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45 Cards in this Set
- Front
- Back
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What is the reference designator of the BITE module? |
1A1A11 |
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What is the frequency range of the AN/WSC-3? |
225.000 MHz to 399.975 MHz |
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What is the transmit power output in AM? |
30 Watts |
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What ratio of VSWR is the transmitter protected from? |
4:1 Ratio (found in Chapter 1 in the Tech Pub) |
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What is the operating temperature of the AN/WSC-3? |
0-50 Celsius |
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30 Watts is equal to how many dbw (decibel watts)? |
14.8 dbw |
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What is the function of the TEST KEY switch when in the ON position? |
Continuously keys the transmitter |
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What is the function of the CARRIER ON indicator? |
Indicates that the AN/WSC-3 transmit carrier is present |
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What is the reference designator of the Receiver Front End? |
1A1A18 |
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What mode of operation is modulated in the 1A1A8 Synthesizer? |
FM |
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What three voltages do external shutdown NOT shut off? (Which voltages are present in standby?) |
+225,+68,+28 |
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The L.O. frequency from the 1A1A8 is _______MHz offset from the window frequency. |
70 |
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What is the model number of the handset unit? |
H-169/U (Not found in Tech Pub) |
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What does meter 1A1M1 indicate? |
Total Operating Time |
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How many amperes is fuse 1A1F1? |
15 Amps |
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What does 1A1DS5 indicate? |
Malfunction |
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How many preset channels can be programmed into the AN/WSC-3? |
20 |
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The BITE Summing Circuit in the 1A1A2 outputs which BITE? |
BITE 1 |
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1A1A2 A2J10 measures which voltages? |
+19.5 VDC |
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When measuring 1A1W27J9 INT STD, what will be seen? |
5 MHz |
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A logic level low at 1A1A25 P1-17 will select what? |
Secure |
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What is the output of 1A1A6 P5? |
70 MHz |
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Is the AM RF Carrier already modulated when it passes through the 1A1A6? |
No |
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What is the next card that the ALC goes to after it leaves the 1A1A1A10? |
1A1A1A9 Distribution Board |
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In normal operation, with nothing faulty, what logic level should be seen at 1A1A1A10 J1? |
5 VDC |
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What does BITE 12 monitor? |
VSWR |
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Does FM plain voice pass through the 1A1A15 AM detector? |
Yes |
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Does AM plain voice pass though the 1A1A14 FM detector? |
No |
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Which BITE signals leave the 1A1A15 and go directly to the 1A1S5B? |
15,16 |
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BITE 17 enters the 1A1A21 as 1.2 KHz and leaves as........ |
RF Noise |
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If the EMP Protect SW on the 1A1A21 goes bad, would there be any noticeable indications? |
Only if a nuclear bomb was detonated nearby |
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When conducting BITE tests 13, 14, 15, or 16, 1A1A18 P1-14 should read what logic level? |
High (12 VDC) |
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With a receive RF frequency of 250 MHz what will the 1st L.O. frequency be? |
320 MHz |
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With a receive RF frequency of 320 MHz what will the 1st L.O. frequency be? |
390 MHz |
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What is the frequency of the 1st I.F.? |
70 MHz |
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What is the frequency of the 2nd L.O.? |
44.5 MHz |
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Which module contains the BITE detector for BITE 14? |
1A1A16 |
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BITE 16 and FM IF leave the 1A1A16 at what point? |
P7 |
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A logic level low (-11 VDC) at 1A1A14 P1-2 will cause the FM output gate to... |
Shut Off |
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A logic level low at 1A1A12 P1-22 will cause what to be seen on J2? |
1.2 KHz Square Wave |
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A logic level high (6.2 VDC) at 1A1A12 P1-30 will cause what to be seen on J3? |
Logic Level Low |
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When transmitting, what signal is present at test point 1A1A9 A2J11? |
Logic Level Low (Ground) |
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With a logic level low at the input of 1A1A8 P1-14 what mode of operation will be selected? |
Transmit |
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Which BITE tests require the use of 1A1S7 (Test Key)? |
10, 11, 12 |
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1A1A23 is the reference designator of which module? |
RF Oscillator |
