I know there's some jeti users on here, have a question. Wanting to run the jeti mezon telemetry with my 14MZ. Not yet sure if I want to use a Jeti tx, so I'm thinking I need the mezon, jeti profi box, and an r7 rx to do this.

I'm looking at the manuals for the mezon esc with bec and the r7 rx.

The mezon manual says to run power to rx via both leads and to use a free channel for the red ended wire. To use the mezon telemetry this red wire is to go to the ext port on the rx.

The r7 manual states that the ext port cannot be used for power to rx.

So is the ext port on the rx isolated from the power bus then, because you've still got voltage coming through the red wire. Thus when running telemetry with the bec you'll only have 1 power wire to rx, the throttle wire?

Am I understanding this correctly? Can you run a buffer pack along with the bec?



As far as the setup I'm thinking of doing, that means the throttle connector with the power would be going to the futaba rx, along with a buffer pack which would have to be on a regulator and switch, and I'd have to have a separate power supply and switch for the r7? or am I lost here?

I'm not sure I understand your set up. It would seem you'd connect the Mezon BEC to the throttle channel of the Futaba receiver and the red connector to the ext port on the Jeti receiver. If that doesn't power the r7 then run a power cable from the Futaba bus to the r7 bus.

I switched from the 14MZ to the Jeti DS16 and I would recommend you do the same. I run the Mezon with the BEC to power the electronics but I also have a back up 500 mAh 2s LiPo regulated by a Jaccio Perfect Switch connected to the receiver bus. The regulator is set to a lower voltage than the BEC so the small battery seldom needs to be charged.

I never took a close look at the profi-box but it sure is nice to have all that stuff integrated into the transmitter. Perhaps the profi-box can perform the same functions but it seems like it could be difficult to use all the time. I love the fact I can glance at my transmitter and read the motor battery voltage before I take off and read the capacity consumed at the end of the flight. I also have an alarm set to tell me when I have used 4000 mAh.

Bottom line is you will use something if it is user friendly and it will gather dust if it isn't.

Jim O

Thanks for the reply. A power wire from the rx would be a good idea. It occurred to me as I was writing the post that I had no way of powering the r7 rx.

I've been thinking what I want to do with the 14mz as its going the way of the 9z, comparing the different telemetry systems offered and I'm finding jeti to be far ahead of everyone I've seen. Seems like it was more of an afterthought to most of the other companies where Jeti really seems to have a good grasp of it. I'll end up getting their tx at some point.

The profi box really seems to be a good alternative for not having the tx. Seacraft sells a mount it could be attached to and with a small adjustment to my tx trey could be mounted to the trey right in front of my tx. Since it has audible warnings just like the tx, it should work well I would think, but I'm just going by the manuals I've read and my imagination. I'm thinking I'd have access to voltage, capacity, rpm, amps, and with it directly wired to the futaba rx, rx voltage also. For the small penalty of the rx weight, which is very little, I'd have their telemetry system working just as the tx setup.

I think Jeti really has their act together on this. Wonder that more aren't looking into this as it supports electrics very well. Fuel prob not worth it. I'm thinking this setup with the bec set to 7.9 or so along with high voltage servos and a 250 mah lipo on a switch without regulator. I'm thinking forget the tx timer and going by the capacity alarm for ending flights.

Hi,
Although You have already the Jeti telemetry components it maybe can be of interest that one can select another path with Futaba 14MZ when one want some telemetry and it is to get a Robbe/Futaba Telemetry-Box

http://www.robbe.de/telemetry-box-2-..._from_store=en

With this receiver
http://www.robbe.de/empf-r6308sbt-fa..._from_store=en

I use above and use the Robbe/Futaba current sensor
http://www.robbe.de/stromsensor-150a..._from_store=en

And the voltage connection lead
http://www.robbe.de/anschlusskabel-e..._from_store=en

That gives me the important things I want to keep track of in the air: mAh consumed in LiPo flight battery and alarm when limit I have choosen is reached, and voltage of LiPo flight battery. I also get alarm on low voltage on receiver battery supply.

It works fine but I sure would like a transmitter with built in telemetry support, but my Futaba 14MZ will have to be in use some more years before I get a new transmitter (18MZ or what is avaliable then as a good choice for me).

Robbe/Futaba has rather much telemetry sensors etc these days and many works with the Telemetry-Box. But the sensor SBS01G Multi-functional GPS vario / altitude / distance / position sensor is not supported in the Telemetry-Box (I have asked Robbe and they said no).
http://www.robbe.de/rc-fernsteuerung...re=en&limit=54

You can read more about above in my assembly thread of Sebart MythoS Pro if interested
http://www.rcgroups.com/forums/showthread.php?t=2160324

/Bo

Thanks for the post. I'll go through your thread tonight when I have more time. Am looking forward to it.

Looks like the US is the last to know. Wasn't even aware some of those items were available. First impression is the jeti system is a little more integrated. Futaba needs to update their esc's that they've come out with.

Exactly, the system integration is the important thing. It is kind of what makes Apple tick. All their stuff works together. Jeti, like Apple, isn't perfect but they do listen and they do update firmware and software and keep improving the system without obsoleting the hardware.

I used the Eagle Tree stuff before I got the Jeti, but you end up with a bunch of boxes and cables that is a mess. Think of all the stuff you would need to duplicate what the Mezon/Jeti receiver/transmitter do. I also connect a GPS module that can't weigh more than an ounce or so. Hard to beat.

Jim O

Strange that telemetry is not that much used in the US. It has been around in Europe for some years now. I used to have a Jeti DC16 with full telemetry when it was released but changed back to Futaba once they supported telemetry. I have for almost two years been using Futaba 18MZ with telemetry sensor from SM-Modelbau a German company specialising in sensors. It works flawless and is half the price and size? of Robbe/Futabas own sensor.


The down side is that their web page, instructions and software are in German. Google translate should help for those of you that don't read German.


http://www.sm-modellbau.de/shop/prod...d=143&cPath=18




Jeti is for sure a bit more integrated. A bit more soldering and wiring when using Futaba. This is what I am using in one of my F3A models.


Regards,
Henning

Some translations in English here http://www.sm-modellbau.de/shop/shop...t.php?coID=100

I played a bit with my Jeti stuff.
My current setup:
* Jeti Mezon 90 ESC Lite with BEC (5.8V) connected to Futaba R6208SB Rx.
* Backup rx-power from Scorpion BackupGuard (500mAh 2s lipo + regulator 5Vdc/10A + switch + LED + Shottky diode). Shottky diode is important. It prevents mismatching between Mezon BEC (5.8V) and BackupGuard (5.0V)
* Futaba transmitter
* Jeti R9 and DC-16 display (instead of Profi-box) for testing purposes.

Test 1:
R9 is powered only via Mezon red cable plugged in EXT-port. The telemetry on DC-16 screen works but unstable. For example, rx voltage display is floating from 4.8 to 5.8V.

Test 2:
R9 is powered via Mezon black cable plugged in BAT-port. Red cable is still plugged in EXT-port. The telemetry on DC-16 screen works flawless.

Conclusion:
Jeti Rx manual is correct. Don’t use EXT-port to power Rx. Use Y-cable to feed Futaba-Rx and Jeti-Rx from Mezon BEC. Pay attention to proper wire gage. Or use another cable. Apply a diode to separate BEC and Backup voltage.
Hope it helps.

Sergey

Thanks for the info,