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NENA ENP STUDY GUIDE BRAND
NEW OFFICIAL QUESTIONS WITH
ANSWERS.
VLF frequency range
Very Low Frequencies - 10-30 kHz
LF frequency range
Low Frequencies - 30-300 kHz
MF frequency range
Medium Frequencies- 300-3000 kHz
HF Frequency Range
High Frequency- 3-30 MHz
VHF Frequency Range
Very High Frequency - 30-300 MHz
UHF Frequency Range
Ultrahigh Frequency 300-3000 MHz
SHF Frequency Range
Super High Frequency 3-30 GHz
EHF Frequency Range
Extremely High Frequencies 30-300 GHz
VHF Low-Band Freq range
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39-72 MHz
VHF Low Band
Frequencies in this band tend to travel greater distances than
those of a higher frequency, however, there can be interference
problems with atmospheric skip.
VHF High Band
Frequency band that is typically used by public safety. Preferred
by rural agencies as the signals in this band tend to provide better
coverage in uneaven terrain and wooded areas. 150-170MHz
UHF- Ultra High Frequency
Frequencies in this band inclide 400, 500, 700, 800 and 900MHz
and are typically used by police, fire and ems in day to day
operations.
Trunked
In a _________ radio system, all users share the same radio
frequencies.
Most conversations are of short duration and not all users
need to access the system at the same time.
Trunked radio systems are efficent use of the spectrum for two
basic reasons:
5 watts
Portable radios typically transmit___watts.
100 watts
Mobile radios may transmit as high as ___watts.
Simplex Radio System
NENA ENP STUDY GUIDE BRAND
NEW OFFICIAL QUESTIONS WITH
ANSWERS.
VLF frequency range
Very Low Frequencies - 10-30 kHz
LF frequency range
Low Frequencies - 30-300 kHz
MF frequency range
Medium Frequencies- 300-3000 kHz
HF Frequency Range
High Frequency- 3-30 MHz
VHF Frequency Range
Very High Frequency - 30-300 MHz
UHF Frequency Range
Ultrahigh Frequency 300-3000 MHz
SHF Frequency Range
Super High Frequency 3-30 GHz
EHF Frequency Range
Extremely High Frequencies 30-300 GHz
VHF Low-Band Freq range
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39-72 MHz
VHF Low Band
Frequencies in this band tend to travel greater distances than
those of a higher frequency, however, there can be interference
problems with atmospheric skip.
VHF High Band
Frequency band that is typically used by public safety. Preferred
by rural agencies as the signals in this band tend to provide better
coverage in uneaven terrain and wooded areas. 150-170MHz
UHF- Ultra High Frequency
Frequencies in this band inclide 400, 500, 700, 800 and 900MHz
and are typically used by police, fire and ems in day to day
operations.
Trunked
In a _________ radio system, all users share the same radio
frequencies.
Most conversations are of short duration and not all users
need to access the system at the same time.
Trunked radio systems are efficent use of the spectrum for two
basic reasons:
5 watts
Portable radios typically transmit___watts.
100 watts
Mobile radios may transmit as high as ___watts.
Simplex Radio System
