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RF Remote Controls: Is It Time for You to Step Up?

by August 20, 2006

A Discussion of RF Universal Remotes vs. Traditional IR

I've been fixated on IR and RF remote controls for some time now, and it frequently shows in my review critiques. I have no tolerance for bad remotes - the industry has been around long enough to avoid any of the common errors that plague a bad unit, yet for some reason they seem to always reinvent the wheel… And often times that "wheel" ends up being flat, balding or just plain wrong for its intended use. Even with my criticisms, perhaps the best integrated remote is one that is ergonomic, but doesn't drive the cost of the unit through the roof. Remember, one thing that we DON'T want is for manufacturers to put so much into the remote control that it ends up being a non-removable option which results in more expensive gear. That's the equivalent of buying a car and being forced to pay more for an upgraded audio system when you'd just as soon go out and buy your own. In that sense, third party remotes are always (and should always be) king.

Why Don't More People Use RF Systems?

I don't know. I can only guess that there are several reasons consumers haven't jumped into the RF world in droves:

  1. They haven't had the chance to experience RF and assume it's just another style of remote
  2. They assume RF remotes are too expensive
  3. More advanced programming leaves them thinking it may be more work than it's worth
  4. Major name brand systems have yet to hit the market in sufficient numbers to drive consumer awareness and enthusiasm
  5. Most consumer models have been unreliable over any reasonable distance (especially through walls)

I'll be up front with you: I'm going to blow holes in every one of these reasons and attempt to convince, en masse, a complete rethinking of the RF phenomenon. Why? Because an RF remote control will change the way people (and especially spouses) view home theater. A well-programmed remote control can be the difference between apathy and generating actual excitement about an AV system.

The Way It Is, vs. the Way It Should Be

Let's paint the picture of the typical home theater system. A basic system in a household consists of a DVD player, cable or satellite box, receiver and display. In a more sophisticated system, the OEM receiver remote control unit may be programmable to handle the DVD player and even the display. It will theoretically handle the cable box, but not in a usable way (no on-demand or menu control buttons or extended DVR functions). The resulting system control "procedure" may look something like this:

  1. John picks up his OEM receiver remote and turns it on
  2. He uses the same remote to turn on the TV
  3. He then puts down the OEM receiver remote and picks up the OEM cable box remote to turn on set top box and change channels
  4. After getting to the channel he wants, he puts down the OEM cable box remote and picks up the OEM TV remote (yeah, the one he thought he didn't need any more) and changes the aspect ratio so he can eliminate the nauseating stretch mode for the football game
  5. After adjusting the set he puts down the OEM TV remote and picks up the OEM receiver remote to further adjust the volume

Does this sound familiar? Are you still wondering why your significant other doesn't get excited about watching movies or TV? Are you curious as to why your relatives only show mild interest when you talk about your latest electronics purchase? You do? OK, let's look at another version of the above:

  1. Susie picks up the universal RF remote and hits the "TV" button
  2. Susie goes and gets herself some popcorn

Yeah, that's it. OK, are you starting to get it? I know that the first scenario is an exaggeration and some of you are yelling at the computer telling me that your IR remote will allow for macros and ease of use. That's fine, and some IR-based remotes are excellent. But they aren't bullet-proof and you need to remember to correctly point the remote at the proper device in order for it to function correctly. And sometimes those macros take a while to run. In addition, some components have a very narrow angle with which the IR will correctly connect to the device. In these situations you become a contortion artist with very good timing as you swoosh and swoop the remote in a frenzied IR dance which closely resembles a Jedi lightsaber training session.

RF Remote as a Component

Here we get to my primary point and the main thrust of my article. When you move to RF you begin to enter into a place where your home theater finally becomes a "system". For too long, remote controls have played second fiddle to every other component in the system. Some people actually spend more money on cables then they do on their control system. An RF remote is just as important to a system, in terms of impressiveness and grandeur, as a display or source component upgrade. If you can grasp this concept your entertaining life will be forever changed. Imagine how much easier it will be to engage your spouse in purchasing decisions if she actually has the ability to utilize the system? If you didn't get the overt but cleverly hidden message in the previous sentence please re-read it. For far too long, we have heard complaints about how only one person in a household supports the "AV hobby" while the other simply cannot comprehend the significance of a new projector or bigger subwoofer.

This is your chance to engage. Considering that the cost of admission is just over $100 you really can't ignore the benefits.

Once your theater system becomes "one-button friendly" it will be far easier to engage your spouse in the decision-making process. Now everyone in the household can show off the system to friends and the theater room or entertainment system becomes something both homeowners can be proud of. I've lived through this and the difference is amazing.

It is high time the remote control begins to be treated as a true component and not an afterthought.

RF vs. IR: What's the Big Deal?[remotes]

RF remotes generally work this way: The originating signal is sent from the remote as RF (radio frequency.) In the case of the MX-950 in my theater that's 418MHz, a very stable and reliable frequency band. This signal is read by an antenna module, the RFX-150 or RFX-250 which transfers it to a receiver - the MRF-250 or MRF-300 (models are given so that you can look them up later for reference). The receiver will translate the incoming RF signals into standard IR commands which are sent via IR emitters (or perhaps RS-232, more on this later) to your A/V equipment.

An RF remote control system can be very complex to set up, but the results are worth it. Instead of a standard IR remote (or series of remotes) which have to be pointed "line-of-sight" in order to work correctly, an RF remote, correctly configured, can be placed or pointed just about anywhere. You can walk towards your kitchen while initiating "DVD playback mode" on your main theater system. The distance is only limited by the RF range - and since you can add additional RF repeaters, that's almost limitless.

Because the IR emitters are positioned directly overtop of the IR sensors on the devices you are controlling, dropped commands are almost nonexistent - provided you've done your homework and set up the RF system correctly to reduce interference. With a well-designed RF system you can make an almost infinitely complex theater system usable by anyone in the family - and make sure that your settings and configurations are also kept safe.

Programming Overview

While we can't possibly go over every single RF remote control's programming interface, it's easy to point out some simple guidelines that will help structure the process and make it much easier to program macros and device functions:

  • Start by defining the system devices and/or macro controls
    There are two schools of thought: activity-based and device-based. I like a combination of both. If you're looking to go with an activity-based system, make sure you think through the entire process needed to correctly control the system during any particular activity. This will include getting your display to the right input, setting the receiver to the correct A/V settings, and even specifying the surround sound mode (Dolby standard, or Pure Direct, for example). This will get programmed into the remote later once everything is correctly set up. If you want more direct control over your devices, set up a DEVICES menu item which jumps to a selection page allowing you to get direct control over any device in you're A/V arsenal.
  • Program in each controllable device
    This step is what loads up your remote control with the commands necessary for controlling your other AV components. Any remote control company worth its salt will have at least 90% of all available equipment you could need in a database that can easily be assigned to the remote. For anything hot off the presses or not listed in the database you can learn commands into the remote.
  • Edit button layout
    The good remotes will have a combination of tactile buttons as well as a customizable LCD screen. You'll want to customize the LCD screen top provide the most commonly-used functions. It is probably a good idea to attempt to limit this to one screen - simplicity is key and, as we'll later point out, you can retain complete control over your system for advanced use.
  • Configure macros
    Macros make your remote work. Without macros, you've just moved from IR to RF. Macros are what allow you to press a button and then go make some popcorn while your system configures itself for the big game. I'm not joking, this should be the end result when you're finished.
  • Set RF control parameters
    For many RF systems, you will be able to assign commands to each of the individual IR blasters attached to components in your system. This is an important step as it will reduce the amount of IR overshoot - or contamination which may confuse the IR sensors in the devices being controlled. You can also adjust levels from the IR emitters to optimize performance and reduce the amount of ambient IR which can overspill and confuse other components.

Tips and Techniques

Obviously every system will differ, however here are some general tips and techniques that can be implemented which will save you countless headaches and potentially hours of troubleshooting:

  • Test in IR mode
    If you have difficulties with the RF remote controlling certain aspects of a piece of equipment, test to make sure it can control the gear via IR first. If so, then you know the code for that function is working and can move on to more advanced troubleshooting
  • Check for RF interference
    Check to see that there is no RF interference in the area where the remote is transmitting and being received. Basically if the RF receive sensor is lighting up like a Christmas tree when you aren't sending commands, you may have some issues. At that point you'll know whether your receiver needs to be moved to a different location in order to improve reception and reduce unwanted RF noise.
  • Adjust the IR emitters
    It is important to have your IR emitters correctly positioned on your equipment. A flashlight can help you to identify where the IR sensor is on a set-top unit. On some models the IR emitters can be attenuated - which is very helpful when you are using devices whose IR receivers can be easily overloaded (cableTV boxes or satellite boxes - HD DVR units are particularly sensitive.) If you cannot attenuate the output of your IR emitters then you may need to reposition them on the face of the unit or even apply a piece of electrical tape with a few pin holes punched through it to reduce the IR levels.
  • For devices that cannot support a wired IR blaster
    Use a general IR blaster for in-room items such as ceiling-mounted projectors which cannot easily support the use of a wired IR blaster. In Reference System 2, for example, we have placed an additional MRF-250 on top of the RBH Sound CinemaSITE which controls the projector via IR.

The Next Generation of RF Remote Control

Something was brought to my attention recently that could possibly change the face of system control in a very significant way. Universal Remote Control, Inc has developed a set top box called the MSC-400 (Master System Controller) that does a number of things. First of all, it stores system macros, meaning that the remote now only has to send a single RF command to the unit which then calls up the associated macro and fires off commands to the system components. The second BIG feature is RS-232 control (one way for now, but a two-way box is in the works). What? RS-232 control? Yes. The MSC-400 will fire off macros which will control connected components via RS-232. Want a truly bullet-proof system - this is it.

Up until now there were two serious ways to control a complex installation: RF, which can run anywhere from $100 to $1000 or more and RS-232-based systems from the likes of Crestron and AMX which start around $4500. There was no middle ground until now. With this new system you get the ease and flexibility of RF control (not to mention a much easier programming interface) plus the added benefit of a rock-solid RS-232 system which bypasses any potential IR blaster issues or problems. Figure around $2000-$2500 for a complete system including a top-of-the-line remote and RF receiver.

This is going to cause a lot of people to reconsider upgrading a basic RF system to a more robust interface that still costs less than half of an entry-level RS-232-based installation. We'll be keeping our ears peeled for more news in this area and we'll line up a review of the new (now shipping) MSC-400 following the CEDIA 2006 Expo to test it out.

Support and Implementation

I cannot stress this enough - do not buy a comprehensive RF remote system from an unauthorized online dealer. If you want the support that goes along with the product, get it from an authorized dealer and make use of the technical support and resources that are part of the retail sale price. Getting the remote system is the solid first step to AV system independence, but if you cannot get it properly configured you have missed the mark. Most remote control companies offer excellent support options and you should be quite willing to support them for providing these helpful resources.


Hopefully by now you've seen the incredible advantages of RF system control. I don't want to see anyone settle for an old-school IR-based remote system - especially considering that a basic RF system will run you just over $100. If you truly want to have a useful, but still affordable, system that impresses and features bullet-proof control, RF is the way to go. I know I'M never looking back!

Special thanks to Glenn Gentilin of Universal Remote Control, Inc for his insight and help with this article


About the author:
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Clint Deboer was terminated from Audioholics for misconduct on April 4th, 2014. He no longer represents Audioholics in any fashion.

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