix
10
DC to 12.4
1.0
011-0086-00
Tektronix
20
DC to 12.4
1.0
011-0087-00
Tektronix
40
DC to 12.4
1.5
0880-3100
General Radio
6
DC to 12.5
(7913358-1-2)
At DC
0.04
DC to 5
0.3
0880-3110
General Radio
See 0880-3100
0.4
(7913358-2-2)
See footnotes at end of table.
A-4
