CALAMP WIRELESS NETWORKS INC. BDD4T881S2 ユーザーズマニュアル

Paragon-III  Technical Manual

General Check out (part2 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 unit may result in significant performance losses.

°°°°

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

(Dataradio wide band
measurement method: no
audio filtering)

-  For Full channel unit,

set deviation to  ±3 kHz.

-  For Half & NPSPAC

channel unit, set devia-
tion to ±1.5 kHz

Better than  -108 dBm

including cable loss

(Typically -109 to -110 dBm)

- Backplane corre-

sponding to the re-
ceiver being verified:
J1 (RX1) or J5 (RX2),

-  Service monitor  (IFR)

set to SINAD

-  IFR IF filter set to MID

position or 30 kHz wide
filter.

9

(Dataradio wide band
measurement method: no
audio filtering)
-  Set service monitor RF

Gen output to –70 dBm

-  Deviation level as per

≤

 5.5 %

(Typically < 3.5 %)

- Backplane corre-

sponding to the re-
ceiver being verified:
J1 (RX1) or J5 (RX2),
Pin 6 (see Figure 11)

-  Service monitor  (IFR)

set to DISTORTION.

- 

IFR IF filter set to MID
position or 30 kHz wide
filter

.

10

Apply to each receiver
input the following RF
level

UHF & 800 Mhz:

 -110dBm

UHF & 800 MHz:

2.0 VDC (+/- 0.3VDC)

Note:

BDLC must be
connected to the radio
during the
measurements

- Backplane corre-

sponding to the re-
ceiver being verified:
J1 (RX1) or J5 (RX2),
Pin 5 (see Figure 11)

- DC Voltmeter

measurement

Refer to section 5.2.2.5 for
all models.

Refer to factory technical
support only if RX data
performance degradation is
noticed combined with out
of tolerance RSSI readings.