What is the best frequency to use?
For industrial or commercial controls, the 433 MHz frequency band is preferred.

What happens if I inadvertently hit the controls when I am not using the system?
Most of FSL transmitters automatically "time out" after not being used for a short period of time. To send a command, the transmitter must be first turned back on.

Can another system inadvertently command my system?
FSL receivers only recognize and serve transmitters that have their unique identification registered or programmed in the receiver. Our receivers will only respond to the FSL code format.

How durable are the FSL hand held transmitters?
Our handheld transmitters are designed for the rough treatment experienced in tough industrial applications. They are the toughest in the industry. They are also designed against the dirt, grime and soot that are common in an industrial work place and are considered to be the most durable transmitters in our industry.

Can the system get stuck on a command and run out of control?
In the unlikely event a switch gets stuck in a closed mode, we can provide an over-riding safety stop button to command the equipment into a safe mode.

Do I need to get a License to install and operate your system?
FSL systems are license free. We operate in a frequency band and at a power approved by the FCC for use without a license.

How do I connect the receiver to my equipment?
We provide an installation manual with step-by-step instructions. FSL equipment is designed for a wide range of interfaces and relays. For special applications, FSL can provide special interfaces.

What can I do if the radio systems fail?
FSL can provide a manual override system which can be plugged into replace the radio system until the receiver is replaced or fixed.

Where is the antenna on the transmitter?
Some are internal but for extra range external antennas are needed.

Can I mount the receiver antenna sideways?
Yes, however it is generally not recommended. It is preferable that the aerial is in clear line of sight with the handset for optimum range.

Is the system easy to install?
Yes, we provide detailed installation manuals to guide you through the process.

Are your handheld transmitters protected from water, mud and dust?
All FSL transmitters are designed to operate in an industrial environment that includes moisture, rain, soot and dust.

Is there a low battery indicator?
Yes, a Low Battery LED indicator will alert you to a low battery we also provide a charging led.

How far can I operate the remote?
We design equipment to meet the requirements of the customer. To meet different range requirements we combine different transmitters and antennas. Depending on the equipment selected, we can transmit up to 80m with an internal antenna and over 350m with external antennas.

Why does the transmitter shut off when I am not using it?
The transmitter is shut off as a safety measure and to save battery power. It prevents the inadvertent commanding of the system when the operator is not in attendance

How long does the battery last?
We have been able to achieve extremely long battery life through the use of packet mode transmission and highly efficient circuits. Our transmitters last 130 hours in continuous operation. Our other models, such as our bellyboxes, have even longer battery life.

How do I add a new transmitter?
We provide installation instructions to program the receiver to accept a new transmitter.

What type of batteries are required?
Standard PP3 batteries are required. Alkaline batteries are recommended.

What if I damage the transmitter while under warranty or it is out of warranty?
Just return the transmitter to FSL for repair. See the Service page for instructions.