H-1
Appendix H
Miscellaneous Characterization of White Space Devices
This appendix documents the data collected from measurements that were not specified 
in the test plan but were performed in an effort to investigate unexpected performance 
exhibited by some of the WSD prototypes.  The tables provided in Section H.1 document 
the results obtained from exercising the WSD sensing/detection capability within the 
laboratory.  Section H.2 presents spectral plots illustrating the data collected from 
radiated spurious emissions measurements performed on the devices.
H-2
H.1. Results of preliminary sensing tests performed at the FCC laboratory.
Adaptrum Prototype
Reported DTV Occupied Channels in Ch 21-51 Tuning Range 
With Provided Antenna (3/6, 3/11 & 4/1, 2008)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A A A A A A A A
22 A A A O O O A A A
23 A A A A A A A A A
24 A A A O O O A A A
25 A A A A A A A A A
26 A A A O O O A A A
27 O O O O O O A A A
28 O A O O O O A A A
29 O O O O O O A A A
30 O O O O O O A A A
31 A O A A A A O O O
32 A A A O O O A A A
33 A A A O O O A A A
34 O O O O O O A A A
35 A A A A O A A A A
36 O O O O O O A A A
37 O A A A A A A A A
38 O O O O O O A A A
39 O O O O O O A A A
40 O O O O O O A A A
41 A A A O O O A A A
42 O O O O O O A A A
43 A A A A A A A A A
44 A A A A A A A A A
45 A A A O O O A A A
46 O O O O O O A A A
47 A A A A A A A A A
48 O O O O O O A A A
49 A A A A A A A A A
50 A A A O O O O A A
51 O O O O O O A O O
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-3
Adaptrum Prototype
Reported DTV Occupied Channels in Ch 21-51 Tuning Range 
With Antenna Port Terminated into 50? Load (3/6, 4/1 & 4/2, 2008)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A A A A A
22 A A A O O O
23 A A A A A A
24 A A A O O O
25 A A A A A A
26 A A A A A A
27 A A A A A A
28 A A A A A A
29 A A A A A O
30 O A A A A A
31 O O O O O O
32 A A A A A A
33 A A A A A A
34 A A A O O O
35 A A A A A A
36 A A A O O O
37 A A A A A A
38 O O O O O O
39 A O O O O O
40 A O O O O O
41 A A A A A A
42 O O O A O O
43 A A A A A A
44 A A A A A A
45 A A A A A A
46 A A A A O A
47 A A A A A A
48 A A A O O O
49 A A A A A A
50 A A A A A A
51 A A A A A O
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-4
Microsoft Prototype
Reported Occupied Channels in Ch 21-51 Tuning Range with Provided Antenna
(3/4& 3/5, 2008)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 O O O O O O
22 O O O O O O
23 O O O O O O
24 O O O O O O
25 O O O O O O
26 O O O O O O
27 O O O O O O
28 O O O O O O
29 O O O O O O
30 O O O A A O
31 O O O O O O
32 O O O O O O
33 O O O O O O
34 O O O O O O
35 O O O O O O
36 O O O O O O
37 O O O O O O
38 O O O O O O
39 O O O O O O
40 O O O O O O
41 O O O A A A
42 O O O O O O
43 O O O O O O
44 O O O O O O
45 O O O O O O
46 O O O O O O
47 O O O O O O
48 O O O O O O
49 O O O O O O
50 O O O O O O
51 O O O O O O
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-5
Microsoft Prototype
Reported Occupied Channels in Ch 21-51 Tuning Range 
With Antenna Port Terminated into 50? Load (3/4/08)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A A A A A
22 A A A A A A
23 A A A A A A
24 A A A A A A
25 A A A A A A
26 A A A A A A
27 A A A A A A
28 A A A A A A
29 A A A A A A
30 A A A A A A
31 A A A A A A
32 A A A A A A
33 A A A A A A
34 A A A A A A
35 A A A A A A
36 A A A A A A
37 A A A A A A
38 A A A A A A
39 A A A A A A
40 A A A A A A
41 A A A A A A
42 A A A A A A
43 A A A A A A
44 A A A A A A
45 A A A A A A
46 A A A A A A
47 A A A A A A
48 A A A A A A
49 A A A A A A
50 A A A A A A
51 A A A A A A
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-6
Motorola Prototype
Reported Occupied DTV Channels in Ch 21-51 Tuning Range 
With Provided Antenna (3/4, 3/5 & 3/27, 2008)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A A A A A A A A
22 A A A A A A A A A
23 A A A A A A A A A
24 A A A A A A A A A
25 A A A A A A A A A
26 A A A A A A A A A
27 O O O O O O A A A
28 A A A O O O A A A
29 O O O O O O A A A
30 A A A A A A A A A
31 A A A A A O A A A
32 A A A A A A A A A
33 A A A A A A A A A
34 O O O O O O A A A
35 O O O O O O A A A
36 O O O O O O A A A
37 A A A A A A A A A
38 O O O O O O A A A
39 O O O O O O A A A
40 O O O O O O A A A
41 O O O O O O O O O
42 O O O O O O A A A
43 O O O O O O O O O
44 A A A A A A A A A
45 A A A A A A A A A
46 O O O O O O A A A
47 A A A A A A A A A
48 O O O O O O A A A
49 A A A O O A A A A
50 A A A A A A A A A
51 O O O O O O A A A
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-7
Motorola Prototype
Reported DTV Occupied Channels in Ch 21-51 Tuning Range 
With Antenna Port Terminated into 50? Load (3/4 & 3/27, 2008)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A A A A A A A A
22 A A A A A A A A A
23 A A A A A A A A A
24 A A A A A A A A A
25 A A A A A A A A A
26 A A A A A A A A A
27 A A A A A A A A A
28 A A A A A A A A A
29 A A A A A A A A A
30 A A A A A A A A A
31 A A A A A A A A A
32 A A A A A A A A A
33 A A A A A A A A A
34 A A A A A A A A A
35 A A A A A A A A A
36 A A A A A A A A A
37 A A A A A A A A A
38 A A A A A A A A A
39 A A A A A A A A A
40 A A A A A A A A A
41 A A A A A A A A A
42 A A A A A A A A A
43 A A A A A A A A A
44 A A A A A A A A A
45 A A A A A A A A A
46 A A A A A A A A A
47 A A A A A A A A A
48 A A A A A A A A A
49 A A A A A A A A A
50 A A A A A A A A A
51 A A A A A A A A A
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-8
Philips Prototype
Reported Occupied Channels in Ch 21-51 Tuning Range with Provided Antenna
(3/12/08)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A O O A O A A A
22 O O O O O O O O O
23 O O O O O O O O O
24 O O O O O O O O O
25 O O O O O O O O O
26 O O O O O O O O O
27 O O O O O O O O O
28 O O O O O O A A A
29 O O O O O O O O O
30 O O O O O O O O O
31 O O O O O O O O O
32 O O O O O O O O O
33 O O O O O O A A A
34 O O O O O O A O A
35 O O O O O O O O O
36 O O O O O O O O O
37 O A O O O O O O O
38 O O O O O O O O O
39 O O O O O O A O A
40 O O O O O O O O O
41 O O O O O O O O O
42 O O O O O O A A A
43 O O O O O O O O O
44 O A O O O O A A A
45 O O O O O O O O O
46 O O O O O O O O O
47 O O O O O O O O O
48 O O O O O O O O O
49 O O O O O O A A A
50 O O O O O O O O O
51 O O O O O O O O O
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-9
Philips Prototype
Reported Occupied Channels in Ch 21-51 Tuning Range 
With Antenna Port Terminated into 50? Load (3/12/08)
INDOOR OUTDOOR CHAMBER
Scan # Scan # Scan #CHANNEL #
1 2 3 1 2 3 1 2 3
21 A A A A A A A A A
22 A A O O O O A A A
23 A A A A A A A A A
24 A O O O O O A A A
25 A A A A A A A A A
26 A A A O O O A A A
27 A A A A O O A A A
28 A A A A A A A A A
29 A A A A A O A A A
30 A A A A A A A A A
31 A A A A A A A A A
32 A A A O O O A A A
33 A A A O O O A A A
34 A A A O O O A A A
35 A A A O O O A A A
36 A A A O O O A A A
37 A A A A A A A A A
38 O A A O O O A A A
39 A A A O O O A A A
40 A A A O O O A A A
41 A A A A A A A A A
42 A A A O O O A A A
43 A A A A A A A A A
44 A A A A A A A A A
45 O O A O O O A A A
46 A A A O O O A A A
47 A A A A A A A A A
48 A A A O O O A A A
49 A A A A A A A A A
50 A A O O O O A A A
51 A A A O O O A A A
O = occupied channel
A = available channel (unoccupied)
Blank = no data
H-10
H.2. Results of radiated spurious emissions measurements performed on the WSDs
-110
-105
-100
-95
-90
-85
51
2
51
8
52
4
53
0
53
6
54
2
54
8
55
4
56
0
56
6
57
2
57
8
58
4
59
0
59
6
60
2
60
8
61
4
62
0
62
6
63
2
63
8
64
4
65
0
65
6
66
2
66
8
67
4
68
0
68
6
69
2
69
8
Frequency/Channels (MHz)
Re
cie
ve
dP
ow
er
(d
Bm
)
Adaptrum WSD Spurious Energy
Figure 1.  Adaptrum WSD Spurious Emissions at 3m.
-100
-95
-90
-85
-80
51
2
51
8
52
4
53
0
53
6
54
2
54
8
55
4
56
0
56
6
57
2
57
8
58
4
59
0
59
6
60
2
60
8
61
4
62
0
62
6
63
2
63
8
64
4
65
0
65
6
66
2
66
8
67
4
68
0
68
6
69
2
69
8
Frequency/Channels (MHz)
Re
cie
ve
dP
ow
er
(d
Bm
)
MS WSD Spurious Energy
Figure 2.  Microsoft WSD Spurious Emissions at 3m.
H-11
-100
-95
-90
-85
-80
51
2
51
8
52
4
53
0
53
6
54
2
54
8
55
4
56
0
56
6
57
2
57
8
58
4
59
0
59
6
60
2
60
8
61
4
62
0
62
6
63
2
63
8
64
4
65
0
65
6
66
2
66
8
67
4
68
0
68
6
69
2
69
8
Frequency/Channels (MHz)
Re
cie
ve
dP
ow
er
(d
Bm
)
Motorola WSD Spurious Energy
Figure 3.  Motorola WSD Spurious Emissions at 3m.
-100
-96
-92
-88
51
2
51
8
52
4
53
0
53
6
54
2
54
8
55
4
56
0
56
6
57
2
57
8
58
4
59
0
59
6
60
2
60
8
61
4
62
0
62
6
63
2
63
8
64
4
65
0
65
6
66
2
66
8
67
4
68
0
68
6
69
2
69
8
Frequency/Channels (MHz)
Re
cie
ve
dP
ow
er
(d
Bm
)
Philips WSD Spurious Energy
Figure 4.  Philips WSD Spurious Emissions at 3m.
H-12
-140
-130
-120
-110
-100
-90
51
2
51
8
52
4
53
0
53
6
54
2
54
8
55
4
56
0
56
6
57
2
57
8
58
4
59
0
59
6
60
2
60
8
61
4
62
0
62
6
63
2
63
8
64
4
65
0
65
6
66
2
66
8
67
4
68
0
68
6
69
2
69
8
Channels Detected as Occupied in Anechoic Chamber: 22,23,24,25,26,27,29,30,31,32,34(1/3),35,36,
37,38,39(1/3),40,41,43,45,46,47,48,50,51
ch
46
Clean Signal
Detection
Threshold
Range
ch
51
ch
50
ch
49
ch
47
ch
43
ch
41
ch
39
ch
37
ch
35
ch
33
ch
31ch
30
ch
29
ch
27
ch
26
ch
25
ch
24
ch
23ch
22
Frequency, MHz (displayed in 6-MHz channels)
Re
ce
ive
dP
ow
er
in
10
kH
zR
BW
,d
Bm
Philips WSD #1 Spurious Output at 1-meter
Figure 5. Philips Spurious Emissions at 1-meter Correlated with TV Channels.