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Public Safety Radio Bands

Public Safety Radio Bands

Public Safety Radio Bands VHF-Low Band: 25 MHz to 50 MHz VHF-High: 138 MHz to 174 MHz UHF: 408 MHz to 512 MHz 700 MHz (new) 800 MHz 4.9 GHz (new) Why is this a problem? Radios only operate in one band! Multi-band radios are rare and expensive

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1.06k views • 62 slides
Public Safety Radio Bands

Public Safety Radio Bands

Public Safety Radio Bands. VHF-Low Band: 25 MHz to 50 MHz VHF-High: 138 MHz to 174 MHz UHF: 408 MHz to 512 MHz 700 MHz (new) 800 MHz 4.9 GHz (new). Why is this a problem?. Radios only operate in one band! Multi-band radios are rare and expensive

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904 views • 62 slides
Rozszerzenia reaktywne

Rozszerzenia reaktywne

Rozszerzenia reaktywne. Rafa? Konrad Paw?aszek. z arz?dzanie sekwencjami zdarze?. 16 kwietnia 2013r. Wykorzystanie Rx. Wzorzec obserwatora. Interfejsy podstawowe. public interface IObserver < in T> { void OnNext (T value ); void OnError ( Exception error);

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248 views • 16 slides
Radio Communion Modes

Radio Communion Modes

Blackberry REACT Presentation. Radio Communion Modes. Simplex Repeater Trunking. Presented to Blackberry REACT , September 2, 2009 By Phil Henderson, KF6ZSQ. Blackberry REACT Presentation. Radio Communion Modes. Simplex. Point to point communications between radios

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391 views • 15 slides
1NF, 2NF, and 3NF

1NF, 2NF, and 3NF

1NF, 2NF, and 3NF. By Vishal Punjabi. Basics. Lets first review Superkey Candidate Key Primary Key. Superkey. A set of one or more attributes, which taken collectively, uniquely identifies a tuple of a relation is referred to as a the superkey of the relation schema. Example.

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252 views • 15 slides
[PRACTICE NAME] [PRACTICE ADDRESS] [CITY, STATE ZIP PHONE]

[PRACTICE NAME] [PRACTICE ADDRESS] [CITY, STATE ZIP PHONE]

[PRACTICE NAME] [PRACTICE ADDRESS] [CITY, STATE ZIP PHONE]. [PRACTICE NAME] [PRACTICE ADDRESS] [CITY, STATE ZIP PHONE]. NAME___________________________________________ DATE ___________________________________________.

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121 views • 1 slides

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