Positive Grid BT-4 User manual
Rev. No 2.0
FCC Part 15
EMI TEST REPORT
of
E.U.T. : BT-4 Pedal
Model : BT-4
FCC ID : 2AF4U022004001
for
APPLICANT : Positive Grid Digital Technology Co., Ltd.
ADDRESS : 10F., No.27-7, Yunong Rd., East Dist., Tainan
City 70164, Taiwan
Test Performed by
ELECTRONICS TESTING CENTER, TAIWAN
NO. 34. LIN 5. DINGFU VIL., LINKOU DIST.,
NEW TAIPEI CITY, TAIWAN, 24442, R.O.C.
Tel : (02)26023052 Fax : (02)26010910
Report Number : 15-10-RBF-004-03
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Rev. No 1.0
TEST REPORT CERTIFICATION
Applicant :
Positive Grid Digital Technology Co., Ltd.
10F., No.27-7, Yunong Rd., East Dist., Tainan City 70164, Taiwan
Manufacturer :
Positive Grid Digital Technology Co., Ltd.
10F., No.27-7, Yunong Rd., East Dist., Tainan City 70164, Taiwan
Description of EUT
a) Type of EUT : BT-4 Pedal
b) Trade Name :
PositiveGrid
c) Model No. :
BT-4
d) Power Supply : Battery DC 1.5V*2pcs
Regulation Applied : FCC Rules and Regulations Part 15 Subpart C
I HEREBY CERTIFY THAT: The data shown in this report were made in accordance with the
procedures given in ANSI C63.10-2009, and the energy emitted by the device was founded to be
within the limits applicable. I assume full responsibility for accuracy and completeness of these
data.
Note: 1. The result of the testing report relate only to the item tested.
2. The testing report shall not be reproduced expect in full, without the written approval of
ETC
Summary of Tests
Test Results
Radiated Emission Pass
Conducted Emission N/A
Emission Bandwidth Pass
Output Power Pass
100 kHz Bandwidth of Band Edges Pass
Power Density Pass
Out-of-Band Conducted Emission Pass
Duty Cycle N/A
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Rev. No 1.0
Date Test Item Received : Oct. 05, 2015
Date Test Campaign Completed : Oct. 13, 2015
Date of Issue : Nov. 30, 2015
Test Engineer :
(
Vincent Chang , Engineer )
Approve & Authorized Signer :
Shang-Sheng Liou, Section Manager
EMC Dept. II of ELECTRONICS
TESTING CENTER, TAIWAN
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Rev. No 1.0
Table of Contents Page
1GENERAL INFORMATION.......................................................................................................1
1.1 Product Description...................................................................................................................... 1
1.2 Characteristics of Device ............................................................................................................. 1
1.3 Test Methodology ........................................................................................................................ 1
1.4 Test Facility.................................................................................................................................. 1
2PROVISIONS APPLICABLE......................................................................................................2
2.1 Definition ..................................................................................................................................... 2
2.2 Requirement for Compliance ....................................................................................................... 3
2.3 Restricted Bands of Operation ..................................................................................................... 5
2.4 Labeling Requirement.................................................................................................................. 5
2.5 User Information .......................................................................................................................... 6
3. SYSTEM TEST CONFIGURATION..........................................................................................7
3.1 Justification .................................................................................................................................. 7
3.2 Devices for Tested System........................................................................................................... 7
4RADIATED EMISSION MEASUREMENT ..............................................................................8
4.1 Applicable Standard..................................................................................................................... 8
4.2 Measurement Procedure............................................................................................................... 8
4.3 Measuring Instrument ................................................................................................................ 10
4.4 Radiated Emission Data ............................................................................................................. 11
4.5 Field Strength Calculation ......................................................................................................... 17
4.6 Photos of Radiation Measuring Setup........................................................................................ 18
5CONDUCTED EMISSION MEASUREMENT........................................................................ 20
5.1 Description ................................................................................................................................. 20
6ANTENNA REQUIREMENT.................................................................................................... 21
6.1 Standard Applicable................................................................................................................... 21
6.2 Antenna Construction and Directional Gain.............................................................................. 21
7EMISSION BANDWIDTH MEASUREMENT......................................................................... 22
7.1 Standard Applicable................................................................................................................... 22
7.2 Measurement Procedure............................................................................................................. 22
7.3 Measurement Equipment ........................................................................................................... 22
7.4 Measurement Data ..................................................................................................................... 23
8OUTPUT POWER MEASUREMENT......................................................................................27
8.1 Standard Applicable................................................................................................................... 27
8.2 Measurement Procedure............................................................................................................. 27
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Rev. No 1.0
8.3 Measurement Equipment ........................................................................................................... 27
8.4 Measurement Data ..................................................................................................................... 28
9100 KHZ BANDWIDTH OF BAND EDGES MEASUREMENT.............................................29
9.1 Standard Applicable................................................................................................................... 29
9.2 Measurement Procedure............................................................................................................. 29
9.3 Measurement Equipment ........................................................................................................... 29
9.4 Measurement Data ..................................................................................................................... 30
10 POWER DENSITY MEASUREMENT...................................................................................33
10.1 Standard Applicable................................................................................................................. 33
10.2 Measurement Procedure........................................................................................................... 33
10.3 Measurement Equipment ......................................................................................................... 33
10.4 Measurement Data ................................................................................................................... 34
11. OUT-OF-BAND CONDUCTED EMISSION MEASUREMENT........................................ 38
11.1 Standard Applicable................................................................................................................. 38
11.2 Measurement Procedure........................................................................................................... 38
11.3 Measurement Equipment ......................................................................................................... 38
11.4 Measurement Data ................................................................................................................... 39
12. DYTY CYCLE.......................................................................................................................... 46
12.1 Standard Applicable................................................................................................................. 46
12.2 Measurement Equipment ......................................................................................................... 46
12.3 Measurement Data ................................................................................................................... 46
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 1 of 46 Sheets
Rev. No 2.0
1 GENERAL INFORMATION
1.1 Product Description
a) Type of EUT : BT-4 Pedal
b) Trade Name : PositiveGrid
c) Model No. : BT-4
d) Power Supply : Battery DC1.5V*2pcs
1.2 Characteristics of Device
The product is a BT-4 Pedal.
1. Turn on the power of BT Pedal
2. Turn on Bluetooth on iOS device to connect with BT Pedal
3. Tap on the Message Name to configure, or select the quick presets from the header
1.3 Test Methodology
Both conducted and radiated emissions were performed according to the procedures
illustrated in ANSI C63.10-2009. Other required measurements were illustrated in separate
sections of this test report for details. For RF test the measurement procedure was refered to
FCC KDB 558074 D01 DTS Meas Guidance v03r03.
Instead of 0.8m EUT height above 1GHz, 1.5m was allowed by FCC December 2014 TCB
Conference call.
The EUT set for test with the continuous transmission mode and the duty cycle >98%.
Measueement Software
Software Version Note
e3 Version 6.100618b Radiated Emission Test
e3 Version 6.100421 Conducted Emission Test
1.4 Test Facility
The open area test site and conducted measurement facility used to collect the radiated data
is located on the roof top of Building at No.34, Lin 5, Dingfu Vil., Linkou Dist., New
Taipei City, Taiwan 24442, R.O.C.
This site is FCC 2.948 listed and accepted in a letter dated Jan. 29, 2014.
Registration Number: 90589
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 2 of 46 Sheets
Rev. No 2.0
2 PROVISIONS APPLICABLE
2.1 Definition
Unintentional radiator:
A device that intentionally generates and radio frequency energy for use within the device, or
that sends radio frequency signals by conduction to associated equipment via connecting
wiring, but which is not intended to emit RF energy by radiation or induction.
Class A Digital Device:
A digital device which is marketed for use in commercial or business environment; exclusive
of a device which is market for use by the general public, or which is intended to be used in
the home.
Class B Digital Device :
A digital device which is marketed for use in a residential environment notwithstanding use in
a commercial, business of industrial environment. Example of such devices that are marketed
for the general public.
Note : A manufacturer may also qualify a device intended to be marketed in a commercial,
business, or industrial environment as a Class B digital device, and in fact is
encouraged to do so, provided the device complies with the technical specifications for
a Class B Digital Device. In the event that a particular type of device has been found to
repeatedly cause harmful interference to radio communications, the Commission may
classify such a digital device as a Class B Digital Device, Regardless of its intended
use.
Intentional radiator:
A device that intentionally generates and emits radio frequency energy by radiation or
induction.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 3 of 46 Sheets
Rev. No 2.0
2.2 Requirement for Compliance
(1) Conducted Emission Requirement
Except for Class A digital devices, for equpment that is designed to be connected to the
public utility (AC) power line, the radio frequency voltage that is conducted back onto
the AC power line on any frequency or frequencies within the band 150kHz to 30MHz
shall not exceed the limits in the following table, as measured using a 50μH/50 ohms
line impedance stabilization network (LISN). Compliance with the provisions of this
paragraph shall be based on the measurement of the radio frequency voltage between
each power line and ground at the power terminal. The lower limit applies at the band
edges.
Frequency
MHz Quasi Peak
dBμV Average
dBμV
0.15 - 0.5 66-56* 56-46*
0.5 - 5.0 56 46
5.0 - 30.0 60 50
* Decreases with the logarithm of the frequency
(2) Radiated Emission Requirement
For unintentional device, according to §15.109(a), except for Class A digital devices, the
field strength of radiated emissions from unintentional radiators at a distance of 3 meters
shall not exceed the following values:
Frequency
MHz Distance
Meters Radiated
dBμV/m Radiated
μV/m
30 - 88 3 40.0 100
88 - 216 3 43.5 150
216 - 960 3 46.0 200
Above 960 3 54.0 500
For intentional device, according to §15.209(a), the general requirement of field strength
of radiated emissions from intentional radiators at a distance of 3 meters shall not exceed
the above table.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 4 of 46 Sheets
Rev. No 2.0
(3) Antenna Requirement
For intentional device, according to §15.203, an intentional radiator shall be designed to
ensure that no antenna other than that furnished by the responsible party shall be used with
the device.
(4) Bandwidth Requirement
For direct sequence system, according to 15.247(a)(2), the minimum 6dB bandwidth shall
be at least 500 kHz.
(5) Output Power Requirement
For direct sequence system, according to 15.247(b), the maximum peak output power of
the transmitter shall not exceed 1 Watt. If transmitting antennas of directional gain greater
than 6 dBi are used, the power shall be reduced by the amount in dB that the directional
gain of the antenna exceeds 6 dBi.
(6) 100 kHz Bandwidth of Frequency Band Edges Requirement
According to 15.247(c), if any 100 kHz bandwidth outside these frequency bands, the
radio frequency power that is produced by the modulation products of the spreading
sequence, the information sequence and the carrier frequency shall be either at least 20 dB
below that in any 100 kHz bandwidth within the band that contains the highest level of the
desired power or shall not exceed the general levels specified in §15.209(a), whichever
results in the lesser attenuation.
(7) Power Density Requirement
According to 15.247(d), for direct sequence systems, the transmitted power density
averaged over any 1 second interval shall not be greater than 8 dBm in any 3 kHz
bandwidth within these bands.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 5 of 46 Sheets
Rev. No 2.0
2.3 Restricted Bands of Operation
Only spurious emissions are permitted in any of the frequency bands listed below :
MHz MHz MHz GHz
0.090 - 0.110 16.42-16.423 399.9-410 4.5-5.15
0.495 - 0.505 ** 16.69475 - 16.69525 608-614 5.35-5.46
2.1735 - 2.1905 16.80425 - 16.80475 960-1240 7.25-7.75
4.125-4.128 25.5-25.67 1300-1427 8.025-8.5
4.17725-4.17775 37.5-38.25 1435-1626.5 9.0-9.2
4.20725-4.20775 73-74.6 1645.5-1646.5 9.3-9.5
6.215-6.218 74.8-75.2 1660-1710 10.6-12.7
6.26775-6.26825 108-121.94 1718.8-1722.2 13.25-13.4
6.31175-6.31225 123-138 2200-2300 14.47-14.5
8.291-8.294 149.9-150.05 2310-2390 15.35-16.2
8.362-8.366 156.52475 - 156.52525 2483.5-2500 17.7-21.4
8.37625-8.38675 156.7-156.9 2655-2900 22.01-23.12
8.41425-8.41475 162.0125-167.17 3260-3267 23.6-24.0
12.29-12.293 167.72-173.2 3332-3339 31.2-31.8
12.51975-12.52025 240-285 3345.8-3358 36.43-36.5
12.57675-12.57725 322-335.4 3360-4400 Above 38.6
13.36-13.41
** : Until February 1, 1999, this restricted band shall be 0.490-0.510 MHz
2.4 Labeling Requirement
The device shall bear the following statement in a conspicuous location on the device :
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions : (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 6 of 46 Sheets
Rev. No 2.0
2.5 User Information
The users manual or instruction manual for an intentional or unintentional radiator shall
caution the user that changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
For a Class B digital device or peripheral, the instructions furnished the user shall include the
following or similar statement, placed in a prominent location in the text of the manual.
The Federal Communications Commission Radio Frequency Interference Statement includes
the following paragraph.
This equipment has been tested and found to comply with the limits for a Class B Digital
Device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction may cause harmful interference to radio
communication. However, there is no guarantee that interference will not occur in a particular
installation.
If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-- Consult the dealer or an experienced radio / TV technician for help.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 7 of 46 Sheets
Rev. No 2.0
3. SYSTEM TEST CONFIGURATION
3.1 Justification
For both radiated and conducted emissions below 1 GHz, the system was configured for
testing in a typical fashion as a customer would normally use it. The peripherals other than
EUT were connected in normally standing by situation. Measurement was performed under the
condition that a computer program was exercised to simulate data communication of EUT, and
the transmission rate was set to maximum allowed by EUT. Three highest emissions were
verified with varying placement of the cables connected to EUT to maximize the emission
from EUT.
For conducted and radiated spurious emissions, whichever RF channel is operated, the digital
circuits function identically. As the reason, measurement of radiated emissions from digital
circuits is only performed with channel 1 by transmitting mode.
3.2 Devices for Tested System
Device Manufacture Model / FCC ID Cable Description
BT-4 Pedal * Positive Grid Digital
Technology Co., Ltd.
BT-4/
2AF4U022004001
0.8m Unshielded Audio Cable
Remark “*” means equipment under test.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 8 of 46 Sheets
Rev. No 2.0
4 RADIATED EMISSION MEASUREMENT
4.1 Applicable Standard
For unintentional radiator, the radiated emission shall comply with §15.109(a).
For intentional radiators, according to §15.247 (a), operation under this provision is limited
to frequency hopping and direct sequence spread spectrum, and the out band emission shall
be comply with §15.247 (d)
4.2 Measurement Procedure
A. Preliminary Measurement For Portable Devices
For portable devices, the following procedure was performed to determine the maximum
emission axis of EUT:
1. With the receiving antenna is H polarization, rotate the EUT in turns with three orthogonal
axes to determine the axis of maximum emission.
2. With the receiving antenna is V polarization, rotate the EUT in turns with three orthogonal
axes to determine the axis of maximum emission.
3. Compare the results derived from above two steps. So, the axis of maximum emission
from EUT was determined and the configuration was used to perform the final
measurement.
B. Final Measurement
1. Setup the configuration per figure 1 and 2 for frequencies measured below and above 1
GHz respectively. Turn on EUT and make sure that it is in normal function.
2. For emission frequencies measured below 1 GHz, a pre-scan is performed in a shielded
chamber to determine the accurate frequencies of higher emissions will be checked on a
open test site. As the same purpose, for emission frequencies measured above 1 GHz, a
pre-scan also be performed with a 1 meter measuring distance before final test.
3. For emission frequencies measured below and above 1 GHz, set the spectrum analyzer on
a 100 kHz and 1 MHz resolution bandwidth respectively for each frequency measured in
step 2.
4. The search antenna is to be raised and lowered over a range from 1 to 4 meters in
horizontally polarized orientation. Position the highness when the highest value is
indicated on spectrum analyzer, then change the orientation of EUT on test table over a
range from 0。to 360。with a speed as slow as possible, and keep the azimuth that
highest emission is indicated on the spectrum analyzer. Vary the antenna position again
and record the highest value as a final reading. A RF test receiver is also used to confirm
emissions measured.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 9 of 46 Sheets
Rev. No 2.0
5. Repeat step 4 until all frequencies need to be measured were complete.
6. Repeat step 5 with search antenna in vertical polarized orientations.
7. Check the three frequencies of highest emission with varying the placement of cables (if
any) associated with EUT to obtain the worse case and record the result.
Figure 1 : Frequencies measured below 1 GHz configuration
RF Test
Receiver
Search
Antenna
3m
4m
1m
Turn
Table
EUT
0.8m
Antenna Tower
Ground Plane
Figure 2 : Frequencies measured above 1 GHz configuration
S
p
ectrum
Analyzer
Hor n Antenna
3m
4m
1m
Turn
Table
EUT
Antenna Tower
Am
p
li
f
ier
1.5
m
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 10 of 46 Sheets
Rev. No 2.0
4.3 Measuring Instrument
The following instrument are used for radiated emissions measurement:
Equipment Manufacturer Model No. Calibration Date Next Cal. Date
Spectrum Analyzer Rohde & Schwarz FSP40 2015/07/06 2016/07/05
EMI Test Receiver Rohde & Schwarz ESCI 2015/09/09 2016/09/08
Test Receiver Rohde & Schwarz ESVS30 2015/06/03 2016/06/02
Double Ridged
Antenna
EMCO 3115 2014/10/22 2015/10/21
Double Ridged Guide
Horn Antenna
EMCO 3116 2015/10/12 2016/10/11
Log-periodic Antenna EMCO 3146 2014/11/04 2015/11/03
Biconical Antenna EMCO 3110B 2014/11/04 2015/11/03
Amplifier HP 8449B 2015/10/06 2016/10/05
Amplifier HP 8447D 2014/11/10 2015/11/09
Amplifier HP 83051A 2014/10/22 2015/10/21
Measuring instrument setup in measured frequency band when specified detector function is used :
Frequency Band
(MHz)
Instrument Function
Resolution
bandwidth
Video
Bandwidth
RF Test Receiver Quasi-Peak 120 kHz N/A
30 to 1000
Spectrum Analyzer Peak 100 kHz 100 kHz
Spectrum Analyzer Peak 1 MHz 1 MHzAbove 1000
Spectrum Analyzer Average 1 MHz 10 Hz
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 11 of 46 Sheets
Rev. No 2.0
4.4 Radiated Emission Data
4.4.1 RF Portion
Site :CHAMBER #2 Date :2015-10-09
Limit :1G TO 40G PEAK Ant. Pol. :HORIZONTAL
EUT :BT-4 Pedal Model :BT-4
Power Rating :DC 1.5V BATTERY * 2 Temp. :28°C
Engineer :VC Humi. :68 %
Test Mode :TXRX-CH LO 2402 - MI 2440 - HI 2480MHz
Freq
MHz
Reading
dBµV
Correction
Factor
dB
Result
dBµV/m
Limits
dBµV/m
Over limit
dB
Detector
4804.0000 49.5 1.3 50.8 54.0 -3.2 Average
4804.0000 51.6 1.3 52.9 74.0 -21.1 Peak
4880.0000 48.9 1.4 50.3 54.0 -3.7 Average
4880.0000 51.1 1.4 52.5 74.0 -21.5 Peak
4960.0000 47.8 1.8 49.6 54.0 -4.4 Average
4960.0000 50.0 1.8 51.8 74.0 -22.2 Peak
Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)
3. The margin value=Limit – Result
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 12 of 46 Sheets
Rev. No 2.0
Site :CHAMBER #2 Date :2015-10-09
Limit :1G TO 40G PEAK Ant. Pol. :VERTICAL
EUT :BT-4 Pedal Model :BT-4
Power Rating :DC 1.5V BATTERY * 2 Temp. :28°C
Engineer :VC Humi. :68 %
Test Mode :TXRX-CH LO 2402 - MI 2440 - HI 2480MHz
Freq
MHz
Reading
dBµV
Correction
Factor
dB
Result
dBµV/m
Limits
dBµV/m
Over limit
dB
Detector
4804.0000 46.8 1.3 48.1 54.0 -5.9 Average
4804.0000 49.0 1.3 50.3 74.0 -23.7 Peak
4880.0000 46.0 1.4 47.4 54.0 -6.6 Average
4880.0000 48.4 1.4 49.8 74.0 -24.2 Peak
4960.0000 45.2 1.8 47.0 54.0 -7.0 Average
4960.0000 47.4 1.8 49.2 74.0 -24.8 Peak
Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)
3. The margin value=Limit – Result
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 13 of 46 Sheets
Rev. No 2.0
4.4.2 Radiated Eimssion of Restricted bands
Site :CHAMBER #2 Date :2015-10-09
Limit :1G TO 40G PEAK Ant. Pol. :HORIZONTAL
EUT :BT-4 Pedal Model :BT-4
Power Rating :DC 1.5V BATTERY * 2 Temp. :28°C
Engineer :VC Humi. :68 %
Test Mode :CH LO & HI - Restricted Bands
Freq
MHz
Reading
dBµV
Correction
Factor
dB
Result
dBµV/m
Limits
(AVG)
dBµV/m
Over limit
dB
Detector
2335.0000 47.4 -6.1 41.3 54.0 -12.7 Peak
2368.0000 47.4 -6.1 41.3 54.0 -12.7 Peak
2493.0000 47.7 -5.8 41.9 54.0 -12.1 Peak
2497.0000 47.1 -5.8 41.3 54.0 -12.7 Peak
Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)
3. The margin value=Limit – Result
4. Peak measurements are compared to the average limit - as peak measurements are below the
average limit, they also comply with the peak limit.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 14 of 46 Sheets
Rev. No 2.0
Site :CHAMBER #2 Date :2015-10-09
Limit :1G TO 40G PEAK Ant. Pol. :VERTICAL
EUT :BT-4 Pedal Model :BT-4
Power Rating :DC 1.5V BATTERY * 2 Temp. :28°C
Engineer :VC Humi. :68 %
Test Mode :CH LO & HI - Restricted Bands
Freq
MHz
Reading
dBµV
Correction
Factor
dB
Result
dBµV/m
Limits
(AVG)
dBµV/m
Over limit
dB
Detector
2327.5000 48.9 -6.1 42.8 54.0 -11.2 Peak
2350.5000 48.9 -6.1 42.8 54.0 -11.2 Peak
2490.0000 48.3 -5.8 42.5 54.0 -11.5 Peak
2497.7500 49.4 -5.8 43.6 54.0 -10.4 Peak
Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss - Amplifier Gain (if any)
3. The margin value=Limit – Result
4. Peak measurements are compared to the average limit - as peak measurements are below the
average limit, they also comply with the peak limit.
ETC Report No. : 15-10-RBF-004-03 FCC ID: 2AF4U022004001
Sheet 15 of 46 Sheets
Rev. No 2.0
4.4.3 Other Emission
a) Emission frequencies below 1 GHz
Site :OPEN SITE Date :2015-10-09
Limit :3M Ant. Pol. :HORIZONTAL
EUT :BT-4 Pedal Model :BT-4
Power Rating :DC 1.5V BATTERY * 2 Temp. :28°C
Engineer :VC Humi. :68 %
Test Mode :OPERATION MODE
Freq
MHz
Reading
dBµV
Correction
Factor
dB
Result
dBµV/m
Limits
dBµV/m
Over limit
dB
Detector
635.2800 9.5 24.1 33.6 46.0 -12.4 QP
757.5000 9.3 26.1 35.4 46.0 -10.6 QP
788.5400 10.1 26.5 36.6 46.0 -9.4 QP
838.9800 9.5 27.5 37.0 46.0 -9.0 QP
873.9000 9.2 28.0 37.2 46.0 -8.8 QP
903.0000 9.2 28.4 37.6 46.0 -8.4 QP
Note :
1. Result = Reading + Corrected Factor
2. Corrected Factor = Antenna Factor + Cable Loss
3. The margin value=Limit - Result
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