Hey Jeff, and TRF...
I've finally had an oppurtunity to look at this.
Jeff's email to me yesterday mentioned he observed deployment "lower" than what was set via DIP switch:
"I flew my RRC2+ about 3 weeks ago with stock settings.
The main deployed a little lower than expected.
I checked the settings and the dip switches are correct. It looked like 300 ft not 500. "
Also Jeff, your post here:
"Mine was printed as if the 500 ft is default.
When actually it is set stock at 300 ft."
This is all true and correct...
The User Manual and silkscreened legend on the PCB also concur with this:
View attachment 168071
Here's the code snippets (which also concur) as well for everyone's review:
// DIP3 assignment
if (DIP3_OFF)
{
// 300' Main
Setpoints.MainElevation = 3;
}
else
{
// 800' Main
Setpoints.MainElevation = 8;
}
// DIP4 assignment
if (!DIP4_OFF)
{
// +200' for Main
Setpoints.MainElevation += 2;
}
I believe the anecdotal observation of a "1-off" lower than expected deployment was due to ambient conditons at the "near sea level" launch site.
My reply to you yesterday Jeff:
"If you can ascertain the ambient pressure conditions for your launch day at your location we can see how far off this could skew the AGL calculations.
Lower pressures can do this, especially when flying at virtual "sea-level" elevation."
We ship them with all the DIP switches OFF, so the unit has a 300' AGL default for Main.
Can you snap a close-up pic of this altimeter legend, Jeff?
Perhaps the silk-screening got smeared or did not set up properly.