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8. Set the generator output level and port
selection. Suggested port selection is RF
I/O with -50dB for the level setting.
9. Press the AUD Cursor Zone hardkey to
move the Audio zone. Set the deviation
level. Default is 2.83 kHz.
10. Connect the base station to the RF I/O
port and start base station rx/tx.
11. Press the DISP Cursor Zone hardkey to
move to the Display Zone.
cursor to the "Rx Signal Type:" field and
select LSM or C4FM receiver.
12. Move the cursor back to the "Meter:"
field and press the start test softkey.
This will start transmit of the 1011Hz test
pattern and receive of voice.
13. Verify transmit of the 1011 Hz pattern by
selecting the more softkey and the RF
DISPLAY softkey. Move the cursor to
the "Display:" field and select the MOD
SCOPE softkey. Then move the cursor to
the "Select:" field and select the GEN
softkey.
A PROJ 25 modulation waveform should
be observed on the Mod Scope.
14. Verify receipt of the 1011 Hz pattern
from the base station by selecting the
MON softkey.
A PROJ 25 modulation waveform should
be observed on the Mod scope.
15. Turn the volume knob and verify the
1011 Hz tone is being decoded and routed
to the speaker of the analyzer.
16. Move the cursor to the "Display:" field
and select the MORE softkey and the
BASE TEST softkey.
17. Move the cursor to the "Measurement
Period:" field and enter the desired
18. Move the cursor to the "Averaging
The input level displayed on the screen will
be 10dB less than the actual input power
because of the 10dB pad on the RF I/O
Move the
port.
19. Move the cursor to the "Meter:" field and
25-4.4 BER
Connect a 10dB pad to the RF I/O port and the
unit under test to the 10dB pad.
1. Place the cursor on the "Mode" field in the
2. Move the cursor to the "Meter" field by
3. Select the more softkey and the BER
314
averaging interval. An interval of 90ms to
4.32 seconds can be entered using the
numeric keys or the rotary knob.
Wattmeter:" field and select the ON
softkey. The average power measured will
be displayed in the "Input Level:" field.
NOTE
The power measurement is stopped by
pressing the OFF softkey or by any button
push. Button pushes will be ignored until
the current measurement completes.
press the stop test softkey to stop transmit
and receive of the 1011 Hz tone.
The power measurement and the 1011 Hz
rx/tx are independent of each other, I.E., the
full duplex rx/tx can be performed without
using the averaging wattmeter and the
averaging wattmeter can be used without
turning on the 1011 Hz rx/tx.
Display Zone located at the top of the
screen. Use the PROJ25 TRK softkey to
select the mode.
pressing the TAB key.
softkey to select the BER TEST.
The RF Zone display will switch to the
Monitor format, displaying "Freq:" field.
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