ADS-B in dual band

[RVDan]

Love the ADS-B in functions.  It is just that one looses traffic when low around airports that don't have radar coverage and an ADS-R antenna on site.  Make a variant of the SV-ADSB-470 that is dual band.  Better yet, also make it an upgrade from the existing 978mhz only unit. 
Even better yet make the upgrade free   OK guess that is asking way to much.

 

[dynonsupport]

In order to see a plane with 1090 that you could not see with 978, you must:

1) Be out of a ground station range
2) That plane must be equipped with a Mode-S with ADS-B transponder, and have ADS-B activated. This is about 5% of GA aircraft in the USA right now.

Planes with just Mode A, C, or S will not appear even if you had 1090.

Dynon's ADS-B receiver is much more sensitive than the TSO requires so it can pick up a ground station farther away than coverage maps show, since they assume a base TSO device with about 15dB less sensitivity than we have.

Given all of this, you can see why we didn't think 1090 was a critical issue in the USA. The reality is that when you are out of an ADS-B coverage area, you should assume you are missing almost all the planes around you, no matter if you are single or dual band.