Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Fig. 6.

Fig. 7.

Frequency measurement experiment results_
| The measured frequency [MHz] | Measurement results [Hz] | Frequency differences [Hz] | Frequency uncertainty [at 1 s] |
|---|---|---|---|
| 2.397 | 2396999.751 | 0.316 | 4.17 × 10−13 |
| 10.354 | 10353999.173 | 0.836 | 2.12 × 10−13 |
| 11.260 | 11259997.522 | 0.461 | 3.24 × 10−13 |
| 11.713 | 11712997.238 | 0.623 | 4.25 × 10−13 |
| 12.071 | 12070997.334 | 0.772 | 3.27 × 10−13 |
| 12.880 | 12879996.872 | 0.128 | 2.32 × 10−13 |
| 12.125 | 12124996.773 | 0.232 | 2.81 × 10−13 |
| 13.160 | 13159996.576 | 0.459 | 4.31 × 10−13 |
| 15.312 | 15311996.243 | 0.756 | 2.23 × 10−13 |
| 15.694 | 15693996.236 | 0.714 | 2.17 × 10−13 |
| 16.384 | 16383999.722 | 0.230 | 2.38 × 10−13 |
| 18.023 | 18022996.334 | 0.778 | 5.03 × 10−13 |