NORMARC 7050, Руководство пользователя

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USER MANUAL
2-12
21464-5
NORMARC 7050
MARKER BEACON
Tests and adjustments ©1999 Navia Aviation AS
1. Monitor RF level (nom. 3V@nominal output power)
1. Monitor frontend input filter centre frequency (use factory settings)
2. Real time clock fine tuning(use factory settings)
Figure 2-3 Adjustment points
2.4 Adjustments at installation
These procedures have to be carried out at installation in order to set up your equipment right.
2.4.1 Transmitter output power adjustment
This adjustment is most easily done with the RMM PC program but the local keyboard/display
may be used.
•
Make sure the output signal RF OUT is terminated with a 50
Ω
load (antenna or dummy
load).
• If this is an Inner Marker make sure the external attenuator is installed.
• Start the RMM program on the PC (see chapter 10)
• Open the TX settings window, RF
LEVEL
for TX1 and TX2 are to be adjusted.
• Open the Maintenance window. RF
LEVEL
for TX1 and TX2 are to be watched.
The adjustment points marked Use Factory Settings should not be touched.
The baseband level has to be adjusted at installation.
The other are factory pre-set but may be adjusted.
A
N
T
I S
T
A
T
Shield box
Oscillator
1
2
3
4
5
6
7
HBK864/1