March 2012

What is an IP Rating for a Two-Way Radio?

IP stands for Ingress Protection and is a rating for enclosures of all kinds, including two-way radios.  An IP rating specifies how resistant the enclosure is to foreign objects and moisture. There are two digits in an IP rating, the first represents how well the enclosure resists penetration by solid objects. Level 1 is protection against solid objects with diameter greater than 50mm. Level 6 means it is dust tight.

The second digit is for moisture penetration into the enclosure. The range is from 1 to 9. For Level 1 dripping water (vertically falling drops) will have no harmful effect.  With Level 8 the equipment is suitable for continuous immersion in water under conditions specified by the manufacturer. Normally, this means that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects.

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Submersible Two-Way Radio has just added to their website the industrial grade, submersible 451 VHF/MURS Xtra-tough Submersible Two Way Radio which is their most durable two-way radio for heavy duty use. The radio meets the IP57 ingress protection standard which means it can be submersed in water to a depth of 3 feet for up to 30 minutes without harm. It does not have a display that could get broken or scratched yet changing channels is easy with the Channel Announcement feature that tells you what channel you’re on without even having to look at the radio. It also works well in noisy environments with a loud audio output so you’ll hear in coming calls loud and clear.

It also has two programmable side buttons and we have them pre-programmed to send 2-tone codes. The Side 1 button will activate the gate/door relay on our wireless callboxes so you can open a gate or door from a remote location. The Side 2 button is programmed to send the 2-tone code that activates the Monitor feature on their MURS Multi-Mile Long-Range Wireless Outdoor Intercom . Using it you can listen in to the area around where the intercom is installed.

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Virginia Tech Held Liable for Not Using Emergency Notification System Quick Enough

Virginia Tech was found to be negligent in their failing to notify students quickly enough about the gunman who killed four students. The jury agreed with plaintiffs that the second set of students may not have died if campus officials had notified students quickly about the first two deaths.

Since this tragedy more college campuses have been installing emergency alert systems that quickly enable administrators to get the message out via email, text messages, or other means. Since most students carry cell phones these days, it is the primary means of alert.

College Campus Emergency NotificationOne problem with using cell phones is that students may have them turned off during class, or they may have them in silent mode.  This is where adding a public address system can fill in the gaps that other emergency notification systems leave.

The problem with a wired PA system is that the expense and mess that running wire everywhere requires, often prohibits them from being used. This is where a Wireless PA system fits nicely. A wireless PA system enables placing receivers and PA horns around the campus in strategic locations in a single day without the hassles of a wired system.


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Two-Way Radios for Oil Rigs and Oil Fields

Two-way radios are an essential part of oil rig and oil field operations. In fact, there are typically a number of job positions that require 2-way radios due to the need for quick responses and real-time coordination essential in this high-risk environment. Given the harsh environment of oil fields and oil rigs, when shopping for a two-way radio, there are things you must consider. You’ll want to get a radio that is Mil-Spec or IP rated to withstand the abuse the radios will get. You can also choose between standard handheld, portable two-way radios, or fixed position, stationary radios.

For a detailed article on how to choose a two-way radio for oil fields or oil rigs, click here: Two-Way Radios for Oil Rigs and Oil Fields


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