[YARDStick] OOK transmission is not in the expected size

[Samy Kamkar]

Ensure preamble, manchester, sync word, CRC, whitening and FEC are off --
easy way is to `d.lowball(0)` first, then run your config functions, then
transmit.

On Wed, Jul 19, 2017 at 1:30 AM, Hakan Tolgay <hakantolgay at gmail.com> wrote:

>
> Hello all,
>
> I am new to the rfcat and trying to learn it via trial and error. However,
> I couldn't find an explanation for the following behavior.
>
> I have been trying to transmit some binary data such as 10101010 which is
> AA in hex. When I did that with the following commands, I observe more than
> 8 bits of data. You can find the links of both spectrum dump and the signal
> recording (as sound file) below. Please tell me what I don't know and what
> I am missing. Thanks
>
>
> sudo rfcat -r
>
> >>> d.setFreq(433000000)
> >>> d.setMdmModulation(MOD_ASK_OOK)
> >>> d.setMdmDRate(int(1.0/0.000550))
> >>> d.RFxmit("\xAA")
>
> Transmission recordings:
> https://drive.google.com/drive/folders/0BxtkZc08yz6mc0tlRS1YbjgtUEU?
> usp=sharing
>
> Thanks
> Hakan
>
>
>
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>


-- 
@SamyKamkar <https://twitter.com/samykamkar>
https://samy.pl
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