(a) For field strength measurements:
| Frequency band in which device operates (MHz)
| Range of frequency measurements
|
|---|
| Lowest frequency
| Highest frequency
|
|---|
| Below 1.705 | Lowest frequency generated in the device, but not lower than 9 kHz | 30 MHz.
|
| 1.705 to 30 | Lowest frequency generated in the device, but not lower than 9 kHz | 400 MHz.
|
| 30 to 500 | Lowest frequency generated in the device or 25 MHz, whichever is lower | Tenth harmonic or 1,000 MHz, whichever is higher.
|
| 500 to 1,000 | Lowest frequency generated in the device or 100 MHz, whichever is lower | Tenth harmonic.
|
| Above 1,000 | ......do | Tenth harmonic or highest detectable emission. |
(b) For conducted powerline measurements, the frequency range over which the limits are specified will be scanned.
[50 FR 36070, Sept. 5, 1985, as amended at 51 FR 17971, May 16, 1986]