CPI Exam/3.65/SAS/CBRS Questions with
Verified Correct Answers
CBRS
citizens broadband radio service
CBRS frequency
3550-3700mhz
When was CBRS established?
2015 by the FCC
3 Tiers of CBRS
incumbents, PAL, and GAA
Incumbents
Shipborne radar, ground based radar, fixed satellite service earth stations 3600-3700, and
wireless broadband 3650-3700
PAL
Priority access license - auctioned by FCC - each PAL is the size of a county - covers 10mhz
PPA
PAL protection area
CBSD
CBRS device
ESC
, environmental sensing capability
Who defines CBRS?
FCC, Winnforum, CBRS-A
Types of parameters
Required, optional, REG-conditional
Cat A - require CPI?
only if it cannot determine its own location
Cat A - indoors?
Yes
Cat A - outdoors?
Only if below height limit
Cat A - transmit power limit
30dBm/10mHz to 20dBm/mHz
Cat A - used on moving object?
No
Cat B - require CPI?
Yes
Cat B - indoors?
No
Cat B - outdoors?
Verified Correct Answers
CBRS
citizens broadband radio service
CBRS frequency
3550-3700mhz
When was CBRS established?
2015 by the FCC
3 Tiers of CBRS
incumbents, PAL, and GAA
Incumbents
Shipborne radar, ground based radar, fixed satellite service earth stations 3600-3700, and
wireless broadband 3650-3700
PAL
Priority access license - auctioned by FCC - each PAL is the size of a county - covers 10mhz
PPA
PAL protection area
CBSD
CBRS device
ESC
, environmental sensing capability
Who defines CBRS?
FCC, Winnforum, CBRS-A
Types of parameters
Required, optional, REG-conditional
Cat A - require CPI?
only if it cannot determine its own location
Cat A - indoors?
Yes
Cat A - outdoors?
Only if below height limit
Cat A - transmit power limit
30dBm/10mHz to 20dBm/mHz
Cat A - used on moving object?
No
Cat B - require CPI?
Yes
Cat B - indoors?
No
Cat B - outdoors?