3. SERVICE
3.1. MAINTENANCE
PREVENTIVE MAINTENANCE
If SAILOR RT2048 has been installed in a proper way the maintenance can be reduced to an overhaul at each visit
of the service staff. Then inspect the set, the antenna, cables, and plugs for mechanical damages, salt deposits,
corrosion, and any foreign material. Owing to its traditional structure, the SAILOR RT2048 has a long lifetime, but
it must always be carefully checked at intervals not exceeding 12 months - dependent on the conditions under which
the set is working. The set must be brought to the service workshop to be tested.
Along with each set a TEST-SHEET is delivered in which all the measurements, made in the test department of
the factory, are listed. If the control measurings made in the service workshop should not show the same values
as those listed in the test-sheet, the set must be adjusted as specified in the ADJUSTMENT PROCEDURE.
3.2. ALIGNMENT INSTRUCTIONS
INTRODUCTION
The measuring values indicated in paragraph 2 of CIRCUIT DESCRIPTION AND SCHEMATIC DIAGRAMS are
typical values and as indicated it will be necessary to use instruments in absolute conformity with the below list:
3.3. PROPOSAL FOR NECESSARY MEASURING INSTRUMENTS
VHF Signal Generator type TF2015 MARCONI
FM Modulation Meter type TF2303 MARCONI
Distortion Analyzer type TF2337A MARCONI
AF Voltmeter type VT-121 TRIO
Tone Generator type PM5107 PHILIPS
Electronic Multimeter type PM2505 PHILIPS
RF Directional Wattmeter Model 43 BIRD SOW
Load with 30 dB Attenuator type 8321 BIRD
Frequency Counter:
Frequency range >175 Mhz
Sensitivity <100 mv
Impedance >1 Mohm and 50 ohm
Accuracy <1 - 10
-6
We can also recommend one of the new communication test sets introduced by several instruments manufacturers.
From S. P. Radio this high quality product will be tested and adjusted by means of a CMT communication tester
from Rohde and Schwarz.
RT2048
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