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It’s not clear if the sine wave would be an issue or not.īelow you can see the HackRF One and beside it the Si5338 Evaluation Board. We caution consumers that it is against the law to use a cell or GPS jammer or any other type of device that blocks, jams or interferes with authorized communications, as well as to import, advertise. The output levels of my GPS are not correct for the HackRF. Below is a photo of the HackRF One hardware used in the first attack and linked above. Another advantage is that the output of the Si5338 is square wave and this is precisely what the HackRF needs (in some cases if you sine wave is at the appropriate voltage levels, you can feed this directly to the CLKIN of the HackRF). Ironically in this case, we are simply generating a 10MHz output but this output is “locked” to the input and so will behave with the same frequency changes, which luckily for us is very minimal if you are using an external GPS as the reference.
Hackrf one gps input generator#
The Si5338 is a programmable clock generator that can take an input reference clock (like a 10MHz sine wave from a GPS) and then generate any output frequency with a variety of different output driver types. The HackRF One is a Software Defined Radio (SDR) device with the ability to digitize radio signals that are received or transmitted by the device. Using the Si5338 clock generator from Silicon Laboratories is an easy way to address the problem (if it’s really a problem for your application). gps jammer with hackrf imsi Lind pa1540-201 g automobile power adapter15v 4.0a used 12-16v.baknor bk 3500-b3345pip ac adapter 3vdc 500ma used 1x2.2x9.7mm,asus ad59230 ac adapter 9.5vdc 2.
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The HackRF One SDR is a great value but it’s frequency stability leaves something to be desired.