CALAMP WIRELESS NETWORKS INC. BDD4T83-2 Manual De Usuario
120 20170-302
Paragon
PD
Technical Manual
22
CHECKLIST B (Paragon
PD
)
General Check out (part2 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 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?
Set the service monitor to generate on the selected receive frequency. Verify alternately for both receivers.
The carrier should be modulated with a 1.0 kHz tone at deviation level specified below:
8
12 dB SINAD
(Dataradio wide band
measurement
method: no audio
filtering)
measurement
method: no audio
filtering)
- For Full channel
unit, set deviation
to ±3 kHz.
to ±3 kHz.
- For Half &
NPSPAC channel
unit, set deviation
to ±1.5 kHz
unit, set deviation
to ±1.5 kHz
Better than -108 dBm
including cable loss
(Typically -109 to -110 dBm)
- Backplane correspond-
ing to the receiver being
verified: SK1, Pin 6 (see
verified: SK1, Pin 6 (see
- Service monitor (IFR)
set to SINAD
- IFR IF filter set to MID
position or 30 kHz wide
filter.
filter.
9
Receiver distortion
(Dataradio wide band
measurement
method: no audio
filtering)
- Set service monitor
measurement
method: no audio
filtering)
- Set service monitor
RF Gen output to –
70 dBm
70 dBm
- Deviation level as
per SINAD above.
≤
5.5 %
(Typically < 3.5 %)
- Backplane correspond-
ing to the receiver being
verified: SK1, Pin 6 (see
verified: SK1, Pin 6 (see
- Service monitor (IFR)
set to SINAD
- IFR IF filter set to
MID position or 30
kHz wide filter.
kHz wide filter.
10
RSSI
Apply to each
receiver input the
following RF level
receiver input the
following RF level
UHF & 800/900Mhz:
-110dBm
VHF: -100 dBm
UHF & 800 MHz:
2.0 VDC (+/- 0.3VDC)
VHF:
4.0 VDC (+/- 0.35VDC)
4.0 VDC (+/- 0.35VDC)
Note: BDLC must be
connected to the
radio during the
measurements
radio during the
measurements
- Backplane correspond-
ing to the receiver being
verified: SK1, Pin 5 (see
verified: SK1, Pin 5 (see
- DC Voltmeter
measurement
Refer to section 5.2.2.5
for all models.
for all models.
Refer to factory
technical support only if
RX data performance
degradation is noticed
combined with out of
tolerance RSSI
readings.
technical support only if
RX data performance
degradation is noticed
combined with out of
tolerance RSSI
readings.