Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p145
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 425412–428327

less (better) than –150 dBm/Hz anywhere within the frequency range exceeding 43.5 GHz but not exceeding 90 GHz;
3. "Signal analysers" having a frequency exceeding 90 GHz;
4. "Signal analysers" having all of the following:
3. A. 002. c. 4. a. 'Real‑time bandwidth' exceeding 170 MHz; and
b. Having any of the following:
                     1. 100% probability of discovery, with less than a 3 dB reduction from full amplitude due to gaps or windowing effects, of signals having a duration of 15 µs or less; or
                     2. A 'frequency mask trigger' function with 100% probability of trigger (capture) for signals having a duration of 15 µs or less;
                  Technical Notes:
                     1. For the purposes of 3A002.c.4.a., 'real-time bandwidth' is the widest frequency range for which the analyser can continuously transform time-domain data entirely into frequency-domain results, using a Fourier or other discrete time transform that processes every incoming time point, without a reduction of measured amplitude of more than 3 dB below the actual signal amplitude caused by gaps or windowing effects, while outputting or displaying the transformed data.
                     2. For the purposes of 3A002.c.4.b.1., probability of discovery is also referred to as probability of intercept or probability of capture.
                     3. For the purposes of 3A002.c.4.b.1., the duration for 100% probability of discovery is equivalent to the minimum signal duration necessary for the specified level measurement uncertainty.
                     4. For the purposes of 3A002.c.4.b.2., a 'frequency mask trigger' is a mechanism where the trigger function is able to select a frequency range to be triggered on as a subset of the acquisition bandwidth while ignoring other signals that may also be present within the same acquisition bandwidth. A 'frequency mask trigger' may contain more than one independent set of limits.
                   Note: 3A002.c.4. does not apply to those "signal analysers" using only constant percentage bandwidth filters (also known as octave or fractional octave filters).
5. Not used;
3. A. 002. d. Signal generators having any of the following:
1. Specified to generate pulse‑modulated signals having all of the following, anywhere within the frequency range exceeding 31.8 GHz but not exceeding 37 GHz:
a. 'Pulse duration' of less than 25 ns; and
b. On/off ratio equal to or exceeding 65 dB;
2. An output power exceeding 100 mW (20 dBm) anywhere within the frequency range exceeding 43.5 GHz but not exceeding 90 GHz;
3. A. 002. d. 3. A "frequency switching time" as specified by any of the following:
a. Not used;
b. Less than 100 µs for any frequency change exceeding 2.2 GHz within the frequency range exceeding 4.8 GHz but not exceeding 31.8 GHz;
c. Not used;
d. Less than 500 µs for any frequency change exceeding 550 MHz within the frequency