Page 1
OPERATION AND MAINTENANCE MANUAL
FOR SWR AUTOTESTERS AND BRIDGES
1. INTRODUCTION
This manual provides product descriptions and
specifications for WILTRON Series 59, 63, and 97
SWR Autotesters and Series 58, 60, 62, and 87 SWR
Bridges. It also includes procedures for measuring
the directivity of these components.
2. GENERAL DESCRIPTION
The SWR Autotesters and bridges (Figure 1) are
broadband microwave measurement instruments.
They are used with other test instruments for making fixed-- and swept--frequency return loss (SWR)
measurements over a wide range of radio frequencies. Return loss measurements are made to check
the performance of systems, subsystems, and microwave components such as amplifiers, directional
couplers, attenuators, filters, splitters, and terminations.
The WILTRON SWR Autotesters and bridges are
precision--balanced Wheatstone bridges. Except for
the two 4--port comparison--type instruments (Models 59A50 and 58A50) that use an offset termination
in the reference arm, every model has an internal
precision reference termination included in one arm
of its bridge. The major difference between the SWR
Autotester and the SWR bridge is that the SWR Autotester contains a built--in RF detector.
3. PERFORMANCE SPECIFICATIONS
Performance specifications for SWR Autotesters are
listed in Table 1; specifications for SWR bridges are
listed in Table 2.
Figure 1. Typical WILTRON SWR Autotester and SWR Bridge
490 JARVIS DRIVElMORGAN HILL, CA 95037-2809
P/N: 10100-00008
REVISION : M
PRINTED: NOVEMBER 1994
COPYRIGHT 1983 WILTRON CO.
Page 2
Table 1. SWR Autotester Performance Specifications
Models
Directivity
(dB)
Accuracy➀
Input Z
(ohms)
Test Port
Connector
59 Series Comparison SWR Autotester, 10 MHz to 18 GHz
59A50 36
0.01–8 GHz:
8–18 GHz:
0.016 ±0.06ρ2 ➁➂
0.01 6 ±0.1ρ
2
50 GPC–7
63 Series SWR Autotesters, 10 MHz to 4 GHz
63A50
63N50 Type N Male
40➃
0.01 ±0.06ρ
2
50
GPC7
63NF50 Type N Female
97 Series SWR Autotesters, 10 MHz to 18GHz
0.01–8 GHz 8–18 GHz
97A50 36
97A50-1 40
0.016 ±0.06ρ
0.01 ±0.06ρ
2
0.016 ±0.1ρ
2
0.01 ±0.1ρ
2
2
GPC–7
Physical
Dimensions:
7.6 x 5.1 x 2.8 cm
(3 x 2 x 1
1
⁄8 in.)
plus connectors
Weight:
340 g (12 oz)
Dimensions:
6.7 x 5.1 x 2. 54 cm
5
⁄8 x 2 x 1 in.)
(2
plus connectors
Weight:
340 g (12 oz)
97S50
35
0.018 ±0.08ρ
97SF50 WSMA Female
97S50-1
38
0.013 ±0.08ρ
2
0.018 ±0.12ρ
2
0.013 ±0.12ρ
2
50
2
97SF50-1 WSMA Female
97N50
35
0.018 ±0.08ρ
2
0.018 ±0.12ρ
2
WSMA Male
WSMA Male
Type N Male
Dimensions:
7.6 x 5.1 x 2.8 cm
1
(3 x 2 x 1
⁄8 in.)
plus connectors
Weight:
340 g (12 oz)
97NF50 Type N Female
97N50-1
38
0.013 ±0.08ρ
2
0.013 ±0.12ρ
2
Type N Male
97NF50-1 Type N Female
All Models
Insertion Loss (from input to test port): 6.5 dB nominal
Detector Output Polarity: Negative
Output Time Constant: 2 µs
Maximum Power Input: 0.5 watts (+27 dBm)
Input Connector: Type N Female
Detector Output Connector: BNC Female
➀ Where ρ is the refle cti on coe fficie nt bein g mea sured . Ac curacy includes the effects of test port reflections and directivity.
➁ When used with 28A50-1 Precision Termination. The effective di rectivity of the SWR Autotester can be increased to 60 dB by using the
Ripple Extraction return lo ss measure men t technique with the 18A50 Air Line and 29A50 -20 Offset Termination.
➂ See parag rap h 4 fo r exp lana tion of accu racy and other terms.
➃ 46 dB directivity available as Option 1. Option 1 accuracy: 0.005 ±0.06 ρ2.
2 SWR OMM
Page 3
Table 2. SWR Bridge Performance Specifications
Models
Directivity
(dB)
Accuracy➀
Input Z
(ohms)
Test Port
Connector
58 Series Comparison SWR Bridge, 2 to 18 GHz
2–3 GHz:
58A50 35
4–18 GHz:
0.018 ±0.32ρ2 ➁ ➂
3–4 GHz:
0.018 ±0.2ρ
0.018 ±0.13ρ2
2
50 GPC–7
60 Series SWR Bridges, 5 MHz to 2 GHz
60A50
60N50 Type N Male
40➃
0.01 ±0.09ρ
2
50
GPC–7
60NF50 Type N Female
62 Series SWR Bridges, 10 MHz to 1GHz
62N75➄
62NF75 75 Type N Female
40
0.01 ±0.12ρ
2
75 Type N Male
62B75 75 BNC Male
62BF75 75 BNC Female
87 Series SWR Bridges, 2 to 18 GHz
87A50
87A50-1
35
38
2–3 GHz:
3–4 GHz:
4–18 GHz:
2–3 GHz:
3–4 GHz:
4–18 GHz:
0.018 ±0.32ρ
0.018 ±0.2ρ
0.018 ±0.13ρ2
0.013 ±0.32ρ
0.013 ±0.2ρ
0.013 ±0.13ρ2
2
2
2
2
50 GPC–7
Physical
Dimensions:
6.7 x 5.1 x 2.2 cm
5
⁄8 x 2 x 7⁄8 in.) plus connectors
(2
Weight:
340 g (12 Oz)
Dimensions:
6.7 x 5.1 x 2. 54 cm
5
⁄8 x 2 x 1 in.) plus connectors
(2
Weight:
340 g (12 oz)
Dimensions:
6.7 x 5.1 x 2. 54 cm
5
(2
⁄8 x 2 x 1 in.) plus connectors
Weight:
170 g (6 Oz)
Dimensions:
7.3 x 5.1 x 2. 86 cm
5
⁄8 x 2 x 1 1⁄8 in.) plus connectors
(2
Weight:
340 g (12 Oz)
All Models
Insertion Loss (from input to test port): 6.5 dB nominal
Maximum Power Input: 0.5 watts (+27 dBm)
Input Connector: Type N Female, stainless steel, except 67B and 67F Series that have BNC Female
➀ Where ρ is the reflection coefficient being measure d. Accuracy includes the effects of test port reflections and directivity.
➁ When used with 28A50-1 Precision Termination. The effective dire ctivity of the bridge can be increased to 60 dB by using the Ripple
Extraction re turn lo ss measu remen t techniqu e with the 18A5 0 Air Line and 29 A50-20 Offset Termination.
➂ See pa ragrap h 4 fo r exp lana tion of ac curacy and other terms.
➃ 46 dB directivity available as Option 1. Option 1 accuracy: 0.005 ±0.09 ρ2.
➄ 75Ω Type N Female connectors will with stand oc casional mating with 50Ω connectors with ou t damage.
SWR OMM 3
Page 4
4. EXPLANATION OF SWR
REFERENCE
PLANE
MALE
PIN
DEPTH
(INCHES)
REFERENCE
PLANE
FEMALE
PIN
DEPTH
(INCHES)
0
1
2
3
4
5
1
2
3
4
2
11
2
AUTOTESTER AND BRIDGE
SPECIFICATIONS
Certain key specification terms are explained below.
a. Accuracy. This three-element term defines
the accuracy with which an SWR Autotester or
bridge can make a reflected signal measurement. The three elements (
0.01 ±0.06 ρ2) are
described below.
1st Element: (0.01) is the directivity of the SWR
Autotester or bridge expressed as a reflection
coefficient (40 dB for this example, see Table 6).
2nd and 3rd Elements: ±0.06ρ
2
is the depreciation in accuracy due to test port mismatch (impedance discontinuity). Element 2 (0.06) is the
inherent test port mismatch expressed as a reflection coefficient. The 3rd element, rho (ρ), is
the reflection coefficient of the device under test
(DUT). The entire expression describes the
measurement uncertainty caused by the reflected signal being re-reflected by the test port
mismatch.
a. Beware of Destructive Pin Depth on Mating
Connectors. Before mating, measure the pin
depth (Figure 2) of the device that will mate with
the SWR Autotester or bridge, using a WILTRON
Pin Depth Gauge (Figure 3) or equivalent. Based
on SWR Autotesters and bridges returned for
repair, destructive pin depth of mating connectors is the major cause of failure in the field. (A
destructive pin depth has a center pin that is too
long in respect to the connector’s reference
plane.) When the SWR Autotester or bridge is
mated with a connector having a destructive pin
depth, damage will likely occur to the SWR
Autotester or bridge.
b. Directivity. A figure of merit expressed in dB.
This figure represents the ratio of the power
levels as seen at the output port when (1) the
test port signal is fully reflected, and (2) the test
port is perfectly terminated.
c. Frequency Sensitivity. The maximum varia-
tion in output power/voltage that can be expected due to a change in frequency over the
specified range when the input power is held
constant
d. Output Time Constant. The amount of time
required for the selected output pulse to either
rise from the 10% to the 90% point or fall from
the 90% to the 10% point on the waveform.
5. PRECAUTIONS
The SWR Autotesters and bridges are high-quality,
precision laboratory instruments and should receive
the same care and respect afforded such instruments. Complying with the following precautions
will guarantee longer component life and less equipment downtime due to connector failure. Also, such
compliance will ensure that SWR Autotester or
bridge failures are not due to misuse or abuse—two
failure modes not covered under the WILTRON war-
ranty.
Figure 2. N Connector Pin Depth Definition
Figure 3. Pin Depth Gauge
The center pin of SWR Autotester or bridge connectors has a precision tolerance measured in
mils (1/1000 inch). Connectors on test devices
that mate with SWR Autotesters and bridges
may not be precision types and may not have the
proper depth. They must be measured before
mating to ensure suitability. When gauging pin
4 SWR OMM
Page 5
depth, if the SWR Autotester or bridge connector
Impe da n ce
Connector Type (Te st Port
Connector on Bridg es and
SWR Autotesters
Impe da n ce
measures out of tolerance (Table 3) in the “+”
region of the gauge (Figure 3), the center pin is
too long. Mating under this condition will likely
damage the SWR Autotester or bridge connector.
On the other hand, if the test device connector
measures out of tolerance in the “–” region, the
center pin is too short. While this will not cause
any damage, it will result in a poor connection
and a consequent degradation in performance.
b. Avoid Over Torquing Connectors. Over
torquing connectors is destructive; it may damage the connector center pin. Finger-tight is usually sufficient, especially on Type N connectors.
Should it be necessary to use a wrench to tighten
SMA or WSMA connectors, use a torque wrench
that breaks at 5 inch-pounds. As a general rule,
never use pliers to tighten connectors.
c. Do Not Disturb Teflon Tuning Washers On
Connector Center Pins. The center conduc-
tor on many SWR Autotester or bridge connectors contains a small teflon tuning washer located near the point of mating (interface) (Figure
4). This washer compensates for minor impedance discontinuities at the interface. The
washer’s location is critical to the SWR
Autotester or bridge’s performance. Do not dis-
turb it.
TEFLON WASHER
Table 3. Pin-Depth Tolerance, SWR
Autotesters and Bridges
Series
58, 59 ,
87,
1
97
58, 59,
87, 97
97 TEST – N 207 –0. 000
60, 63 INPUT – NF 207 +0.000
60 OUTPUT – NF
60, 63 TEST – A +0.000
62 INPUT – NF 207 +0.000
62 TEST – N 207 –0. 000
Port/
Conn. Type
INPUT – NF 207 +0.000
OUTPUT – NF 207 +0.000
TEST – A +0.000
TEST – NF 207 +0.000
TEST – S
TEST – SF
TEST – N 207 +0.000
TEST – NF 207 +0.000
OUTPUT – NF
TEST – NF 207 +0.000
2
2
Pin Depth
(MILS)
–0.010
–0.010
–0.003
+0.003
–0.003
–0.0025
–0.0035
–0.0003
–0.0007
–0.020
–0.003
+0.003
–0.003
–0.020
+0.018
–0.018
Legends and Notes
Typical Model Number:
Gauge
Reading
Same As
Pin Depth
207 +0.000
–0.003
Same As
Pin Depth
N/A
Same As
Pin Depth
207 +0.000
–0.003
Same As
Pin Depth
207 +0.000
–0.018
Same As
Pin Depth
The teflon washer is shown on a GPC-7 connector. A similar washer may be installed on any
WILTRON precision connectors.
Figure 4. Tuning Washer on GPC-7 Connector
SWR OMM 5
97SF50
NOTE
Connector Type Abbreviations:
N = Type N male
NF = Type N female
A = GPC-7
Page 6
d. Avoid Mechanical Shock. SWR Autotesters
and bridges are designed to withstand years of
normal bench handling. However, do not drop or
otherwise treat them roughly. They are laboratory-quality devices, and like other such devices,
they require careful handling.
7. DIRECTIVITY MEASUREMENTS.
Directivity measurements are frequency limited. For
frequencies 2 GHz and above an air line technique
is used to obtain a precise measurement; below 2
GHz where an air line is not effective, a go-no go test
must be used.
e. Keep SWR Autotester or Bridge Connectors
Clean. The precise geometry that makes the
SWR Autotester’s or bridge’s high performance
possible can be disturbed by dirt and other contaminants adhering to connector interfaces.
When not in use, keep the SWR Autotester or
bridge connectors covered. Refer to paragraph 8
for cleaning instructions.
6. PERFORMANCE VERIFICATION
Performance verification consists of measuring the
directivity of the SWR Autotester or bridge and
measuring connector pin depth.
Table 4. Recommended Test Equipment
Instrument Required Characteristics Recommended Model and Manfacturer
Scalar Network Analyzer System
Sweep Generator
Leveled Output: ±1.0 dB
Frequency Range: 2 – 18 GHz
Scalar Network Analyzer
Vertical Sensitivity: 0.5 dB/Div.
Variable Offset Control
Table 4 lists recommended test equipment for performing these measurements. Measurement procedures are given below.
Measuring the directivity of 97S50 and 97SF50 SWR
Autotesters at 2 GHz and above requires use of a
19SF50 or 19S50 Air Line. The WSMA connectors on
these components are designed to mate with SMA
connectors. When mating two WSMA connectors,
compensation washers are required. The only exceptions are the WSMA Open/Short and the sweep generator RF OUTPUT connector, which have been optimized for use with WSMA. An envelope containing
six or more of these washers is packaged with each
air line. Figure 9, beginning on page 12, provides a
procedure for installing these washers.
WILTRON 562 SNA and 68147B
Synthesized Sweep Generator, with
560-10BX Cable
OR
WILTRON 5447A Scalar
Measurement System
Air Line SWR: 1.002 (GPC-7 Connector)
SWR: 1.006 (Type N/NF
Connector)
SWR: 1.006 (WSMA Connector)
Te rmina tion 20 dB Offs et WILTRON 29 S eri es
Precision Termination
50 ±0.5 Ohm s
GPC-7 Test Port Connector
Type N Test Port Connector
WSMA Female Test Port Connector
WSMA Male Test Port Connector
75 ±0.5 Ohm s
Type N Test Port Connector
BNC Test Port Connector
WILTRON 18 Series
WILTRON 19 Series
WILTRON:
28A50-1
26N50
28S50
28SF50
WILTRON:
26N75
26B75
6 SWR OMM
Page 7
AIR LINE
OPEN/SHORT
34-SERIES
ADAPTE R
562 SCALAR NETWORK ANAL YZER
20 dB OFFSET
CONNECT D ASHED LINE CONNECTIONS
WHEN DIRECTED BY PROCEDURE
SWR AUTOTESTER OR
BRIDGE UNDER TEST
(IF TESTING BRIDGE, USE 560-7 SERIES
DETECTOR INSTEAD O F 10 BX CABLE
560-10BX CABLE
REFERENCE TERMI NATION
(<2 GH z MEASUREMENTS)
68147B SYNTHESIZED SWEEP GENERATOR
Figure 5. Test Equipment Setup for Directivity Measurement
a. Measuring Directivity At 2 GHz and Above.
1. Connect test setup as shown in Figure 5.
2. Press LINE key on signal source to OPERATE.
3. Press POWER key on network analyzer to ON.
4. Press SYSTEM key on signal source, then se-
lect the Reset softkey, from the displayed
menu.
5. Set signal source for frequency range of device-under-test (DUT) and for maximum possible power, as described below.
(a) Press CW/SWEEP SELECT key.
(b) Select the Analog softkey from the dis-
played menu.
(c) Select the Edit F1 softkey from the dis-
played menu.
(d) Using the Cursor Control Key or Rotary
Data Knob, edit the F1 parameter to
equal the low-end frequency of the SWR
Autotester or Bridge under test.
(e) Select the Edit F2 softkey and repeat
step (d) for the high-end frequency.
(f) Select the Edit L1 softkey, and repeat
step (d) to display the source’s maximum
power level value.
6. Press SYSTEM FUNCTION MENU key on net-
work analyzer.
7. Using MENU up-down keys: Highlight RE-
SET, then press SELECT key.
8. Press CHANNEL 2 key to OFF.
9. Press GRATICULE ON/OFF key to ON.
10. Press CHANNEL 1 MENU key.
11. Using MENU up-down keys: Highlight RE-
TURN LOSS, then press SELECT key.
12. Press CALIBRATI ON key.
SWR OMM 7
Page 8
BAD
Figure 6. Examples of Good and Bad Air Line Connections
13. Using MENU up-down keys: Highlight START
CAL then press SELECT key.
14. Connect SWR Autotester to INPUT A , if you
have not done so yet.
15. Connect beadless end of air line to test port on
SWR Autotester, paying careful attention to
making a good connection. The displays
shown in Figure 6 indicate good and bad connections.
16. Connect OPEN to air line and press SELECT
key.
17. Connect SHORT to air line and press SELECT
key.
18. Connect 20 dB Offset to air line and press
SELECT key.
GOOD
REFERENCE LINE POSITION
19. Press CHANNEL 1 MENU key.
Figure 7. Reference Line Position
20. Using MENU up-down keys: Highlight REF
LINE, then press SELECT key.
21. Using DA TA ENT RY knob, set reference line to
4th graticule line from top (Figure 7).
22. Press CHANNEL 1 AUTOSCALE key.
23. Press CHANNEL 1 OFFSET/RESOLUTION
key.
8 SWR OMM
Page 9
24. Using MENU up-down keys: Highlight
OFFSET dB, then press SELECT key.
25. Using DATA ENTRY/CURSOR knob, align the
Channel 1 signal with the reference line (Figure 8).
REFERENCE LINE
Figure 8. Signal Aligned With the Reference Line
26. Using MENU up-down keys: Highlight RESO-
LUTION dB/DIV , then press SELECT key.
27. Read OFFSET value from top of display.
This is the value of the 20 dB Offset.
28. Observing the displayed ripple pattern, select
the ripple with the greatest amplitude and
position its average point (see NOTE) on the
reference line.
NOTE
The average point is approximately
halfway between the peak and
trough values for ripples 3 dB or
less. For ripples greater than 3 dB,
refer to Table 6.
29. Measure the peak-to-peak value of the selected ripple.
30.
In the “REF ± X, Peak to Peak Ripple, dB”
column of Table 6, find the value nearest to
the peak-to-peak signal value measured in
step 29.
31. Read the coordinate value from the “X dB
Below Reference” column.
32. Add the dB value from step 30 to the value
read in step 31. The sum is the worst-case
directivity of the SWR Autotester or bridge. It
should equal or exceed the specification in
Table 1 or 2.
b. Directivity Measurements Below 2 GHz.
1. Set up equipment as shown in Figure 5.
2. Perform steps 2 thru 13 of subparagraph a.
3. Connect termination to test port of SWR
Autotester or bridge being measured*.
4. Press CHANNEL 1 MENU key.
5. Using MENU up-down keys: Highlight REF
LINE, then press SELECT key.
6. Using DA TA ENTR Y knob, set reference line to
midscale.
7. Press CHANNEL 1 OFFSET/RESOLUTION
key.
8. Using MENU up-down keys: Highlight OFF-
SET dB, then press SELECT key.
9. Using DATA ENTRY knob, set OFFSET dB for
the directivity value of the SWR Autotester or
bridge being measured.
10. Using MENU up-down keys: Highlight RESO-
LUTION dB/DIV , then press SELECT key.
11. Using DATA ENTRY knob, set RESOLUTION
dB/DIV for a convenient value.
12. Observe analyzer display. If measured directivity signal is below the reference line, then
the directivity is within the specified value.
* The return loss of the termin ation must be higher than the
directivity of the SWR Autoteste r or bridg e being measure d.
The WILTRON terminations re comm ended in Table 4 meet
this requi rem ent.
SWR OMM 9
Page 10
c. Pin Depth Measurements.
Gauging sets for measuring terminations are available from WILTRON. Table 5 provides a listing that
correlates each SWR Autotester and bridge type
with its appropriate gauging set. Instructions for
gauging air line connectors are provided with gauging set.
Table 5. Available Gauging Sets
Model Connector Type
60A50, 58A50,
87A50, 87A50-1
63A50, 59A50,
97A50, 97A50-1
GPC–7 01-161
Gauging Set
Model
8. MAINTENANCE
WILTRON recommends that no maintenance other
than cleaning be attempted by customer. The SWR
Autotester or bridge should be returned to WILTRON for repair and/or service when needed.
Clean connector interfaces with clean cotton swab
dampened with alcohol.
CAUTION
Excessive pressure when cleaning can
damage the center conductor support
bead in the SWR Autotester or Bridge.
Ensure that the cotton swab is small
enough to fit into the connector without applying pressure to the center
conductor. When cleaning, limit the
pressure so as to lightly contact the
connector. To obtain cotton swabs that
are smaller than the standard type
available in most retail outlets, try
contacting a medical-lab-type supply
center.
60N50, 62N75,
63N50, 97N50,
97N50-1
60NF50, 62NF75,
63NF50, 97NF50,
97NF50-1
97S50, 97S50-1 WSMA Male
97SF50, 97SF50-1 WSMA Female
N Male
N Female
CAUTION
If installed, do not disturb the teflon
washer on the center conductor (refer to
paragraph 5c).
01-163
01-162
10 SWR OMM
Page 11
Table 6. Microwave Measurement
Conversion tables for Return Loss, Reflection Coefficient, and SWR with tabular values for interaction
of a small phasor X with a large phasor (unity reference) expressed in dB related to reference.
Relative to Unity Reference
(1 + X)
X
(REF)
PHASOR
INTERACTION
TERM002.DRW
(1 - X)
SWR
17.3910
8.7242
5.8480
4.4194
3.5698
3.0095
2.6146
2.3229
2.0999
1.9250
1.7849
1.6709
1.5769
1.4985
1.4326
1.3767
1.3290
1.2880
1.2528
1.2222
1.1957
1.1726
1.1524
1.1347
1.1192
1.1055
1.0935
1.0829
1.0736
1.0653
1.0580
1.0515
1.0458
1.0407
1.0362
1.0322
1.0287
1.0255
1.0227
1.0202
1.0180
1.0160
1.0143
1.0127
1.0113
1.0101
1.0090
1.0080
1.0071
1.0063
1.0057
1.0050
1.0045
1.0040
1.0036
1.0032
1.0028
1.0025
1.0022
1.0020
Reflection
Coefficient
0.8913
0.7943
0.7079
0.6310
0.5623
0.5012
0.4467
0.3981
0.3548
0.3162
0.2818
0.2512
0.2239
0.1995
0.1778
0.1585
0.1413
0.1259
0.1122
0.1000
0.0891
0.0794
0.0708
0.0631
0.0562
0.0501
0.0447
0.0398
0.0355
0.0316
0.0282
0.0251
0.0224
0.0200
0.0178
0.0158
0.0141
0.0126
0.0112
0.0100
0.0089
0.0079
0.0071
0.0063
0.0056
0.0050
0.0045
0.0040
0.0035
0.0032
0.0028
0.0025
0.0022
0.0020
0.0018
0.0016
0.0014
0.0013
0.0011
0.0010
Return
Loss
(dB)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
X
dB Below
Reference
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
REF + X
dB
5.5350
5.0780
4.6495
4.2489
3.8755
3.5287
3.2075
2.9108
2.6376
2.3866
2.1567
1.9465
1.7547
1.5802
1.4216
1.2778
1.1476
1.0299
0.9237
0.8279
0.7416
0.6639
0.5941
0.5314
0.4752
0.4248
0.3796
0.3391
0.3028
0.2704
0.2414
0.2155
0.1923
0.1716
0.1531
0.1366
0.1218
0.1087
0.0969
0.0864
0.0771
0.0687
0.0613
0.0546
0.0487
0.0434
0.0387
0.0345
0.0308
0.0274
0.0244
0.0218
0.0194
0.0173
0.0154
0.0138
0.0123
0.0109
0.0097
0.0087
REF – X
dB
–19.2715
–13.7365
–10.6907
–8.6585
–7.1773
–6.0412
–5.1405
–4.4096
–3.8063
–3.3018
–2.8756
–2.5126
–2.2013
–1.9331
–1.7007
–1.4988
–1.3227
–1.1687
–1.0337
–0.9151
–0.8108
–0.7189
–0.6378
–0.5661
–0.5027
–0.4466
–0.3969
–0.3529
–0.3138
–0.2791
–0.2483
–0.2210
–0.1967
–0.1751
–0.1558
–0.1388
–0.1236
–0.1100
–0.0980
–0.0873
–0.0778
–0.0693
–0.0617
–0.0550
–0.0490
–0.0436
–0.0389
–0.0346
–0.0309
–0.0275
–0.0245
–0.0218
–0.0195
–0.0173
–0.0155
–0.0138
–0.0123
–0.0109
–0.0098
–0.0087
REF ± X
Peak to Peak
Ripple dB
24.8065
18.8145
15.3402
12.9073
11.0528
9.5699
8.3480
7.3204
6.4439
5.6884
5.0322
4.4590
3.9561
3.5133
3.1224
2.7766
2.4703
2.1986
1.9574
1.7430
1.5524
1.3828
1.2319
1.0975
0.9779
0.8714
0.7765
0.6919
0.6166
0.5495
0.4897
0.4365
0.3890
0.3467
0.3090
0.2753
0.2454
0.2187
0.1949
0.1737
0.1548
0.1380
0.1230
0.1096
0.0977
0.0871
0.0776
0.0692
0.0616
0.0549
0.0490
0.0436
0.0389
0.0347
0.0309
0.0275
0.0245
0.0219
0.0195
0.0174
SWR OMM 11
Page 12
Step1. Separate a single WSMA connector
compensation washer and trim
away the interconnecting tabs.
Step 2. Connect the 560-98SF50 SWR
Autotester input port to the signal
source RF output port, and loosely
tighten connector. Orient the
WSMA female connector (test port)
up.
Step 3. Insert the compensation washer
into the opening of the WSMA female connector, as shown.
Step 4. Connect beaded end of the air line
per application. Tilt the air line
horizontally. At unbeaded end, center the inner conductor with the center of the connector opening.
Figure 9. Example for Using Compensation Washer with WSMA Connectors (1 of 2)
12 SWR OMM
Page 13
Step 5. Loosen the SWR Autotester input
port connector and rotate unit horizontally, as shown at left. Align unbeaded end of Air Line with test
port connector and carefully mate
connectors. Tighten all connectors
carefully.
NOTE
For a 560-98S50 SWR Autotester (male WSMA
test port) in combination with a 19SF50 Air
Line, insert the compensation washer into the
female WSMA connector of the air line (beaded
end).
Figure 9. Example for Using Compensation Washer with WSMA Connectors (2 of 2)
SWR OMM 13
Page 14
WARRANTY
The WILTRON product(s) listed on the title page is (are) warranted against defects in
materials and workmanship for one year from the date of shipment.
WILTRON’s obligation covers repairing or replacing products which prove to be defective
during the warranty period. Buyers shall prepay transportation charges for equipment
returned to WILTRON for warranty repairs. Obligation is limited to the original purchaser. WILTRON is not liable for consequential damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to WILTRON connectors that have failed due to
normal wear. Also, the warranty does not apply to defects resulting from improper or
inadequate maintenance by the Buyer, unauthorized modification or misuse, or operation outside of the environmental specifications of the product. No other warranty is
expressed or implied, and the remedies provided herein are the Buyer’s sole and exclusive remedies.
TRADEMARK ACKNOWLEDGEMENTS
V Connector and K Connector are registered trademarks of WILTRON Company.
GPC-7 is a registered trademark of Amphenol Corporation.
NOTICE
WILTRON Company has prepared this manual for use by WILTRON Company personnel and customers as a guide for the proper installation, operation and maintenance of
WILTRON Company equipment and computer programs. The drawings, specifications,
and information contained herein are the property of WILTRON Company, and any
unauthorized use or disclosure of these drawings, specifications, and information is
prohibited; they shall not be reproduced, copied, or used in whole or in part as the basis
for manufacture or sale of the equipment or software programs without the prior written
consent of WILTRON Company.
SWR OMM 15
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