DPD ADS-B Vertical Outdoor Base Antenna

[rwy24r]

Weather is a little better, humid as hell but no rain. Performance is back up, coverage seems better. Seeing traffic over Maine again.

 

[Richard Lee]

I've got too many planes in too close.. Maybe desensitization is setting in..
No, it's the weather north and east.. Still very wet..

 

[rwy24r]

One hit at 210nm this afternoon, not for very long.

 

[rwy24r]

Today I tested with a much shorter high quality USB cable between the SBS unit and the PC. Seems to have improved some reception quality.

 

[Richard Lee]

I have not heard of RFI coming from USB cables. But, Google says:
https://www.intel.com/content/www/u...al-bus/usb3-frequency-interference-paper.html
Wow!! That's USB3 getting up to the WIFI band.?.

If your 1090 Mhz receiver is picking up USB RFI into it's cables, that could be reduced by adding some ferrite cores to all the USB cables.. https://en.wikipedia.org/wiki/Ferrite_bead

If the USB RFI is really strong, it might be radiating directly to the outdoor antenna..

 

[rwy24r]

Check this out:
http://www.radioforeveryone.com/p/why-usb-cable-quality-matters.html