TM 11-6625-486-14&P
Table 6-14. Audio Power Output with External Rf Input Signal Test-Continued
Control Settings
Step
No. Test Equipment
Test Procedure
Performance Standard
Equipment under test
4
Same as step No. 1,
Same as step No. 3.
Same as step No. 2.
Same as step No. 2.
except:
AN/URM-25F:
FREQUENCY BAND
SWITCH: E.
Frequency: 1.52 MHz.
5
Same as step No. 1,
Same as step No. 1, Same as step No. 2.
Same as step No. 1.
except:
except: TUNING: 250
AN/URM-25F:
kHz.
FREQUENCY BAND
SWITCH: D.
Frequency: 250 kHz.
6
Same as step No. 1,
Same as step No. 5.
Same as step No. 2
Same as step No. 2.
except:
AN/URM-25F:
FREQUENCY BAND
SWITCH: F.
Frequency: 2.5 MHz.
7
Same as step No. 6.
Same as step No. 1,
Same as step No. 2.
Same as step No. 1.
except: RANGE: B.
TUNING: 2,500 kHz.
8
Same as step No. 6,
Same as step No. 7,
Same as step No. 2.
Same as step No. 1.
except:
except: TUNING:
AN/URM-25F: 3,750 kHz.
Frequency: 3.75 MHz.
9
Same as step No. 6,
Same as step No. 7,
Same as step No. 2
Same as step No. 1.
except:
except: TUNING:
AN/URM-25F: 5,000 kHz.
Frequency: 5.00 MHz.
10
Same as step No. 1,
Same as step No. 7.
Same as step No. 2.
Same as step No. 2.
except:
AN/URM-25F:
FREQUENCY BAND
SWITCH: H.
Frequency: 20 MHz.
11
Same as step No. 10, Same as step No. 8.
Same as step No. 2.
Same as step No. 2.
except:
AN/URM-25F:
Frequency: 30 MHz.
12
Same as step No. 10, Same as step No. 9.
Same as step No. 2, except:
Same as step No. 2.
except:
Disconnect AN/URM-25F
AN/URM-25F:
when finished with test.
Frequency: 40 MHz.
13
Same as step No. 1,
Same as step No. 9.
Adjust ATTEN control for 0.1-
Same as step No. 2.
except:
volt output as indicated on
AN/URM-44A:
OUTPUT VOLTS meter.
FREQUENCY RANGE:
Adjust FINE FREQUENCY
C.
ADJUST for zero beat as
FREQUENCY: 65 MHz.
heard in headset.
MOD SELECTOR: CW.
Connect RF OUTPUT to
XTAL CAL: 5 MC.
AN/USM-159(*) ANT. jack.
Turn CORRECTOR control
for maximum output as
indicated on AN/USM-151(*)
14
Same as step No. 13.
Same as step No. 1,
Same as step No. 13.
Same as step No. 1.
except: RANGE: C.
Frequency: 65 MHz.
6-47
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