Search Length (802.11n/ac/ax/be)
specifies the length of time to acquire the input signal (in seconds). This defines the length of time that the pulse search is performed. For 802.11n/ac, the number of symbols is calculated and displayed to the right of the search length. For 802.11ax/be, the number of symbols is not displayed because the symbol lengths vary in each part of the HE/EHT PPDU PLCP Protocol data unit.
Default: 2 mSec
The VSA searches within the specified and demodulates the first complete pulse (or burst) found. The pulse can occur anywhere within the search length. Pulses beyond the first complete pulse are disregarded and are not demodulated. In order for the pulse search algorithm to detect a pulse edge, the pulse must be at least 15 dB above the noise floor. The resultant pulse is then demodulated.
Longer pulse lengths increase the measurement time, but make it more likely that a pulse will be found. If a pulse is not found, a PULSE NOT FOUND trace indicator is displayed.
See Also
