FM/RF & IR System-FAQ and Troubleshooting

FM system-temporary. Connected with PA system. Shown: wireless microphone and 4 electronic "boxes" with antennas.

Below are troubleshooting tips specific to FM/RF systems and Infrared (IR) systems.

Troubleshooting.

  • Technology throws hiccups, things change. Try to find a staff person who is trained, understands the system, and is willing to work with you.
  • Please don’t discount hearing assistance in such site and facilities, but rather check with staff to see that the system and devices are turned on and operating, much as wheelchair ramps need to be kept open.
  • However, if you’ve tried and still you do not have access to clear sound, try one or more ideas: giving feedback, writing a Google Review (this website), submitting a concern to a staff member, or filing a formal complaint (this website). Templates (this website) are available to help you get started

General (Consumers)

The borrowed equipment draws attention. How do I not "out" myself that I have hearing loss?

All FM and infrared systems require the user to borrow a receiver and then headphones or neckloop.* Sometimes people don’t want the hassle, don’t know to use the equipment, or don’t want to ask.  As a result, people do different things:

  1. Stay home. That would be sad, but sometimes people choose to stay home because they are frustrated that they can’t hear when they are out.
  2. Don’t borrow and use the equipment. It’s true, many people do not wish to “out” their hearing loss by using the equipment, and thus will not use it – even though they will miss out on what is being said.
  3. Alter your clothing. You can wear dark colors, so the receiver, wire, and headphones (or neckloop) have less of a contrast.
  4. Don’t worry about it. Borrow the equipment and participate!

* In contrast, a user doesn’t need to pick up any equipment with a hearing loop.  An person can use their hearing aids as a receiver and discretely connect to the hearing loop, via a built-in telecoil.

How can I prepare?

Where required, all sites and facilities under Title II entities (state and local governments) and Title III entities (businesses and nonprofit organizations that serve the public) of the ADA, are responsible for having and maintaining their assistive listening system (FM, IR, or hearing loop).

Still, some places have staff turnover, get busy, or are unaware of their civil right responsibilities. 

So to prepare for your visit, you can

1. Check the website. Only Title II entities are required to put information on their website. However, it’s good business practice for Title III entities to include information on the website and other places.

2. Email or call ahead of time. Ask specific questions, such as “I read on your website that you have an FM system.  I just want to verify that you have working receivers and neckloops.”

3. Give yourself extra time. It takes time to find, checkout, verify the equipment is working.

Do I have to use earbuds - they seem unsanitary?

Yes, you have no way of knowing if staff remembered to clean the earbuds after every use. A few options:

  1. You can ask the facility for their cleaning supplies and clean the earbuds themselves.
  2. You can bring your own alcohol wipes.
  3. You can ask the facility to consider purchasing headphones.
  4. You can bring your own wired headphones with a 3.5 mm plug.
How do I make the single ear speaker/ear hooks stay on my ear?

Many people do not like the monaural ear loops/ear hooks: they can only hearing from one ear and they are cumbersome to wear.

Ask the site if you can borrow headphones instead.

What if the FM or IR system doesn't work?

1. Try switching receivers with the staff nearby. You could have dead batteries.

2. Any assistive listening will not work. Find a staff member and ask them to check 1) the transmitter and emitter is plugged in, and 2) the switch is on. Staff may also consult their technical manual for aux-in levels, cords are connected, and other settings.

During your conversation you can ask them if they do a sound check with the system before EVERY event. Staff can use a receiver and headphones to check – it should take less than a minute.

Sound Problems (Consumers)

What if there is no sound from the FM or IR system?

1. Try switching receivers with the staff nearby. Your receiver could have dead batteries.

2. Any assistive listening will not work. Find a staff member and ask them to check 1) the transmitter and emitter is plugged in, and 2) the switch is on. Staff may also consult their technical manual for aux-in levels, cords are connected, and other settings.

During your conversation, you can ask them if they do a sound check with the system before EVERY event. Staff can use a receiver and headphones to check – it should take less than a minute. Audio check (this website)

3. The facility “took the FM system channel” to use for other needs: microphones, musicians, other AV needs.

Why is there a buzz when I listen through an FM system?

For basic troubleshooting, there could be a few reasons.

  1. The receiver isn’t working right. Try exchanging receivers.
  2. It could be that the FM channel that the building uses is busy. Inquire with the operator/manager to see if another channel.
  3. There is an EMI problem. On this website, visit the technical section on neckloops.
How do I know if my receiver is on the right channel?

Ask the staff.

What if I experience a lip-sync issue?

The sound you hear through the system should sync with lip reading. Contact the management of the facility and ask them to troubleshoot latency issues and correct.

What if I hear an echo when using the system?

There should be no echo caused by the delay in the assistive listening system (latency). Contact the management of the facility and ask them to troubleshoot and correct.

Infrared (IR) Systems (Consumers)

Why does the IR system go on and off?

IR receivers need a direct signal from the IR transmitter. If the signal is blocked by you or someone else, even your hand or a purse, the signal will stop or you may hear intermittent static.

  1. First find or ask a staff member the location of the emitter. 
  2. Then try moving your receiver from your waist to shoulder height and ‘aim’ it towards the emitter, so it’s not blocked by you, those around you, or the seats.

Technical (Staff and Consumers)

Where can I find an Owner's Manual?

Look at your equipment (transmitter or emitter) to find the manufacturer’s name and model number.  It’s helpful to take a photo on a smartphone for later reference.

  1. Search for the make/model on the internet. Many Owners’ Manuals are available in pdf format.
  2. Visit the manufacturer’s website to find more information or contact the manufacturer. A partial list of vendors is available (this website)
What if the volume is too low?
  • The AV person can check the sound level with a receiver and headphones.
  • On the mixer, the audio output feeding the FM unit can be increased.  
  • The antenna for the FM transmitter needs to be in a good location.
  • Read Steve Frazier’s article:  The Neckloops Don’t Work- A Possible Cause (2023)
Latency

There should be no latency.

Audio test: for consumers and AV staff (pre-event)
Users will be frustrated if they must wait until the start of your event* to verify that your assistive listening system (ALS) has been turned on and any borrowed receiver equipment is operational. Most folks are reluctant to seek help once the program is underway.
 
Audio file and more info (this website)

Related webpages

Neckloops – information, how to use, and troubleshooting

For additional FAQ, please see: