Multitech CDMA Guía de usuario descargar pdf (Pagina 65)

Part 2 – Extended AT Commands Appendix B – Acronyms and Definitions

CDMA 1xEV-D0 AT Commands Reference Guide (Document S000482B) 65

Appendix C – Acronyms and

Definitions

Acronym or Term Definition

AGC Automatic Gain Control

Cellular 800MHz radio spectrum air interface

dB Decibel = 10 x log10 (P1/P2) (Power dB)

Decibel = 20 x log

10 (V1/V2) (Voltage dB)

dBm Decibels, relative to 1 mW - Decibel(mW) = 10 x log10

(Pwr (mW)/1mW)

FER Frame Error Rate – a measure of receive sensitivity

GPS Global Positioning System—a system that uses a series of 24

geosynchronous satellites to provide navigational data

IS-95 2G radio standards targeted for voice (cdmaONE)

MHz MegaHertz = 1e6 Hertz (Hertz = 1/second)

PCS Personal Communication System - PCS spans the 1.9GHz radio spectrum

PDE Position Determination Entity—the device that the mobile communicates

with for assistance in acquiring a GPS location fix

response A response from the modem that is issued prior to a result code

result code A numeric or text code that is returned after all commands (except resets)

RF Radio Frequency

Sensitivity (RF) Measure of lowest power signal that the receiver can measure

1 2 ... 60 61 62 63 64 65 66 67

Sin comentarios

Multitech CDMA Guía de usuario Pagina 65