User Manual
120 20191-001 Paragon-III Technical Manual
18
Table 4 - Checklist B (General)
CHECKLIST B (Paragon-III)
General Check out (part1 of 2)
Paragon-III units are set and characterized at the factory to optimize performances.
It is not recommended to try readjusting units unless it is really required.
Misadjusting a unit may result in significant performance losses.
The proposed adjustments in the "IF NOT?" column below, should be tried ONLY if system data
performance degradation is noticed combined with out-of-tolerance items.
Step ACTION
Expected Results at 25°C
MEASURE WITH IF NOT?
1
Normal Power-up
Sequence
BDLC-III beeps once, all LEDs come ON for about four seconds, the green LEDs then
flash in a “ripple” pattern for close to two seconds. All LEDs go OFF except the CK that
should flash 6 to 8 times per second.
2
Connect and save unit
config
Press CDip Get button
as per CDip Help content
3
Transmitter Output
Power
Press TX ON (Unmod)
50 watts
+0%, -10%
Service monitor set
to read power
or
50W in-line wattme-
ter installed as
close as possible to
the unit antenna
connector.
Adjust “Power” on the front
panel of the “Power Amp”
4
Transmitter Reflected
Power
Press TXON (Unmod)
< 5% of forward power or as
specified by System Engineer-
ing.
50 W in-line
wattmeter
Check for bad connections,
damaged coax cable, etc.
5
Carrier Frequency Er-
ror
Press TX (Unmod)
< ±300 Hz
Service monitor set
to read frequency
error
Adjust TCXO (IC700)
(see inside Exciter module at,
Figure 21
6
TX Deviation (KHz)
Press
TX (modulated)
Carrier will be modulated
with a 1 kHz tone.
±8.0 kHz
Tolerance is +5%, -10%
Service monitor set
to read deviation.
(IF filter set to Mid
or 30 kHz position)
Refer to tech support
7
Low Frequency
Balance
Initiate a
TX Random data test
via CDip
a) Record deviation level
read from step 6
b) Record deviation read
from TX Random test
c) Difference between
a) and b) should be:
< 1.5 kHz xRC16FSK)
< 1.7 kHz xRC8FSK)
< 1.9 kHz xRC4FSK)
Service monitor set
to read deviation
(IF filter set to Mid
or 30 kHz position,
all audio filtering
disabled )
Refer to
Section 5.2.3.4