250619 Radio Signals

1. Get to FM radio waves and catch signal
2. Get to corresponding signal for RF remote controlled car (RC car) (ran at 2.4 Ghz)

Software Used

Gqrx SDR

• open source software defined radio receiver (SDR)
• powered by GNU Radio

Attempted: [Trunked Radio System](https://en.wikipedia.org/wiki/Trunked_radio_system_

Hardware Used

• Hack RF
  • Could get to range, but couldn't detect signal
• RTL2832U amazon
  • Caped at 1.7 GHz, so couldn't detect signal
  • https://www.rtl-sdr.com/

NOTES:

• gnu radio
• ex: run a pager network on an island with radio in a box on an island
• posx encoding and runs a bunch of beakers

CHIPS USED:

• realtec chips - rtlsdr
• realtex rt3828 option

Amazon

• RTL-XTR
• DVV - salder an entenna

RTL2838UHIDIR

• https://www.rtl-sdr.com/
• DVB-T+DAB+FM+SDR

RTL2832U R820T2 TCX0+BIAS T+HF

• https://www.amazon.com/RTL-SDR-Blog-RTL2832U-Software-Defined/dp/B0BMKB3L47

hackerRF One Great Scott Gadgets

directional antenna

• sma or rp sma
• bigger - bnc tnc etc
• cv connector so-123

alpha - high power dongle - power limited