Communication Systems

What is a base station.

• radio hardware fixed in one place
• Where your dispatch is
• a radio on your waist 
• pagers 

VHF is a abbreviation for what 

• vast help frequencies
• very high frequencies 
• very hot food 
• very helpful frequencies 

VHF mobile radios usually operate between what frequencies .

• 20 and 200 MHz
• 300 and 3000 MHz
• 30 and 300 MHz
• 40 and 400 MHz

UHF or Ultra high frequencies mobile radios operate at what frequencies 

• 25 and 25000 MHz
• 450 and 45000 MHz
• 35 and 3500 MHz
• 300 and 3000 MHz

What is the point of a repeater 

• To say the message for a seconf time
• turn high power signals into low power signals 
• top turn lower power signals into higher power signals 
• just to add a extra step in transmitting 

True or False it is never acceptable to have your phone with you when you are in the field 

• True
• False 

True or False it is never acceptable to have your phone with you when you are in the field 

• True
• False 

True or False when using a cellular / satellite telephone those are 100% private so there is no need to be professional 

• True
• False

What do scanners do

• To say the message for again 
• search through several frequencies until the message is compleated
• Its just another word for radio
• they don't do anything they are for looks