List of Decca frequencies
This list of Decca frequencies indicates the frequencies of the main and secondary transmitters of the 63 possible Decca chains of the Decca navigation system , as well as the basic frequency of the respective Decca chain.
| Frequencies of the main transmitter (in kHz; English master frequency ) | ||||||
|---|---|---|---|---|---|---|
| A. | B. | C. | D. | E. | F. | |
| 0 | 84,100 | 84.105 | 84.110 | 84.190 | 84.195 | 84,200 |
| 1 | 84.275 | 84.280 | 84.285 | 84.365 | 84,370 | 84.375 |
| 2 | 84.455 | 84,460 | 84.465 | 84.545 | 84,550 | 84.555 |
| 3 | 84.640 | 84.645 | 84.650 | 84.730 | 84.735 | 84.740 |
| 4th | 84.820 | 84.825 | 84.830 | 84.910 | 84.915 | 84,920 |
| 5 | 84.995 | 85,000 | 85.005 | 85.085 | 85.090 | 85.095 |
| 6th | 85.175 | 85.180 | 85.185 | 85.265 | 85.270 | 85.275 |
| 7th | 85,360 | 85.365 | 85,370 | 85,450 | 85.455 | 85,460 |
| 8th | 85.540 | 85.545 | 85,550 | 85.630 | 85.635 | 85.640 |
| 9 | 85.715 | 85.720 | 85.725 | 85,805 | 85.810 | 85.815 |
| 10 | 85.895 | 85,900 | 85.905 | N / A | N / A | N / A |
Example: the main transmitter of the "English chain" (5B) transmits at 85,000 kHz (field with a yellow background).
In each column the frequency increases by 180 Hz (+/- 5 Hz) per line. In each row, the frequency increases by 5 Hz per column, but the frequency increases by 80 Hz between columns C and D. There are a total of 63 different frequencies for the main channels. Decca chains that are far apart and therefore cannot be received at the same time can use the same frequency.
| Frequency map of the Decca navigation system (in kHz) | ||||||
|---|---|---|---|---|---|---|
| Identifier | Base frequency 1f |
Purple 6f |
Master 6f |
Red 8f |
Orange 8,2f |
Green 9f |
| 0A | 14.01667 | 70.0833 | 84.1000 | 112.1333 | 114.9367 | 126.1500 |
| 0B | 14.01750 | 70.0875 | 84.1050 | 112.1400 | 114.9435 | 126.1575 |
| 0C | 14.01833 | 70.0917 | 84.1100 | 112.1467 | 114.9503 | 126.1650 |
| 0D | 14.03167 | 70.1583 | 84.1900 | 112.2533 | 115.0597 | 126.2850 |
| 0E | 14.03250 | 70.1625 | 84.1950 | 112.2600 | 115.0665 | 126.2925 |
| 0F | 14.03333 | 70.1667 | 84.2000 | 112.2667 | 115.0733 | 126.3000 |
| 1A | 14.04583 | 70.2292 | 84.2750 | 112.3667 | 115.1758 | 126.4125 |
| 1B | 14.04667 | 70.2333 | 84.2800 | 112.3733 | 115.1827 | 126.4200 |
| 1C | 14.04750 | 70.2375 | 84.2850 | 112.3800 | 115.1895 | 126.4275 |
| 1D | 14.06083 | 70,3042 | 84.3650 | 112.4867 | 115.2988 | 126.5475 |
| 1E | 14.06167 | 70,3083 | 84.3700 | 112.4933 | 115,3057 | 126.5550 |
| 1F | 14.06250 | 70.3125 | 84.3750 | 112.5000 | 115.3125 | 126.5625 |
| 2A | 14.07583 | 70.3792 | 84.4550 | 112,6067 | 115.4218 | 126.6825 |
| 2 B | 14.07667 | 70.3833 | 84.4600 | 112.6133 | 115.4287 | 126.6900 |
| 2C | 14.07750 | 70.3875 | 84.4650 | 112.6200 | 115.4355 | 126.6975 |
| 2D | 14.09083 | 70.4542 | 84.5450 | 112.7267 | 115.5448 | 126.8175 |
| 2E | 14.09167 | 70.4583 | 84.5500 | 112.7333 | 115.5517 | 126.8250 |
| 2F | 14.09250 | 70.4625 | 84.5550 | 112.7400 | 115.5585 | 126.8325 |
| Identifier | Base frequency 1f |
Purple 6f |
Master 6f |
Red 8f |
Orange 8,2f |
Green 9f |
| 3A | 14.10667 | 70.5333 | 84.6400 | 112.8533 | 115.6747 | 126.9600 |
| 3B | 14.10750 | 70.5375 | 84.6450 | 112.8600 | 115.6815 | 126.9675 |
| 3C | 14.10833 | 70.5417 | 84.6500 | 112.8667 | 115.6883 | 126.9750 |
| 3D | 14.12167 | 70,6083 | 84.7300 | 112.9733 | 115.7977 | 127.0950 |
| 3E | 14.12250 | 70.6125 | 84.7350 | 112.9800 | 115.8045 | 127.1025 |
| 3F | 14,12333 | 70.6167 | 84.7400 | 112.9867 | 115.8113 | 127.1100 |
| 4A | 14,13667 | 70.6833 | 84.8200 | 113.0933 | 115.9207 | 127.2300 |
| 4B | 14.13750 | 70.6875 | 84.8250 | 113.1000 | 115.9275 | 127.2375 |
| 4C | 14,13833 | 70.6917 | 84.8300 | 113.1067 | 115.9343 | 127.2450 |
| 4D | 14.15167 | 70.7583 | 84.9100 | 113.2133 | 115.9343 | 127.3650 |
| 4E | 14,15250 | 70.7625 | 84.9150 | 113.2200 | 116.4751 | 127.3725 |
| 4F | 14,15333 | 70.7667 | 84.9200 | 113.2267 | 116.0573 | 127.3800 |
| 5A | 14.16583 | 70.8292 | 84.9950 | 113.3267 | 116.1598 | 127.4925 |
| 5B | 14,16667 | 70.8333 | 85.0000 | 113.3267 | 116.1667 | 127.5000 |
| 5C | 14,16750 | 70.8375 | 85.0050 | 113.3400 | 116.1735 | 127.5075 |
| 5D | 14,18083 | 70.9042 | 85.0850 | 113.4467 | 116.2828 | 127.6275 |
| 5E | 14.18167 | 70.9083 | 85.0900 | 113.4533 | 116.2897 | 127.6350 |
| 5F | 14,18250 | 70.9125 | 85.0950 | 113.4600 | 116.2965 | 127.6425 |
| Identifier | Base frequency 1f |
Purple 6f |
Master 6f |
Red 8f |
Orange 8,2f |
Green 9f |
| 6A | 14,19583 | 70.9792 | 85.1750 | 113.5667 | 116,4058 | 127.7625 |
| 6B | 14,19667 | 70.9833 | 85.1800 | 113.5733 | 116.4127 | 127.7700 |
| 6C | 14,19750 | 70.9875 | 85.1850 | 113.5800 | 116.4195 | 127.7775 |
| 6D | 14.21083 | 71.0542 | 85.2650 | 113.6867 | 116.5288 | 127.7775 |
| 6E | 14.21167 | 71.0583 | 85.2700 | 113.6933 | 116.5357 | 127.9050 |
| 6F | 14.21250 | 71.0625 | 85.2750 | 113.7000 | 116.5425 | 127.9125 |
| 7A | 14.22667 | 71.1333 | 85.3600 | 113.8133 | 116.6587 | 128.0400 |
| 7B | 14.22750 | 71.1375 | 85.3650 | 113.8200 | 116.6655 | 128.0475 |
| 7C | 14.22833 | 71.1417 | 85.3700 | 113.8267 | 116.6723 | 128.0550 |
| 7D | 14.24167 | 71.2083 | 85.4500 | 113.9333 | 116.7817 | 128.0550 |
| 7E | 14.24250 | 71.2125 | 85.4550 | 113.9400 | 116.7885 | 128.1750 |
| 7F | 14.24333 | 71.2167 | 85.4600 | 113.9467 | 116.7953 | 128.1900 |
| 8A | 14.25667 | 71.2833 | 85.5400 | 114.0533 | 116.9047 | 128.3100 |
| Identifier | Base frequency 1f |
Purple 6f |
Master 6f |
Red 8f |
Orange 8,2f |
Green 9f |
| 8B | 14.25750 | 71.2875 | 85.5450 | 114.0600 | 116.9115 | 128.3175 |
| 8C | 14.25833 | 71.2917 | 85.5500 | 114.0667 | 116.9183 | 128.3250 |
| 8D | 14.27167 | 71.3583 | 85.6300 | 114.1733 | 117.0277 | 128.4450 |
| 8E | 14.27250 | 71.3625 | 85.6350 | 114.1800 | 117.0345 | 128.4525 |
| 8F | 14.27333 | 71.3667 | 85.6400 | 114.1867 | 117.0413 | 128.4600 |
| 9A | 14.28583 | 71.4292 | 85.7150 | 114.2867 | 117.1438 | 128.5725 |
| 9B | 14.28667 | 71.4333 | 85.7200 | 114.2933 | 117.1507 | 128.5800 |
| 9C | 14.28750 | 71.4375 | 85.7250 | 114.3000 | 117.1575 | 128.5875 |
| 9D | 14,30083 | 71.5042 | 85.8050 | 114.4067 | 117.2668 | 128.7075 |
| 9E | 14.30167 | 71.5083 | 85.8100 | 114.4133 | 117.2737 | 128.7150 |
| 9F | 14.30250 | 71.5125 | 85.8150 | 114.4200 | 117.2805 | 128.7225 |
| 10A | 14.31583 | 71.5792 | 85.8950 | 114.5267 | 117.3898 | 128.8425 |
| 10B | 14.31667 | 71.5833 | 85.9000 | 114.5333 | 117.3967 | 128.8500 |
| 10C | 14.31750 | 71.5875 | 85.9050 | 114.5400 | 117.4035 | 128.8575 |
| 10D | N / A | N / A | N / A | N / A | N / A | N / A |
| 10E | N / A | N / A | N / A | N / A | N / A | N / A |
| 10F | N / A | N / A | N / A | N / A | N / A | N / A |