I tried the TM by itself a couple times and it was taking about 8-10 minutes to get a lock. I had it in the shade of a small tree in my back yard, so I moved it to the middle of the yard on a small plastic stool. That seemed to work a little better (6-8 minutes?). I turned on the RRC2 and it was about the same. I tried the camera without the RRC2 and it went over 10 minutes. I added more aluminum tape on the backside of the camera module and around the ribbon cable from the module to the camera board. That got it back under 10 minutes.
I tried firing up my Garmin Oregon 450. It had 9 satellites in view and had a lock within a minute. The most I saw from the TM was 7. It usually took 6 to get a lock. For now I'm going to chalk it up to living in a somewhat densely populated area with 2 story houses, trees and my large patio cover in the way. I never unplugged the battery from the TM. I have a screw switch I'm using to arm it. On Sun, Jul 12, 2015 at 2:17 PM, W7AMI <[email protected]> wrote: > Chris, > > If you can narrow it down to just the camera, try disconnecting the > imager from the electronics and see if that makes a difference? Is the > problem worse when recording than just with the camera powered on? > > You might also consider using copper tape to seal up all the gaps in > the shielding of the electronics package. Gaps can radiate an amazing > amount of energy sometimes. > > EMI mitigation is part science and part black magic in my opinion. > What works one time won't work the next. Grrrr! > > Terry > > > On 7/12/2015 1:07 PM, Chris Attebery wrote: > > Hi Terry, > > I was outside, but only about 10 feet from my house. I think I had 6 > satellites in the initial solution and 10 in view. I fired it up by itself > until it found a lock and then turned it off. Then I fired up the other two > and turned it back on in the same spot. > > I'll turn it on by itself and time it a couple times. Once I have a good > feel for it's lock time I'll try with just the RRC2 and see if it makes a > difference. > > Thanks, > > > Chris > > On Sun, Jul 12, 2015 at 12:00 PM, W7AMI <[email protected]> wrote: > >> Chris, >> >> Indoors or out doors? How many satellites were in the solution? >> >> The first time you turn on a GPS receiver in a new location it >> sometimes takes longer to lock up than if it is close to where it was last >> used. >> >> Try the Telemetrum with just the RRC2+ to see if you can eliminate it >> as the problem source of the problem. >> >> Terry >> >> >> >> On 7/12/2015 12:43 PM, Chris Attebery wrote: >> >> Hey guys, >> >> I finished my altimeter bay integration last night. I fired up the >> Telemetrum 2.0 by itself and it took 5-10 minutes for it to get GPS lock. I >> turned it off and then turned on my camera and Missile Works RRC2+ before >> turning on the Telemetrum on this time I let it sit for 6 minutes and it >> never found any satellites and never got a lock. >> >> I have the camera board shielded but the camera module is unshielded >> and near the Telemetrum. I've been told that writing to the SD card on the >> camera produces a lot of noise and can interfere with GPS signals. Any >> suggestions? >> >> >> >> >> >> _______________________________________________ >> altusmetrum mailing >> [email protected]http://lists.gag.com/mailman/listinfo/altusmetrum >> >> >> >> _______________________________________________ >> altusmetrum mailing list >> [email protected] >> http://lists.gag.com/mailman/listinfo/altusmetrum >> >> > > > _______________________________________________ > altusmetrum mailing > [email protected]http://lists.gag.com/mailman/listinfo/altusmetrum > > > > _______________________________________________ > altusmetrum mailing list > [email protected] > http://lists.gag.com/mailman/listinfo/altusmetrum > >
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