Rf Tuning And Calibration Instructions For Iris Hdb58; Introduction - Nokia NSB-9 Service Manual

NSB-9

RF Tuning and Calibration Instructions for Iris HDB58

Introduction

This document describes the methods of RF tunings and calibrations for Iris NSB-9 trans-
ceiver. RF tunings are made using automatic setup in which Phoenix software controls the
phone via FBUS and the measurement equipment via GPIB bus.
Autotune feature is designed to align the product's RF part easier and faster. By this auto-
tune component the product is tuned automatically. Manual tuning is not available.
RF tunings must be performed if any RF components are changed. RF tunings shall be
done using MJS-48 module jig. MJS-48 jig loss figures can be found from "RF Service
Tools" chapter. MJF-32 with a coupler is not allowed to use for RF tuning purpose.
EQUIPMENT NEEDED:
• NSB-9 module jig MJS-48, power- and DAU-9S cables
• DC power supply 3.9 VDC >3A
• Transmitter tester (e.g. Agilent VSA E4406A)
• Signal generator for RX tuning (e.g. Agilent E4433B)
• RF splitter (e.g. Mini-Circuits ZAPD-21)
• 6 dB attenuator, between module jig and RF cable to the splitter (e.g.
Suhner)
• PC with GPIB bus adapter, Phoenix software and security dongle
(PKD1xx)
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CCS Technical Documentation
Issue 1 04/03