Motorola R-2002A Manual page 240

Communications system analyzer
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ERROR 4
Channel out of 00 1·(1 )000 limit. A channel number entered in the initial parameters screen, is outside the
OOI-(1)000 limit allowed as valid FOCC and FVC's.
ERROR
ll
Page response not valid. The page response sent by the cellular telephone is not valid. This error can be in-
duced if the squelch control js set too close to 'breaking' or if the signal from the cellular telephone is at-
tenuated too much due to a problem with the RF cable hookup, the R2008D/R2010D has too much attenua-
tion dialed in on its front panel or if the cellular telephone has a transmitter that is below normal power. This
is visually verified by looking at the red Sig Lvl lamp on the R2008D/R20IOD front panel and by checking
the current drawn by the transceiver unit. Normally, the LED will light once for a split second to indicate the
R2008D/R20IOD has received a paging reply. If the LED flickers several times over a 2 second period, the
cellular telephone is trying to reply but the R2008D/R2010D does not recognize the transmission as a valid
page response. If the LED does not light, check to be sure the car telephone is set up and that power is ap-
plied properly.
ERROR I2
Page response not received. This error indicates that the cellular telephone is not responding to a page
message issued by the R2008D/R20IOD. Check the R2008D/R20IOD Sig Lvl LED as in error II above. Also,
if the transceiver unit is transmitting, as verified by increased current draw, the radio may be locked onto
spurious signal from the R2008D/R2010D Duplex Generator. If this is suspected, a 60 dB attenuator (part
no. 58-803I4B21) may be inserted in series with the Duplex Generator output jack.
ERROR 13
Alert signaling tone not accepted. This error indicates that the analyzer did not detect the 10KHz signaling
tone from the cellular telephone.
ERROR 14
Handoff Signaling Tone not accepted. The mobile issues a 50 msec burst of signaling tone (10 kHz) in
response to a handoff order while in the conversation mode. This error indicates that the R2008D/R2010D
detects this tone to be outside a 40 to 60 msec window.
ERROR 18
.....
Service request message invalid. The R2008D/R2010D has received a data packet from the mobile but it is not
interpreting the received data as a valid service request message. This can be caused by the squelch breaking
prematurely on the R2008D/R20IOD, or by noise mixed with the incoming data packet. Make certain that the
squelch on the R2008D/R20IOD is not 'breaking' on noise. In normal operation, the Sig Lvl LED on the
R2008D/R20IOD will flash briefly while the R2008D/R20IOD difficulties recognizing the service request, the
LED will flicker several times during a 2 second interval. Verify good RF cable connections. Check the at·
tenuation setting on tohe R2008D/R2010D (typiccllly set at -50 dB).
-
ERROR 19
SAT not returned. A supervisory audio tone (SAT), even the wrong SAT, has not been returned by the
cellular telephone. This error generally indicates that the cellular telephone has not shifted frequencies cor-
rectly as a result of an initial voice channel designation message or a handoff message. This error can be in-
duced if the background ambient noise during a test is excessive.
*NOTE:
The following errors are related to the manual test mode. Refer to figure II for an example of th(
STATUS command transfer sequence.
ERROR 20
Too many butes were specified in the manual mode free format
(00)
command. Only 3 bytes are allowed.
ERROR 21
Manual test command not in 1-43 range. The command entered is not in the 1-43 range of commands allowe(
by the AMPS spec.
ERROR 22
Transceiver does not acknowledge the command. The transceiver does not acknowledge the command jus
sent. It can result if the cable between the R2008D/R20IOD and the transceiver unit is not making good con
nection. Also check power connection to the mobile unit. Only 5 of the 43 commands will function before at
01 SUSPEND command is sent. These are: STATUS, TURNAROUND, REST ART, RESET and SUSPEND
31

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