Dataradio Paragon, Техническое руководство

Страница: 36 / 72

120 20170-204a Paragon
PD
Technical Manual
28
Table 10 - Checklist B (General)
CHECKLIST B (Paragon
PD
)
General Check out (part1 of 2)
Paragon
PD
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.
Step ACTION Expected Results at 25
°°°°
C MEASURE WITH IF NOT?
1 Normal Power-up
Sequence
BDLC
PD
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. For functions, see section 3.2.1.2
2 Connect and save
unit config
Press WinRIS Get
button
as per section 4.5.2
3
Transmitter Output
Power
Press TX ON (Unmod)
VHF/UHF : 100 watts
800 : 70 watts
+10%, -10%
Factory-settable down to 10
watts as per customer request.
Service monitor set to
read power
or
150W in-line watt-
meter installed as
close as possible to
the unit antenna con-
nector.
Adjust “Power” on the front
panel of the “Power Amp”
( see Figure 8)
4
Transmitter Reflected
Power
Press TXON (Unmod)
<5% of forward power or as
specified by Syst. Eng. 10 W in-line wattme-
ter Check for bad connections,
damaged coax cable, etc.
5 Carrier Frequency
Error
Press TX (Unmod)
< ±300 Hz Service monitor set to
read frequency error
Adjust TCXO (IC700)
(see inside Exciter module)
Figure 20 & Figure 36
xRC4FSK
UHF 800U 800CA
Speed\ Full channel unit
32.0 kb/s ±4.0 ±3.5 ±3.5
25.6 kb/s ±4.0 ±3.7 ±3.7
19.2 kb/s ±4.5 ±4.3 ±4.3
Half channel unit
25.6 kb/s - ±2.0 -
6 TX Deviation (KHz)
Press
TXON (Modulated)
Carrier will be modu-
lated with a 1 kHz tone.
19.2 kb/s ±1.5 ±2.1 ±1.5
Service monitor set to
read deviation.
(IF filter set to Mid or 30
kHz position)
Adjust according to Appendix 1
-Paragon/PD Deviation adjust on
page
16.0 kb/s ±1.6 ±2.4 ±1.6
14.4 kb/s: ±2.0 ±2.7 ±2.0
DGFSK
Full channel unit
19.2 kb/s ±4.0 ±4.0 ±4.0
16.0 kb/s ±4.0 ±4.0 ±4.0
Half channel unit
9.6 kb/s ±2.5 ±2.5 ±2.5
Tolerance is +5%, -10% for all bit rates.
7 Low Frequency Bal-
ance
Initiate a
TX Random data
test
via BDLC
PD
’s PF1
(See Table 3)
a) Record deviation level read
from step 6
b) Record deviation read from
TX Random test
c) Difference between a)
and b) must be:
< 500 Hz (2 FSK)
< 1.8 kHz (4 FSK)
Service monitor set to
read deviation
(IF filter set to Mid or
30 kHz position, all
audio filtering
disabled )
Refer to
Section 6.2.3.4 for Series I and
section 6.4.3.4 for Series II