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May 16, 2019, 08:06 AM
newb
So are there certain receivers that work better with the MPM than others? I have several Frskys, but going forward I'd like to use something else.
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May 16, 2019, 08:08 AM
I Void Warranties
goebish's Avatar
Honestly, I had 13 packs with the T16 + Multi module yesterday, at a spot I know pretty well, with XSR (D16 Fcc) and D4R-II (D8) receivers, and all I can say is that it works better than my (old) X9D with internal XJT module, better RSSI and only one low RSSI warning while I had several of them before.
May 17, 2019, 07:59 AM
"Spark Chaser"
jokeane's Avatar
Thread OP

Range testing results on T16 vs. T8SG v2


I did a number of mini quad flights the other day, with my two 5" quads and one 3". All have FrSky RX's; R-XSR, XSR, and XM+. RX antennas are mounted horizontally on front arms and are of course at 90 degrees to one another.

Ranges were just slightly less than my Jumper T8SG v2 w/ multi-protocol module. Perfectly reasonable ranges of 300m to 400m or so. I think I'm getting a bit more than this with the Mini Skyhunter with FrSky XSR, but that is all foam construction with things like VTX, RX and GPS a bit more spread out than on a mini quad.

In my older Jumper with Deviation, you could set the transmitter power level. Of course, I always set it to maximum, which was 150mW.

Not sure why this setting isn't in OpenTX/JumperTX. I poked around in the code and didn't see any way to change the power level for the multi-protocol transmitter module. The R9M module does have a power level setting.

Anyone with experience with the multi-protocol module know if it could have a higher power level setting added to JumperTX firmware?
May 17, 2019, 08:05 AM
I Void Warranties
goebish's Avatar
Power is already set to maximum (~150mW for CC2500 protocols) in MULTI firmware unless you tick the low power checkbox.

Why would you use a multi-protocol module with a T8SG V2 ? Or maybe you mean the internal 4-in-1 module, which is not the same thing.
May 17, 2019, 08:30 AM
"Spark Chaser"
jokeane's Avatar
Thread OP
Quote:
Originally Posted by goebish
Power is already set to maximum (~150mW for CC2500 protocols) in MULTI firmware unless you tick the low power checkbox.

Why would you use a multi-protocol module with a T8SG V2 ? Or maybe you mean the internal 4-in-1 module, which is not the same thing.
Ah, Sorry my mistake. I thought it was the same multi-protocol HW and SW in the T8SG v2 as in the T16.
May 17, 2019, 10:10 PM
Registered User
Bob AZ's Avatar
Thanks so much for getting back to business!
Bob
May 17, 2019, 10:17 PM
Registered User
Bob AZ's Avatar
Quote:
Originally Posted by jokeane
Fair enough. If you have a suggestion for a plug-in (SMA) replacement which would improve range, please post it here.
I ordered a Mushroom TX for my 5.8 FPV radio on my hex and it arrived with a panel antenna for the ground station. I was going to toss it but it says on the back 8dBi gain on 2.4ghz and 11 dBi on 5.8 with an swr of 1:1.5...

https://www.ebay.com/itm/5-8Ghz-11dB...72.m2749.l2649

Haven't tested on the T-16 yet and my replacement T-16 is shipping as I write this.. Plan is to use the panel antenna on the T-16. Too directional and a bit heavy for air, but shouldn't matter if it's on the RX or TX side in terms of better rssi.

Update: On second glance it's an either or on the Panel, not dual band. The numbers are molded in but there is a small 5800 over the 5.8 checkbox. There are a number of similar 2.4 ghz 8 dBi sma panel antennas available.

Bob
Last edited by Bob AZ; May 17, 2019 at 11:58 PM.
May 18, 2019, 01:27 AM
Registered User
Quote:
Originally Posted by goebish
Honestly, I had 13 packs with the T16 + Multi module yesterday, at a spot I know pretty well, with XSR (D16 Fcc) and D4R-II (D8) receivers, and all I can say is that it works better than my (old) X9D with internal XJT module, better RSSI and only one low RSSI warning while I had several of them before.
Yes, I would absolutely agree with that. I have had pretty amazing range with the MPM as well.
May 18, 2019, 02:22 PM
Registered User

Long gimble stick extensions


I prefer long gimble stick extensions; for me, they make controlling the quad easier and smoother since you can get very small movements in the gimble. I got these on Amazon.
https://www.amazon.com/dp/B00HC4YQHU...v_ov_lig_dp_it

Shorter ends are also available.
Last edited by iFly4Rotors; May 25, 2019 at 06:25 AM.
May 19, 2019, 07:20 AM
Registered User
I used cut down versions of those same stick ends on my t8sg. The stock ones were way too short for my liking.
May 20, 2019, 09:20 PM
Flip on Tech
rollys's Avatar

Tenergy 2S 2200 mAh LiPo


Would this 2200 LiPo work/fit?

Thanks in advance for confirmation.
May 20, 2019, 09:44 PM
Registered User
pack is too big won't fit, 34 mm x 19.5 mm x 85mm not including the cables. battery compartment according to Jumper is 75x42x16 mm.
May 20, 2019, 10:03 PM
Flip on Tech
rollys's Avatar
Quote:
Originally Posted by Waco
pack is too big won't fit, 34 mm x 19.5 mm x 85mm not including the cables. battery compartment according to Jumper is 75x42x16 mm.
Thank you very much. That'll help in the search for alternatives.
May 20, 2019, 10:54 PM
Registered User
Bob AZ's Avatar
Quote:
Originally Posted by rollys
Thank you very much. That'll help in the search for alternatives.
You can get up to 5000 mAh in a 2S type configuration of 2 18650 lipos for less than the price of a 2000 mAh flat pack. It's possible to put an 18650 pack together with a lipo charger board . I ordered a few and hope to put together a couple of 18650 packs with the charger board .

Bob
May 20, 2019, 11:00 PM
Flip on Tech
rollys's Avatar
Quote:
Originally Posted by goebish
Honestly, I had 13 packs with the T16 + Multi module yesterday, at a spot I know pretty well, with XSR (D16 Fcc) and D4R-II (D8) receivers, and all I can say is that it works better than my (old) X9D with internal XJT module, better RSSI and only one low RSSI warning while I had several of them before.
How does the Jumper MPM compare to the iRangeX IRX4+ ? Are they comparable? Interchangeable?

Just curious.


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