I'm FCC certifying as an "intentional radiator" a product that uses a custom antenna and off the shelf Broadcom WiFi module. The module has an antenna port, so single-modular and limited single-modular certification are out of the question. I have manual transmitter control, through specialized vendor firmware.
My FCC lab is shuddering at the number of test passes, which are some combinations of:
- Two bands (2.4Ghz and 5Ghz)
- Eight protocols (802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, Bluetooth, BTLE)
- Six modulation techniques (FHSS DSSS OFDM HR-DSSS 256-QUAM CKM) at various data rates from 1 to 54 Mbps.
- Two channel pairings (20 Mhz, 40 Mhz)
- Three regulatory regions (US/Canada, Japan, Europe).
- Bluetooth in three modes.
- DFS (Dynamic Frequency Selection) in the 5Ghz band to avoid radar.
Each test takes about two minutes of stunningly boring waiting, then manual set up of the next band/speed combination.
Is it permissible to use software to sweep each of the data rates (say at one rate per second) and check for out of band exceedances during that time period?
Are there other techniques to speed this process up? See also How do I cycle a WiFi transmitter through all modes, for FCC intentional radiator EMC testing?