Hey again; See if this sounds like it might be "it";
< http://www.gag.com/bdale/blog/posts/Batteries_and_Pyro_Circuits.html > http://www.gag.com/bdale/blog/posts/Batteries_and_Pyro_Circuits.html ^ This is generally fixed by using another pyro-only battery. By using a stout pyro battery (like a internally solder-tab constructed 9v battery : (duracell brand)) which is ONLY connected to the telemetrum. See this article: < http://altusmetrum.org/Documents/SeparatePyroBattery/index.html > http://altusmetrum.org/Documents/SeparatePyroBattery/index.html (^ There are no pictures. The links for them are in the webpage however.) Alternatively you could remove this protection circuit IF you are adventurous, AND this turns out to be the source of your "reset" issue !! : < http://altusmetrum.org/Documents/FixBattery/index.html > http://altusmetrum.org/Documents/FixBattery/index.html OR ....it could be the xmit. r.f. getting into the board issue, which is generally related to how the external (to the board) wiring is routed v/v the antenna. If your wiring is messing and not twisted you are asking for some issues even IF the above links "fix" your problem. Anyways, you are VERY correct (IMnsHO) to be making sure things are A.O.K. with plenty of ground testing. Good luck !!!! es vy 73 om de; - Bob, w9ya On Tue, Apr 8, 2014 at 7:05 PM, Tim Navickas <[email protected]> wrote: > Today I connected to the Telemetrum via USB and tried to fire the igniters. > On both the Main and Apogee firing the Telemetrum resets and goes through > the startup sequence. I assume this means I cannot use the supplied > battery to fire igniters. I am also assuming that others have used the > supplied battery to fire the igniters. Does this mean I have a bad board > now? Is there any other kind of troubleshooting I can do? I really do not > want to use this only as an expensive tracker and have to use 2 other > altimeters. > > Thanks, > Tim > > -----Original Message----- > From: Keith Packard [mailto:[email protected]] > Sent: Tuesday, April 08, 2014 4:54 AM > To: Tim Navickas; 'Bdale Garbee'; 'Altus Metrum' > Subject: Re: [altusmetrum] Telemetrum Problems > > Tim Navickas <[email protected]> writes: > > > Further information. > > > > 1. Uninstalled the software and installed version 1.2.1 all the > > windows work properly. I have a Telemetrum v1.0 unit. > > That's interesting information; I'll see if I can figure out how to make > sense of it... > > > 2. I still cannot fire an igniter. I have tried several different one > and > > every different types..When I arm it then fires it says connecting to > COM3. > > Hrm. TeleMetrum v1.0 units had some extra RF sensitivity due to a missing > capacitor as described here: > > http://www.gag.com/bdale/blog/posts/RF_Immunity.html > > Have you been trying to fire igniters via USB? Or just over the RF link? > If it's over USB, then RF can't be involved as there won't be any > transmissions from either end. > > Does the TeleMetrum reset when you try? It would beep out the startup > sequence again if it were. > > If it's only over RF, then you might send some pictures of the installation > as we may be able to suggest ways to reduce the RF problem. > > > I have always flown this as a data logger and tracker but this will be > > the first time I have used it for dual deploy. The battery voltage is > > reading > > 4.0 volts and the igniters read 3.5 Volts. The resistance is 1.7 ohms > > for each igniter. I did make the mod to the battery removing the board > > as suggested. I would like to fly this weekend at KLOUDBURST but am > > afraid to rely on this altimeter if I cannot ground test. > > I'd definitely agree with this plan; fly nothing that you aren't sure > about. > > -keith > > _______________________________________________ > altusmetrum mailing list > [email protected] > http://lists.gag.com/mailman/listinfo/altusmetrum >
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