Tektronix NetTek YBGPS1 Setup User manual
Important Safety Information
Description
Connecting the YBGPS1
Review the following safety precautions to avoid
injury and prevent damage to this product or any
products connected to it.
WARNING. To avoid injury, do not
connect this product to any source that
maybesubjecttotheeffectsof
lightning.
CAUTION. Do not apply power to the YBGPS1
antenna port. Applying power to the YBGPS1
antenna port can result in damage to the
YBGPS1 and to the NetTek Analyzer Platform.
Service. Only qualified personnel should perform
service procedures.
Power. Use only the power cords, desk top power
supplies, batteries, or in-vehicle Power Adapters
specified for the Y350C or Y400 NetTek Analyzer
Platform, and certified for the country of use. Observe
all ratings marked on these parts.
Intended Use. The YBGPS1 GPS Timing Reference
is intended for use only with the Y350C or Y400
NetTek Analyzer Platform and NetTek YBT250 Field
Transmitter & Interference Tester application module.
Important safety information is contained in the user
manuals for the analyzer platforms and the application modules.
Requirements
H A Y350C or Y350M NetTek Analyzer Platform
with software version 1.12 or greater, or a Y400
NetTek Analyzer Platform with software version
2.204 or greater
The YBGPS1 GPS Timing Reference unit provides
precise timing for cdmaOne and cdma2000 over the
air (OTA) measurements, as well as GPS location
information.
The YBGPS1 Timing Reference also improves the
accuracy of YBT250 frequency measurements.
YBGPS1 Contents
YBGPS1 GPS
Timing Reference
YBGPS1 GPS antenna
(Tektronix part number
119-7114-00)
YBGPS1 interconnect cable
(Tektronix part number
174-5192-00)
GPS
antenna
SMA to BNC
adapter
(if required)
Optional on-site
GPS antenna
YBGPS1
interconnect
cable
YBT250
Optional USB to PS/2
adapter for Y350
(Tektronix part number
103-0454-00)
Y350/Y400
I/O Ports
H A NetTek YBT250 Field Transmitter &
Interference Tester application module with software version 1.430 or greater
Current software is available to download from the
Tektronix Web site (www.tektronix.com)
Copyright E Tektronix, Inc. All rights reserved
SMA to BNC adapter
(Tektronix part number
174-5193-00)
YBGPS1 GPS Timing Reference
PS2RS-232
USB
(Y400 only)
Storing the YBGPS1
Store the YBGPS1 in the rear tilt stand or the module
storage spacer of the NetTek Analyzer Platform.
Enabling the YBGPS1 with the YBT250
1. Open the YBT250 application.
2. Tap the GPS button (in upper right screen
area).
3. Select Te k G PS T i mi ng Ref from the
GPS Receiver: drop-down list.
4. Wait between two and four minutes for the
YBGPS1 to acquire and lock onto the satellite
signals. If the YBGPS1 does not lock within that
time, reposition the GPS antenna to obtain a less
obstructed view of the sky. Use the GPS Satellite
Signal Strength fieldontheGPS tabtoevaluate
satellite signal strength while positioning the GPS
antenna.
5. Tap OK to close the dialog box.
Usage Notes
H The YBGPS1 has two start-up modes; cold start
and warm start.
H A cold start typically requires between two
and four minutes, and occurs when you use
the YBGPS1 for the first time, when the NetTek Analyzer Platform real-time clock is different from the GPS satellite clock by more
than 20 seconds, the last valid position provided by the YBGPS1 is greater than 100 km
from the current position, or the satellite almanac data is older than 60 days.
H A warm start typically requires between 45
seconds and two minutes, and uses GPS information saved when the instrument was last
run to quickly lock onto satellites.
H If no satellite signals are acquired within four
minutes (warm or cold start), try repositioning the
GPS antenna for an unobstructed view of the sky.
Use the GPS tab fields to evaluate satellite signal
lock and strength.
H GPS satellite signals operate at 1.57542 GHz and
approximately --135 dBm. Because of the high
frequency and low signal levels, best operation is
achieved when the antenna has an unobstructed
view of the sky.
H GPS signals cannot be received inside buildings
or enclosed structures. If you are using the
YBGPS1 inside a building, place the GPS antenna
as near as possible to a window.
H GPS measurements rely on the time delay be-
tween when each satellite sends out its signal and
when each signal is received by the GPS receiver.
GPS signals that need to bounce off of buildings
to reach the antenna result in degraded accuracy
and repeatability of position and timing information.
H The YBGPS1 antenna port provides +5 VDC
(center positive), from 5 mA to 80 mA, for active
GPS antennas. The YBGPS1 detects shorted and
open GPS antenna lines.
H Do not apply power to the YBGPS1 antenna port.
Online Help
For help on setting up the YBT250 to use the
YBGPS1 Timing Reference:
1. Select Start > Help > YBT250 to open the
YBT250 online help file.
2. Select the Index link.
3. Scroll to and select GPS Overview from the
index link list.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive or P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, and technical support:
H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find con-
tacts in your area.
EMC Compliance
EC Declaration of Conformity -- EMC
Meets intent of Directive 89/336/EEC for Electromagnetic
Compatibility. Compliance was demonstrated to the following
specifications as listed in the Official Journal of the European
Union:
EN 61326 Annex D, EMC requirements for Class A
electrical equipment for measurement,
control, and laboratory use.
IEC 61000-4-2 Electrostatic discharge immunity
IEC 61000-4-3 RF electromagnetic field immunity
IEC 61000-4-4 Electrical fast transient/burst immunity
IEC 61000-4-5 Power line surge immunity
IEC 61000-4-6 Conducted RF immunity
IEC 61000-4-11 Voltage dips and interruptions immunity
EN 61000-3-2 AC power line harmonic emissions
EN 61000-3-3 Voltage changes, fluctuations, and flicker
Australia/New Zealand Declaration of Conformity -- EMC
Complies with EMC provision of Radiocommunications Act per
the following standard(s):
AS/NZS 2064.1/2 Industrial, Scientific, and Medical
1
EMC compliance was demonstrated using high-quality
shielded interface cables.
2
Emissions that exceed the limits of this standard may occur
when the instrument is connected to a test object.
3
Minimum Immunity test requirement.
1, 2
Equipment: 1992
Warranty Information
For warranty information, go to www.tektronix.com, click
Support, select Look Up Tektronix Warranty, and enter
YBGPS1 in the search field.
1, 2, 3
NetTekr YBGPS1
GPS Timing Reference
Setup Instructions
*P071170000*
071-1700-00
www.tektronix.com
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