Motorola GP338 Plus Display Radio

The GP338 ensures that there is clear communication by the additional features which ensures that it meets the increasing communication demands
Features
MDC1200 Signaling
Extreme of 128 channels to organist work groups with ease and efficiency
14-Character Alpha Numeric Dot-Matrix Display
An easy to read on screen display indicator notifies users of signal strength in their vicinity
Easy to read on-screen LCD display (Bowman and Esche2016).
Allows users easy access to local landlines telephone networks 
LED battery gauge
Switchable RF power level
Lithium Ion Battery Option
Repeater or Talk around enable/disable
Tight/Normal Squelch
Light weight


The keypad illumination offers the required visibility to operate in dark areas
The display allows the communication of very essential information such as PTT ID radio strength indicator and signal strength indicator 
The user-friendly icons make the information easy to read and understand  

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The GP328 has a special voice compression and also low level expansion technology.
This qualities of the GP328 voice enables the stronger and stronger audio quality (Belin and Zatorre 2013). 
The technology used in the design of the GP328 voice enables one to keep communicating in even noisy environments
The battery is designed with a tri-colour LED to indicate  the battery strength this will aid in avoiding the failed communications with the early warning of the low battery strength. 
The battery has a high reliability, low cost and compact size
The battery is made up of waterproof material which makes 
The colours can allow the user to plan for his or her
 communications.

Motorola Walkie talkie- GP328 has a flexible choice of a battery such as;
NiDC Battery
 High Capacity NiMH Battery 
Ultra High Capacity NiMH Battery 
Lithium Ion Battery(McCluer 2011)
The GP328 has an emergence siren which is easy to access by just a single touch of the button (Current and Kelly 2012). 
The emergency siren produces a piercing alarm which enables the users to seek for assistance in case of the critical situations
The siren can reduce the number of casualties in case  of accidents at the work places (De Lorenzo and Eilers 2015). 
Human factors refers to the study of man in relation to the equipment and environment (Endsley 2017).
Human factors ensures efficient engineering of machines for human use.
The main goals in human factors engineering are to consider any man/machine combination as a total system to insure that the equipment operational requirements do not exceed human abilities (Wickens et al2015).

The GP328 has a wide range of accessories to enable it to be customized in order to suit ones needs such (Motorola’s 2013);
The proper headset
Microphone
External batteries
Chargers or carry cases (Larcher et al 2014).
The accessories are built with the highest quality standards to ensure maximum performance

Belin, P., & Zatorre, R. J. (2013). Adaptation to speaker\'s voice in right anterior temporal lobe. Neuroreport, 14(16), 2105-2109.
Bowman, G., & Esche, G. (2016). U.S. Patent No. 5,764,034. Washington, DC: U.S. Patent and Trademark Office.
Current, J., & O\'Kelly, M. (2012). Locating emergency warning sirens. Decision Sciences, 23(1), 221-234.
De Lorenzo, R. A., & Eilers, M. A. (2015). Lights and siren: A review of emergency vehicle warning systems. Annals of emergency medicine, 20(12), 1331-1335.
Endsley, M. R. (2017). Toward a theory of situation awareness in dynamic systems. In Situational Awareness (pp. 9-42). Routledge.
Kozu, A. (2012). U.S. Patent No. 6,486,870. Washington, DC: U.S. Patent and Trademark Office.

Larcher, A., Lee, K. A., Martínez, P. L. S., Nguyen, T. H., Ma, B., & Li, H. (2014). Extended RSR2015 for text-dependent speaker verification over VHF channel. In Fifteenth Annual Conference of the International Speech Communication Association.
McCluer, S. (2011). Battery technology for data centers and network rooms: lead-acid battery options. APC White Paper, 30.
McZeal Jr, A. (2014). U.S. Patent No. 6,763,226. Washington, DC: U.S. Patent and Trademark Office.
MOTOROLA’S, S. M. A. L. L. E. S. T. (2013). Motorola.
Wickens, C. D., Gordon, S. E., Liu, Y., & Lee, J. (2015). An introduction to human factors engineering



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