User's Manual

4-7
6. Re
b. ight to
the one-tenth position by depressing the RIGHT ARROW CURSOR POSITION key
three times. Rotate the T n the R2600 panel until the
Sensitivity as stated in Table 1-1 located in
as it was with a -50dBm
of
d.
channel 0 on the URC-200 (V2) with the R2600 set on
4-2.2.3
1.
Se e
the
2. Se
3. Preset the R2600 by performing the following steps.
panel for the preset-screen.
Frequency position and enter
115.000 from the R2600 keypad.
nter 115.000 from the
g. ulation Type and press the "AM" softkey.
'T CARE" softkey.
one
eypad.
softkey.
" softkey to
program the frequency presets in steps D and E above.
FM, CT, SCN OFF, BCN OFF,
ceiver FM CT Sensitivity Measurement:
a. Depress the RF key on the R2600 panel. Move the cursor to the Preset position and
set it for Preset 01. Adjust the URC-200 (V2) for channel 1.
Move the cursor to the Output Lvl (RF Output Level) position. Position the highl
UNING control counter-clockwise o
RF Output Level reads the limit for FM CT
Section 1 of this manual.
c. Verify the 8kHz waveform pattern on the screen of the R2600 has an amplitude of 4
VPP to 24 VPP. Verify the square wave pattern is the same
signal except for the slight jumping around of the 8kHz pattern. Note, it may be helpful
to observe the 8kHz pattern as the RF input level is decreased. The jumping around
the pattern will turn into a random breakup of the pattern.
On both the URC-200 (V2) and the R2600 repeat steps A through C for preselect
channels 2 through 9 and
preset channel 10.
Receive AM PT Sensitivity and Distortion
t up the test equipment as shown in Figure 4-1. Connect th
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT OUT) of
Remote connector. Pin A or D of the remote connector is return ground.
t the input power supply to 28 .1 Vdc.
a.
Press the MEM (Memory) key on the R2600
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor
e. Move the cursor to Modulation Type and press the "AM" softkey.
f. Move the cursor to the Generate Frequency position and e
R2600 keypad.
Move the cursor to Mod
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "T
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the k
l. Move the cursor to the DTMF Code position and press the "DON'T CARE"
Note: The "more" softkey may have to be depressed for the "DON'T CARE
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-4 to
n. Press the "return" softkey.