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AM5(e) Classic Instruction Manual
9.
Observe indication on display:
•
Left display reads "Undr" with dBm lighted.
•
Right display is blank, and no LED is lighted.
10. Press DISPLAY key until SEND is lighted and observe
•
Dashes are displayed in both displays and no LEDs are lighted.
11. Press PARAM SEL key repeatedly and observe that the displays step
through the SEND QUIET parameters (LEVL, F1, F2, F3, F4 and VEr as
shown in the parameters table under 4.5.1). Stop when the display of step
10 is again reached.
12. Set MONITOR switch to the TX position and turn the volume control all the
way counter-clockwise, then turn back about 1/8 turn.
13. Press the right SEND key briefly until F2 is flashing. Then hold key for over
three seconds (then release) until readings below are checked. Press the key
again briefly to stop the tone when done.
•
F2 is lighted, steady.
•
Left display reads 00.0 with dBm lighted.
•
Right display reads 1.004 with kHz lighted.
•
Tone is heard from speaker (stops when key is released)
•
Displays go back to those of step 10 (when key is released).
14. Press MEASURE key until NOISE is lighted.
15. Press DISPLAY key until MEAS is lighted.
•
Left display reads "undr" with
•
Right display is blank and no LEDs are lighted.
16. Set the MONITOR switch to the MEAS position, and turn volume control
knob clockwise slowly until any sound from speaker is at a comfortable
level. The most that should be heard is hiss from the internal electronics of
the AM5(e) Classic since SEND is set to QUIET. Turn volume control back
to about 1/8 turn from full counter-clockwise limit before starting the next
test.
NOTE: When the MONITOR switch is set to MEAS position, the speaker is
connected to an automatic-gain-controlled amplifier used in the NOISE and
auto-ranging features. Even though no signal is connected to the RX jacks,
there will be feed through of tones from the SEND function. If the signal is
looped back, the amplifier will compensate for the input, and the tone will
sound about the same as it will when MONITOR switch is in the TX or RX
position.
November 19, 1997
(18-0047)
SELF TEST and CALIBRATION
dBrn
lighted (dBm on AM5e Classic)
Page 4-5
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