Why would there be a difference between the IR signals sent between a non RF remote (MX-700) and an RF remote MX-800, 850, 950 or 3000?
On my MX-700 the codes work perfect for my Sonicview satellite receiver. On my MX-850, MX-950 and MX-3000 commands work about once in every 15 pushes.
URC had no idea why the 700 works so good and the 850, 950 & 3000 don't. Even tried learning the commands from the 700 to the other three but had the same result. Also tried importing the codes from the MX-700 to the other remotes and it still doesn't work. There are NO codes for Sonicview in any database except the Harmony which as far as I know can not be exported.

I'm not familiar with any of the remotes except the MX-3000 but I wonder if it might have something to do with the duration of the signal being sent by the remote. I recently had some window shutters installed and had nothing but problems getting them to work with my MX-3000. The original remote would work every time but the MX-3000 would take four or five button presses to get the shutters to respond. It turned out that the shutters required a sustained burst of the code being sent. I tried various settings finally using a repeat code setting of 18 times. I used this for a week and got 90% success. I bumped the repeat setting up to 21 and after a week and a half I've now had 100% success (no failures to act by the shutters in that time). Perhaps the MX-700 is sending the code out for a longer duration than the other remotes? Maybe each remote has a different default setting? I don't know about the software for each remote but you might try increasing the number of repeats in each editor assuming each one has this setting.

Bob

Only the MX-3000 can adjust the output for learned commands. So far I have found that the default setting is 38 for frequency (whatever that means). I found that by changing all of the commands on this particular unit to 30 frequency I can get 99% response on the commands. Now I just hope that I can get the MX-950's I have to work too since they can not have their commands modified by the editor like the MX-3000 can.

Well some of the commands can be sent to my 950 with the universal browser but most of them are not selectable. How do you make the commands in the MX-3000 file so you can select them with the MX-950 UB?

You seem to be talking exclusively about changing the frequency. I was talking about something completely different. In the MX-3000 software are you aware you can change the number of times a code is repeated when sent? This is done by highlighting the button containing the code in question. You then double click on the code in the macro window at the bottom of the screen (in the IR data column). This brings up a dialog box where you can specify how many times a code is sent when a button is pressed. I had to set it to 21 to get my shutters to respond successfully every time I send shutter commands. Be aware that if the "repeat while button is pressed" box is checked that the number of repeats specified is irrelevant. In this case the code is only repeated if you hold down the button. Holding down the button, like is used for ramping up a volume control, can be a good way of determining if repeating a code can be helpful but if you want to send a code a specific number of times when the button is tapped make sure the "repeat while button is pressed" box is not checked.

I have no idea if software for remotes other than the MX-3000 have this capability. If this setting solves your problem perhaps you can use apply this trick to your other remotes.

Bob

Only the MX-3000 software can adjust the repeat output for learned commands. The MX-950 software can only do this for database commands and the 700-800-850 software does not have this option at all that I know of. Yes I actually had to change the frequency to get the buttons to work 100%. You might want to try this for your shutters. It works much better than raising the repeat. I actually had to turn down the repeat to 1 on most buttons.
I have some shutters also that I would like to change to remote. Can you tell me about your setup?

The shutters were manufactured by Norman Shutters. Last I checked the sales leader, Hunter Douglas, doesn't have motorized shutters. Mine are installed in my living room where I previously had blinds. I got the shutters becasue I wanted something that would do a better job of darkening the room. They're located behind my 64" rear projection Pioneeer Elite HD set. It's a really big box and I didn't want to have to crawl behind it every time I turned it on to close the shutters on the four windows. The motorized ones now work 100% of the time since I increased the repeat to 21.

Everything works great, although, I do wish the shutters closed a little tighter. The room is much darker now than with the blinds but the shutters do let a little more light in between their seams than I would like. I'm not really complaining as the shutters ae doing exactly what I was hoping for and my daytime viewing experience has improved considerably.

How did you know what to change the frequency to? I thought about trying this but I never did do any experimentation since increasing the repeats worked so well.

I just started changing the frequency one step at a time and hitting test. It happen to start hitting at about 33.3 so I kept going to see where it would stop to get a happy middle. Then I tried some of the other buttons at a similar frequency and when one wouldn't hit I kept moving the frequency up and down to see where it would hit. I finally found that all buttons would hit at the 30 frequency except one. Most of the buttons were hitting on every push unless I moved 1 or 2 steps away from the 30 frequency. The one that didn't hit I took all of the way down to 18 and up to 50 before I decided screw it. Didn't really need that button anyway.