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Scales:
Percent Reflection
(for
use in reflectometer system)
:
0
to
100 and
10
to 30.
SWR (for use
with slotte
d
line)
:
4 to 1 and 10 to 3.
DB
:
0 to
10.
Ranges
:
four ranges, each scale.
Connectors
-
-
Input (on control panel)
:
REFLECTED/PROBE and
INCIDENT
/REFERENCE,
Type
BNC.
Output
(on rear plate)
:
OUTPUT
/J3
(for
oscilloscope or recorder),
Type BNC.
J4/BIAS (for barretters),
binding posts, 3/4"
spacing
.
Output Characteristics
--
OUTPUT
/J3
:
Source output
impedance
:
100,
000 ohms
.
Open
circuit
voltage
:
appr
oximately
10 volts.
Short
circuit
current
:
approximately
0
.
I
ma.
(Input
impedance of the oscilloscope or recorder
should be
greater
than
.
50
,
000 ohms
.
)
J4/BIAS
:
Source
output
impedance
:
a
pproximately 5 ohms
.
Open
circuit voltage
:
6
.
3 volts.
Cur
r
ent
i
n
t
o AC
-
60K transformer assembly:
17 ma. (when
input
li
ne
voltage
is 115
volts).
Short
circuit
c
urrent
:
approximately I ampere.
(NEVER connect
les
s tha
n 250
ohms
across
the J4/BIAS terminals.)
Power Supply Rating
--
Voltage:
115
/
230 volts
±
10%
.
Frequenc
y
:
50
/
60 cycles/sec.
Wa
t
tage
:
approxim
a
tely
90
watts.
Cables Furnished
-
=
Two Type AC
-
16K c
a
bles
,
e
a
ch
:
BNC
to
BNC, 4-foot overall,
50
-
ohm
coaxial
;
for making input connections
.
Optional
Accessories
-
-
Cable
:
Type AC
-
16D
,
BNC
to
open,
44~inch
overall, 50-ohm coaxial;
for making
connection to
oscilloscope.
Transformer Assernbly
,
Type
AC-60K
:
for use when
using barretter
detectors.
Includes
two
transformers,
to
match
the impedance
of each barretter
to
that of its Model 416A input; input
cables
and
bias supply cable
supplied.
Designed for use with
Sperry 821 or
Narda N
-
82
l
B Barretters mounted in Hewlett
-
Packard Model S485A
Waveguide Detector Mounts.
-
2
-
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