DOWNLOAD JBL FLIP II (serv.man8) Service Manual ↓ Size: 1.03 MB | Pages: 71 in PDF or view online for FREE

Model
FLIP II (serv.man8)
Pages
71
Size
1.03 MB
Type
PDF
Document
EMC - CB Certificate
Brand
Device
Audio
File
flip-ii-sm8.pdf
Date
PREV: JBL FLIP II (serv.man7) EMC - CB Certificate

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Report No.: EM201300388-5                     Application No.:  ZJ00030592                        Page 21 of 71 
 
FCC ID: 
APIFLIP2  
 
 
 
 
 
 
Test result: The unit does meet the FCC requirements. 
Report No.: EM201300388-5                     Application No.:  ZJ00030592                        Page 22 of 71 
 
FCC ID: 
APIFLIP2  
 
 
4.6 DWELL TIME 
4.6.1 LIMITS 
Regulation 15.247(a)(1)(iii) Frequency hopping systems in the 2400-2483.5 MHz band shall use at 
least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 
seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. 
Frequency hopping systems may avoid or suppress transmissions on a particular hopping 
frequency provided that a minimum of 15 channels are used. 
4.6.2 TEST PROCEDURES 
1.  Remove the antenna from the EUT and then connect a low RF cable from the antenna port to 
the spectrum. 
2.  Set spectrum analyzer span = 0. centered on a hopping channel; 
3.  Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell time 
per hopping channel. Detector Function = Peak. Trace = Max hold; 
4.  Use the marker-delta function to determine the dwell time.  If this value varies with different 
modes of operation (e.g.. data rate. modulation format. etc.). repeat this test for each 
variation.  The limit is specified in one of the subparagraphs of this Section.  Submit this 
plot(s). An oscilloscope may be used instead of a spectrum analyzer. 
 
4.6.3 TEST SETUP 
 
 
 
4.6.4 TEST RESULTS 
 
The test period: T= 0.4 Second/Channel x 79 Channel = 31.6 s 
1. 
Channel 0: 
2.402GHz 
DH1 time 
slot= 
0.396 
(ms)* 
（1600/(2*79)） * 31.6 = 126.7 
ms 
DH3 time 
slot= 
1.662 
(ms)* 
（1600/(4*79)） * 31.6 = 265.9 
ms 
DH5 time 
slot= 
2.910 
(ms)* 
（1600/(6*79)） * 31.6 = 310.4 
ms 
 
 
 
 
 
 
 
 
 
2DH1 time 
slot= 
0.423 (ms)* （1600/(2*79)） * 31.6
= 135.4 
ms 
2DH3 time 
slot= 
1.680 (ms)* （1600/(4*79)） * 31.6
= 268.8 
ms 
2DH5 time 
slot= 
2.928 (ms)* （1600/(6*79)） * 31.6
= 312.3 
ms 
 
 
 
 
 
 
 
 
 
3DH1 time 
slot= 
0.414 (ms)* （1600/(2*79)） * 31.6
= 132.5 
ms 
3DH3 time 
slot= 
1.664 (ms)* （1600/(4*79)） * 31.6
= 266.2 
ms 
3DH5 time 
slot= 
2.928 (ms)* （1600/(6*79)） * 31.6
= 312.3 
ms 
 
EUT 
Spectrum analyzer 
Report No.: EM201300388-5                     Application No.:  ZJ00030592                        Page 23 of 71 
 
FCC ID: 
APIFLIP2  
 
 
2. 
Channel 39
: 2.441GHz 
DH1 
time slot= 
0.396  (ms)*  （1600/(2*79)） * 31.6 = 126.7 
ms 
DH3 
time slot= 
1.662  (ms)*  （1600/(4*79)） * 31.6 = 265.9 
ms 
DH5 
time slot= 
2.910  (ms)*  （1600/(6*79)） * 31.6 = 310.4 
ms 
 
 
 
 
 
 
 
 
 
2DH1 
time slot= 
0.414  (ms)*  （1600/(2*79)） * 31.6 = 132.5 
ms 
2DH3 
time slot= 
1.680  (ms)*  （1600/(4*79)） * 31.6 = 268.8 
ms 
2DH5 
time slot= 
3.760  (ms)*  （1600/(6*79)） * 31.6 = 401.1 
ms 
 
 
 
 
 
 
 
 
 
3DH1 
time slot= 
0.423  (ms)*  （1600/(2*79)） * 31.6 = 135.4 
ms 
3DH3 
time slot= 
1.680  (ms)*  （1600/(4*79)） * 31.6 = 268.8 
ms 
3DH5 
time slot= 
2.928  (ms)*  （1600/(6*79)） * 31.6 = 312.3 
ms 
 
3. 
Channel 78:
 2.480GHz 
DH1 
time slot= 
0.405  (ms)*  （1600/(2*79)） * 31.6 = 129.6 
 
ms 
DH3 
time slot= 
1.662  (ms)*  （1600/(4*79)） * 31.6 = 265.9 
 
ms 
DH5 
time slot= 
2.910  (ms)*  （1600/(6*79)） * 31.6 = 310.4 
 
ms 
 
 
 
 
 
 
 
 
 
2DH1 
time slot= 
0.405  (ms)*  （1600/(2*79)） * 31.6 = 129.6 
 
ms 
2DH3 
time slot= 
1.680  (ms)*  （1600/(4*79)） * 31.6 = 268.8 
 
ms 
2DH5 
time slot= 
2.928  (ms)*  （1600/(6*79)） * 31.6 = 312.3 
 
ms 
 
 
 
 
 
 
 
 
 
3DH1 
time slot= 
0.414  (ms)*  （1600/(2*79)） * 31.6 = 132.5 
 
ms 
3DH3 
time slot= 
1.680  (ms)*  （1600/(4*79)） * 31.6 = 268.8 
 
ms 
3DH5 
time slot= 
2.928  (ms)*  （1600/(6*79)） * 31.6 = 312.3 
 
ms 
 
The results are not greater than 0.4 seconds. 
The unit does meet the requirements. 
 
Please refer the graph as below: 
 
 
Report No.: EM201300388-5                     Application No.:  ZJ00030592                        Page 24 of 71 
 
FCC ID: 
APIFLIP2  
 
1. Lowest channel (2.402 GHz): 
DH1 
DH3: 
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