dx8 telemetry issue airspeed and mi/max page no worky - RC Groups
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Jun 18, 2011, 01:19 AM
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basser's Avatar

dx8 telemetry issue airspeed and mi/max page no worky

bound my tm1000 to my ar600 rx using dsmx. everything works except i dont get the telemetry page with alt. or airspeed and i dont get the min/max page to show any numbers. i do have an airspeed unit hooked up.

i tried rebinding no help disconnected all the plugs one at a time to the tm1000, no help.
all telemetry options are act. in the set up menu.

temp works, rpm works, data works, flight pack works. airspeed no worky because the telemetry page is blank and the min/max srceen will not show numbers.

anyone got any ideas
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Jun 18, 2011, 09:03 AM
AndyKunz's Avatar
Are you running version 2.01? Earlier versions don't support airspeed and altitude sensors.

Jun 18, 2011, 10:41 AM
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basser's Avatar
yep im running 2.01 in the dx8
Jun 18, 2011, 01:08 PM
AndyKunz's Avatar
The sensor(s) need to be attached to the TM1000 when the TM1000 is powered up. Re-binding won't make a difference. Once the TM1000 is sending telemetry data to the transmitter, you only need to power cycle the TM1000 to activate the sensor.

The Min/Max screen shows numbers for all devices that are attached to the TM1000 and are configured to Display: ACT on their individual setup screens.

Do you have alarms set on the airspeed sensor?

I'm going to PM you.

Jun 18, 2011, 03:05 PM
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basser's Avatar

andy thanks for your help i sent you the spm file

i tried repowering the tm1000 several times with all plugs installed and any combination i could think of. also rebinding in all different ways with different combinations of plugs installed into the tm1000.

all devices are ACT in set up screen. no alarms set, they are all inh.

update: i uploaded my model into another dx8. i rebound rx(ar600) and tm1000 to this "other" dx8 and ALL telemetry pages worked good.
so then i saved this model from the "other" dx8 to the memory card and uploaded it into my dx8. i rebound the rx(ar600) and tm1000 to this newly uploaded model in my dx8. the telemetry pages all worked except for the airspeed page.

i then turn off the rx and then the tx. i repower up the radio system and now still the airspeed page and min/max page are not working. the titles for these pages are there, "TELEMETRY" and "MIN/MAX" but nothing underneath is displayed.

i do have an airspeed componant pluged into the xbus slot. both dx8s are version 2.01 and all binding was done in dsmX mode.

the tm1000 seems to be fine,. it worked in the "other" dx8. my dx8 doesnt give me data in those 2 pages
Last edited by basser; Jun 18, 2011 at 03:13 PM.
Jun 18, 2011, 04:34 PM
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basser's Avatar


pics of each page of telemetry. my aircraft rx and tm1000 is also turn on.

airspeed and altitude are both ACT in setup menu
Jun 18, 2011, 05:05 PM
AndyKunz's Avatar
Check your e-mail.
Jun 02, 2012, 08:41 PM
ATP/CFI Heli Sea Glidr Balloon

DX8 2.04 No Min / Max values for airspeed

I am having a slightly different problem. I get live airspeed telemetry just fine but no airspeed on the "Min / Max" page. I searched to see if this was a known issue but this old thread was the closest I found. Any help appreciated.
Name: DX8 Min Max.jpg
Views: 59
Size: 144.5 KB
Description: Live airspeed display works but no airspeeds here.
Jun 02, 2012, 09:50 PM
AndyKunz's Avatar
Go to the telemetry menu, add the sensor to a slot in the list, and change the Display to Act.

Jun 03, 2012, 03:03 AM
ATP/CFI Heli Sea Glidr Balloon
Even though the live airspeed telemetry was already working?
Name: DX8 Speed.jpg
Views: 71
Size: 120.0 KB
I thought that meant I had already done what I needed to do.

Well, that transmitter hasn't been touched since that airspeed telemetry test flight, so I just powered it back up and double-checked:
Name: DX8 6 Speed.jpg
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Size: 285.4 KB
Name: DX8 Speed Act.jpg
Views: 51
Size: 104.9 KB

I'm a beginner with the DX8 so if this seems highly unlikely to you then I will repeat the test tomorrow, just to eliminate the possibility that I am somehow in error. One possibility: the airspeed sensor was the last entity on the X-Bus chain. Perhaps a continuity problem at just the wrong time (e.g., momentarily dislodged upon landing) could have let me see airspeed all during the flight but no Min / Max after?

Thanks for your help.
Jun 03, 2012, 03:18 PM
AndyKunz's Avatar
The DX8 does not care what is attached in the plane. It reports only what it is configured to report, it does not automatically change the configuration.

Is it possible you are using a different model? Each model has its own set of telemetry settings.

Jun 03, 2012, 04:48 PM
ATP/CFI Heli Sea Glidr Balloon
Andy, as far as I know, I never changed models. To the best of my recollection, during the same flight I was getting live airspeed on another page but whenever I scrolled over to Min / Max the airspeeds there were always blank. But, if you've never seen this before, it seems most likely that this is somehow a Bruce problem rather than a Spektrum problem.

So, before I waste any more of your time, I will set up that model indoors with a fan blowing on the pitot tube and see if I can reproduce this for a video. If so, I will then post that for your analysis.

Thanks again for your responses.
Jun 08, 2012, 03:26 AM
ATP/CFI Heli Sea Glidr Balloon

DX8 2.04 Instantaneous Speed Displayed But Min / Max Speeds Missing

Andy, I went flying this evening and reproduced the issue on video for you. Thanks in advance for any suggestions as to what I might be doing wrong. -Bruce

DX8 Speed 480p 120607.mov (0 min 14 sec)
Jun 08, 2012, 06:58 AM
Surface, Air & Water Rc Toys..
freechip's Avatar
You have other issues as well.

65 FRAMES 2 HOLDS & Telemetry signal coming In&Out seen from the top right corner bars BLINKING

Where is the plane?
Jun 08, 2012, 10:12 AM
AndyKunz's Avatar
You went through those screens a bit too quick for me to see anything.

Can you attach the SPM file please?



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