E.F. Johnson Company 9800 Series Manuel de service Page 57

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 69
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 56
4-1
Revised January 2001
Part No. 001-9800-501
ALIGNMENT AND PERFORMANCE TESTS
SECTION 4 ALIGNMENT AND PERFORMANCE TESTS
Figure 4-1 Alignment Setup
Ign Sense
Remote Programming Interface (RPI)
13.6 VDC
Power Supply
Signal Generator/
Wattmeter
50-ohm
Load
Comm. Monitor
(Optional)
Part No. 023-9800-000
PC-Compatible
Computer
4.7-ohm
Speaker Load
4.1 GENERAL
4.1.1 INTRODUCTION
The alignment procedure described in this section
should be performed if repairs are made that could
affect the factory alignment. In addition, before a
transceiver is initially placed in service, the perfor-
mance tests described in Section 4.8 should be
performed.
To perform the alignment described in this
section, special PCTune software (see Table 1-1) and
the same basic computer setup used for programming
is required. This equipment is shown above and also
described in Section 3.1. Remote Programming Inter-
face (RPI), Part No. 023-9800-000, or others can be
used (except 023-5300-000). The speaker and micro-
phone audio jacks on the 9800 RPI are not required in
this application.
With 800 MHz models, only three or four adjust-
ments are made manually and the others are made
digitally using the PCTune software. The manual
adjustments tune the IF and high power PA, and set the
TCXO frequency. If they do not need to be reset, the
transceiver can be tuned without removing the top or
bottom covers.
This transceiver does not have a special test mode
that is selected. The PCTune software automatically
selects the frequencies and other test conditions that
are required to perform the alignment. If the trans-
ceiver must be controlled manually to perform such
things as testing or troubleshooting, program tempo-
rary conventional channels.
4.1.2 TEST SETUP
Connect the test setup shown in Figure 4-1. Addi-
tional information follows on equipment in this setup.
Vue de la page 56
1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 68 69

Commentaires sur ces manuels

Pas de commentaire