How to observe the signals of a radio remote control using CubicSDR?
It looks like 433MHz and for trace width ~0.1" ).5oz + 1oz plating. (ballpark).  The equal length at right angles prevents null patterns from end directions.

Measure antenna length for l=λ/2, compute half wave carrier f, look for 100kHz FSK more or less using \$ l=λ/2 \$  or may be limited to 25kHz BW FSK anywhere from 433.050 MHz to 434.790 MHz.  Check use in your country.

\$ f=\dfrac{1}{2∗l∗c∗\sqrt{e_{R_{eff}}}}\$ 
for c=3e8m/s e=4.5 and with estimate track width and thickness \$e{_eff}\$=2.9 approx. or less.

https://en.wikipedia.org/wiki/LPD433