[YARDStick] OOK transmission is not in the expected size

[Hakan Tolgay]

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist10.pair.net/pipermail/yardstick/attachments/20170719/248cf6c2/attachment.html>