// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// keyboard shortcuts
/focus search
Escclear search · close calc
Enteropen first result
↑↓navigate list
?toggle this panel
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
sci.Shannon-channel-capacity Calculator
Calculates Shannon channel capacity C = B × log₂(1 + SNR) in bits/second, the theoretical maximum data rate for a noisy channel. At 1 MHz bandwidth and SNR = 10 dB (10×), capacity = 3.46 Mbps — 5G NR uses 100 MHz bandwidth and up to 256-QAM to approach Shannon limits.
Inputs
B Hz
Horizontal extent perpendicular to the length.
Snr Db
Reference formula or conversion factor shown for context.
N Tx
Count of items or occurrences.
N Rx
Count of items or occurrences.
Results
SISO capacity C (Mbps)
Reference formula or conversion factor shown for context.
MIMO capacity estimate (Mbps)
The value at the specified point or condition.
spectral efficiency SE (bps/Hz)
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.
C = B·log₂(1+SNR)
Sample size or count used in the calculation.
SNR linear
Sample size or count used in the calculation.
capacity headroom
Buffer between current performance and a limit or target. Positive headroom is safety margin; zero or negative headroom means the limit has been hit.