Low-cost software defined radio (RTL2832 SDR) community

Just getting started learning more about radio and putting my SDR to use so please forgive my basic understanding. I found the rtl-sdr blog on receiving Meteor and NOAA wx sat transmissions and decided to give it a go. I built a crude v-dipole as close to the specs as I could manage, set up WxTrack to get positioning and timing of passes, and set up my SDR# to the correct frequency. My first attempt failed, so I rebuilt the v-dipole using a wood block since the choc block I had was too loose. The wooden version could be mounted on a homemade mast I build using a cast-iron pipe. The second attempt succeeded, sort of. My question is what can I do to improve the signal strength and quality from just using a 20ft RG-6 coax to a 5-inch F-Type to SMA adapter to my RTL-SDR? I had it mounted on a 12ft mast. It wasn’t high enough to clear the roof completely, but it gave me roughly 90-100 degrees of clear horizon to work with.

Link to the short video of my setup and signal quality

Crude V-DipoleCrude V-Dipole Closeup

NOAA Sample

WxToImg (My Recording)