Quantcast CHAPTER 7. FINAL TESTING

 

Click here to make tpub.com your Home Page

Page Title: CHAPTER 7. FINAL TESTING
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
Procedure. - TM-11-5820-222-350256
Up
TM-11-5820-222-35 Radio Sets AN/VRC-24 and AN/TRC-68 Manual
Next
Receiver Sensitivity Test - TM-11-5820-222-350258


FINAL TESTING
Section I. INTRODUCTION
audio test box listed in paragraph 128 the
142. Purpose of Final Testing
following items are required for final test-
The tests outlined in this section are
ing:
designed to measure the performance ca-
pability of a repaired Radio Set AN/VRC-
24 or AN/TRC-68. Equipment that meets
the requirements stated in the tests will
provide satisfactory operation equivalent
to that of new equipment.
143. Test Equipment Required for Final
Testing
In addition to the test equipment and
Section II. TESTS
b. Test Procedure, Radio Set AN/TRC-
144. Frequency Stability Versus Supply
68.
Voltage
(1) Adjust the input voltage to 115 (or
Connect Radio Set AN/VRC-24 or AN/
230) volts ac with the AN/TRC-68
TRC-68 and the test equipment as shown in
operating on transmit.
(2) Set the frequency to 399.9 mc.
(3) After a 30-minute warmup, meas-
a. Test Procedure, Radio Set AN/VRC-
ure and record the transmitter out-
24.
put frequency.
(1) Adjust the input voltage to 26.4
(4) Adjust the input voltage to 103 (or
volts dc with the AN/VRC-24 oper-
207) volts ac and, after 5 minutes,
ating on transmit. Use the ME-26/
repeat the frequency measure-
U to measure the dc input voltage.
ment. The frequency must be with-
(2) Set the frequency to 399.9 mc.
in 2 kc of 399.9 kc.
(3) After a 30-minute warmup, meas-
(5) Adjust the input voltage to 127 (or
ure and record the transmitter out-
253) volts ac and, after 5 minutes,
put frequency.
repeat the frequency measure-
(4) Adjust the input voltage to 22 volts
ment. The frequency must be with-
dc and, after 5 minutes, repeat the
in 2 kc of 399.9 kc.
frequency measurement. The fre-
quency must be within 2 kc of
145. Front Panel Meter
of 399.9 mc.
(5) Adjust the input voltage to 30 volts
Connect the AN/VRC-24 or AN/TRC-68
dc and, after 5 minutes, repeat the
for normal operation. Check LINE V, LOW
frequency measurement. The fre-
B+, HIGH B+, and S-METER on receive.
quency must be within 2 kc of
Operate the push-to-talk switch and check
399.9 mc.
LOW B+, HIGH B+, DVR Ib, PA Ig, PA Ib,


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

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