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HomeAircraftHelicopterRadio - Spektrum DSM › Flight Log Data Recorder (JRPA145)
10-16-2011 11:12 PM  6 years agoPost 1
Dingo07

rrApprentice

Newport Coast, CA - USA

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Has anyone used one of these before with a R921 receiver and one remote receiver (stock hardware with the Heli X9503)?

I'm wondering if it really aids in figuring out the optimal locations of the receivers, or if it's just more of a "gadget" to check interference at the field or so.

Thoughts... anyone?

Thanks

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10-18-2011 01:51 AM  6 years agoPost 2
jschenck

rrProfessor

La Vista, NE.

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yes, I have and it does. It's also really helpful to tell you if something is going wrong with the RX. I had the case come loose on my red JR921 (old original release) and started cutting the antenna's off. I started getting a lot more errors showing up with the logger. Hardest part of the device is to remember to look at the numbers before powering off the heli.

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10-18-2011 08:51 PM  6 years agoPost 3
Dingo07

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Newport Coast, CA - USA

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Thanks for the post. Is there any way to get the data out of the device and on a computer? Or is it simple enough for it not to be necessary?

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10-18-2011 08:56 PM  6 years agoPost 4
jschenck

rrProfessor

La Vista, NE.

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I don't know, I'm sure there is but I've never looked into it. No need to though it's really simple data. Shows how many frames were dropped per antenna and how many holds the RX experienced. Should see 50 or less frames dropped per antenna and always should have zero holds. A hold happens when you drop 50 frames in a row if I remember correctly.

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10-18-2011 09:30 PM  6 years agoPost 5
cbflys

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Nesconset, NY - USA

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The EagleTree eLogger can record Spektrum Flight Log data.

http://www.eagletreesystems.com/MicroPower/micro.htm

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10-19-2011 01:00 AM  6 years agoPost 6
Dingo07

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Newport Coast, CA - USA

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that EagleTree has everything!!! The software charts really look nice. Do you use one cbflys?

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10-19-2011 02:40 PM  6 years agoPost 7
cbflys

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Nesconset, NY - USA

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Yep, I have one. I used it mostly for performance testing motors, however - with the Castle ICE ESC's integrated logging, I must say that I don't use it much anymore.

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10-19-2011 03:02 PM  6 years agoPost 8
Wayne Parrish

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Apex,NC,USA

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The Flight Logger should come as standard equipment with every new transmitter sold,its that important !! There is NO WAY to know if your setup ,radio, is correct without it,PERIOD .Please don't start a range war by coming back with comments like,I've been flying for years with no problem so I don't need it. There is NO WAY to know how many fades,holds you have been getting without one .A case in point. This past weekend I test flew a new Spitfire for a good friend and when I asked him about the radio setup he said he did it like they say to do it. I asked if he had a Flight Logger and he and the other flyers around the "huddle" didn't even know there was such an animal.I keep one on my Vario Bell 47 and check for problems every flight ,so I took mine off and installed it in his Spit and when we range checked it it had WAY TOO MANY fades. WE went in and rotated the receivers and when checked we had 001 fade ! HOW would we have known that there was a problem w/o the Flight Logger ?? Its simple "WE WOULDN"T" ! They are about 30 bucks ,easy as pie to use and I can't imagine anyone that would put the effort and money into a heli or aircraft of any sort without checking it with a "FLIGHT LOGGER". Buy one,you won't be sorry ! WP

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10-19-2011 03:35 PM  6 years agoPost 9
cbflys

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Nesconset, NY - USA

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Wayne has a good point. I neglected to point out that I now use the integrated telemetry in my DX8 to verify RF performance.

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10-19-2011 10:23 PM  6 years agoPost 10
Dingo07

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Newport Coast, CA - USA

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and I guess there's nothing like that (telemetry) in the X9503, which is why this unit is available...?

I guess I'll just get one...

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10-20-2011 12:16 AM  6 years agoPost 11
Dingo07

rrApprentice

Newport Coast, CA - USA

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Is the SPEKTRUM SPM9540 the same unit? Will it work connected to the R921 receiver? It seems to cost less than the JRPA145.

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10-20-2011 12:27 AM  6 years agoPost 12
Wayne Parrish

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Apex,NC,USA

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Contact Horizon and get the info so you will have the straight of it. The Flight Logger is for exactly what it is described for ,fades,holds,bat voltage and nothing else that I am aware of. Setting up a radio system w/o it is simply guessing that everything is ok. Great little cheap tool.

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10-20-2011 12:43 AM  6 years agoPost 13
cbflys

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Nesconset, NY - USA

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The EagleTree eLogger is just a recorder. It does not 'transmit', therefor - it isn't considered telemetry. Plus, you need to purchase the LCD display or hook it up to your computer to read what it records.

For simple RF performance evaluation - the Spektrum or JR Flight Log is the ticket. You just plug it in after a flight (before powering off the receiver) and it will tell you how many antenna fades, frame losses, and holds you experienced.

You can add telemetry to any JR / Spektrum DSM2 / DSMX system by using a telemetry module and this little gadget. Of course you'll need an iPhone.

http://www.horizonhobby.com/Product...rodID=SPMTR1000

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10-20-2011 01:58 AM  6 years agoPost 14
Wayne Parrish

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Apex,NC,USA

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Best thing since sliced bread ! WP

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10-20-2011 02:26 AM  6 years agoPost 15
jschenck

rrProfessor

La Vista, NE.

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That sti device looks nice and you can pick up an older ipod touch cheap. Even though i already have a DX8 it looks interesting. if this was avalable a year ago i migt have just kept my X9303 and velcro'd my daugters old ipod to the top.

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10-21-2011 02:25 AM  6 years agoPost 16
Dingo07

rrApprentice

Newport Coast, CA - USA

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Thanks for all the input from everyone... now I have some questions.

If I use the Spektrum TM1000 telemetry system connected to my R921 receiver via the data port, will I be able to see telemetry on my X9503 radio?
Or must I purchase the STi Interface for use with an approved apple device?

And from what I understand, this unit (TM1000) does not store the information, it only transmits live, is that correct?

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10-21-2011 02:18 PM  6 years agoPost 17
cbflys

rrVeteran

Nesconset, NY - USA

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You will NOT see the telemetry data on your X9503. You are correct in that the telemetry module does not store data. You'll need to get the STi device and a supported Apple device.

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10-21-2011 02:45 PM  6 years agoPost 18
Dingo07

rrApprentice

Newport Coast, CA - USA

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I will Never be comfortable enough to take my eyes off of the bird, to be able to look at an iPhone (or screen on a radio for that matter) while flying. I'm much more comfortable with recording the flight's worth of data and going home to analyze it on the computer. Or, just bring the laptop with me to the field.

Thanks for all your help and support! The EagleTree it is...

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10-21-2011 04:39 PM  6 years agoPost 19
jschenck

rrProfessor

La Vista, NE.

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Telemetry data is sent to the DX8 and the DX8 stores te high value to look at after the flight. It also alarms if you go out of parameters say too many antenna frame losses or a hold. I assume the STi has similar function.

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