Special Investigating Units and Special Tribunals Act, 1996
R 385
Electronic Communications Act, 2005 (Act No. 36 of 2005)RegulationsRegulations on the use of Television White Spaces, 20189. Operation of WSD Adjacent to a Broadcast TV Channel |
| (1) | A WSD operating adjacent to the occupied TV channels must have the out-of-band-emissions based on the adjacent channel leakage ratios (ACLRs) limits established for the WSD emission classes prescribed in Table 2 in compliance with the latest version of ETSI EN 301 598 standard, or successor directives4. |
Table 2 ACLR limits per classes of WSDs on the nth adjacent TV channel
|
WSD out-of-band power falls within the nth adjacent TV channel (per 8MHz channels) |
ACLR (dB) |
||||
|
Class 1 |
Class 2 |
Class 3 |
Class 4 |
Class 5 |
|
|
n = ± 1 |
74 |
74 |
64 |
54 |
43 |
|
n = ± 2 |
79 |
74 |
74 |
64 |
53 |
|
n ≥ + 3 or n ≤ - 3 |
84 |
74 |
84 |
74 |
64 |
| (2) | The WSD out-of-band power (EIRP) spectral density shall be measured in the first 100 kHz beyond the channel edge. |
| (3) | The WSD out-of-band power (EIRP) spectral density shall be less than or equal to the measured in-band transmit power spectral density over 8 MHz minus the ACLR (-84dBm). |
| (4) | If a WSD use channel bonding technique to transmit on multiple contiguous TVWS channels as guided by the secondary GLSD; the ACLR limits in Table 2: |
| (a) | do not apply within the bonded adjacent contiguous channels; but |
| (b) | do apply within the 8 MHz TV channel immediately adjacent below and above the edges of the bonded channels. |
______________________________
4 http://www.etsi.org/technologies-clusters/technologies/regulation-legislation/red
