MOTOTRBO DP1400 portable Walkie Talkie

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You want to connect your workforce as efficiently as possible. You expect your Walkie Talkie to be affordable but flexible, so they can evolve with you. Now there’s a portable that gives you great voice communications today, and a path to crisp and clear digital voice communications when you’re ready.

Versatile and powerful, MOTOTRBO™ combines the best of two-way radio functionality with the latest analogue and digital technology. The MOTOTRBO portfolio offers the right device for the right user, from voice-only portables to feature-rich voice and data radios.

The rugged MOTOTRBO DP1400 is available as an analogue/digital radio that offers all the benefits of the latest technology – from superior audio to greater coverage to longer battery life. This affordable portable

is compatible with advanced MOTOTRBO features you’ll find are business-essential, for example a transmission can be interrupted to prioritise critical communications.
MOTOTRBO DP1400 portable RADIO
You can also choose the analogue-only DP1400 radio and unlock the capabilities of digital when the time is right: all you will need is a simple software upgrade.

And whichever model you choose, the DP1400 will work seamlessly with the radios you have today.

Now you can improve the efficiency of your operation with easy-to-use voice communication that’s right for you

When you need a simple, reliable, cost-effective communication solution to help multiple work crews connect, coordinate and collaborate, DP1400 two-way portable radios are made to get the job done right. With their easy-to-use ergonomics and crisp, clear audio, now your teams can work more efficiently.

Unleash the power of your DP1400 radios with Motorola Original® accessories. They’re the only accessories designed, built and tested with your radio to optimise its performance – see the separate DP1400 accessory fact sheet for the full portfolio.


A construction worker carries his DP1400 as an essential part of his toolkit. The digital technology gives him excellent coverage across the entire site. And it has significantly better battery life too, so he knows he’ll have reliable voice communications all day long.

The manufacturing team in a parts factory relies on DP1400 portables to coordinate operations. The radio’s digital noise-cancelling software filters out the worst of the background noise, allowing them to hear clearly over loud machinery. Factory capacity is expanding, so they’re running MOTOTRBO Dual Capacity Direct Mode, which can fit twice as many calls into the same spectrum.

A security guard uses his DP1400 to alert the control room to some suspicious activity. The radio’s intuitive design is easy to use in the dark, and even when he speaks softly, he knows that the digital AGC (Automatic Gain Control) will automatically boost the volume so he’s heard clearly back in the office. And if it comes to the worst, he can use one of the programmable side buttons to call for help – with one touch.


We’ve designed the DP1400 2 Way Radio to be as efficient to operate as it is cost-effective to buy. That’s why we’ve integrated the powerful fleet management capabilities of Motorola’s Radio Management solution into every radio.

Gain even greater efficiency when you migrate to digital. Your radio will operate up to 40% longer than analogue on the same battery – and you get twice the capacity from the same 12.5 kHz channel, using our Dual Capacity Direct Mode feature.


Make sure your new DP1400 radios are ready when you are. We can bring together the right experts and processes to help you integrate DP1400 radios into your business, quickly and cost-effectively. This

includes Coverage Mapping, Site Integration and Device Programming.


The DP1400 is made to last. It is backed by a two-year standard warranty and a minimum one-year warranty for Motorola-branded accessories. Moreover, the design has been proven tough in Motorola’s unique and gruelling Accelerated Life Test program, in which the radio must survive a simulated 5 years of hard service before it is accepted. In addition, optional Service from the Start provides multi-year peace of mind with fast repair turnaround times, expert telephone technical support and access to the latest software releases2; all backed by Motorola’s globally integrated services infrastructure, highly qualified support technicians and certified repair facilities.

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Inventor of The 2 way radio

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The pioneer nonpareil of wireless telecommunications is Al Gross. In 1938, he invented the walkie-talkie. In 1948, he pioneered Citizens’ Band (CB) radio. In 1949, he invented the telephone pager. His other inventions include the basics of cordless and cellular telephony.

Gross was born in Toronto in 1918, but grew up in Cleveland, Ohio. He discovered his lifelong enthusiasm for two Way Radio on a steamboat trip on Lake Erie at age 9, after the ship’s radio operator let him listen to the wireless. By age 12, Gross had turned his basement into a radio headquarters, with equipment patched together from junkyards. At age 16, he obtained his amateur radio license — still in effect today.

Gross’ interest and ability had increased by the time he entered the BSEE program at Cleveland’s Case School of Applied Sciences (now part of Case Western Reserve University) in 1936. Determined to exploit the unexplored frequencies above 100 MHz, Gross set about inventing a mobile, lightweight, hand-held two-way radio. In two years, Gross had invented and patented the “walkie-talkie” (1938).

At that time, the Communications Group of the US Office of Strategic Services (OSS) was eager to develop a portable, two-way, air-to-ground communications system. The OSS recruited Gross, who worked for them throughout World War II. By 1941, Gross designed both a ground unit, “Joan,” and an airborne unit, “Eleanor,” which communicated with each other via Hertzian radio waves in a manner virtually impossible to monitor, even behind enemy lines.

The units had an effective range of about 30 miles. The transceiver of the ground unit weighed only 3 1/2 pounds, with a collapsible antenna, and was powered by two B and two D batteries. It could easily be carried and hidden by a soldier on hostile ground. The airborne unit, carried most often in British “Mosquito” bombers, was more complicated, heavier, and fitted with an adjustable, external antenna to transmit and receive at pre-arranged polarization. Although Gross’ Top Secret system was not declassified until 1976, the US Joint Chiefs of Staff have called it one of the most successful wireless intelligence gathering methods ever employed.

After the War, the FCC, which had become aware of Gross’ work, allocated the first frequencies for personal radio service, the Citizens Radio Service Frequency Band (1946). Gross formed a company, Citizens Radio Corporation, to produce two-way radios for personal use; in 1948, his company�ipment was the first to receive FCC approval for use in the new “Citizens’ Band.” Gross sold about 100,000 units himself, most of them to farmers and to the US Coast Guard; he also licensed the technology to various electronics companies.

In 1949, Gross made another breakthrough: he adapted his two-way radios for cordless remote telephonic signaling. That is, he invented and patented the telephone pager, by building discriminating circuitry into a pocket-sized wireless receiver that responded selectively to specific signals. Gross intended for his invention to be used by doctors; and so he attended a medical convention in Philadelphia that year. Nearly all of those healthcare professionals worried the device would upset their patients or even interrupt their golf games. However, New York’s Jewish Hospital did implement Gross’ pager system the next year (1950).

In the 1950s, Gross tried — again, in vain — to interest US telephone companies in his inventions and ideas for mobile telephony. Bell Telephone was not interested, and other companies were afraid of Bell’s monopoly on transmission lines. The FCC, to which Gross had demonstrated his pager system in 1950, finally approved his transceivers in 1958.

Gross continued to invent, earning a total of 12 patents, through the 1950s and ’60s. Eventually, he began working for large corporations, such as Sperry and General Electric, as a specialist in microwave and other electronic communications systems. Since 1990, he has been Senior Staff Engineer at Orbital Sciences Corp.’s Chandler, Arizona facility, where he directs analysis of various electromagnetic elements of aerospace, satellite and military systems.

Besides working full-time, Gross also pursues personal projects. But his greatest enthusiasm is for the presentations he frequently gives to local elementary and high school students on technology and invention. Thus, as Gross likes to put it, “People learn from the old guy who did it the hard way.”

Gross was too far ahead of his time to cash in on his inventions: his patents expired long before the public was ready for CB radio, cell phones and pagers. But his love of the work outweighs any regrets: he always smiles when he says, “If I still had the patents on my inventions, Bill Gates would have to stand aside for me.”

On the other hand, Al Gross has been rich in honors and awards. He has followed up Commendations from the US Defense Department (1969) and President Reagan (1981) with about a dozen awards from national organizations like the IEEE. Most recently, Al Gross won the 2000 Lemelson MIT Lifetime Achievement Award. Gross was honored at the sixth annual Lemelson-MIT Awards Ceremony, held at the American Museum of Natural History in New York on April 27, 2000. .

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