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RE: Temp loss of control
Those crimp connectors are aviation type and are used on just about every full scale plane out thier. I also used an aviation crimper that locks until the crimp is done. The duralite regulators would both have to fail with the AR9100 and thats not likley. I have lost little foamy planes all the way up to jets with spektrum. The transmitter is back at horizon now agian for the second time. It has something called a backup error now and does not work at all. I used the flight log all the time also. I feel that most of my problems are from the transmitter it self. The first time it went back the transmitter had a bad RF board and was sending out a reduced singnal.
Bottom line is the RF link with spektrum has been horrible. Having to use 2 receiver batteries 4 satlitle receivers and a flight log then still having to keep your fingers crossed for a decent RF link is total BS. My problems might be an isolated issue I dont know. But the more I look the more I see people having problems with the spektrum stuff. I dont see the RF link in question on any other 2.4 system out thier accept for JR spektrum. |
RE: Temp loss of control
Gun,
I agree, it sounds like you might be having transmitter issues. I have been flying Spektrum/JR since day one...first with my 10X and modules and now a 12X (and still the 10X too). I have flown the Spektrum 9000s, JR 921s, 1221s and 1222s in my F-15, F-16, T-45, Velox, Lightning, BoliCat and Tucano. I have well over 1,000 flights combined between the jets and have never had a single issue (other than having the transmitter antenna pointed the wrong way one time which ran the number sky high) so I am sold on the technology. Good luck with your search, but I'll bet it is the transmitter. If you are having issues with multiple set ups...that is the common link. Cheers, Beave |
RE: Temp loss of control
I too now question the Spektrum gear.
This Saturday, we had a catfish fry and fly at our field. A buddy in the club asked me to fly his small electric prop-job. I was in the air for maybe three minutes and was a good 700 feet out and 250 high, in a left hand knife edge. I think I was rolling to the right, back to wings level and that was the last control I had. It continued to sustain a high right hand roll into the ground. Luckily it was small and light enough and slow enough with thick grass that there was little damage. I asked how he had set his fail safes and got a blank stare. So I checked them out. Seems there were no fail safe positions set, the plane would just hold what ever last commanded position. It was a Spektrum 6 channel (I think) with a small reciever with two little antennas protruding. I think most likely scenario was that it lost the signal (shadowing???) and held last position all the way down. I have been reading a lot lately about these DSSS issues and now I got hit with it!!! I think JR has some issues..... Futaba, Airtronics, Hitec, MPX, Weatronics are definitely the way to got for 2.4.... |
RE: Temp loss of control
What was the receiver number? Was it a park flier receiver?
If so, you flew out of range. Beave ORIGINAL: Woketman I too now question the Spektrum gear. This Saturday, we had a catfish fry and fly at our field. A buddy in the club asked me to fly his small electric prop-job. I was in the air for maybe three minutes and was a good 700 feet out and 250 high, in a left hand knife edge. I think I was rolling to the right, back to wings level and that was the last control I had. It continued to sustain a high right hand roll into the ground. Luckily it was small and light enough and slow enough with thick grass that there was little damage. I asked how he had set his fail safes and got a blank stare. So I checked them out. Seems there were no fail safe positions set, the plane would just hold what ever last commanded position. It was a Spektrum 6 channel (I think) with a small reciever with two little antennas protruding. I think most likely scenario was that it lost the signal (shadowing???) and held last position all the way down. I have been reading a lot lately about these DSSS issues and now I got hit with it!!! I think JR has some issues..... Futaba, Airtronics, Hitec, MPX, Weatronics are definitely the way to got for 2.4.... |
RE: Temp loss of control
ORIGINAL: bevar What was the receiver number? Was it a park flier receiver? If so, you flew out of range. Beave ORIGINAL: Woketman I too now question the Spektrum gear. This Saturday, we had a catfish fry and fly at our field. A buddy in the club asked me to fly his small electric prop-job. I was in the air for maybe three minutes and was a good 700 feet out and 250 high, in a left hand knife edge. I think I was rolling to the right, back to wings level and that was the last control I had. It continued to sustain a high right hand roll into the ground. Luckily it was small and light enough and slow enough with thick grass that there was little damage. I asked how he had set his fail safes and got a blank stare. So I checked them out. Seems there were no fail safe positions set, the plane would just hold what ever last commanded position. It was a Spektrum 6 channel (I think) with a small reciever with two little antennas protruding. I think most likely scenario was that it lost the signal (shadowing???) and held last position all the way down. I have been reading a lot lately about these DSSS issues and now I got hit with it!!! I think JR has some issues..... Futaba, Airtronics, Hitec, MPX, Weatronics are definitely the way to got for 2.4.... Just what is the range of a park flyer reciever???? Dan |
RE: Temp loss of control
Nope. It was supposed to be the full range RX. I have no idea what number as I am not a Spektrum guy, but he said it was full range.....
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RE: Temp loss of control
Park flyer receivers by Spektrum do have a short range and can vary depending on the position of the plane. I'm seen them as short as 200 ft. Dennnis
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RE: Temp loss of control
Dan,
600' I believe is the radius you should adhere to with the park flier receivers I have read on the package...something like that anyway. Beave ORIGINAL: rcjetsaok ORIGINAL: bevar What was the receiver number? Was it a park flier receiver? If so, you flew out of range. Beave ORIGINAL: Woketman I too now question the Spektrum gear. This Saturday, we had a catfish fry and fly at our field. A buddy in the club asked me to fly his small electric prop-job. I was in the air for maybe three minutes and was a good 700 feet out and 250 high, in a left hand knife edge. I think I was rolling to the right, back to wings level and that was the last control I had. It continued to sustain a high right hand roll into the ground. Luckily it was small and light enough and slow enough with thick grass that there was little damage. I asked how he had set his fail safes and got a blank stare. So I checked them out. Seems there were no fail safe positions set, the plane would just hold what ever last commanded position. It was a Spektrum 6 channel (I think) with a small reciever with two little antennas protruding. I think most likely scenario was that it lost the signal (shadowing???) and held last position all the way down. I have been reading a lot lately about these DSSS issues and now I got hit with it!!! I think JR has some issues..... Futaba, Airtronics, Hitec, MPX, Weatronics are definitely the way to got for 2.4.... Just what is the range of a park flyer reciever???? Dan |
RE: Temp loss of control
Guess who's thrilled to still be using my trusty 6 channel 72 Mhz? ;)
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RE: Temp loss of control
ORIGINAL: DadsToysBG Park flyer receivers by Spektrum do have a short range and can vary depending on the position of the plane. I'm seen them as short as 200 ft. Dennnis |
RE: Temp loss of control
Do you remember how the transmitter antenna was oriented?
Beave ORIGINAL: Woketman ORIGINAL: DadsToysBG Park flyer receivers by Spektrum do have a short range and can vary depending on the position of the plane. I'm seen them as short as 200 ft. Dennnis |
RE: Temp loss of control
ORIGINAL: Woketman ORIGINAL: DadsToysBG Park flyer receivers by Spektrum do have a short range and can vary depending on the position of the plane. I'm seen them as short as 200 ft. Dennnis |
RE: Temp loss of control
ORIGINAL: bevar Do you remember how the transmitter antenna was oriented? Beave |
RE: Temp loss of control
ORIGINAL: Moerig ORIGINAL: Woketman ORIGINAL: DadsToysBG Park flyer receivers by Spektrum do have a short range and can vary depending on the position of the plane. I'm seen them as short as 200 ft. Dennnis <br type="_moz" /> |
RE: Temp loss of control
That makes a big difference. Sometimes guys accidentally forget to "fold" the antenna and leave it "pointing" at the plane, effectively placing the craft into the null zone.
Beave ORIGINAL: Woketman ORIGINAL: bevar Do you remember how the transmitter antenna was oriented? Beave |
RE: Temp loss of control
Well, I have flown a bunch of 2.4 now. I'd like to think that I instinctively thought of that and folded the antenna over as I do with my radio, but I cannot honestly say that I did. The guy that owns the plane put it on the runway and handed me the Spektrum TX and I hit the gas and took off. I cannot recall if I even glanced down at the antenna....
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RE: Temp loss of control
ORIGINAL: Woketman Nope. It was supposed to be the full range RX. I have no idea what number as I am not a Spektrum guy, but he said it was full range..... Danno |
RE: Temp loss of control
ORIGINAL: rcjetsaok The question still stands.... Does anyone know what the range is for a Park Flyer Rx.??????... Because Horizon Technical support and the powes at be don't know either... If they do, they ain't telling !!! Danno |
RE: Temp loss of control
Pin 37 on the CYRF IC must be connected to ground. It has been left to float. This is a serious design oversight, causing intermittent operation under certain dynamic conditions. Not an opinion that warrants debate but a fact contained in the design documentation ignored by the Spektrum designer and confirmed by the chip designer, Cypress Semiconductor Technical Support. Unfortunately this is one of many poor design features. This is only a problem on the RX side. The TX module is a commercial off the shelf unit and was designed correctly by that vendor. It is not safe to fly. It is too be expected Spektrum will deny this.
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RE: Temp loss of control
ORIGINAL: bigplumbs I am wondering if the fact that we transmit at 1/10th the signal strength has somthing to do with it. Dennis We are on 100mw, what do you think the states are on? Paul |
RE: Temp loss of control
ORIGINAL: Moerig Pin 37 on the CYRF IC must be connected to ground. It has been left to float. This is a serious design oversight, causing intermittent operation under certain dynamic conditions. Not an opinion that warrants debate but a fact contained in the design documentation ignored by the Spektrum designer and confirmed by the chip designer, Cypress Semiconductor Technical Support. Unfortunately this is one of many poor design features. This is only a problem on the RX side. The TX module is a commercial off the shelf unit and was designed correctly by that vendor. It is not safe to fly. It is too be expected Spektrum will deny this. Very Intereeeessssting !!!!!!!! I believe it. You almost have to think these companies think they are the CIA or something !!!! All this cloak and daggar and smoke and mirrors crap !!! Some body at Spectrum knew this full and well and the was overridden by the powers at be saying it's not a problem or the probable failure rate was acceptable !!! Just like the the guy from Morton-Thiokol that knew there would be a failure and tried to stop the launch and was pushed away and they launched any way... And of course we all know what happened...... Makes you wonder !!! Danno |
RE: Temp loss of control
What is the "certain dynamic condition"? Making a claim like that is akin to me saying the same thing about Faast, and when you ask what the condition is I state "when soaked in kero for 3 hours, placed in a centrifuge and then lit on fire with a torch".
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RE: Temp loss of control
ORIGINAL: bevar What is the ''certain dynamic condition''? Making a claim like that is akin to me saying the same thing about Faast, and when you ask what the condition is I state ''when soaked in kero for 3 hours, placed in a centrifuge and then lit on fire with a torch''. From the Device Datasheet: Datasheet Document #: 38-16015 Rev. *I on page 23 refers to L/D pin recommendation changed to : "PMU inductor/diode connection, when used. If not used, connect to GND. From Cypress technical support: If the L/D pin is left floating, the switching regulator inside the PMU will pick up noise which will in turn increase the radio noise and the noise on the board. PMU refers to Power Management Unit. It is a feature to prevent brownouts. Spektrum did not implement this feature and this pin was left unconnected. This is a cut and dried technical issue confirmed by die chip vendor. Not debatable, sorry |
RE: Temp loss of control
ORIGINAL: Kometfreak Without igniting the brand wars, suggestions to trouble shoot my problem. Today while flying a practice for a upcoming airshow I suffered a lockout. The controls went hard over just long enough to trip the ECU shutdown on my RTI and force me to land deadstick I am using a DX7 with AR9000 rx and remote. I do not think the issue was brownout as I do not recall the light flashing. The controls going over tends to make me believe that it is not wire, battery or switch to the RX. I have almost 70 flights on my setup. Help Pssst...it's the JR/Spektrum Death Roll....I have seen it and read about it too many times... |
RE: Temp loss of control
ORIGINAL: rcjetsaok Very Intereeeessssting !!!!!!!! I believe it. You almost have to think these companies think they are the CIA or something !!!! All this cloak and daggar and smoke and mirrors crap !!! Some body at Spectrum knew this full and well and the was overridden by the powers at be saying it's not a problem or the probable failure rate was acceptable !!! Just like the the guy from Morton-Thiokol that knew there would be a failure and tried to stop the launch and was pushed away and they launched any way... And of course we all know what happened...... Makes you wonder !!! Danno |
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