JBL SB 200 (serv.man5) EMC - CB Certificate ▷ View online
Report No.: EM201200331-1 Application No.:ZJ00016958 Page 25 of 56
2DH3
2DH5
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3DH1
3DH3
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3DH5
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4.5 HOPPING CHANNEL SEPARATION
4.5.1 LIMITS
EN300 328 clause 4.3.4.2
≥1MHz
4.5.2TEST PROCEDURE
Remove the antenna from the EUT and then connect a low attenuation cable from the antenna port to the spectrum.
Set the spectrum analyzer: RBW >= 1% of the span (set 100 kHz). VBW >= RBW , Span = enough to captch the trace.
Sweep = auto; Detector Function = Peak. Trace = Max,hold.
Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent
channels. The limit is specified in one of the subparagraphs of this Section. Submit this plot
Pre-test the 3 modulation to find GFSK and 8DPSK is worse case, so only record GFSK and 8DPSK test data.
Set the spectrum analyzer: RBW >= 1% of the span (set 100 kHz). VBW >= RBW , Span = enough to captch the trace.
Sweep = auto; Detector Function = Peak. Trace = Max,hold.
Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent
channels. The limit is specified in one of the subparagraphs of this Section. Submit this plot
Pre-test the 3 modulation to find GFSK and 8DPSK is worse case, so only record GFSK and 8DPSK test data.
4.5.3 TEST RESULTS
Mode Test
Channel
Carrier Frequencies
Separated
Limit Results
GFSK
Lower Channels
(channel 0 and channel 1)
1.010MHz
≥1MHz
Pass
Middle Channels
(channel 39 and channel 40)
1.000MHz
≥1MHz
Pass
Upper Channels
(channel 77 and channel 78)
1.000MHz
≥1MHz
Pass
8DPSK
Lower Channels
(channel 0 and channel 1)
1.010MHz
≥1MHz
Pass
Middle Channels
(channel 39 and channel 40)
1.000MHz
≥1MHz
Pass
Upper Channels
(channel 77 and channel 78)
1.010MHz
≥1MHz
Pass
Result plot as follows:
For GFSK
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