User's Manual

4-13
7. CT Audio Response Measu z audio response by doing
y) key.
the waveform in Vpp. This reading should be the
a.
8. easure the 10 kHz audio response by
.
s for 50 uS
ould be 4 to 24
4-2.2.6
1. 4-1. Connect the
Remote connector. Pin D of the Remote connector is return ground.
to 28  .1 Vdc.
creen.
ghlight preset 08.
s are the eight keys under the CRT
cy position and enter
i. to the Duplex Offset position and press the "DON'T CARE" softkey.
nd select the "Tone
.
4.
rement (10 Hz): Measure the 10 H
the following on the R2600:
a.
Depress the AUD (Audio) key
b. Depress the cursor keys for the Tone A frequency. Adjust it to 10 Hz
c.
Depress the DISP (Displa
d. Depress the Horizontal key.
e. Depress the cursor control keys for 50 mS.
f. Read and record the amplitude of
same as the reading in step 6
CT Audio Response Measurement (10 kHz): M
doing the following on the R2600:
a. Depress the AUD (Audio) key
b. Depress the cursor keys for the Tone A frequency. Adjust it to 10 kHz
c. Depress the DISP (Display) key
d. Depress the cursor control key
e. Read and record the amplitude of the waveform in Vpp. This reading sh
VPP.
Squelch Sensitivity
Set up the test equipment as shown in Figure
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT OUT) of the
2. Set the input power supply
3.
Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-s
b. Use the CURSOR POSITION keys to hi
c. Press the "view preset" softkey. Note: The softkey
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequen
312.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 312.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
Move the cursor
j. Move the cursor to Synth. Format Sel (synthesizer format select) a
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed
m. Press the "return" softkey twice.
Perform the following steps to complete the setup on the R2600 analyzer.