SWRA670A April 2020 – October 2022 CC1350 , CC1352P , CC1352R , CC2400 , CC2420 , CC2430 , CC2500 , CC2520 , CC2530 , CC2538 , CC2540 , CC2541 , CC2543 , CC2544 , CC2545 , CC2564 , CC2590 , CC2591 , CC2592 , CC2620 , CC2630 , CC2640 , CC2650 , CC2652P , CC2652R , CC2652R7 , CC2652RSIP , CC3100 , CC3120 , CC3135 , CC3135MOD , CC3200 , CC3200MOD , CC3220MOD , CC3220MODA , CC3220R , CC3220S , CC3220SF , CC3230S , CC3230SF , CC3235MODAS , CC3235MODASF , CC3235MODS , CC3235MODSF , CC3235S , CC3235SF , WL1801MOD , WL1805MOD , WL1807MOD , WL1831
Transmitter unwanted emissions within the 5 GHz RLAN bands are defined as the radio frequency emissions within the 5 GHz RLAN bands (5150 MHz to 5350 MHz and 5470 MHz to 5725 MHz), when the equipment is in transmit mode.
The limits for transmitter unwanted emissions within the 5 GHz RLAN bands are shown in Table 6-8.
In case of smart antenna systems (devices with multiple transmit chains), each of the transmit chains should meet the spectral mask limits provided in Table 6-8. The spectral mask limits are also shown in Figure 6-1.
For transmitter unwanted emissions within the 5 GHz RLAN bands, simultaneous transmissions in adjacent channels may be considered as one signal with an actual Nominal Channel Bandwidth of "n" times the individual Nominal Channel Bandwidth, where "n" is the number of adjacent channels used simultaneously.
For simultaneous transmissions in multiple non-adjacent channels, the overall transmit spectral power mask is constructed in the following manner. First, a mask as provided in Table 6-8 is applied to each of the channels. Then, for each frequency point, the greatest value from the spectral masks of all the channels assessed should be taken as the overall spectral mask requirement at that frequency.
In case of equipment with antenna connectors, these limits apply to emissions at the antenna port (conducted). For emissions radiated by the cabinet or emissions radiated by integral antenna equipment (without antenna connectors), these limits are e.r.p. for emissions up to 1 GHz and e.i.r.p. for emissions above 1 GHz.
Frequency relative to the Center of the Channel | Limits | ||
---|---|---|---|
Relative spur level to the Maximum Power Density in 1MHz Bandwidth, dBc/MHz | Absolute Spur level of the Power Density in 1MHz Bandwidth, dBm/MHz | Requirement | |
From < ((-10.8)*N) to (-10.8)*N | <= -47 | <= -30 | should not exceed either Relative level or an Absolute level, whichever is greater. |
From ((-10.8)*N ) to (-9*N) | <= -42 | <= -30 | |
From (-9*N ) to (-1.5*N) | <= -40 | <= -30 | |
At -1*N | <= -28 | <= -30 | |
At -0.55*N | <= -20 | <= -30 | |
At -0.50*N | 0 | ||
From (-0.5*N) to (0*N) | 0 | ||
At 0*N | 0 (Reference Level) | ||
From (0*N) to (0.5*N) | 0 | ||
At +0.50*N | 0 | ||
At +0.55*N | <= -20 | <= -30 | |
At +1*N | <= -28 | <= -30 | |
From (1.5*N ) to (9*N) | <= -40 | <= -30 | |
From (9*N ) to ((10.8)*N) | <= -42 | <= -30 | |
From > ( (10.8)* N ) to (10.8)* N | <= -47 | <= -30 | |
N = Nominal Channel Bandwidth in MHz |