9: Processor Board
9-8
PRC1099A-MS
9.1.20
Specifications
Note:
These specifications are subject to change without notice or
obligation.
LSB Receiver
Tests the receiver circuitry in lower sideband mode. An audible
tone is heard for at least two seconds in the handset. If BITE
does not detect the tone,
LSB FAIL
displays and BITE stops.
Otherwise,
LSB PASS
is displayed and BITE proceeds to next
step.
Transmitter
Exercises the transmitter functions. It begins by tuning the
Synthesizer to one of six test frequencies in USB mode (see
table below). It sets the radio to low power and attempts to tune
the antenna to the current test frequency. An audible test tone is
generated through the handset for two seconds and verified by
the operator. If radio passes, BITE switches the transmitter to
high power for two seconds (if the resulting antenna tune setting
includes L8, L9, or L10, transmitter stays in low power).
Operator verifies the test tone is audible. If the antenna tuning
fails to tune during transmitter test sequence, BITE displays
XXX
FAIL
(XXX = current test frequency). If the test tone is not
present or fades during the low/high power sections of any
transmitter tests, the current test is failed by the operator.
Test
Description
29.9 Test
29.9000 MHz
19.9 Test
19.9000 MHz
12.9 Test
12.9000 MHz
7.9 Test
7.9000 MHz
4.9 Test
4.9000 MHz
2.9 Test
2.9000 MHz
Table 9-1 Processor Board Specifications
Characteristic
Specification
Current Drain
Static: 20 mA typical at 5V
Operating: 40 mA typical at 5V
Lithium Cell:
A typical at 2.5V
Lithium Cell Life
5 years minimum, 10 years typical
