BI7DDN The difference is significant: the H3 can satisfy most daily needs, with more practical features like SSTV and NOAA decoding (although I haven't personally used them), while the H2 is mainly for emergency use, such as scanning frequencies. The audio quality for recording is not very good, and the decoded SSTV recordings are distorted. Receiving SSTV from the space station is also somewhat usable.
If you really want to use it effectively, you'll still need to connect it to a computer via USB, just like with the full-powered HackRF One.
The H3's features are quite appealing, but the price difference makes it less attractive than buying a complete set of a different, higher-performing device. The HackRF One combined with a small N100 computer would be more than sufficient. The difficulty with the H2 lies in the fact that the author refuses to update its decoding capabilities for SSTV (Single Sideband Television), and it essentially functions only as a radio receiver, scanning frequencies and transmitting SSTV.Simulated GPSThe toys.
The HackRF can be used with an external power source, but according to the seller I bought it from, this device is quite delicate and requires careful handling. I accidentally short-circuited it once, and it immediately burned out a component (even though it wasn't being charged quickly).
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