I picked up a glitch buster from my LHS today. Hopefully it does the trick.

Ran a glitch buster last weekend. Still conked out when I hit the boards, but less frequently. Switched to another RX (SR3250) and didn't have the problem anymore.

I did have an issue with interference from a FlySky radio, but that's a whole other thing.

Not saying this is you problem but got this info from Horizon yesterday. If the part number on the box of your dx4r pro ends with the letter W it is a new version and it is not compatible with sr200 or sr300 recivers.

I've been running SR410 and SR3250. Hard to believe a system that's supposed to be entirely backwards compatible wouldn't work with those other RXs.

My new dx4r pro has the W at the end of the part # like Horizon said and it works with the sr2000, sr410, and sr3250. Would not bind with old sr200 or old sr300.

I'll have to check but mine pairs up with an SR300 so I think I'm in the clear.

Does Horizon say there is potential for a fix in a future software update? Seens dumb for this to do on purpose, lotta competition in the TX/RX game and Spektrum is not the most popular already.

If you dont have issues Spektrum is awesome, but seems to suck if you have issues.

I wonder if they're trying to crush the Orange receivers that are based on the earlier architecture.

Does anyone know if the DX4r will work with the super old original SR3000 receivers? I e-mailed Spektrum and of course got no response.

My DX4R Pro can bind to SR3000, I have one in my MERV and its no problem. I think I must have an old modle even though I bought it last month.

I'll be testing Blue MX SR3100 clones when they arrive. Said to work while Orange RX clones dont, if your TX can bind to SR3100.


I hope they realise clones DO NOT hurt their business but actually help it. More will get the TX if they have a viable 10$ RX source, not all will use clones but those that do will still be using a Spektrum TX to run them. Going out of their way to block clones hurts business, often they hurt all customers not just Clone users, as look at it now, new TX not backwards compatible is pissing off a lot of users and CERTAINLY deterred some from getting a Spektrum TX, so bad some are switching Brands...

I just got my DX4R Pro on Friday, So far I love it. and it was a major upgrade from my GT3C. The only thing I have done to it is the LifePO4 batteries. At my local Frys they sell a 4 pack of AA LifePO4 batteries for 10$ so I figured what the heck. I just bridged the battery tray so I only need to run 2 of the cells. So far I started the day Sunday at noon with 6.9v on the full charge and ended the day with 6.7v at 9pm, that's pretty impressive to me.

I converted mine to left hand drive, I assume the insert will work it will just be steering wheel down in my case right?

I'm not even left handed but that's the way I drive. (for whatever reason) this is why I bought this transmitter. I love it.

Not sure if this is accurate but spoke with Horizon directly today. I bought the DX4S w/o AVC and it will not bind with any receiver other than dsmr. CS said both the DX4S and DX4R Pro will only work with dsmr and no more backwards compatiblity. I told him I wanted to return it and initially he said "no" but after explaining FALSE ADVERTISING to him on the Horizon website showing it working with either DSMR or DSM2, they are letting me return it for a full refund!!!

Can I see pics

I understand that federal regulations are likely the reason for them doing this. But I hate the fact that Horizon basically does a "running change" on a current product. Leaving people to wonder "Why will my buddies radio bind with other Rx and mine won't??" Or when it comes time to sell or buy the radio USED, both parties need to educate themselves even further on whether or not the radio in question is backward compatible.

Hey Horizon, would some sort of "heads up" announcement been that hard?