Het laatste Corona-nieuws
Hmm, bij Corona zegt men nu dat ze weer bezig zijn met een ' nieuwe' FHSS versie!'
Ze willen me wel een setje opsturen om te testen. Okee, mooi, ik heb alles inmiddels DSSS omdat FHSS niet goed werkte (aantoonbaar feit, deze versie is zelfs uit productie gehaald daarom) maar nu gaat het goedkomen ! Ja, maar dan wel weer alles naar FHSS ombouwen...
Het lijkt dat ze nu iets op de markt willen gaan brengen met een ID-code die is 'ingebakken' in de chip.
Hieronder de correspondentie, met het laatste bovenaan. Het lijkt me dat de K.N.V.v.L misschien de allerlaatste aanwijzing kan geven over het Corona DSSS probleem ?
De mailwisseling: --> Dear MR Marcel, (these emails have been altered for privacy reasons, (names) yet the content of it is important for our discussion here/to help find a solution for Corona)
Thanks for your feedback. I mean you hold the binding button +3 seconds when there is interference or ID is the same . If no distrubing, you do not need to change the ID. Have you try our suggestion ?
Our engineer designed the memorizer of MCU .If it is broken, that will caus lossing control.
We have changed the setup of newly released FHSS 2.4ghz new system.The setup will be more easier than DSSS.If you are interested ,I can send you one set for testing. We are waiing for your suggestion.
Thanks for all your advice .We will take it and improve our products.
Corona RC Team
2010/10/16 Marcel
Dear Corona,
You say that holding the bind-button for more than 3 seconds will prevent this from happening again, so no more overlapping which can cause a crash ?
In your manual you instruct to not hold the bind-button for longer than 3 seconds, this is quite a dramatic change of pase.
I can imagine that a change of ID is done electronically in stead of already in the processors, what is better ? I think that a fixed ID code in a chip is a better
guarantee to malfunction.
Did you change this setup in any of your newest V2 DSSS series ? (very important to know, I'll just take it that you have a CE-approval, since it's on your products)
Anyway, as I'm convinced of Corona DSSS this problem remains, I sincerely hope that your new +3 seconds binding procedures will prevent any crashes in the future.
Ofcourse it's important to get rid of this silly AD (Airworthinessctive Dire). Let's work on a good solution to get Corona DSSS back in the air again...
Kind regards and awaiting your reply,
Marcel (CFI at
Gooi en Eemland Vereniging van Modelvliegers - Home)
From: ***corona@gmail.com
To: marcel***@msn.com
Subject: 答复: Corona DSSS Airworthiness Directive, stop using Corona
Date: Sat, 16 Oct 2010 11:22:01 +0800
Dear Mr Marcel,
Thanks for your supporting corona RC.
Regarding your problem ,we felt very sorry about it .It maybe the ID overlap problem .
Here is our answer:
1.A turn on the power of the receiver then ,turn on the transmitter ,then start the binding the tx and rx.
2.B turn on the transmitter into to binding mode ,press the button of tx more than three seconds ,press the button of rx and power it.
3.Power B Rx, turn on B Tx. Establishing the Link of Tx and Rx.
4.You can try several times if there is still interference.
WE suggest you try the above steps for several times in order to separate the frequency of different corona users.
Pls check if it is ok. If not ,there must be the memorizer of MCU broken. That cause ID overlap.
By the way, If there is over 50 pilots flying 2.4ghz in the same field ,we suggest you not taking our 2.4ghz system. We can not guarantee the safety .
Thanks and best regards.
Corona RC Team
发件人: Marcel *** [mailto:marcel***@msn.com]
发送时间: 2010年10月16日 5:39
收件人: Corona Sales dept
主题: Corona DSSS Airworthiness Directive, stop using Corona
重要性: 高
Dear Corona,
As a pleased Corona-user my rc-model flying club issued a warning on Corona users to stop using Corona 2.4 GHz immediately.
Everything passes now (in Dutch...) -->
storing-corona-2-4-dsss-5
Flying club -->
Gooi en Eemland Vereniging van Modelvliegers - Home (Dutch)
--> Why did this ban on Corona 2.4 GHz DSSS happened?
On October 9 a strange crash occured with a 'hacked' Futaba FC18 and some other Futaba that is 'Hacked' using Corona DSSS 2.4 GHz.
One plane was powering-up his Corona plane (switching to on, transmitter uses a plug-in module) whilst another plane lost control some 50 yards away from it, in the direct vicinity of water / a small lake.
Transmitter uses a hack module, wired over the PPM-signalcarrier-board
The other plane did switched to on, but lost it's connection to the plane, drifting in and out of binding irraticaly. Replicating the event is proven to be a problem, we still
don't have a clue.
I would really like to have this rediculous Corona-ban out of this world asap.
How do you feel about solving this problem ? As far as I know there has not been any problems of this kind. Do you have any information regarding the frequencychips you use ? Or some CE-approval ?
Kind regards and awaiting your reply with very much interest,
Marcel *** (air)