Recent content by Mickydawg25

f=875000000 c=300000000 using ((4*pi*d*f)/c)^2=FSPL ((4*3.14*1100*875000000)/300000000)^2=FSPL 10log(FSPL)= losses in dB = 92.1dB assuming 0.1dB attenuation per each antenna Received Power (dBm) = Transmitted Power (dBm) + Gains (dB) − Losses (dB) Pr=30dbm + 0 - 92.1dB - 0.2dB...

are the losses the free space path losses? ((4*3.14*1100*875000000)/300000000)^2 is the gain the attenuation ie G -0.1dB? Power=1watt=30dB?

Homework Statement A signal needs to be transmitted over 1.1km, with 12Hkz bandwidth on FM carrier. Carrier freq=875MHz. Allowed up to 1W carrier power transmitted and received thru omnidirectional antennas. antennas low loss, max attenuation = 0.1dB Homework Equations Received...

Homework Statement calculate the frequency deviation using an approximate technique Homework Equations input analogue signal is 1.2kHz min bandwidth to avoid over-sampling is 3.6kHz signal transmitted over 1.1km with a 12kHz bandwidth on a FM carrier Carrier freq is in the GSM reverse...

OK this is the system 1200Hz analogue signal encoded using 8 level PCM This spec results in a bit rate of 6600 bit/s Signal transmitted over 1100m, 1200Hz bandwidth, FM carrier. Carrier freq is 875000000Hz. Allowed 1W carrier Pt and Pr. antennas - omnidirectional. antenna...

With regards to cellular radio systems1. how many bits of information does each cycle of a sinewave carry on a minimum channel? modulator characteristics 2. A system has narrowband fm characteristics.. name me a rule which is an approximate technique to find the necessary freqeuncy deviation...