altusmetrum October 2015

altusmetrum@lists.gag.com

8 participants
7 discussions

group project for Thunda in 2015?

by Bdale Garbee

Keith and I both hope to be able to attend "Thunda Down Under"[1] in 2015, and I've sent the organizers email requesting information on what it takes to be treated as an on-site vendor. Of course, it's always more fun to be at a launch when you have something interesting to fly! Thus, while Keith and I might each show up with a modest "travel rocket" of some sort... I've started pondering possible larger "Altus Metrum" group projects. Since transporting a large airframe to Australia would be a hassle, I wonder if a group project to build an airframe in-country makes more sense? To that end, I'd be pleased to know if any of our friends and customers in Australia want to sign up to help with such a project? My thoughts would be to engage in some group-think about project scope and goals, then hope friends in-country would take on the sourcing and preparation of suitable airframe materials. Depending on who wants to participate and how tasks get taken up, we might plan to arrive a bit early to help with any final assembly or other preparations, installation of suitably fresh Altus Metrum electronics, etc. So, to all our Aussie friends... does this sound like fun? If so, please chime in with a reply. I don't expect the email associated with such a project to be too heavy a load for this list to carry, but we can always spawn a dedicated lists.gag.com list if I'm wrong. Regards, Bdale [1] http://thunda.com.au/

5 years, 10 months

Battery care and maintenance

by David Carter

I was let down by the battery last weekend. While it is probably my fault, it meant I had to swap out the TeleMetrum for a non-trackable flight computer. This led to an hour of whacking bushes so to speak in farmers fields. This is what I got the TeleMetrum to prevent. So I have some questions about the best way to care for and handle the battery. (I’m using the 900 MaH LiPO) When I last used the device, I’d returned from the field exhausted. I just set the rocket aside with the battery still connected to the TeleMetrum. I knew this would drain the battery, but I thought it would be no worse than that. When I did take it out to charge, I found that I’d actually left it on, so it had been transmitting until it died. Oops. So I put it on to charge overnight before bringing it to the field. I’d never actually checked it until I got to the field. The battery hadn’t charged at all. It was dead. I put it on a car charger for a little while, but I was getting nothing. So I had to swap it out for another, less capable, computer. When I removed the battery from the foam I had wrapped it in, I also noticed that it had swollen, and was no longer the flat battery I had put in. So my questions are: 1. Is it normal for a battery to fail after being fully and completely discharged, or do I have a bad battery? 2. Is the swelling of the battery normal? If not, what would cause this? 3. What are some good ‘Best Practices’ for the care and handling of the battery? David Carter NAR 98850 Level 2 KC3FEW

7 years, 3 months

Re: [altusmetrum] Tele BT

by Kevin Trojanowski

When a Telemetrum or TeleMega are in launch mode, they're transmit only so you should be able to receive packets on both your laptop and phone at the same time. -Kevin -----Original Message----- From: altusmetrum [mailto:altusmetrum-bounces@lists.gag.com] On Behalf Of Tim Navickas Sent: Thursday, July 30, 2015 7:11 PM To: 'Altus Metrum' Subject: [altusmetrum] Tele BT This may be a dumb question but is there anywhere that describes how to know when the TeleBT is fully charged? Also, Can a TeleBT be connected to the Telemtrum via phone and at the same time a teledongle be connected to the same Telemetrum via computer? Thanks, Tim _______________________________________________ altusmetrum mailing list altusmetrum(a)lists.gag.com http://lists.gag.com/mailman/listinfo/altusmetrum

7 years, 4 months

Position errors during ascent

by Chris Attebery

Hi guys, I've flown my Telemetrum V2 twice. On both flights it appears that the GPS position didn't update from boost until the mid way through coast. I've seen other TM KML files and they don't seem to have this issue. Is this normal? Thanks, Chris Attebery

7 years, 4 months

Problems Programming TeleDongle Version 0.2 with AltOS Image

by Nigel Woolcock

Dear All, I'm in need of some advice and guidance with the programming of my TeleDongle Version 0.2 with the appropriate AltOS image. I have an uncased (Non-Starter Kit, Serial Number 142) TeleDongle Version 0.2 which I need to use as a second ground station for my TeleMega Version 1.0 (and/or my TeleGPS Version 1.0). I've installed it into a rugged, screened metal enclosure with a 3 metre USB cable so that it could be located as close as possible to the antenna to minimise feeder loss. I've attempted to test it with both Windows 7 and Windows XP laptop PCs (which are known to work well with my other TeleDongle Version 0.2 supplied as part of my Starter Pack). Unfortunately the TeleDongle isn't recognised by either Windows 7 or Windows XP, and being shown as having stopped working. As a result of this I suspected that the uncased TeleDongles may have been supplied "blank" and without an AltOS image. I then attempted to flash the firmware to the "blank" TeleDongle using the companion lead supplied with the Starter Kit and my TeleMetrum Version 1.2 (Firmware Version 1.1.1-1) with the AltOS GUI (Version 1.6.1) and following the procedure in the manual. However, I could only see and select the TeleMetrum as a device, and even after selecting it I was unable to specify it as a programming device. In addition, when selecting the image to flash only the images suited to the TeleMetrum were made available and the serial number and RF calibration values displayed were those for the TeleMetrum itself. I was afraid to attempt to progress any further through the procedure in case I "bricked" my TeleMetrum. I also attempted carrying out the companion programming using my (Starter Pack) TeleDongle Version 0.2 (also Firmware Version 1.1.1-1) with much the same result as before but with the only difference being that the image files and serial number and RF calibration values were for the TeleDongle instead of TeleMetrum. Again I was afraid to progress any further as I didn't want to risk corrupting the firmware in my only working TeleDongle. Am I correct in assuming that non-Starter Pack uncased TeleDongles were shipped "blank" and so without any firmware? Are the results of my attempts at companion programming (up to the last step before stopping and backing out) the same as those normally expected? Does the device being programmed need to have an existing AltOS image in order to be successfully programmed? If this is the case how do I program the "blank" TeleDongle with the required AltOS image? Also how do I derive the RF calibration value if I cannot obtain it from an existing (and working) firmware image? Is my lack of success due to incompatible or widely differing firmware and AltOS GUI versions? Do I need to revert back to an earlier version of the AltOS GUI? I'm quite sure that I've followed the procedure in the manual exactly and therefore I'm now turning to the combined knowledge of the group in order to get this little board up and running. Any answers to my questions, additional information, assistance or suggestions would be very much appreciated. Many thanks in advance. Best regards, Nigel. -- ----------------------------------------------------------------------------- Nigel Woolcock. TRA 5231 L2 UKRA 1020 L2 RSO -----------------------------------------------------------------------------

7 years, 4 months

Altos UI support in Mac OSX El Capitan

by Kieran Sullivan

Is Altos UI supported on Mac OSX El Capitan? Kieran

7 years, 5 months

How to clear flight data on TeleMetrum?

by Chris Attebery

Hello, I'm getting my TeleMetrum ready for a launch this weekend. I had set the maximum flight logs to one before the first flight I used it on. I noticed that when I've tried to change this variable AltOS pops up a message that the flight logs need to be removed before it can be changed. If I don't delete the existing flight log will the TM just overwrite it? Thanks, Chri

7 years, 5 months

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altusmetrum October 2015