NRAU Contests in general
The general basic rules for the NRAU Activity Contest, also named NAC, will be published here in due time. But, at present, no formal decision is known to have been made whether this webpage should contain detailed information on the NAC, or not.
The rationale behind this hesitation is that more non-NRAU sites already cover this at present. Hopefully this will be sorted out in the very near future, so stay tuned for updated information ...
In the interim, these are the scheduled bands and days (inserts will be made to the Calendar later):
| NAC | ||
| Band | Day of the week | Comment |
| 28 MHz | 1. Thursday of the month | See 28 MHz table below ... |
| 50 MHz | 2. Thursday of the month | |
| 70 MHz | 3. Thursday of the month | |
| 144 MHz | 1. Tuesday of the month | Two classes: 144S and 144E |
| 432 MHz | 2. Tuesday of the month | Two classes: 432S and 432E |
| 1296 MHz | 3. Tuesday of the month | |
| 2.3 GHz & Up | 4. Tuesday of the month | |
Remarks:
Class 144S and 432S are Standard class, operating max 100W output as measured on the transmitter's PA.
Class 144E and 432E are Extra class, for participants using more than 100W output.
All activities takes place between 1800 and 2200 UTC in the winter, and between 1700 and 2100 UTC in the summer (due to Dayligh Saving Time, from last weekend i March to last weekend in October).
For 10m / 28MHz, the following applies (to be confirmed ...):
| Category | Mode | Time-slot | Frequency |
| A | CW | 1900 to 2000 | 28.040 ± 30 kHz |
| B | SSB | 2000 to 2100 | 28.500 ± 50 kHz |
| C | FM | 2100 to 2200 | 29.150 ± 50 kHz |
| D | MGM / Digital | 2200 to 2300 | 28.050 - 190 KHz |