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1. Wxtoimg image shifting for free#
2. Wxtoimg image shifting how to#
3. Wxtoimg image shifting portable#
4. Wxtoimg image shifting software#

That’s why I first decided on a location in my city Lviv. But I interested is it possible to successfully obtain images within the big city, somewhere in an open location. Radio amateurs from all over the world, who record the same signal just because of curiosity (like me), or using their own “weather” stations, use special QFH antennas, which are placed in open areas or on the roofs of their homes.

Signal was pretty good, but an image in result contained a huge amount of noise. Now practice! I will record signal from the NOAA weather satellites using an RTL-SDR receiver, LNA, FM radio frequencies filter, and basic dipole antenna from the RTL-SDR dipole antenna kit.įirst, a kind of successful attempt to record this signal I got straight from my apartment. With such a filter, the receiver will be not “overloaded” by powerful signals and will better recognize signals at nearby frequencies, in particular the APT signal frequencies of NOAA satellites – 137 MHz. This amplifier will significantly improve reception quality, which will give ability to reduce the level of internal amplification, and with it the noise level.Īlso, if you live in a city with powerful transmission stations or repeaters, an FM radio frequencies filter will very helpful. Additional accessoriesįor better performance, I recommend buying a Low-Noise Amplifier (LNA). Indeed, in my experience, the performance of this receiver is much better compared to its cheaper “relative”. This ensures better signal reception and more information that can be obtained from it. According to them, the board is designed better, has more stable workflow, less noise, heat dissipation, and good chip R820T/2. My second receiver is device from radio amateurs from RTL-SDR Blog.

Wxtoimg image shifting for free#

Maybe you can give it a try if find that receiver for free somewhere. Even if you just want to try SDR, this receiver is still a bad option. But this receiver has a narrower frequency range, more noise, also it badly holds set frequency and overheats quickly, which worsens the already not perfect performance. This exact model can be quite easily bought on Ali Express. Also frequency range of 22 – 948.6 MHz in the worst case (super-cheap tuner FC0012) or 24 – 1766 MHz in better case (slightly more expensive and rarer tuner R820T/2)! Opportunity to acquaint oneself with the world of radio communication for such price is very incredible. For $10 (cost of a ready-made(!) DVB-T receiver) user gets a receiver with a bandwidth of 3 MHz and no restrictions on tuning accuracy or modulation type.

Wxtoimg image shifting software#

This key fact that computer, not the chip, processes the signal, became a basis for creation of Software Defined Radio (abbreviated SDR) based on this platform and ushered in the era of RTL-SDR. Workflow of this device quite simple – built-in chip digitizes high-frequency signal, then computer and software extract desired frequency and information from it. Originally, no one guessed about other possibilities of this receiver other than digital television. Although DVB-T (not to be confused with DVB-T2) has not become widespread, the RTL2832U chip has become a real discovery for radio amateurs.

Wxtoimg image shifting portable#

Its main purpose to receive first-generation digital television broadcast on computers and portable media. But there is a very popular, and most importantly cheap device for receiving signals – DVB-T receiver with chip RTL2832U. Professional radio equipment for receiving or transmitting radio signals, like any other non-mass equipment – not cheap equipment.

Wxtoimg image shifting how to#

Today I will tell how to get a picture of the Earth from NOAA satellites within the city with a minimum set of equipment – an SDR receiver from RTL-SDR Blog and a conventional dipole antenna.