From reading this thread, it sounds like almost any antenna can pick up the Altus Metrum GPS data packets during descent (7, 5, 3-element yagi directional down to simple whip).
Has anyone ever had an issue in flight from "too much" directionality on the 5 or 7-element yagi's and loosing telemetry due to misaiming the antenna?
For context, I'm flying to the 5-15K' range and using a DIY 5-element yagi on a TeleBT to get data from a TeleGPS. The problem is that I am always stressed about potentially misaiming the yagi and loosing the signal after I have already lost visual tracking (no longer have youthful eyes).
Am I being silly and overly worried, or would I be better off "downgrading" to something less directional like a 3-element or even a high-quality whip for the antenna on the TeleBT? Yes, in theory, I can listen to the directions from the phone app to know where to point, but I am hoping to do less mental processing in the middle of flights so I can just enjoy the moment.
I guess another way to ask this... what is the margin for error on aiming (in terms of degrees) on a 7, 5, or 3-element yagi and still catching data packets?