Elliott PowerWave 2.4GHz Radio User manual

File: R28747
Page 1 of 14
Electromagnetic Emissions Test Report
and
Application for Grant of Equipment Authorization
pursuant to
FCC Part 15, Subpart C Specifications for an
Intentional Radiator on the
ShareWave, Inc.
Model: PowerWave 2.4GHz Radio
FCC ID: N9PSW1-2450
GRANTEE: ShareWave, Inc.
5175 Hillsdale Circle
El Dorado Hills, CA 95762
TEST SITE: Elliott Laboratories, Inc.
684 W. Maude Avenue
Sunnyvale, CA 94086
REPORT DATE: October 20, 1998
FINAL TEST DATE: September 11, 1998
AUTHORIZED SIGNATORY: ______________________________
Mark Briggs
Manager, EMC Consulting Services
This report shall not be reproduced, except in its entirety, without the written approval of Elliott Laboratories, Inc.

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 2 of 14 pages
TABLE OF CONTENTS
COVER PAGE.......................................................................................................................1
TABLE OF CONTENTS............................................................................2
SCOPE ................................................................................................3
OBJECTIVE ..........................................................................................3
STATEMENT OF COMPLIANCE ................................................................3
EMISSION TEST RESULTS......................................................................4
LIMITS OF CONDUCTED INTERFERENCE VOLTAGE...........................4
LIMITS OF ANTENNA CONDUCTED POWER......................................4
LIMITS OF RADIATED INTERFERENCE FIELD STRENGTH...................4
EQUIPMENT UNDER TEST (EUT) DETAILS.................................................6
GENERAL...................................................................................6
INPUT POWER.............................................................................6
PRINTED WIRING BOARDS............................................................6
ENCLOSURE...............................................................................6
SUPPORT EQUIPMENT..................................................................6
EXTERNAL I/O CABLING...............................................................7
TEST SOFTWARE.........................................................................7
TEST SITE............................................................................................8
GENERAL INFORMATION..............................................................8
CONDUCTED EMISSIONS CONSIDERATIONS....................................8
RADIATED EMISSIONS CONSIDERATIONS .......................................8
MEASUREMENT INSTRUMENTATION ......................................................9
INSTRUMENT CONTROL COMPUTER ..............................................9
LINE IMPEDANCE STABILIZATION NETWORK (LISN) ........................9
POWER METER...........................................................................10
FILTERS/ATTENUATORS..............................................................10
ANTENNAS................................................................................10
ANTENNA MAST AND EQUIPMENT TURNTABLE..............................10
INSTRUMENT CALIBRATION........................................................10
TEST PROCEDURES..............................................................................11
EUT AND CABLE PLACEMENT ......................................................11
CONDUCTED EMISSIONS.............................................................11
RADIATED EMISSIONS.................................................................11
CONDUCTED EMISSIONS FROM ANTENNA PORT.............................11
SPECIFICATION LIMITS AND SAMPLE CALCULATIONS..............................12
CONDUCTED EMISSIONS SPECIFICATION LIMITS, SECTION 15.207 ....12
RADIATED EMISSIONS SPECIFICATION LIMITS, SECTION 15.209........12
SAMPLE CALCULATIONS - CONDUCTED EMISSIONS........................13
SAMPLE CALCULATIONS - RADIATED EMISSIONS ...........................14
EXHIBIT 1: Test Equipment Calibration Data
EXHIBIT 2: Test Data Log Sheets
EXHIBIT 3: Radiated Emissions Test Configuration Photographs
EXHIBIT 4: Proposed FCC ID Label & Label Location
EXHIBIT 5: Detailed Photographs of ShareWave Model PowerWave 2.4GHz Radio ....
Construction
EXHIBIT 6: Operator's Manual for ShareWave Model PowerWave 2.4GHz Radio
EXHIBIT 7: ShareWave Model PowerWave 2.4GHz Radio SAR Summary
EXHIBIT 8: Block Diagram of ShareWave Model PowerWave 2.4GHz Radio
EXHIBIT 9: Schematic Diagrams for ShareWave Model PowerWave 2.4GHz Radio
EXHIBIT 10: Theory of Operation for ShareWave Model PowerWave 2.4GHz Radio

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 3 of 14 pages
SCOPE
An electromagnetic emissions test has been performed on the ShareWave spread spectrum
transceiver model PowerWave 2.4GHz Radio pursuant to Subpart C of Part 15 of FCC
Rules for intentional radiators. Conducted and radiated emissions data has been collected,
reduced, and analyzed within this report in accordance with measurement guidelines set
forth in ANSI C63.4-1992.
The intentional radiator above has been tested in a simulated typical installation to
demonstrate compliance with the relevant FCC performance and procedural standards.
Final system data was gathered in a mode that tended to maximize emissions by varying
orientation of EUT, orientation of power and I/O cabling, antenna search height, and
antenna polarization.
Every practical effort was made to perform an impartial test using appropriate test
equipment of known calibration. All pertinent factors have been applied to reach the
determination of compliance.
The test results recorded herein are based on a single type test of the ShareWave model
PowerWave 2.4GHz Radio and therefore apply only to the tested sample. The sample was
selected and prepared by Mike Perkins of ShareWave, Inc..
OBJECTIVE
The primary objective of the manufacturer is compliance with Subpart C of Part 15 of FCC
Rules for the radiated and conducted emissions of intentional radiators. Certification of
these devices is required as a prerequisite to marketing as defined in Part 2 the FCC Rules.
Certification is a procedure where the manufacturer or a contracted laboratory makes
measurements and submits the test data and technical information to the FCC. The FCC
issues a grant of equipment authorization upon successful completion of their review of the
submitted documents. Once the equipment authorization has been obtained, the label
indicating compliance must be attached to all identical units which are subsequently
manufactured.
STATEMENT OF COMPLIANCE
The tested sample of ShareWave model PowerWave 2.4GHz Radio complied with the
requirements of Subpart C of Part 15 of the FCC Rules for low power intentional radiators.
Maintenance of FCC compliance is the responsibility of the manufacturer. Any
modification of the product which may result in increased emissions should be checked to
ensure compliance has been maintained (i.e., printed circuit board layout changes, different
line filter, different power supply, harnessing or I/O cable changes, etc.).

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 4 of 14 pages
EMISSION TEST RESULTS
The following emissions tests were performed on the ShareWave model PowerWave
2.4GHz Radio. The actual test results are contained in an exhibit of this report.
LIMITS OF CONDUCTED INTERFERENCE VOLTAGE
No testing was performed in accordance with FCC Part 15 Section 15.207 as the unit was
powered from a battery cell during testing.
LIMITS OF ANTENNA CONDUCTED POWER
The EUT tested complied with the limits detailed in FCC Rules Part 15 Section 15.247 (d)
The highest out-of-band (Un-restricted) emission recorded in any 100 kHz band was more
than 20 dB below the hihgest in-band level with the device operating on center, top or
bottom channel.
The actual test data and any correction factors are contained an exhibit of this report.
LIMITS OF RADIATED INTERFERENCE FIELD STRENGTH
The EUT tested complied with the limits detailed in FCC Rules Part 15 Section 15.209 in
the case of emissions falling within the frequency bands specified in Section 15.205.
The following measurement was extracted from the data recorded during the radiated
electric field emissions scan and represents the highest amplitude emission relative to the
specification limit. The actual test data and any correction factors are contained in an
exhibit of this report.
1-24 GHz High Channel
Frequency Level Pol FCC 15.209 FCC 15.209 Detector Azimuth Height Comments
MHz dBuV/m v/h Limit Margin degrees meters
7363.750 51.7 h 54.0 -2.3 Pk 180 1.0 Peak Reading,
Average Limit
1-24 GHz Central Channel
Frequency Level Pol FCC 15.209 FCC 15.209 Detector Azimuth Height Comments
MHz dBuV/m v/h Limit Margin degrees meters
7326.700 51.2 v 54.0 -2.8 Pk 0 1.0 Peak Reading,
Average Limit
1-24 GHz Low Channel
Frequency Level Pol FCC 15.209 FCC 15.209 Detector Azimuth Height Comments
MHz dBuV/m v/h Limit Margin degrees meters
7664.200 51.7 h 54.0 -1.9 Pk 180 1.0 Peak Reading,
Average Limit

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 5 of 14 pages
LIMITS OF POWER AND BANDWIDTH
The EUT tested complied with the limits detailed in FCC Rules Part 15 Section 15.247(a)
(2). The minimum 6 dB bandwidth was 18.23 MHz on the Low Channel.
The EUT tested complied with the limits detailed in FCC Rules Part 15 Section 15.247(b).
The maximum power output was 19.4 dBm on the high channel.
The EUT tested complied with the limits detailed in FCC Rules Part 15 Section 15.247(d).
The highest output power desnity in a 3 KHz band averaged over a 1 second period was
1.2dBm on the low channel.
The actual test data and any correction factors are contained in an exhibit of this report.
PROCESSING GAIN
The Processing Gain was measured by the manufacturer to be 13.075 dB, meeting FCC
Rules Part 15 Section 15.247(e).
The actual test data and any correction factors are contained in an exhibit of this report.
SPECIFIC ABSORPTION RATE (SAR) MEASUREMENTS
A test report from APREL Laboratories, 51 Spectrum Way, Nepean, ON K2R 1E6
detailing the specific absorption rate measurements made on the ShareWave Power Wave
2.4 GHz Radio has been prepared. The measurements made showed that the product met
the requirements for an uncontrolled RF Exposure environment as set forth in FCC 96-
326, "Guidelines For Evaluating The Environmental Effects Of Radio Frequency
Radiation". A copy of the Certificate and Engineering Summary are included in the
Exhibits of this report.

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 6 of 14 pages
EQUIPMENT UNDER TEST (EUT) DETAILS
GENERAL
The ShareWave model PowerWave 2.4GHz Radio is an spread spectrum transceiver which
is designed to communicate digital information. The sample was received and tested on
September 11, 1998. The EUT consisted of the following component(s):
Manufacturer/Model/Description Serial Number
ShareWave/ PowerWave/ Radio DEMO21
INPUT POWER
The EUT is powered from internal batteries.
PRINTED WIRING BOARDS
The EUT contained the following printed wiring boards during emissions testing:
Manufacturer/Description Assembly # Rev. Serial # Crystals (MHz)
ShareWave/Radio 200-0103-000 3 - 44
ENCLOSURE
The EUT enclosure is primarily constructed of sheet metal. It measures approximately 6.4
cm wide by 14 cm deep by .64 cm high.
SUPPORT EQUIPMENT
The following equipment was used as local support equipment for emissions testing:
Manufacturer/Model/Description Serial Number FCC ID Number
Dell D1025HT Monitor 8096677 AK8GDM17SE2T
Dell MMS P200s Host PC 8C74Q E2KTERMIND
Microsoft 58264 Mouse 0372411 C3KAZB1
Dell SK-1000REV Keyboard 00087998 GYUR43SK
HP ThinkJet 2225C Printer (used during
T28178 radiated emissions) 2636S40326 DSI6XU2225C

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 7 of 14 pages
EXTERNAL I/O CABLING
The I/O cabling configuration during emissions testing was as follows:
Cable Description Length (m) From Unit/Port To Unit/Port
Shielded Serial 2.0 Host PC Keyboard
Shielded Parallel (used during T28178;
radiated emissions) 1.5 Host PC Printer
Shielded Serial 1.5 Host PC Mouse
Shielded VGA 2.0 Host PC Monitor
Shielded multiconductor 1.4 Host PC EUT I/O
Coax 0.3 EUT/ Ant Ant./connector
TEST SOFTWARE
The EUT contained test software running during testing which continuously exercised the
system by transmitting and receiving network traffic. The network traffic density was
approximately 80% to simulate the worst case expected in the end user environment.

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 8 of 14 pages
TEST SITE
GENERAL INFORMATION
Final test measurements were taken on September 10, 1998 at the Elliott Laboratories Open
Area Test Site #2 and September 11, 1998 at the Elliott Laboratories Open Area Test Site
#3 located at 684 West Maude Avenue, Sunnyvale, California. The test sites contain
separate areas for radiated and conducted emissions testing. Pursuant to section 2.948 of
the Rules, construction, calibration, and equipment data has been filed with the
Commission.
The FCC recommends that ambient noise at the test site be at least 6 dB below the
allowable limits. Ambient levels are below this requirement with the exception of
predictable local TV, radio, and mobile communications traffic. Considerable engineering
effort has been expended to ensure that the facilities conform to all pertinent FCC
requirements.
CONDUCTED EMISSIONS CONSIDERATIONS
Conducted emissions testing is performed in conformance with ANSI C63.4-1992.
Measurements are made with the EUT connected to the public power network through a
nominal, standardized RF impedance, which is provided by a line impedance stabilization
network, known as a LISN. A LISN is inserted in series with each current-carrying
conductor in the EUT power cord.
RADIATED EMISSIONS CONSIDERATIONS
The FCC has determined that radiation measurements made in a shielded enclosure are not
suitable for determining levels of radiated emissions. Radiated measurements are
performed in an open field environment. The test site is maintained free of conductive
objects within the CISPR defined elliptical area incorporated in ANSI C63.4 guidelines.

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 9 of 14 pages
MEASUREMENT INSTRUMENTATION
RECEIVER SYSTEM
An EMI receiver as specified in CISPR 16-1 is used for emissions measurements. The
receivers used can measure over the frequency range of 9 kHz up to 2000 MHz. These
receivers, allow both ease of measurement and high accuracy to be achieved. The receivers
have Peak, Average, and CISPR (Quasi-peak) detectors built into their design so no
external adapters are necessary. The receiver automatically sets the required bandwidth for
the CISPR detector used during measurements.
For measurements above the frequency range of the receivers, a spectrum analyzer is
utilized because it provides visibility of the entire spectrum along with the precision and
versatility required to support engineering analysis. Average measurements above
1000MHz are performed on the spectrum analyzer using the linear-average method with a
resolution bandwidth of 1 MHz and a video bandwidth of 10 Hz.
INSTRUMENT CONTROL COMPUTER
The receivers utilize either a Rohde and Schwarz EZM Spectrum Monitor/Controller or
contain an internal Spectrum Monitor/Controller to view and convert the receiver
measurements to the field strength at an antenna or voltage developed at the LISN
measurement port, which is then compared directly with the appropriate specification limit.
This provides faster, more accurate readings by performing the conversions described
under Sample Calculations within the Test Procedures section of this report. Results are
printed in a graphic and/or tabular format, as appropriate. A personal computer is used to
record all measurments made with the receivers.
The Spectrum Monitor provides a visual display of the signal being measured. In addition,
the controller or a personal computer run automated data collection programs which control
the receivers. This provides added accuracy since all site correction factors, such as cable
loss and antenna factors are added automatically.
LINE IMPEDANCE STABILIZATION NETWORK (LISN)
Line conducted measurements utilize a fifty microhenry Line Impedance Stabilization
Network as the monitoring point. The LISN used also contains a 250 uH CISPR adapter.
This network provides for calibrated radio frequency noise measurements by the design of
the internal low pass and high pass filters on the EUT and measurement ports, respectively.

Elliott Laboratories, Inc. -- EMC Department Test Report
Report Date: October 20, 1998
File: R28747 Page 10 of 14 pages
POWER METER
A power meter and thermister mount are used for all output power measurements from
transmitters as they provides a broadband indication of the power output. The power meter
used was the Hewlett Packard model 432A, S/N 992-05509 and the thermister mount was
the Hewlett Packard model 478A, S/N 46397.
FILTERS/ATTENUATORS
External filters and precision attenuators are often connected between the receiving antenna
or LISN and the receiver. This eliminates saturation effects and non-linear operation due to
high amplitude transient events.
ANTENNAS
A biconical antenna is used to cover the range from 30 MHz to 300 MHz and a log periodic
antenna is utilized from 300 MHz to 1000 MHz. Narrowband tuned dipole antennas are
used over the entire 30 to 1000 MHz range for precision measurements of field strength.
The antenna calibration factors are included in site factors which are programmed into the
test receivers
ANTENNA MAST AND EQUIPMENT TURNTABLE
The antennas used to measure the radiated electric field strength are mounted on a non-
conductive antenna mast equipped with a motor-drive to vary the antenna height.
ANSI C63.4 specifies that the test height above ground for table mounted devices shall be
80 centimeters. Floor mounted equipment shall be placed on the ground plane if the device
is normally used on a conductive floor or separated from the ground plane by insulating
material from 3 to 12 mm if the device is normally used on a non-conductive floor. During
radiated measurements, the EUT is positioned on a motorized turntable in conformance
with this requirement.
INSTRUMENT CALIBRATION
All test equipment is regularly checked to ensure that performance is maintained in
accordance with the manufacturer's specifications. All antennas are calibrated at regular
intervals with respect to tuned half-wave dipoles. An exhibit of this report contains the list
of test equipment used and calibration information.