# PARAM, ERPREFDB

Bulk Data Entry Specifies the reference power value used to calculate Equivalent Radiated Power (ERP) in decibels (dB).

Parameter Values Description
ERPREFDB Real > 0.0

Default = 1.0

The Equivalent Radiated Power (ERP) in decibels can be calculated using the following equation:
${\mathit{ERP}}_{\mathit{dB}}=10.0*{\mathit{log}}_{10}\left(\mathit{RHOCP}*\frac{\mathit{ERP}}{\mathit{ERPREFDB}}\right)$
Where,
$ER{P}_{dB}$
$RHOCP$
$ERPREFDB$