Wiltron Site Master S110 User manual

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Site Master 
S110, S111, S330, S331
Personal SWR/RL and
Fault Location Tester
User’s Guide
Hand-Held Tester For Antennas, Transmission
Lines And Other RF Components

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 war-
ranty 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 the
environmental specifications of the product. No other warranty is ex-
pressed or implied, and the remedies provided herein are the Buyer’s
sole and exclusive remedies.
TRADEMARK ACKNOWLEDGEMENTS
MS-DOS, Windows, and Windows for Workgroups are registered
trademarks of the Microsoft Corporation.
Site Master, Site Master 110, Site Master S110, Site Master S111, Site
Master 330, Site Master S330, and Site Master S331 are trademarks of
Wiltron Company.
NOTICE
WILTRON Company has prepared this manual for use by WILTRON
Company personnel and customers as a guide for the proper installa-
tion, operation and maintenance of WILTRON Company equipment
and computer programs. The drawings, specifications, and informa-
tion 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.

Table of Contents
General Information . . . . . . . . . 1-1
Introduction . . . . . . . . . . . . . . . . . 1-1
Description . . . . . . . . . . . . . . . . . . 1-1
Standard Accessories . . . . . . . . . . . . 1-2
Optional Accessories . . . . . . . . . . . . 1-3
Spares . . . . . . . . . . . . . . . . . . . . . 1-4
Performance Specifications . . . . . . . . . 1-4
Operation . . . . . . . . . . . . . . . 2-1
Introduction . . . . . . . . . . . . . . . . . 2-1
Control Descriptions . . . . . . . . . . . . 2-1
Test Panel . . . . . . . . . . . . . . . . . . . . . . . 2-1
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Soft Keys . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Remote Operation . . . . . . . . . . . . . . . . . . . 2-19
Operating Procedures . . . . . . . . . . . . 2-19
Making common function selections . . . . 2-20
Applying Power . . . . . . . . . . . . . . . . . . . . 2-20
Setting Options . . . . . . . . . . . . . . . . . . . . 2-20
Setting Scale/Limits . . . . . . . . . . . . . . . . . . 2-21
Determining Remaining Battery Life . . . . . . . . 2-22
Making frequency-domain measurements 2-23
Return Loss or SWR Measurement . . . . 2-23
Selecting a Frequency Range . . . . . . . . . . . . . 2-23
Performing a Calibration . . . . . . . . . . . . . . . 2-23
Making a Measurement . . . . . . . . . . . . . . . . 2-25
Scaling the Display . . . . . . . . . . . . . . . . . . 2-26
Adjusting Markers . . . . . . . . . . . . . . . . . . 2-26
June 1996 10580-00005
Copyright 1995, Wiltron Co. Revision: E

Adjusting a Limit . . . . . . . . . . . . . . . . . . . 2-27
Saving a Setup . . . . . . . . . . . . . . . . . . . . . 2-27
Recalling a Setup . . . . . . . . . . . . . . . . . . . 2-27
Storing a Trace . . . . . . . . . . . . . . . . . . . . 2-28
Recalling a Trace . . . . . . . . . . . . . . . . . . . 2-28
Cable Loss Measurement . . . . . . . . . . 2-29
Selecting a Frequency Range . . . . . . . . . . . . . 2-29
Performing a Calibration . . . . . . . . . . . . . . . 2-29
Making a Measurement . . . . . . . . . . . . . . . . 2-31
Scaling the Display . . . . . . . . . . . . . . . . . . 2-31
Adjusting Markers . . . . . . . . . . . . . . . . . . 2-31
Adjusting a Limit . . . . . . . . . . . . . . . . . . . 2-32
Saving a Setup . . . . . . . . . . . . . . . . . . . . . 2-32
Recalling a Setup . . . . . . . . . . . . . . . . . . . 2-33
Storing a Trace . . . . . . . . . . . . . . . . . . . . 2-33
Recalling a Trace . . . . . . . . . . . . . . . . . . . 2-33
Making distance-domain measurements . 2-34
Selecting a Frequency Range . . . . . . . . . . . . . 2-34
Performing a Calibration . . . . . . . . . . . . . . . 2-36
Performing a DTF Measurement . . . . . . . . . . 2-37
Printing . . . . . . . . . . . . . . . . . . . . 2-39
Printer Switch Settings . . . . . . . . . . . . . . . . 2-39
Printing a Screen . . . . . . . . . . . . . . . . . . . 2-40
Symbols . . . . . . . . . . . . . . . . . . . . 2-41
Self Test . . . . . . . . . . . . . . . . . . . 2-41
Error Codes . . . . . . . . . . . . . . . . . 2-41
Self Test Errors . . . . . . . . . . . . . . . . . . . . 2-41
Range Errors . . . . . . . . . . . . . . . . . . . . . 2-41
Replacing the Battery . . . . . . . . . . . . 2-41
Using the Soft Carrying Case . . . . . . . . 2-46
ii

Software Tools Program . . . . . . . 3-1
Description . . . . . . . . . . . . . . . . . . 3-1
Requirements . . . . . . . . . . . . . . . . 3-1
Communication Port Setting . . . . . . . . 3-2
Changing COM Port Settings–Windows 3.1 . . . . 3-2
Changing COM Port Settings–Windows 95 . . . . . 3-4
Software Installation . . . . . . . . . . . . 3-6
Plot Capture . . . . . . . . . . . . . . . . . 3-7
Multiple trace capture (preferred method) . . . . . 3-7
Single trace capture . . . . . . . . . . . . . . . . . . 3-8
Program Operation . . . . . . . . . . . . . 3-10
Fault Location Software . . . . . . . . . . 3-11
Smith Chart Software . . . . . . . . . . . . 3-11
Saving a Plot as a Windows Metafile . . . 3-12
Saving Data to a Spreadsheet . . . . . . . . 3-12
“Drag-n-Drop” . . . . . . . . . . . . . . . . 3-13
iii

Version Number Supported Features
1.0, 1.1 Initial Release
2.0 Adds:
Remote Operation
Printer Support
Internal Cable Table
Marker Peak Search
CW Mode
3.0 Adds:
DTF Windowing
Calibration Storage
Cable Loss Measurement
Site Master Firmware Version Table
iv

How to Use this Manual
The operation of the Site Master  is straightforward and intuitive .
However, you may find it helpful to review the operation of the keys
and menus prior to first-time use.
Descriptions of the keys and menus, along with measurement proce-
dures, are provided in Chapter 2.
First-time users and maintenance supervisors will benefit from perus-
ing the material in Chapter 1. This chapter describes the instrument and
provides listings of options and performance specifications.
Please Recycle
This product contains a recharageable
battery. This battery may be recyclable.
It may be illegal to dispose of this bat-
tery in municipal waste sites. Check
with your local solid-waste disposal
authority.
v

User's Guide
LCD
Contrast
Site Master S331
Serial
Interface
External
12V
Battery
Charging
12-15V DC
(45C mA)
MARKER
SAVE
DISPLAY RECALL
DISPLAY
LIMIT
SAVE
SETUP RECALL
SETUP
CAL
ENTER
ON
OFF
RUN
HOLD
ESCAPE
CLEAR
AUTO
SCALE
START
CAL
12
4
3
56
8
90
7
Test
Port
Figure 1-1.
Site Master System
1 - 0

Chapter 1
General Information
Introduction
This chapter provides description, specification, and optional accesso-
ries for the Site Master
Series instruments. This series has four mem-
bers, as shown below. Throughout this manual, the termSite Master
will refer to the series; whereas, the terms
Site Master S110, S130,
S111, and S331 will refer to the applicable individual models.
Model Frequency Range
S110 600 to 1200 MHz
S111 300 to 1200 MHz
S330 700 to 3300 MHz
S331 25 to 3300 MHz
Description
The Site Master (Figure 1-1) is a hand held SWR/RL(standing wave
ratio/return loss) and Distance-To-Fault measurement instrument that
includes a built-in synthesized signal source. It uses a keypad to enter
data and a liquid crystal display (LCD) to provide a graphical indica-
tion of SWR or RL over the selected frequency range. The Site Master
S111 and S331 have a built-in distance-to-fault capability. TheSite
Master S110 and S330, as well as models S111 and S331, allow meas-
urement data to be converted to Fault Location via the companion Soft-
1
1 - 1

ware Tools program. The Site Master is capable of up to two hours of
continuous operation from a fully charged internal battery. It can also
be operated from a 12.5 dc source (which will also simultaneously
charge the battery). Built-in energy conservation features can be used
to extend battery life over an eight-hour work day.
The Site Master
is designed for measuring SWR, return loss, or cable
insertion loss and locating faulty RF components in antenna systems.
The displayed trace can be scaled and/or enhanced with settable fre-
quency markers and/or a limit line. A menu option provides for an audi-
ble “beep” when the limit value is exceeded. To permit use in low-light
environments, the LCD can be back lit using a front panel key
.
Standard Accessories
A PC based software program (called Software Tools) provides an on-
line database record for storing measurement data. Site Master Soft-
ware Tools can also convert the Site Master display to a Microsoft
Windows 3.x graphic. Measurements stored in the Site Master internal
memory are down-loaded to the PC using the included serial cable.
This null-modem serial cable connects between the Serial Interface con-
nector on the Site Master and a Com Port on a DOS/Windows-based
PC. Once stored, the graphic trace can then be displayed, scaled, and/or
enhanced with markers and limit lines. Historical graphs can be over-
laid with current data by using the PC’s mouse in “drag-n-drop” fash-
ion. The underlying data can be extracted and used in spreadsheets or
for other analytical tasks.
The Software Tools program also performs DTF (Distance To Fault) or
Fault Location by clicking on the appropriate icon.
Chapter 1 General Information
1 - 2

The following items are supplied with the basic hardware.
•Soft carrying case
•Standard Calibration Components
•AC-DC adapter
•Automotive Cigarette Lighter 12 Volt DC Adapter
•3 1/2-inch floppy disk containing the Software Tools program.
This program contains Fault Location (DTF) and Smith Chart
functions.
•Serial Interface Cable, Part Number 800-441
•One year Warranty (includes battery, firmware, and software)
•User’s Guide
•Programming Manual
Optional Accessories
•Wiltron precision N type Short/Open, Part No. 22N50
•Site Master precision N Load, 42 dB Part No. SM/PL
•Test Port Extension Cable, 1.5 meter, Part No. TP/ECN 1.5
•Test Port Extension Cable, 3.0 meter, Part No. TP/ECN 3.0
•Test Port Extension Cable, 5.0 meter, Part No. TP/ECN 5.0
•Test Port Extension Cable, 1.5 meter, Part No. TP/EC 1.5
•Test Port Extension Cable, 3.0 meter, Part No. TP/EC 3.0
•Test Port Extension Cable, 5.0 meter, Part No. TP/EC 5.0
Chapter 1 General Information
1 - 3

•Transit Case for Site Master, Part No. 760-194A
•HP Deskjet 340 Printer, Part No. 2000-766
•Serial-to-Parallel Converter Cable (use with the
HP 340 Printer), Part No. 2000-753
•Seiko DPU-411 Thermal Printer, Part No. 2000-754 or
2000-761
•Serial Interface Cable (use with the DPU-411
Printer), Part No. 2000-756
•Thermal Paper (use with the DPU-411 Printer),
Part No. 2000-755
Spares
•N type Standard Short, Part No. SM/STS
•N type Standard Load, 35 dB, Part No. SM/STL
•Soft Carrying Case, Part No. D41955
•AC/DC Adapter, Part No. 40-97
•Serial Interface Cable, Part Number 800-441
Performance Specifications
Performance specifications are provided in Table 1-1.
Chapter 1 General Information
1 - 4

Specifications are valid when the unit is calibrated at ambient
temperature after a 5 minute warmup.
Description Value
Frequency Range
Site Master S110
Site Master S111
Site Master S330
Site Master S331
600 to 1200 MHz
300 to 1200 MHz
700 to 3300 MHz
25 to 3300 MHz
Frequency Accuracy (CW Mode) 75 parts per million
Frequency Resolution 100 kHz
Measurement Range VSWR 1.00 to 65.00
Return Loss Resolution 0.1 dB
*Fault Location Resolution,
nominal 0.8% of maximum range
Dynamic Range 54 dB
Directivity (corrected) 35 dB (Standard Calibration)
42 dB (Precision Calibration)
Test Port, Type N 50 Ohms
Max. Power output, nominal
Site Master S110, S111
Site Master S330, S331 +9 dBm –7 dBm (25 to 800 MHz)
–3 dBm (800 to 1600 MHz)
–14 dBm (1600 to 3300 MHz)
**Immunity to Interfering signals
up to the level of +10 dBm (Site Master S110, S111) –15 dBm (Site Master S330, S331)
Maximum Input (Damage Level) +22 dBm
Table 1-1. Performance Specifications (1 of 2)
Chapter 1 General Information
1 - 5

Measurement Accuracy
Measurement accuracy depends on calibration components.
Standard calibration components have a directivity of 35 dB.
Precision calibration components have a directivity of 42 dB.
Temperature
Storage
Operation –20°C to 75°C
0°C to 50°C
Maximum (burnout) level of
incoming signal at port +22 dBm
Weight 2.2 pounds
Size 8x7x21⁄4inches
* Fault location is accomplished by inverse Fourier Transformation of data taken with
the Site Master. Resolution and maximum range depend on the number of frequency
data points, frequency sweep range and relative propagation velocity of the cable being
tested.
Maximum Range=(1.5 ×108)(129)(Vf)
(F2−F1)
Where: F1 is start frequency
F2 is stop frequency
Vfis relative propagation velocity
** Immunity measurement is made in CW mode with incoming intefering signal exactly
at the same frequency (worst case situation). Typical immunity is better when swept
frequency is used.
Table 1-1. Performance Specifications (2 of 2)
Chapter 1 General Information
1 - 6

This page is intentionally blank
Chapter 1 General Information
1 - 7

LCD
Contrast
Site Master S331
Serial
Interface
External
12V
Battery
Charging
12-15V DC
(45C mA)
MARKER
SAVE
DISPLAY RECALL
DISPLAY
LIMIT
SAVE
SETUP RECALL
SETUP
CAL
ENTER
ON
OFF
PRINT
RUN
HOLD
ESCAPE
CLEAR
AUTO
SCALE
START
CAL
12
4
3
56
8
90
7
Test
Port
Soft Keys LIMIT
SAVE DISPLAY
ON/OFF
PRINT
RUN
HOLD
RECALL DISPLAY
ENTER
MAKER
RECALL
SETUP
Up/Down Arrow
CAL
ESCAPE
CLEAR
AUTO SCALE
Display
Contrast
Test Port
12.5-15V DC
(600 mA)
External
Power
Serial
Interface
Battery
Charging
Back Lighting
START
CAL
SAVE
SETUP
Figure 2-1. Site Master Controls and Connectors
2 - 0

Chapter 2
Operation
Introduction
This chapter provides a description of each control and describes how
to calibrate the Site Master and make a measurement.
Control Descriptions
Control descriptions are given below; the test panel controls and con-
nectors are listed first. The keypad controls follow and are listed alpha-
betically. Then, the soft keys and menu structure are described using
Figure 2-3 (page 2-7).
Test Panel
12.5-15VDC
(600 mA) Provides input for battery charging the unit. Input is 12.5 to 15 Vdc @ 600 mA.
Battery
Charging Indicator light to show that the battery is being charged.
External
Power Indicator light to show that the Site Master
is being
powered by the external charging unit.
Display
Contrast Thumbwheel control adjusts contrast level for the liquid crystal display.
2
2 - 1