Кнопка PTT Falco Communications System V60 для раций Kenwood и Baofeng

Тангента универсальная "каскад" — от радиосвязи FIDEM: это надежное устройство, созданное российским производителем гарнитур, тангент и аксессуаров для радиостанций компанией FIDEM. Эта модель оснащена одноканальной кнопкой, что обеспечивает двустороннюю радиосвязь без необходимости подключения гарнитуры. Хорошо зарекомендовала себя как в зоне военных действий, так и в военно-тактических играх.

Тангента универсальная "каскад" - это гибрид одноканальной тангенты и спикера. При необходимости Вы можете использовать ее с гарнитурами, активными наушниками либо как отдельное переговорное устройство (спикер).

Штекер тангенты для подключения к рации: тип Kenwood
Разъем для подключения гарнитуры: Mil-Plug.
Тангента универсальная "каскад" имеет возможность смены военной и гражданской распайки простым нажатием кнопки.

Широкая совместимость с различными брендами раций:
тангента совместима с большинством раций, включая популярные модели Baofeng, Kenwood, Vector и другие.

Высокое качество звука от FIDEM:
Тангента для рации обеспечивает чистое звучание, что позволяет четко и ясно передавать информацию.

Износостойкая обмотка и усиленные места стыков провода:
Провод тангенты покрыт износостойкой обмоткой, что предотвращает заломы и механические повреждения. Места стыков провода дополнительно усилены для дополнительной защиты.

Удобное крепление на амуниции:
Тангента оснащена надежным креплением для удобной фиксации на амуниции. Корпус и крепление тангенты выполнены путем 3D печати из ABS пластика.

Комфортная длина кабеля и три цветовых решения:
Доступны три цветовых решения: песочный, олива и черный.

Покупка в рассрочку от Яндекс Маркета:
Вы можете приобрести тангенту FIDEM в рассрочку (сплит) от Яндекс Маркета, что делает ее еще более привлекательной.

Bluetooth Гарнитура для рации Baofeng, Kenwood, Vector.

Позволяет полностью избавится от проводов, сохранив возможность передавать и принимать вызовы с рации. Проста в использовании, поставляется настроенной и готовой к работе. Гарнитура оборудована контроллером, подключаемым к рации, беспроводной Bluetooth кнопкой PTT с возможностью крепления на палец или к одежде, и беспроводной Bluetooth гарнитурой-наушником с возможностью регулировки громкости. Все блоки гарнитуры имеют встроенные аккумуляторы

Основные характеристики:

* Версия Bluetooth V4.0

* Диапазон частот 2,4 GHz

* Режим работы HFP1.5 A2DP AVRCP

* Время заряда 1-2,5 H

* Обсуждение диапазон

This is the first book primarily about the satellite payload of satellite communications systems. It represents a unique combination of practical systems engineering and communications theory. It tells about the satellites in geostationary and low-earth orbits today, both the so-called bent-pipe payloads and the processing payloads. The on-orbit environment, mitigated by the spacecraft bus, is described. The payload units (e.g. antennas and amplifiers), as well as payload-integration elements (e.g. waveguide and switches) are discussed in regard to how they work, what they do to the signal, their technology, environment sensitivity, and specifications. At a higher level are discussions on the payload as an entity: architecture including redundancy; specifications–what they mean, how they relate to unit specifications, and how to verify; and specification-compliance analysis (“budgets”) with uncertainty. Aspects of probability theory handy for calculating and using uncertainty and variation are presented. The highest-level discussions, on the end-to-end communications system, start with a practical introduction to physical-layer communications theory. Atmospheric effects and interference on the communications link are described. A chapter gives an example of optimizing a multibeam payload via probabilistic analysis. Finally, practical tips on system simulation and emulation are provided. The carrier frequencies treated are 1 GHz and above. Familiarity with Fourier analysis will enhance understanding of some topics. References are provided throughout the book for readers who want to dig deeper. Payload systems engineers, payload proposal writers, satellite-communications systems designers and analysts, and satellite customers will find that the book cuts their learning time. Spacecraft-bus systems engineers, payload unit engineers, and spacecraft operators will gain insight into the overall system. Students in systems engineering, microwave engineering, communications theory, probability theory, and communications simulation and modelling will find examples to supplement theoretical texts.

Комплект портативных раций из 4 штук Baofeng BF-9700, влагозащищенная, с гарнитурой.

Если вам нужна надёжная связь в сложных погодных условиях, мы рекомендуем портативную рацию Baofeng BF-9700. Она выполнена во влагозащищённом корпусе, который выдерживает кратковременное (до пяти минут) погружение в воду на глубину до одного метра. Предлагаемую модель отличает высокая практичность в пользовании.

Рация работает в диапазоне UHF на частотах 400–520 МГц, обеспечивая связь на 16 каналах. Увеличенный до 265 г вес рации объясняется наличием мощного аккумулятора ёмкостью 1 800 mAh. Полной зарядки батареи с запасом хватает на пару сутки-двое активного пользования.

Аппарат сохраняет работоспособность в диапазоне температур от -20 до +60 °C при любой влажности воздуха. Рация в равной мере пригодна для профессионального и частного пользования.

Устройство бюджетной ценовой категории станет неоценимым помощником для работников охраны, монтажников, строителей и спасателей, поклонников рыбалки и охоты, туристов и других любителей активного образа жизни. В обычной обстановке рация обеспечивает надёжную двустороннюю связь на расстоянии до 2–5 км, в условиях городской застройки до 1 км. В идеальных условиях дальность связи достигает 10 км и более.

Комплект поставки:

Гарнитура 4, Антенна 4, АКБ 4, З/У 4, Ремешок 4, Клипса 4, Инстр. на англ. яз. 4, на Рус. яз. онлайн

This book provides a comprehensive view of green communications considering all areas of ICT including wireless and wired networks. It analyses particular concepts and practices, addressing holistic approaches in future networks considering a system perspective. It makes full use of tables, illustrations, performance graphs, case studies and examples making it accessible for a wide audience.

This is a modern textbook on digital communications and is designed for senior undergraduate and graduate students, whilst also providing a valuable reference for those working in the telecommunications industry. It provides a simple and thorough access to a wide range of topics through use of figures, tables, examples and problem sets. The author provides an integrated approach between RF engineering and statistical theory of communications. Intuitive explanations of the theoretical and practical aspects of telecommunications help the reader to acquire a deeper understanding of the topics. The book covers the fundamentals of antennas, channel modelling, receiver system noise, A/D conversion of signals, PCM, baseband transmission, optimum receiver, modulation techniques, error control coding, OFDM, fading channels, diversity and combining techniques, MIMO systems and cooperative communications. It will be an essential reference for all students and practitioners in the electrical engineering field.

Communications technologies increasingly pervade our everyday lives, yet the underlying principles are a mystery to most. Even among engineers and technicians, understanding of this complex subject remains limited. However, there is undeniably a growing need for all technology disciplines to gain intimate awareness of how their fields are affected by a more densely networked world. The computer science field in particular is profoundly affected by the growing dominance of communications, and computer scientists must increasingly engage with electrical engineering concepts. Yet communications technology is often perceived as a challenging subject with a steep learning curve. To address this need, the authors have transformed classroom-tested materials into this accessible textbook to give readers an intimate understanding of fundamental communications concepts. Readers are introduced to the key essentials, and each selected topic is discussed in detail to promote mastery. Engineers and computer scientists will gain an understanding of concepts that can be readily applied to their respective fields, as well as provide the foundation for more advanced study of communications. Provides a thorough grounding in the basics by focusing on select key concepts Clarifies comprehension of the subject via detailed explanation and illustration Helps develop an intuitive sense of both digital and analog principles Introduces key broadcasting, wireless and wired systems Helps bridge the knowledge gap between software and electrical engineering Requires only basic calculus and trigonometry skills Classroom tested in undergraduate CS and EE programs Communications Engineering by Lee, Chiu, and Lin will give advanced undergraduates in computer science and beginning students of electrical engineering a rounded understanding of communications technologies. The book also serves as a key introduction to specialists in industry, or anyone who desires a working understanding of communications technologies.

Even as newer cellular technologies and standards emerge, many of the fundamental principles and the components of the cellular network remain the same. Presenting a simple yet comprehensive view of cellular communications technologies, Cellular Communications provides an end-to-end perspective of cellular operations, ranging from physical layer details to call set-up and from the radio network to the core network. This self-contained source for practitioners and students represents a comprehensive survey of the fundamentals of cellular communications and the landscape of commercially deployed 2G and 3G technologies and provides a glimpse of emerging 4G technologies.

Professor Andreas F. Molisch, renowned researcher and educator, has put together the comprehensive book, Wireless Communications. The second edition, which includes a wealth of new material on important topics, ensures the role of the text as the key resource for every student, researcher, and practitioner in the field. —Professor Moe Win, MIT, USA Wireless communications has grown rapidly over the past decade from a niche market into one of the most important, fast moving industries. Fully updated to incorporate the latest research and developments, Wireless Communications, Second Edition provides an authoritative overview of the principles and applications of mobile communication technology. The author provides an in-depth analysis of current treatment of the area, addressing both the traditional elements, such as Rayleigh fading, BER in flat fading channels, and equalisation, and more recently emerging topics such as multi-user detection in CDMA systems, MIMO systems, and cognitive radio. The dominant wireless standards; including cellular, cordless and wireless LANs; are discussed. Topics featured include: wireless propagation channels, transceivers and signal processing, multiple access and advanced transceiver schemes, and standardised wireless systems. Combines mathematical descriptions with intuitive explanations of the physical facts, enabling readers to acquire a deep understanding of the subject. Includes new chapters on cognitive radio, cooperative communications and relaying, video coding, 3GPP Long Term Evolution, and WiMax; plus significant new sections on multi-user MIMO, 802.11n, and information theory. Companion website featuring: supplementary material on 'DECT', solutions manual and presentation slides for instructors, appendices, list of abbreviations and other useful resources.