December 2011

Long-Range Wireless Outdoor Intercom

MURS Multi-Mile Long-Range Wireless Outdoor Intercom

MURS Multi-Mile Long-Range Wireless Outdoor Intercom

A new long-range wireless outdoor intercom enables you to communicate at distances that no other wireless intercom is capable of. Most wireless intercoms communicate at a range  of up to 1000 feet. With the Multi-Mile Wireless system you can reach distances measured in miles depending on how it’s used. You can adjust range by changing between the intercom’s one-watt or two-watt setting.  The one-watt setting works for shorter distances or when using battery power.

To achieve maximum range, there is an external antenna that you can mount as high as possible. The higher it’s mounted, the longer range you’ll get. The antenna comes with about three feet of cable, but you can add more to raise the antenna higher.

The long-range wireless intercom also has internal switch that can be used to activate a door or gate controller, switch on a light, sound an alarm, or for any application where remote control of an on/off switch is needed.  A radio that has the ability to send the tones to activate the switch is needed.

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Motorola CLP1040 Review

The Motorola CLP1040 is the smallest business-class two-way radio on the market and it fits nicely in a wide variety of applications, even outside the hospitality and retail industries that it is designed for.


Motorola CLP1040 with Belt ClipThe greatest advantage of the CLP1040 is its small size. It measures at just 3.5 x 2 x 0.75 inches with a weight of 2.38 ounces using the standard battery and 3 ounces with a high capacity battery. It will truly fit in the palm of your hand. One of the biggest complaints to 2-way radio usage is that users don’t like wearing a larger or heavier radio. With this radio, users will barely know it’s there.

Along with its tiny size Motorola also came up with another smart design element. All other two-way radios have a belt clip for carrying the radio. This may be fine if you’re wearing a belt. However, one of Motorola’s target markets was the retail industry. If you think about the type of clothing being worn by employees in a high-fashion woman’s clothing store, there aren’t a lot of belts. So Motorola came up with a magnet-mount option for the CLP series. The wearer simply places one side of the magnet mount inside the clothing, and then place the radio directly on top of that. Since the radio is sleek and light, it will stick almost anywhere. Of course they do have a belt-clip option available too.

Power Output

Since the CLP only has one watt of power, the range it will transmit will not be as far as 2-way radios with higher wattage. Plus it has a built-in antenna so that may not give the you the range of a longer two way radio antenna. But for most applications, one watt will be more than sufficient. The good part of this lower wattage is that battery life is longer.

If you don’t need to transmit very far there is a half-watt setting too. You probably want to use this setting if it works well for you because that limits how far your radios transmit. That means people farther away can’t hear your conversations and since these radios are not secure, that may be to your benefit.

UHF Frequencies

The CLP1040 uses business-band UHF frequencies between 450-470 MHz to transmit and receive. The benefit of UHF is that there are a greater number of channels available, and the CLP gives you a total of 90 available frequencies to choose from. UHF is good for use inside buildings, which is the primary target market for this radio.

Motorola claims a unit-to-unit range of up to 160,000 square feet and 12 floors of building coverage. Of course you can use a repeater to increase range, but that will add extra expense and complexity to your installation.

FCC License

The UHF frequencies these radios use do require an FCC license to operate on them. At least that’s the law. In reality most people don’t get a license since the FCC makes the process too complex. If you don’t get a license, just know that someone who does get a license could complain to the FCC that you are transmitting on their frequency and you will have to stop using it. But given that there are 90 available frequencies for the Motorola CLP1040, you could just find one that doesn’t seem to be used and use that instead. If you can use the half-watt setting on the radio, that will reduce chances of interfering with other radios as well.

Military Specification Standards

In an effort to achieve standardization objectives for purchases of products used by the military and other government organizations, the U.S. Department of Defense created standards that these products must meet. You will see these standards called military standard, “MIL-STD”, or “MIL-SPEC.” These standards ensure products meet certain requirements, commonality, reliability, compatibility, and similar defense-related objectives.

The Department of Defense also has standards for two-way radios and radios that meet this standard must meet levels for such criteria as vibration, rain, salt air, sand/dust, shock (dropping), humidity, temperature as well as other factors.

The CLP1040 has been tested MIL-STD-810, which indicates it should work in some pretty tough environments, like a restaurant kitchen for instance.

Headsets Required

Motorola CLP1040 Magnet MountOne thing you need to keep in mind about the CLP 1040 is that there is no built in speaker so you will be required to use a Motorola headset. You can’t use headsets by other manufacturers since accessory jack is custom made for this radio. Fortunately Motorola has some good options, but you’ll have to pay Motorola prices for them. With that you also get a quality headset that will last a little longer than some cheap headset. The good thing about the headsets is that they screw into the CLP so they won’t pull out if the radio is bumped or dropped.

Battery Life

The Motorola CLP uses long-lasting lithium-ion batteries. The standard battery that comes with the CLP1040 has a 9 hour battery life, which should be sufficient for most business days. This life is calculated based on 5% transmit, 5% receive, and 90% standby. In situations where users communicate much more frequently than that, the high-capacity battery with a 14 hour life could be used. Changing batteries is easy so spare batteries could easily be swapped out as well.


The CLP1040 has been designed for ease of use so personnel will not need a lot of training to operate them. To transmit a user simply presses and holds the large, easy to find Push-to-Talk (PTT) button on the front of the radio, or some of the headsets have an inline PTT.

One of the challenges with a radio this small is finding a way to activate the features it has, especially when there is no display for a user to select from a menu of options. Motorola solved this problem through audio voice prompts.  Motorola calls this Voice Assisted Operation. When users press the menu button the first time, they hear the prompt “Channel” and pressing the +/- keys scrolls through the channels. Pressing the Menu button again scrolls through the other features: Monitor Mode, Channel Scan, and Call Tone. When the user lands on anyone of these, the +/- keys are used to scroll through the options or turn a feature on or off.

Smart Status Glow

There is a light ring around the PTT button that is used to indicate radio status. It is used to indicate the active channel, radio transmit & receive, scan, and battery status.

Channel Status and Scan

The light ring lights one of the following colors depending on the channel it is on. In channel scan mode, the status indicator changes to the color of the channel it locks in on:

Channel 1: Red

Channel 2: Green

Channel 3: Orange

Channel 4: Blue

Battery Status

With a short press and release of the Power/Battery button, the Smart Status Glow and Voice Assisted Operation features will give you the battery status:

Battery Level High (70 –100%): Green

Battery Level Medium (30 – 70%): Orange

Battery Level Low (10 – 30%): Red

Battery Level Critical (0 – 10%): Blinking Red

Transmit and Receive

The light ring will stay on solid when transmitting or receiving. Otherwise the light ring goes on and off in Standby mode depending on how it is programmed to operate.

Channel Scan

One feature that can be helpful for users who need more than one channel is Channel Scan. The CLP1040 has 4 channels and in channel scan mode, when the radio detects activity, it stops scanning and locks in on the active channel. This allows the user to talk and listen to the person transmitting without changing channels. This feature is especially nice for managers who may need to monitor multiple groups of team members.

Call Tone

The Call Tone feature enables users to send a tone to other radios. What this tone signifies is for you to define. One use for these could be to set up a “silent alarm” emergency assist request. If a team member is with a customer who they deem a security risk for some reason, the team member can send a tone instead of having to voice their concern while they are standing with the customer. Then another team member can respond to the tone as appropriate.

You will need a CLP Programming Cable and the Customer Programming Software (CPS) to activate this feature. You have to purchase the programming cable, but the CPS software is a free download from Motorola’s website. There are four call tones available, but only one can be activated on a radio at a time.

Monitor Mode

Monitor mode may not be what you think it is. It doesn’t allow you to listen in to a radio like a baby monitor. It is the traditional two-way radio feature that lets you listen in to the activity on a particular channel. It essentially turns of the squelch control so if there is no activity, you will hear static until you turn monitor mode off, or until there is radio activity. On traditional 2-way radios this feature is used to listen for activity before you transmit so you don’t transmit over someone whose signal may not be strong enough to break your squelch control.

Customer Programming Software

The Customer Programming Software is required to initially set the way the radio operates and to make any programming changes along the way. You should purchase at least one CLP Programming Cable (works on USB) and then download the free programming software from Motorola’s website.

The software is available in English, Latin American Spanish, and Canadian French.

Radio Cloning

After you get one radio programmed the way you like it, there is also a cloning kit available to copy settings from one radio to another without having to use the CPS software (it will work for programming the new radios too). The benefit of the cloning cable is that adding additional radios later is a simple task of hooking the cloning cable between two of the charging units that come with the radios and using the built in cloning capability to copy the settings. You will be required to purchase the CLP Series Cloning Cable Kit to do this. Up to six radios could be cloned at the same time if you also purchase the Multi-Unit Charger (MUC) Kit.


The Motorola CLP1040 is an excellent choice for applications where you need a small, light-weight two-way radio that is easy to use and comfortable to wear, and your team members don’t mind wearing a headset all day. As long as you don’t need to transmit great distances, or you are willing to put in a repeater system, this radio should work well for you. This radio is available for sale at

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Using a Strobe Light on a Wireless Callbox

When you see a wireless call box in a parking lot there is often a blue strobe light mounted on top. The purpose of the strobe light is to draw attention to the callbox when someone presses the call button on it. Then security personnel or other nearby people can see which wireless callbox called for help.

Hooking up a strobe light to the callbox is a fairly simple process. The strobe light has two pairs (4 wires) of wires coming off of it.  Two of the wires are for power. There is an  AC version that has a standard electrical plug and a DC version has just two wires for positive and negative. The other two wires are for the contact closure. These are the wires that connect to the relay on the callbox.

Then it’s a matter of programming the callbox to trigger the relay as desired.  Most instances using a strobe generally have the callbox set for “relay on when active”.  In this application, the relay is latched as long as the callbox is powered up and working.  The strobe will either stay latched until the unit times out after a period of inactivity, or it can be programmed to be turned off with an “off code” from another radio.

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