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Jul 01, 2011, 03:06 PM
If it flys,I can crash it
cptdragn's Avatar
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RedCon 6CE 6 Channel (DSMX - DSM2 compatible) Receiver


RedCon 6CE 6 Channel (DSMX - DSM2 compatible) Receiver.

Looks like Grayson hobby has jumped on board the cheap DSM2 bandwagon. Here's their version of a spektrum comparable receiver.

http://www.graysonhobby.com/catalog/...eywords=redcon
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Jul 02, 2011, 01:21 AM
duct tape and hot glue
cool
so is it dsmx as in it will bind to dsmx transmitters, but still be in dsm2 "mode" like every other fake, or is it actually the first dsmx fake?
Jul 02, 2011, 02:24 AM
If it flys,I can crash it
cptdragn's Avatar
Thread OP
Not sure, I know what you know from the web site. Its "says" DSMX compatible.
Jul 02, 2011, 03:44 PM
Registered User

Detailed information on RedCon DSM-921 9 channel receiver


Hi I just purchased two of the DSM-921 9 channel w/ aux receivers. I dissembled the DSM-921 and a AR921 from JR/Spectrum. The pictures of the internals are attached. The one on the left is the JR piece and the one on the right is the RedCon piece. The RedCon Part is only DSM2 but it is compatible with any DSMx Radio. Also it can be used with Realflight 3/4/5 and maybe 5.5. You connect a cable (included) it to channel four on the receiver, Plug in your flight sim transmitter (the one provided in Realflight) and plug in a battery or 5 volt power supply. Turn on your PC and calibrate your JR/Spektrum 2.4 radio and that is how you use your on transmitter wireless. Questions ? Message me.
Jul 09, 2011, 07:40 PM
Registered User

More: Detailed information on RedCon DSM-921 9 channel receiver Remote Receivers


I have taken the Remotes apart (JR on left)..(RedCon on left). I have found that the CPU units are different.

The RedCon unit uses the STM8S105. Data sheet here: http://www.st.com/stonline/books/pdf/docs/14771.pdf

And the JR uses the: http://www.cypress.com/?mpn=CY8C21434-24LCXI

They both use the cypress RF chip: http://www.cypress.com/?docID=28606

Pictures attached.
Jul 20, 2011, 07:45 PM
Bush Pilots Bounce Higher
Spidious's Avatar
I got one of these from them. it will not even go into the bind mode. Now it isn't even on their site !
Sep 22, 2014, 04:20 PM
R/C Electro-Gadgeteer
Tomapowa's Avatar
Quote:
Originally Posted by Spidious
I got one of these from them. it will not even go into the bind mode. Now it isn't even on their site !
WARNING:
Purchased two REDCON CM-921 9- channel "DSMX Compatible" receivers from this Ebay seller...

http://www.ebay.com/usr/discountdepot

http://www.ebay.com/itm/Redcon-CM-92...item5409444d0a

Even tough the advertisement says "DSMX Compatible"... IT WILL NOT BIND TO A SPEKTRUM DX18 DSMX transmitter.... so much for being "DSMX Compatible" as their ad title says. Originally, the seller was going to refund me the price but not the $ to return... he then thought he found a loophole where he did not list the DX18 as a compatible Tx... Ebay 1st sided with him but after a long call to Ebay/Paypal where I had to educate them on R/C gear, they gave be a "Courtesy Refund"... where I believe the seller still gets to keep my $... go figure.

So... BUYER BEWARE!

p.s. I also tried binding them to my DSM2 JR12X transmitter and NO GO... what a POS!
Oct 06, 2014, 08:32 PM
Registered User
I am using this receiver with Turnigy 9XR, programmed to OpenTX, and my radio module on the 9XR is a Spektrum DM9 DSM2 module.

The Redcon CM-921 binds as does the attached satellite CM-921-S.
Oct 12, 2014, 03:37 PM
Registered User
Spektrum is finding ways to lock out aftermarket Rx in newer models. I just bought a DSMR DX4C radio and it comes with 2 receivers and I will never buy any more because they are $50 each. If this is the case I am not buying any more Spektrum radios. I have bought 4 and I'm out. $50 for a 4 channel ground Rx. It's almost theft. I use genuine Spektrum Rx in my serious models but I have DOZENS of models and I use orangeRx or Flysky in cheaper stuff.
Dec 31, 2015, 06:15 PM
Registered User

New 9 channel REDCON Receiver


Redcon must have done some re-design, or I just got lucky. I ordered one in early Dec without checking this thread, and it came 2 days ago. I took it down to my shop today, and it it bound just fine to my Spektrum DX9, and the transmitter is reporting that it bound in DSMX mode. It is too cold here (Utah) to go check it out in a more expendable plane, but I will do that as soon as it warms up a little in a couple of months. I purchased mine from Banggood with free shipping and so far am happy with it. I didn't check the binding with my DX8 or DX6i, but those should be no-brainers (ha!)?

The current advertisement at Bang Good shows the CM921 as follows:

"REDCON 2.4G 9CH CM921 DSM2 DSMX Receiver W/ CM921S Satellite Spektrum JR Compatible" which specifies that the current receiver is DSM2 and DSMX compatible.
Last edited by Zonker40; Dec 31, 2015 at 07:01 PM.
May 06, 2016, 11:18 AM
Registered User

Redcon DSMX compatibility


Remember, guys, "DSMX compatibility" only means that it will bind to a bi-capable Tx (DSM2 & DMSX), but not necessarily in DSMX mode. As one guy posted, his DX-9 showed it bound in DSMX mode, so that is proof that it will operate in DSMX mode. I have a genuine-looking 6-channel Spektrum Rx bought from an cheap Chinese seller that I sent in to Horizon Hobby to be checked over. They said they were certain it was a genuine product. They thought it must have "fallen off the truck" during a trip across Beijing and was picked up by this seller. It would not bind to my DX-9 at all! I think you get what you pay for, unless lots of sucke...um, folks have tried them out before you buy one. The Orange products seem to work well, as well as the Yellow. You need to ask, is your plane worth the $20 or so to buy a proven product?

Tenngunner
May 06, 2016, 12:16 PM
Registered User
I finally put my Redcon 9 channel receiver in my Goldberg Anniversary Cub, did a range check (I always check at 30, 40, and 50 paces), then flew it twice with my DX9. Everything seemed to go well. I was going to make more flights but my OS 70 Surpass decided it didn't want to run any more that day. I haven't taken it out since, but so far it hasn't given me any trouble in DSMX mode. I forgot to look and see on my transmitter if the DSMX was 11 or 22 milliseconds, but that doesn't seem to be noticeable when flying my other receivers.
Oct 03, 2019, 02:52 PM
Registered User
Reviving a dead thread.
I bought four of these from Banggood.
One of them binds but twitches the servos wildly as it moves them.
Two of them will not go into bind mode (No blinking in spite of bind plug).
One of them works.
Waste of time.
Oct 05, 2019, 09:22 PM
early retired & loving it
Quote:
Originally Posted by K Humann
Reviving a dead thread.
I bought four of these from Banggood.
One of them binds but twitches the servos wildly as it moves them.
Two of them will not go into bind mode (No blinking in spite of bind plug).
One of them works.
Waste of time.
1. are you using the BAT channel for bind?
2. If you get the fast blink, according to Spektrum, move the tx at least 2 arms length away from the rx during bind. Closeness can overpower the RX.
3. I found that a clone RX was probably never tested with a clone TX so unless the TX is a real Spektrum you could have a problem. I found this case w POWERUP DSM RX and ORANGE TX6i. Bound but died at 20 ft distance.
Last edited by bnrusso; Oct 05, 2019 at 09:28 PM. Reason: addition


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