120 20195-100 Preliminary
Paragon4 – UHF, 700, & 800MHz User Manual
22
Table 4 - Checklist B (General)
CHECKLIST B (
Paragon
4
)
General Check out (part1 of 2)
Paragon
4 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 per-
formance degradation is noticed combined with out-of-tolerance items.
Step
ACTION
Expected Results at
25
°
C
MEASURE WITH
IF NOT?
Normal Power-up
Sequence
BSC
PWR LED lights red for four seconds, turns amber for one second, and stays green
thereafter.
TX LED flashes green once about fifteen seconds after power-up then keeps flashing
in-tune to the cycle marker
RX LED remains OFF
STATUS LED remains OFF
ETH 1 LED – if connection present – lights green. Flashes amber with activity
ETH 2 LED – If connection present – lights green. Flashes amber with activity
RX1 and RX2
PWR LED remains steady green
1
Transmitter
PWR LED and LOCK LED remain steady green
ON LED lights red after 10 seconds, and stays red thereafter
For steps below, on the Radio
Î
Set Up Web page, press the “test” button to enable Test Tone function
2
Transmitter Output Power
From the Maintenance unit
WEB “Test Tone” page,
Select
Unmodulated –
Press Execute
UHF
: 100 watts
800 MHz
: 70 watts
(user settable from 20W)
Tolerance: +15% -20%
Service monitor set to read
power
or
150W in-line wattmeter
installed as close as
possible to the unit antenna
connector.
Adjust “Power” on the
“Power Amp”. See
Power Amplifier ad-
justments paragraph in
PA’s manual.
3
Transmitter Reflected
Under Test Tone section
select
Unmodulated
and press “Execute”.
< 5% of forward power or as
specified by System Engi-
neering.
10 W in-line wattmeter
Check for bad connec-
tions, damaged coax
cable, etc.
4
RF Link test
between Paragon4 unit and mobile unit(s) (PING test from the unit Web page as per para-
graph
Error! Reference source not found.
or PING from a PC as per paragraph 5.4.1)
5
Carrier Frequency Error
Under Test Tone section
select
Unmodulated
and press “Execute”.
< ±300 Hz @ 25
o
C ambient
or
< ±1 ppm from –30 to +60
o
C
< ±0.1
1)
ppm –30 to +60
o
C
Service monitor set to read
frequency error.
1)
0.1 ppm
requires the 10MHz refer-
ence option to be present
and instrument’s time gate
set to 1s
Adjust frequency offset
through the software
6
TX Deviation (kHz)
Under Test Tone section
select
Unmodulated
and press “Execute”.
Carrier will be modulated with
a 1 kHz tone.
Refer to 5.3.1 for TX
Deviation details.
Tolerance is +5%,
-10% for all bit rates.
Service monitor set to read
deviation.
(IF filter set to Mid or 30
kHz position)
If transmitter is re-
tuned outside its
original factory-
calibrated tuning range
or where its deviation
readings are found to
be out-of-specs, please
contact Dataradio
System Engineering.
