Spektrum Telemetry Options - Page 5 - RC Groups
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Jan 05, 2012, 06:35 AM
AMA 84248 since 1964
Since I Easter Egg the Telemetry package between planes, does anyone know if I can purchase just the Pitot tube and extra silicon tubing?

My plan is to build All subsequent models with a pitot tube permanently installed in the wing leaving short stubs mid-wing, color coded (red on the straight through tube) so that I can easily attach AirSpeed sensor.

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Jan 05, 2012, 07:37 AM
AndyKunz's Avatar
You can check the Eagle Tree site. The pitot is theirs.

Jan 05, 2012, 01:17 PM
Registered User
They are available from Horizon Hobby.I picked up a couple from the website.

Part # SPMA9588
Jan 06, 2012, 05:20 AM
AMA 84248 since 1964
How about a good source for tubing that has a 1/16th outer diameter? Years ago, when living in Germany, I used to use plastic Nyrod from Graupner that was white plastic outer with a solid inner rod. I wish I could find that stuff here in the US cuz it would be perfect. I think the stuff they sell at Fish (Acquarium) stores is going to be too big.

I've heard that the pneumatic lines used for retracts might work, but don't think that our local Hobby store carries the stuff in bulk. Also thought of going to the Auto Junk yard, looking under hoods for the squisher hose, but again I believe that it is too big.

Has anybody found a good resource?

Jan 06, 2012, 07:32 AM
AndyKunz's Avatar
I use real small fuel tubing. I buy it at the LHS. It's the size you use for a TD .051. Fish air line comes in several sizes, too.

Jan 06, 2012, 07:35 AM
Suspended Account
I'm glad you are here andy.. maybe I can get an answer to my question on your message box cheers
Jan 06, 2012, 09:37 AM
Registered User
Harry H's Avatar
I used the Robart air line. Works great. Got it at my LHS - they stock just about anything you can think of

Jan 06, 2012, 12:00 PM
AMA 84248 since 1964
Lucky day,
I found some Robarts air line, and also a SPMA 9569 hanging on the wall. There are no instructions in the package, but I think someone said to check page 8 of the Dx8 manual. Scary thing is that I read in some reviews that it didn't work on a Saito 4 stroke. I plan on bolting it to the bottom of a Saito .40 and will be holding my breath.

Maybe I'll get a reading if I spin the motor w/o the plug using the starter motor.

Jan 06, 2012, 09:36 PM
AMA 84248 since 1964
One thing to report, the plastic bracket does not fit on a Saito .40 and it was a bear to get to work. Frankly, I don't know what we did to get it to work apart from tinker with the position initially without the bracket. I had to remove the bracket completely, file it a bit then re-install with the sensor backwards in the bracket. The sensor needs to be nearly touching the backplate, at least that's what we wound up with once we got it to start working. Watch for the red light to come on when powering up. I think this is an indication that the RPM sensor likes the magnetic field it is seeing.

This sensor really needs a bracket that has more options for adjustment both in regards to different backplate spacing as well as depth and vertical variation.

Jan 23, 2012, 05:38 AM
AMA 84248 since 1964
I scored another Air RPM sensor, and with a good deal of tinkering got it mounted on a Super Tigre .60 taking a picture of the final set up. I'll post it here too, so folks don't need to troll through threads.


Jan 23, 2012, 01:52 PM
Registered User
2.4g shaun's Avatar

Alternative sensors....

I've had the Spekky telemetry system since it was released ( I use an IPOD Touch for the readout) and I've been very pleased with it.

The only thing that's letting it down, is the cost of the Altimeter / Speed sensors etc.. they are relatively expensive.

Has anybody managed to integrate / modify any of the cheaper sensors from other manufacturers yet so they talk to the Spekky software app... i.e Frsky Variometer $9.00, GPS module $41.00 ( speed lat / lon) etc.

I would like to measure speed and height.

What would be great would be a GPS module from Horizon as you could get speed, height etc from this one unit.

Also does anybody know if the X-Bus is actually an I2C bus ???? It would allow so many sensors to be added if wanted easily (after the software has been updated)

Last edited by 2.4g shaun; Jan 23, 2012 at 01:58 PM.
Jan 24, 2012, 05:23 AM
AMA 84248 since 1964
I see what you mean as I just checked the price of the Altitude sensor and was suprised to find it over 40 bucks here in the US. I will say it is very sensitive, and probably gives more accurate readings than you will get from GPS. Before the wintery mix closed in on us I flew my Telemetry package w/altitude, and my son reading out the data. I was surprised that the data indicated the aircraft was bouncing between 70 and 140 feet. It was a windy day, but to my eyes, I could not detect the 40 foot bounce.

Jan 24, 2012, 05:39 AM
Registered User
Most of the sensors are the same as Eagle Tree , you just need to change the connector.

I would imagine the GPS module is coming out soon, its just a matter of programming for the radio.

Xbus sensors have a passthrough, so I imagine you could link them serially.
Jan 24, 2012, 08:08 AM
AndyKunz's Avatar

We use a different communication protocol. The stock ET ones won't work.


You were probably seeing pressure changes from the gusts, too.

Jan 24, 2012, 01:32 PM
Registered User
2.4g shaun's Avatar
Hi Andy,
is the X Bus I2C or your own propriety one?
.....or can't you tell as it's secret squirrel


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