The following list is rather old, however, it wont be outdated as long as we keep out frequency bands.
Crystals for QRP and homebrew
The presented lowcost standart crystal frequencies are selected for the usage in superheterodyne sideband transceivers (receivers). For extension to this list, look at 7N3WVM's homepage. Makoto, in addition to his list, shows a block diagram for superhets, and provides excellent information about VXOs. The frequencies in this list need in some cases multiplification with a given factor M. The intermediate frequency if is shown for superhet designs. Crystals for the intermediate frequency have to be fundametals for easy to build SSB/CW ladder filters. Where the frequency multiplication factor equals 1 you might swap VXO and filter frequencies, depending on your junk-box/requirements.
| HAM band | VXO [MHz] | M | if [MHz] | QRG [MHz] |
| 160m | 9.8304 | 1 | 8.000 | 1.830 |
| 80m | 6.000 | 1 | 2.4576 | 3.542 |
| 6.400 | 1 | 2.4576 | 3.942 (*) | |
| 8.000 | 1 | 4.4336 | 3.566 | |
| 8.000 | 1 | 4.500 | 3.500 | |
| 8.867238 | 1 | 5.0688 | 3.798 | |
| 9.8304 | 1 | 6.000 | 3.830 (*) | |
| 9.8304 | 1 | 6.144 | 3.686 | |
| 10.000 | 1 | 6.400 | 3.600 | |
| 11.000 | 1 | 7.3278 | 3.627 | |
| 11.0592 | 1 | 7.3278 | 3.686 | |
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14.7456 | 1 | 11.000 | 3.746 |
| 22.1184 | 1 | 18.4321 | 3.686 | |
| 40m | 4.000 | 1 | 3.2768 | 7.277 (*) |
| 4.9152 | 1 | 2.097152 | 7.012 | |
| 4.608 | 1 | 2.4576 | 7.066 | |
| 5.0688 | 1 | 2.000 | 7.069 | |
| 11.059 | 1 | 4.000 | 7.059 (++) | |
| 12.000 | 1 | 4.91403 | 7.086 | |
| 17.73447 | 1 | 10.700 | 7.035 | |
| 22.1184 | 1 | 15.000 | 7.118 | |
| 30m | 6.5536 | 1 | 3.579545 | 10.133 |
| 6.144 | 1 | 4.000 | 10.144 | |
| 7.3729 | 2 | 4.608 | 10.138 | |
| 7.3729 | 3 | 12.000 | 10.118 | |
| 14.31818 | 1 | 4.194304 | 10.124 (+) | |
| 14.7456 | 1 | 4.608 | 10.138 | |
| 22.1184 | 1 | 12.000 | 10.118 | |
| 20m | 6.400 | 5 | 17.73447 | 14.265 (?) |
| 9.8304 | 1 | 4.194304 | 14.025 (+) | |
| 6.5536 | 5 | 18.432 | 14.336 | |
| 8.000 | 1 | 6.144 | 14.144 | |
| 9.216 | 1 | 4.9152 | 14.131 | |
| 9.216 | 1 | 5.000 | 14.216 | |
| 9.000 | 1 | 5.0688 | 14.0688 | |
| 9.005 (**) | 1 | 5.0688 | 14.074 | |
| 9.216 | 1 | 5.0688 | 14.285 | |
| 9.216 | 1 | 5.120 | 14.336 (+++) | |
| 9.8304 | 1 | 4.4336 | 14.263 | |
| 10.000 | 1 | 4.000 | 14.000 | |
| 10.000 | 1 | 4.096 | 14.096 | |
| 10.000 | 1 | 4.194304 | 14.194 (+) | |
| 11.000 | 1 | 3.2768 | 14.277 | |
| 9.216 | 1 | 4.9152 | 14.131 | |
| 11.0592 | 1 | 3.2768 | 14.336 | |
| 16.000 | 1 | 1.8432 | 14.157 | |
| 17.73447 | 1 | 3.579545 | 14.155 | |
| 22.1184 | 1 | 8.000 | 14.118 | |
| 24.000 | 1 | 9.8304 | 14.170 | |
| 17m | 12.000 | 1 | 6.144 | 18.144 |
| 14.000 | 1 | 4.096 | 18.096 | |
| 22.000 | 1 | 3.9321 | 18.068 | |
| 22.1184 | 1 | 4.000 | 18.118 | |
| 15m | 6.400 | 5 | 10.700 | 21.300 |
| 6.5536 | 2 | 8.000 | 21.107 | |
| 8.000 | 2 | 5.0688 | 21.069 | |
| 16.000 | 1 | 5.0688 | 21.069 | |
| 6.5536 | 4 | 5.0688 | 21.146 | |
| 7.3728 | 2 | 6.5536 | 21.298 | |
| 14.31818 | 2 | 7.3728 | 21.264 | |
| 14.7456 | 1 | 6.400 | 21.146 | |
| 14.7456 | 1 | 6.5536 | 21.299 | |
| 25.000 | 1 | 3.9321 | 21.068 | |
| 25.000 | 1 | 3.6864 | 21.313 | |
| 15.360 | 1 | 6.000 | 21.360 (+++) | |
| 25.000 | 1 | 3.579646 | 21.420 | |
| 12m | 10.000 | 2 | 4.9152 | 24.915 |
| 30.000 | 1 | 5.0688 | 24.931 | |
| 20.000 | 1 | 4.9152 | 24.915 | |
| 10m | 6.144 | 5 | 2.4576 | 28.262 |
| 6.144 | 3 | 9.8304 | 28.262 | |
| 6.144 | 3 | 10.000 | 28.432 | |
| 6.5536 | 2 | 15.360 | 28.465 | |
| 6.400 | 3 | 8.867238 | 28.067 | |
| 6.400 | 3 | 9.216 | 28.416 | |
| 6.5526 | 3 | 8.867238 | 28.538 | |
| 6.5526 | 5 | 4.433619 | 28.334 | |
| 22.1184 | 1 | 6.000 | 28.118 | |
| 16.384 | 1 | 12.000 | 28.384 | |
| 6m | 8.867238 | 5 | 6.144 | 50.479 |
| 9.216 | 5 | 5.0688 | 51.149 | |
| 9.216 | 6 | 5.0688 | 50.227 | |
| 9.216 | 6 | 5.000 | 50.296 | |
| 9.216 | 6 | 4.9152 | 50.381 | |
| 14.7456 | 4 | 8.867238 | 50.115 | |
| 18.432 | 3 | 5.0688 | 50.227 | |
| 18.432 | 3 | 5.000 | 50.296 | |
| 18.432 | 3 | 4.9152 | 50.381 | |
| 60.000 | 1 | 9.216 | 50.784 | |
| 60.000 | 1 | 8.867 | 51.133 | |
| 60.000 | 1 | 9.8304 | 50.170 | |
| 14.000 |
2 | 22.1184 | 50.118 | |
| 2m | 14.000 | 10 | 4.000 | 144.000 |
| 14.000 | 10 | 4.096 | 144.096 | |
| 14.000 | 10 | 4.194 | 144.194 (+) | |
| 9.216 | 15 | 6.000 | 144.240 | |
| 9.216 | 15 | 6.144 | 144.384 | |
| 17.73447 | 8 | 2.4576 | 144.333 | |
| 8.867238 | 16 | 2.4576 | 144.333 | |
| 14.7456 | 10 | 3.2768 | 144.179 |
(**) CB-crystal 27.015 MHz
(+) here is a mixer xtal available at 4.194812 MHz
(++) combination found by Juanjo - EC5ACA
(+++) combination found by Klaas - PE1MJZ
(?) questionable, intermediate frequency rather high
This list cannot be complete, and it is not claimed to be complete. If you feel the wish to respond, add new xtal-pairs, or send donations ... please do not hesitate to do so. But, remember that those crystals should be really inexpensive.
