[greggold]

Hi Greg
A few times I remember my FRsky X6R with Horus10x having a very brief LOS at the recovery of a inverted spin. 
All fine now since changing to PCB RX antennas and a Taranis 2019.
srl

I was thinking spinning was somehow causing a signal problem, but the more logs I look at seem to make full throttle look a more likely culprit. Note in my Slick logs there is no suggestion of loss of signal, just the tx power jumps, and an indication that there was reduced signal to noise. In the Jun 6 log at 153 sec there is a reduction in RSNR to 6 (from 10), and this corresponds with use of high throttle at that point.  But the esc is nowhere near the rx, so could the esc generate some interference?  I am confident the slick has no radio signal problem, the radio performance is nominal.

The other point is that the dyn pwr jumps are infrequent, and only occur when I am performing blenders or similar. I am continuing to collect and review logs and will try to define the frequency of dyn pwr jumps. I know they are rarer in my T12 tx (which has a base power of 25 mw) than in my T16 tx (base power 10). I would like to set the T16 base power to 25, but that would mean turning dyn power off (AFAIK). In some of his gliders Mike Shellim turns off dyn pwr and sets tx pwr to 50 mw.

However my T16 (with dyn pwr on and base power 10mw) has not lost signal in any (of the some 90) recent log flights.

I had a signal loss in my Frsky Tandem and an R10 rx, which I  discussed on RCG in the "FrSky - X20, X20S, X20HD, X20 Pro Tandem - 24 Channels with ETHOS"  thread in posts (#24717, #24738, #24760) about a data log in my CrackYak plane, and subsequent responses by Landru (#24746) and some others. I only discovered the signal loss when I studied the logs, but subsequently I experienced a transient loss in a blender. Any signal loss shows clearly on the logs. The cause here was bad orientation of the two 2.4ghz antennas (which I learned are sleeve dipole antennas; I clearly do not understand antennas well) and one 900mhz antenna on the R10 rx. After adjusting the antennas - in line with some good advice - there has been no problem and the logs are now clear. This example shows how logging can help model setup and antenna installation.

[url=https://www.rcgroups.com/forums/showthread.php?3703807-FrSky-X20-X20S-X20HD-X20-Pro-Tandem-24-Channels-with-ETHOS][/url]

btw I do not know the story on PCB antennas. The single antenna and dual antenna matek elrs rxs I mostly use have sleeve dipole antennas.