2805 Base Originated; Tone Sequence; Tone Remote (Encode); Tone Remote (Decode) - Motorola R-2001D Operator's Manual

Communications system analyzers
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TABLE 3-10.
TONE B FUNCTIONS
and 2805 sequences. Enter frequencies up to a max-
imum
10,000 Hz with 1 Hz resolutions. The processor
responds to changes in tone frequencies to allow the
next complete sequence to be executed with the new tone
frequencies. The MTS sequence requires no test se-
quence select and has no mobile to base system.
SIGNALING SEQUENCE MODE SEL)7
ENTER
0 FOR MENU
BURST TO START
Control & Function 1 Freq. Systems
Fl Transmit
1950 Hz
F2
Transmit
NI
A
FI Transmit wlo PL NI A
PL Monitor
2050
Hz
R2 Off/R2 On
NI
A
Rptr Off/Rptr On
1550/1450 Hz
PL On/PL Off
1550/1450 Hz
Wild Card I
1350/1250
Hz
Wild Card II
J 150/1050 Hz
2
Freq. Systems
1950 Hz
1850 Hz
N/A
2050
Hz
1750/1650
Hz
N/A
1550/1450 Hz
1350/1250
Hz
1150/1050 Hz
Paging Systems
1950 Hz
N/A
1850 Hz
2050
Hz
N/A
155011450
Hz
1550/1450 Hz
1350/1250
Hz
1150/1050 Hz
FIGURE 3-34.
2805 BASE ORIGINATED DISPLAY
• 2805 BASE ORIGINATED
Figure 3-34 shows a page 7 display for the mobile tele-
phone 2805 sequence, base originated. Figure 3-34
defines the encode information for 2805 sequences. The
2805 sequence requires no test sequence select and has
no mobile to base system.
• TONE SEQUENCE
,-..,
Select Tone Sequence Mode (memory display) for the
code synthesizer. Encode in generate function, decode
in monitor function, or use special function control to
encode or decode in either generate or monitor func-
tion. The tone memory table displays details for all
signaling systems. Program frequency, time duration,
and time interval.
• TONE REMOTE (ENCODE)
The System can be used to simulate a tone remote con-
trol console, or to troubleshoot tone control decoding
circuitry in remote base station. These useful tone bursts
are available at the MOD OUT jack on the front panel
so that they can be coupled onto phone lines or any
other place they may be needed. Activate the tone bursts
by selecting TONE REMOTE mode in the MODULA-
TION section of the front panel. Select the two ap-
propriate frequencies of the tone bursts by program-
ming Tone A and Tone B frequencies in the Two-Tone
paging sequence. Typical guard tone frequency (Tone
A) is 2175 Hz. Function tones (Tone B) vary by system.
Select Tone B from table 3-10. Refer to your Tone
Remote Instruction Manual for detailed information.
2) 1.0 Hz
4)
100 Hz
6) AUTO
2)
PERIOD
04) 285.7750 MHz
DPL) - --
FIGURE 3-35.
FREQUENCY COUNTER DISPLAY
Unlike the other signaling sequences, this special mode
provides no repetitive sequences. Institute the TONE
REMOTE sequence by moving the MODULATION
switch to BURST or CONTINUOUS. The sequence
issues TONE A for 115 ms followed by TONE B for 40
ms at a level
10
dB below that of Tone
A.
Tone A
follows at a level 30 dB below that of the initial Tone A
for as long as the MODULATION Switch is held in
either the BURST or CONTINUOUS position. The
level of these bursts is adjustable with the MOD LEVEL
control, and may be observed with the MODULATION
DISPLAY similar to any signaling sequence.
INPUT FREQUENCY
*
10.723 MHz
- RANGE SW NOT AT MAX SENS POS -
• TONE REMOTE (DECODE)
Connect the Analyzer's VertiSinad/Dist input to the
Tone Remote unit's output. Select Signaling Sequence
DISPLAY and Monitor FUNCTION. Select General
Sequence Decode Mode, as shown in figure 3-30, and
enter Special Function control code # 11. The screen
displays frequency and time duration for both high level
guard tone
(A)
and function tone (B). After obtaining
the information for F-l, press either keypad cursor key
once to reset. Obtain information for F-2 and reset, etc.
GENERATEFM
PL) 936.0
COUNT MODE SEL) 2
1) FREQUENCY
RESOLUTION SEL) 6
1) 0.1 Hz
3) 10 Hz
5) 1 KHz
SEQ SEL) 3
TONE 2) 2805 Hz
MOBILE
TEL
I)
IMTS
2) MTS
3) 2805
2805
TONE I) 0000 Hz
MOBILE ID
3-17

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