Agilent Technologies Switch/Measure Uživatelský manuál stáhnout pdf (Strana 5)

Origins of measurements

GSM transmitter and receiver measurements originate from the following ETSI

and ANSI standards:

GSM 05.05/ETS 300-577. GSM and DCS1800 Radio transmission and

reception.

GSM 11.10/ETS 300-607. GSM and DCS1800 Mobile Station (MS)

conformance specification. Part 1: Conformance

specification.

GSM 11.21/ETS 300-609. Base Station System (BSS) equipment

specification. Part 1: Radio aspects.

ANSI J-STD-007. PCS1900. Air Interface Specifications.

It is worth noting specifications were written for the purposes of full type

approval and they are extensive. It is not practical to make the whole suite of

measurements in most application areas. For example, in manufacturing where

throughput and cost are key drivers, it is necessary to use a subset of the

measurements defined in the specifications above. Optimization is key; the

objective should be to test sufficiently to prove correct assembly, perform

correct calibration and assure correct field operation, but with a minimum of

expense. It is not necessary to type approve infrastructure component shipped.

This application note aims to help the reader to interpret the standards and

apply tests appropriately.

The standards can be difficult to understand, and independent parties might

interpret them differently. Agilent Technologies uses the standards as a basis

from which to design measurement algorithms.

1 2 3 4 5 6 7 8 9 10 ... 35 36

Žádné komentáře

Agilent Technologies Switch/Measure Uživatelský manuál Strana 5