Radio Shack AA0120495 User guide

− The test report only allows to be revised within three years from its original issued date unless further standard or the requirement was noticed.
− This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability
are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for
any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its
entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by
Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or
service is or has ever been under an Intertek certification program.
Intertek Testing Services Hong Kong Ltd.
2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong.
Tel: [phone] Fax: [phone] Website: www.hk.intertek-etlsemko.com
RadioShack Corporation
Application
For
Certification
(FCC ID: AAO120495)
Transmitter
HK08061007-1
TC/el
July 28, 2008

INTERTEK TESTING SERVICES
FCC ID: AAO120495 i
LIST OF EXHIBITS
INTRODUCTION
EXHIBIT 1: General Description
EXHIBIT 2: System Test Configuration
EXHIBIT 3: Emission Results
EXHIBIT 4: Equipment Photographs
EXHIBIT 5: Product Labelling
EXHIBIT 6: Technical Specifications
EXHIBIT 7: Instruction Manual
EXHIBIT 8: Miscellaneous Information
EXHIBIT 9: Confidentiality Request

INTERTEK TESTING SERVICES
FCC ID: AAO120495 ii
MEASUREMENT / TECHNICAL REPORT
RadioShack Corporation −MODEL: Gigaware 12-495
FCC ID: AAO120495
July 28, 2008
This report concerns (check one:) Original Grant X Class II Change
Equipment Type: Low Power Transmitter (example: computer, printer, modem, etc.)
Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X
If yes, defer until:
date
Company Name agrees to notify the Commission by:
date
of the intended date of announcement of the product so that the grant can be issued on
that date.
Transition Rules Request per 15.37? Yes No X
If no, assumed Part 15, Subpart C for intentional radiator −the new 47 CFR [05-04-07
Edition] provision.
Report prepared by: Ho Wai Kin, Ben
Intertek Testing Services Hong Kong Ltd.
2/F., Garment Center,
576 Castle Peak Road,
Kowloon, Hong Kong.
Phone: [phone]
Fax: [phone]

INTERTEK TESTING SERVICES
FCC ID: AAO120495 iii
Table of Contents
1.0 General Description.........................................................................................2
1.1 Product Description...................................................................................2
1.2 Related Submittal(s) Grants......................................................................2
1.3 Test Methodology......................................................................................3
1.4 Test Facility...............................................................................................3
2.0 System Test Configuration.............................................................................5
2.1 Justification ...............................................................................................5
2.2 EUT Exercising Software..........................................................................5
2.3 Special Accessories..................................................................................5
2.4 Equipment Modification.............................................................................6
2.5 Measurement Uncertainty.........................................................................6
2.6 Support Equipment List and Description...................................................6
3.0 Emission Results.............................................................................................8
3.1 Field Strength Calculation.........................................................................9
3.2 Radiated Emission Configuration Photograph ........................................11
3.3 Radiated Emission Data..........................................................................12
3.4 Conducted Emission Configuration Photograph......................................16
3.5 Conducted Emission Data.......................................................................16
4.0 Equipment Photographs...............................................................................17
5.0 Product Labelling ..........................................................................................19
6.0 Technical Specifications...............................................................................21
7.0 Instruction Manual.........................................................................................23
8.0 Miscellaneous Information ...........................................................................25
8.1 Measured Bandwidth ..............................................................................26
8.2 Discussion of Pulse Desensitization........................................................27
8.3 Calculation of Average Factor.................................................................28
8.4 Emissions Test Procedures ....................................................................29
9.0 Confidentiality Request .................................................................................32

INTERTEK TESTING SERVICES
FCC ID: AAO120495 iv
List of attached file
Exhibit Type File Description Filename
Test Report Test Report report.pdf
Operation Description Technical Description descri.pdf
Test Setup Photo Radiated Emission radiated photos.pdf
Test Report Bandwidth Plot bw.pdf
External Photo External Photo external photos.pdf
Internal Photo Internal Photo internal photos.pdf
Block Diagram Block Diagram block.pdf
Schematics Circuit Diagram circuit.pdf
ID Label / Location Label Artwork and Location label.pdf
User Manual User Manual manual.pdf
Cover Letter Confidentiality Request request.pdf

INTERTEK TESTING SERVICES
FCC ID: AAO120495 1
EXHIBIT 1
GENERAL DESCRIPTION

INTERTEK TESTING SERVICES
FCC ID: AAO120495 2
1.0 General Description
1.1 Product Description
This EUT is a FM Transmitter with scanning function connects to iPod Player.
The main function is used to transmit the music stored in yours iPod Player
that can be receiving it by yours radio. It is powered by a cigarette adaptor.
The blue backlight will be lighted while plug into the cigarette lighter jack of
your car. Press and hold the auto-scan button that below the LED panel, it
can search for the clear channel to eliminate interference from broadcast
radio channels that are used. The transmitting frequency covers the complete
FM band from 88.1 to 107.9MHz in 0.2MHz step (i.e. 88.1MHz, 88.3MHz,
88.5MHz and so on). The transmitting frequency is shown on the LED panel.
There is three buttons on the right hand side of the unit, press button ‘M1/up’
or ‘M2/down’ to scroll to the desired FM frequency, ‘M3/M’ for two seconds to
store the frequency to the memory locations ‘1’, ‘2’, ‘3’.
Antenna Type: Internal, Integral
For electronic filing, the brief circuit description is saved with filename:
descri.pdf.
1.2 Related Submittal(s) Grants
This is a single application for certification of a transmitter.

INTERTEK TESTING SERVICES
FCC ID: AAO120495 3
1.3 Test Methodology
Radiated emission measurements were performed according to the
procedures in ANSI C63.4 (2003). Radiated Emission measurement was
performed in Open Area Test Sites. Preliminary scans were performed in the
Open Area Test Sites only to determine worst case modes. All Radiated tests
were performed at an antenna to EUT distance of 3 meters, unless stated
otherwise in the "Justification Section" of this Application.
1.4 Test Facility
The open area test site and conducted measurement facility used to collect
the radiated data is located at Garment Centre, 576 Castle Peak Road,
Kowloon, Hong Kong. This test facility and site measurement data have been
fully placed on file with the FCC.

INTERTEK TESTING SERVICES
FCC ID: AAO120495 4
EXHIBIT 2
SYSTEM TEST CONFIGURATION

INTERTEK TESTING SERVICES
FCC ID: AAO120495 5
2.0 System Test Configuration
2.1 Justification
The system was configured for testing in a typical fashion (as a customer
would normally use it), and in the confines as outlined in ANSI C63.4 (2003).
The EUT was powered by its cigarette adaptor (Input: 12VDC).
For maximizing emissions, the EUT was rotated through 360°, the antenna
height was varied from 1 meter to 4 meters above the ground plane, and the
antenna polarization was changed. The step by step procedure for
maximizing emissions led to the data reported in Exhibit 3.0.
The rear of unit shall be flushed with the rear of the table.
The equipment under test (EUT) was configured for testing in a typical fashion
(as a customer would normally use it). The EUT was placed on turntable,
which enabled the engineer to maximize emissions through its placement in
the three orthogonal axes.
2.2 EUT Exercising Software
There was no special software to exercise the device. Once the unit is
powered up, it transmits the RF signal continuously.
2.3 Special Accessories
There are no special accessories necessary for compliance of this product.

INTERTEK TESTING SERVICES
FCC ID: AAO120495 6
2.4 Equipment Modification
Any modifications installed previous to testing by RadioShack Corporation will
be incorporated in each production model sold / leased in the United States.
No modifications were installed by Intertek Testing Services Hong Kong Ltd.
2.5 Measurement Uncertainty
When determining the test conclusion, the Measurement Uncertainty of test
has been considered.
2.6 Support Equipment List and Description
iPod Video (EW-2402)
(Provided by Intertek)
All the items listed under section 2.0 of this report are
Confirmed by:
Ho Wai Kin, Ben
Senior Supervisor
Intertek Testing Services Hong Kong Ltd.
Agent for RadioShack Corporation
Signature
July 28, 2008 Date

INTERTEK TESTING SERVICES
FCC ID: AAO120495 7
EXHIBIT 3
EMISSION RESULTS

INTERTEK TESTING SERVICES
FCC ID: AAO120495 8
3.0 Emission Results
Data is included worst case configuration (the configuration which resulted in
the highest emission levels). A sample calculation, configuration photographs
and data tables of the emissions are included.

INTERTEK TESTING SERVICES
FCC ID: AAO120495 9
3.1 Field Strength Calculation
The field strength is calculated by adding the reading on the Spectrum
Analyzer to the factors associated with preamplifiers (if any), antennas,
cables, pulse desensitization and average factors (when specified limit is in
average and measurements are made with peak detectors). A sample
calculation is included below.
FS = RA +AF +CF −AG +PD +AV
where FS = Field Strength in dBµV/m
RA = Receiver Amplitude (including preamplifier) in dBµV
CF = Cable Attenuation Factor in dB
AF = Antenna Factor in dB
AG = Amplifier Gain in dB
PD = Pulse Desensitization in dB
AV = Average Factor in −dB
In the radiated emission table which follows, the reading shown on the data
table may reflect the preamplifier gain. An example of the calculations, where
the reading does not reflect the preamplifier gain, follows:
FS = RA +AF +CF −AG +PD +AV

INTERTEK TESTING SERVICES
FCC ID: AAO120495 10
3.1 Field Strength Calculation (cont’d)
Example
Assume a receiver reading of 62.0dBµV is obtained. The antenna factor of
7.4dB and cable factor of 1.6dB is added. The amplifier gain of 29dB is
subtracted. The pulse desensitization factor of the spectrum analyzer was
0dB, and the resultant average factor was −10dB. The net field strength for
comparison to the appropriate emission limit is 32dBµV/m. This value in
dBµV/m was converted to its corresponding level in µV/m.
RA = 62.0dBµV
AF = 7.4dB
CF = 1.6dB
AG = 29.0dB
PD = 0dB
AV = −10dB
FS = 62 +7.4 +1.6 −29 +0 +(−10) = 32dBµV/m
Level in µV/m = Common Antilogarithm [(32dBµV/m)/20] = 39.8µV/m

INTERTEK TESTING SERVICES
FCC ID: AAO120495 11
3.2 Radiated Emission Configuration Photograph
Worst Case Radiated Emission
at
107.900MHz
For electronic filing, the worst case radiated emission configuration
photograph is saved with filename: radiated photos.pdf.

INTERTEK TESTING SERVICES
FCC ID: AAO120495 12
3.3 Radiated Emission Data
The data on the following page lists the significant emission frequencies, the
limit and the margin of compliance. Numbers with a minus sign are below the
limit.
Judgement: Passed by 4.0dB margin
TEST PERSONNEL:
Signature
Terry C. H. Chan, Compliance Engineer
Typed / Printed Name
July 28, 2008
Date

INTERTEK TESTING SERVICES
FCC ID: AAO120495 13
Company: RadioShack Corporation Date of Test: June 19, 2008
Model: Gigaware 12-495
Worst Case Operating Mode: Transmitting
Table 1
Radiated Emissions
Polarization Frequency (MHz) Reading (dBµV)
P
re-
Amp
(dB)
A
n
t
enna
factor
(dB) Net at 3m (dBµV/m) Limit at 3m (dBµV/m) Margin (dB)
V 88.300 47.9 16 9.0 40.9 48.0 -7.1
V 176.600 29.0 16 19.0 32.0 43.5 -11.5
V 264.900 26.7 16 21.0 31.7 46.0 -14.3
H 353.200 26.6 16 24.0 34.6 46.0 -11.4
H 441.500 22.5 16 26.0 32.5 46.0 -13.5
H 529.800 20.8 16 27.0 31.8 46.0 -14.2
H 618.100 18.5 16 29.0 31.5 46.0 -14.5
H 706.400 17.4 16 30.0 31.4 46.0 -14.6
H 794.700 16.3 16 31.0 31.3 46.0 -14.7
H 883.000 15.2 16 32.0 31.2 46.0 -14.8
NOTES: 1. Peak Detector Data unless otherwise stated.
2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.
3. Negative value in the margin column shows emission below limit.
4. Horn antenna is used for the emission over 1000MHz.
5. All emissions below the peak limit.
Test Engineer: Terry C. H. Chan

INTERTEK TESTING SERVICES
FCC ID: AAO120495 14
Company: RadioShack Corporation Date of Test: June 19, 2008
Model: Gigaware 12-495
Worst Case Operating Mode: Transmitting
Table 2
Radiated Emissions
Polarization Frequency (MHz) Reading (dBµV)
P
re-
Amp
(dB)
A
n
t
enna
factor
(dB) Net at 3m (dBµV/m) Limit at 3m (dBµV/m) Margin (dB)
V 98.300 44.7 16 12.0 40.7 48.0 -7.3
V 196.600 31.8 16 16.0 31.8 43.5 -11.7
V 294.900 25.7 16 22.0 31.7 46.0 -14.3
H 393.200 27.9 16 25.0 36.9 46.0 -9.1
H 491.500 22.7 16 26.0 32.7 46.0 -13.3
H 589.800 19.5 16 29.0 32.5 46.0 -13.5
H 688.100 19.4 16 29.0 32.4 46.0 -13.6
H 786.400 17.3 16 31.0 32.3 46.0 -13.7
H 884.700 16.0 16 32.0 32.0 46.0 -14.0
H 983.000 14.8 16 33.0 31.8 54.0 -22.2
NOTES: 1. Peak Detector Data unless otherwise stated.
2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.
3. Negative value in the margin column shows emission below limit.
4. Horn antenna is used for the emission over 1000MHz.
5. All emissions below the peak limit.
Test Engineer: Terry C. H. Chan

INTERTEK TESTING SERVICES
FCC ID: AAO120495 15
Company: RadioShack Corporation Date of Test: June 19, 2008
Model: Gigaware 12-495
Worst Case Operating Mode: Transmitting
Table 3
Radiated Emissions
Polarization Frequency (MHz) Reading (dBµV)
P
re-
Amp
(dB)
A
n
t
enna
factor
(dB) Net at 3m (dBµV/m) Limit at 3m (dBµV/m) Margin (dB)
V 107.900 46.0 16 14.0 44.0 48.0 -4.0
V 215.800 31.3 16 17.0 32.3 43.5 -11.2
V 323.700 24.4 16 24.0 32.4 46.0 -13.6
H 431.600 29.8 16 25.0 38.8 46.0 -7.2
H 539.500 21.1 16 28.0 33.1 46.0 -12.9
H 647.400 20.0 16 29.0 33.0 46.0 -13.0
H 755.300 18.7 16 30.0 32.7 46.0 -13.3
H 863.200 17.4 16 31.0 32.4 46.0 -13.6
H 971.100 15.3 16 33.0 32.3 54.0 -21.7
H 1079.000 38.9 33 26.1 32.0 54.0 -22.0
NOTES: 1. Peak Detector Data unless otherwise stated.
2. All measurements were made at 3 meters. Harmonic emissions not
detected at the 3-meter distances were measured at 0.3-meter and an
inverse proportional extrapolation was performed to compare the signal
level to the 3-meter limit. No other harmonic emissions than those
reported were detected at a test distance of 0.3-meter.
3. Negative value in the margin column shows emission below limit.
4. Horn antenna is used for the emission over 1000MHz.
5. All emissions below the peak limit.
Test Engineer: Terry C. H. Chan