Ask HN: Do You Have a Photoblog?
2 pointsby djbeadle0 comments
You should try to build your own loop antennas. If you do not have the possibillity to place a coaxial antenna, frame antenna, or loop antenna in your garden you can also use our feritte rod antennas. If you order ferrite rod antennas, please order two. The antennas are mached each other. Two ferrite rod antennas are sufficient. A third ferrite rod antenna is mainly used for experiments or for improving the all-around reception characteristic (3 x 60 degrees).
The LTC1569CS8-7 filter ICs are also mainly used for experiments. You should always try it first without filter ICs. Be aware that you will need one filter IC per channel. Since the digital filter ICs are very expensive in Germany, we no longer offer these filter ICs. You can order the them yourself in China, for example at aliexpress.com. The digital filters allow to filter out a noise signal with a frequency of 80 kHz or higher. Such interfering signals often exist near long-wave transmitters.