Given all the debate about TCAS-lite, I thought I’d add my experience over the last year with the Monroy Traffic Detector.
I stopped using it because (1) it didn’t tell me about very many of the real threats that I saw and/or had ATC call out to me, and (2) it gives a lot of false alerts.
I have used the BFG Skywatch a few years ago and loved it. The only annoying thing is that it has a harsh male voice. The Monroy has a good neutral female voice, which I prefer.
The Ryan TCAD calls out the position verbally, which sounds like a nice feature (the Skywatch just says “Traffic, traffic!”.)
I plan to get Skywatch as soon as the retrofit kit is available.
If anyone would like to purchase my Monroy box, I’d be happy to sell it.