@TimD - you've misunderstood my comment about "dumb" . What i meant was I assume you had no appetite for SD to actively filter out EC data sent from an external source. Looks like you're saying that may not be the case, in which case my proposal changes. See below
The other nuance of course is that some people use the EC devices audio in preference to the SD one. I prefer to SD one, but it doesnt give my bearginless alerts. Hence the suggestion of SD being able to have a two way interaction with EC devices, to tell the EC device to shut up / reduce sensitivty (range/heigh) at certain stages of flight
So, not withstanding the above suggestion, of SD telling EC device to change it's output.....
If you're willing to consider a more intelligent traffic system based on phase of flight, I still think an adjustment to my original proposal still meets peoples requirements without making SD overly complex:
However, it would be great to have the following options
SD knows when you are on the ground* or can prompt to say "put me in ground mode"
SD can prompt when you're near the circuit/atz of your destination and prompt to say "put me in circuit mode"
1) In Ground Mode - No (or reduced**) audio alerts when you're "on the ground". Rationale - if i operate from an ATZ environment i'm happy to have a quick glance at skydemon but audio warnings over OTT during takeoff
2) In Circuit Mode - Reduced** audio alerts when in the circuit. I think its will be possible to do
* my speed < 20kts AND AGL<100ft for example
** reduced range and height from me versus cruise notification