SteppIR SY3 User manual
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SY3 System
Users Manual
REV 1.1 12/27/2020
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Please review the following safety precautions carefully before putting the system into operation, so as to
avoid any personal injury or damage to the instrument and any product connected to it. To prevent potential
hazards, please use the instrument only as specified in this manual.
Use the Proper Power Cord
Use only the power cord designed for the instrument and authorized by your local country.
Ground the Instrument
The instrument is grounded through the Protective Earth lead of the power cord. To avoid electric shock, it is
essential to connect the earth terminal of the power cord to the Protective Earth terminal before connecting
any inputs or outputs.
Connect the Antenna Correctly
When connecting the Antenna to the Analytics Tower, ensure that all connections are fastened securely.
Utilize both screws on the DB-25 connecter to prevent accidental disconnection of the cable during use.
Observe All Terminal Ratings
To avoid fire or shock hazard, observe all ratings and markers on the system and check your manual for more
information about ratings before connecting the instrument.
Do Not Operate Without Covers
Do not operate the system with covers or panels removed.
Do Not Insert Anything into Vent Holes
Do not insert anything into the vent holes on the system to avoid damaging components.
Avoid Circuit or Wire Exposure
Do not touch exposed junctions and components when the unit is powered.
Keep Well Ventilated
Inadequate ventilation may cause an increase of temperature or damage to the system. Please keep the sys-
tem well ventilated and inspect the intake and vent holes regularly
Do Not Operate with Suspected Failures
If you suspect damage to the system has occurred, have it inspected by qualified service personnel before
further operation. Any maintenance, adjustment, or replacement, especially to circuits or accessories, must
be performed by SteppIR authorized personnel.
Keep Product Surfaces Clean and Dry
To avoid the influence of dust and/or moisture in the air, please keep the surface of the device clean and dry.
Electrostatic Prevention
Operate the instrument in an electrostatic discharge protective environment to avoid damage induced by
static discharges. Always ground both the internal and external conductors of cables to release static before
making connections.
GENERAL SAFETY SUMMARY
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Operate Only Within an EMC Chamber
Under normal operations, this system emits high levels of RF radiation. The system is intended to be used in
an EMC chamber only to prevent personal injury or damage to instruments.
Maintain a Proper Distance Between Antenna Elements and Conductive Surfaces
High voltages on the elements can occur when operating the antenna with an amplifier. All conductive
surfaces, such as the walls, ceiling, or floor of the EMC chamber, should be kept at least 15” (38 cm) from the
antenna elements to avoid arcing.
Observe Antenna Power Ratings
The SY3 antenna is rated to 2500 Watts at 2.5:1 VSWR. Operating at higher wattage or higher VSWR values
can result in damage to the system.
Burn Prevention
The SY3 Antenna enclosure underside surface may be hot during and immediately after transmitting. Use
caution when handling the device to avoid burns.
Trip Hazard
The system components are connected via long lengths of cable. Use caution when moving between
components to avoid tripping and causing personal injury or damage to the equipment.
Handling Safety
Please handle with care during transportation to avoid tipping or dropping the system components to avoid
personal injury or damage to the equipment.
This product is intended to be used and operated exclusively within an EMC chamber by
trained professionals. If the product is used in a manner not specified by the manufacturer
the protection may be impaired.
GENERAL SAFETY SUMMARY
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SY3 System Assembly
SY3 Stand 3
SY3 Antenna 5
Receive Antenna and Stand 9
SY3 System User Guide
Theory of Operation 11
Setup For Tuning 12
Setup For Testing 16
TABLE OF CONTENTS
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Section 1:
The SY3 Stand allows for quick levelling and adjustments of the SY3 Antenna. It uses a PanaVise head to tilt
the SY3 Antenna between horizontal and vertical polarizations, as well as four levelling feet for fine tuned
control.
Figure 1 demonstrates how the four legs are inserted into the base of the antenna
SY3 SYSTEM ASSEMBLY: SY3 STAND
Figure 1
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Section 2:
Using a 3/16” hex key, secure the four legs by tightening the set screws as shown in Figure 2.
SY3 SYSTEM ASSEMBLY: SY3 STAND
Figure 2
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Section 1:
The SY3 Antenna boom is attached to the PanaVise mount using four Phillips head screws. These screws
are fastened into the SY3 Antenna boom during shipping.
Remove the four mounting screws from the bottom of the antenna boom, as shown in Figure 3.
Place the antenna boom on top of the PanaVise Mount, and secure it in place using the four mounting
screws, as shown in Figure 4.
SY3 SYSTEM ASSEMBLY: SY3 ANTENNA
Figure 3
4 x Mounting Screws
Figure 4
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Section 2:
Remove the two black plastic thumbscrews on the center element, and insert a straight element fiberglass
support into each side of the center element, as shown in Figure 5.
Make sure each fiberglass support is fully seated within the element
Reinstall each plastic thumbscrew, fastening them against the fiberglass support tube .
Do not overtighten! Doing so may crush or otherwise damage the fiberglass support tube
SY3 SYSTEM ASSEMBLY: SY3 ANTENNA
Figure 5
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Section 3:
Remove the two black plastic thumbscrews on the front and rear element, and insert a folded element fiber-
glass support into each side of the elements, as shown in Figure 6. The folded element fiberglass supports
are not symmetrical, please refer to Figure 7 for the correct orientation.
Make sure each fiberglass support is fully seated within the element
Reinstall each plastic thumbscrew, fastening them against the fiberglass support tube.
Do not overtighten! Doing so may crush or otherwise damage the fiberglass support tube
SY3 SYSTEM ASSEMBLY: SY3 ANTENNA
Figure 6
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SY3 SYSTEM ASSEMBLY: SY3 ANTENNA
Figure 7
Folded Element Short SideFolded Element Long Side
Table of contents
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