CALAMP WIRELESS NETWORKS INC. BDD4T881 Manual Do Utilizador

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.

°°°°

1

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

Press RIS Get but-
ton

as per section 4.4.1

3

Transmitter Output
Power
Press TX ON (Un-
modulated)

VHF/UHF: 100 watts
800: 70 watts
+10%, -10%
Factory-settable down to 10
watts as per customer re-
quest.

Service monitor set
to read power
or
150W in-line watt-
meter installed as
close as possible to
the unit antenna
connector.

Adjust “Power” on the front
panel of the “Power Amp”
( see Figure 8)

4

Press  TXON (Un-
modulated)

<5% of forward power or as
specified by Syst. Eng.

10 W in-line watt-
meter

Check for bad connections,
damaged coax cable, etc.

5

Carrier Frequency
Error
Press TX (Unmade)

< ±300 Hz

Service monitor set
to read frequency
error

Adjust TCXO
(see inside Exciter module)
Figure 22 &

Figure 35

6

Press
 TXON (Modulated)   

Carrier will be
modulated with a 1
kHz tone.

SRRC4FSK,

 Full ch. unit:

25.6 kb/s: ±4.0 kHz
19.2 kb/s: ±4.7 kHz
16.0 kb/s: ±2.4 kHz
14.4 kb/s: ±2.7 kHz

Service monitor set
to read deviation

 (IF filter set to Mid
or 30 kHz position)

Adjust according to Appendix
1 - ParagonPD Deviation
adjust on page 57

7

Press

a)  Record deviation level

read from step 7

b)  Record deviation read

from TX Random test

c)  Difference between     a)

and b) must be:

< 500 Hz

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 Se-
ries II