Quantcast Table 5-3. Radio Receiver-Transmitter RT-980/GRC-171 Performance Tests (Sheet 3 of 17)

 

Click here to make tpub.com your Home Page

Page Title: Table 5-3. Radio Receiver-Transmitter RT-980/GRC-171 Performance Tests (Sheet 3 of 17)
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Table 5-3. Radio Receiver-Transmitter RT-980/'GRC-171 Performance Tests (Sheet 2 of 17)
Up
TM-11-5820-815-14 Service and Circuit Diagrams RADIO SET AN/GRC-171 Manual
Next
Table 5-3. Radio Receiver-Transmitter RT-980/GRC-171 Performance Tests (Sheet 4 of 17)


TO 31R2-2GRC171-2
TM 11-5820-815-14
NAVELEX 0967-LP-544-5010
Table 5-3. Radio Receiver-Transmitter RT-980/GRC-171 Performance Tests (Sheet 3 of 17)
CONTROL SETTINGS
OPERATION OF TEST
AND OPERATION
PERFORMANCE
STEP
EQUIPMENT
POINT OF TEST
OF EQIPMENT
STANDARD
RECEIVER SIGNAL-PLUS-NOISE TO NOISE RATIO (Cont)
12
Determine signal-plus-
AUDIO OUTPUT
Not less than 10 dB.
noise to noise ratio as
(A10A2J22-N/S)
the dB decrease from
step 10 to step 11.
13
Repeat steps 7 through
Not less than 10 dB.
12 for the following
frequencies: 300.000
and 399.975 MHz.
RECEIVER WIDE-BAND AUDIO OUTPUT
14
Connect equipment as
shown in figure 5-2.
Connect 10-kload
and distortion analyzer
to RT-980/GRC-171
DATA OUTPUT
(A10A2J22-L/M).
15
Set rf signal generator for
DATA OUTPUT
Set REMOTE/LOCAL
1.0 V rms or greater.
rf input level of 3.0 ÁV at
(A10A2J22-L/M)
switch to LOCAL,
300.000 MHz, 30% modu-
PTT/CARRIER
lation at 1 kHz. Measure
switch to PTT,
wide-band audio output.
SQUELCH switch
to OFF, and fre-
quency switches
to 300.000 MHz.
16
Increase rf signal
1.0 V rms or greater.
generator rf input
level to 6 ÁV.
RECEIVER SQUELCH
17
Set rf signal generator for
Set SQUELCH
rf output level of 50 RV at
switch to ON
300.000 MHz, 30% modu-
lation at 1 kHz. Connect
switches to
600-ohm load and dis-
300.000 MHz.
tortion analyzer to
RT-980/GRC -171
AUDIO OUTPUT
(A10A2J22-N/S). Con-
nect vom to RT-980/
(Cont)
GRC-171 SQUELCH
5-9


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business