Fiber-Mid -Split-Quizlet Flashcards
US standard frequecies
5 -42 Mhz
Upstream mid split
frequencies
5 - 85 Mhz
OFDMA has thas carrier and
time duration to send data
25 kHZ and 40 microseconds
The region that seperates the US and DS portions of the
spectrum is called this
Transition Band
What % did Comcast see an increase in the US during the
pandemic
0.63
Comcast goal is by 2025 have
upload speed of
300 Mbps
OFDM
Orthanganol Frequency Division Multiplexing
OFDM bandwitch can up as
high as
192 Mhz
Comcast uses bandwidth of
OFDM
192 MHz
Single user transmits over all
subcarrier
OFDM
multiple modems transmitting
at the same time, sharing the spectrum
OFDMA
OFDMA is made up of mini
slots which are referred to as
Blocks
OFDMA
Orthogonal Frequency Divison Multiple Access
OFDMA frquency starts
where
39.4 Mhz
OFDMA frequency ends
85 Mhz
