# | Question,A,160 | Used,A,1 | This,A,1 | Blank Line,A,1
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1 | What does a dip in power amplifier plate current indicate when tuning a transmitter? | | | |
2 | The input power to the final stage is 200 watts the output power is 125 watts. Why? | | | |
3 | A carrier wave is produced by ______. | | | |
4 | For greatest efficiency the output stage of an FM transmitter would be operated Class ___. | | | |
5 | What class would the output stage of a CW transmitter be operated as? | | | |
6 | Why is neutralization required in the output stage of a transmitter? | | | |
7 | What type of transmitter would be the simplest to build? | | | |
8 | To ensure continuous oscillation how much of the output must be fed back? | | | |
9 | When transmitting CW how can key clicks be prevented? | | | |
10 | Where is the speech amplifier located in a transmitter? | | | |
11 | In diagram 31 the local oscillator or HFO is represented by block _________. | | | |
12 | In diagram 31 the audio output stage is represented by block _________. | | | |
13 | In diagram 31 the RF amplifier is represented by block ________. | | | |
14 | A carrier wave is produced by _____________. | | | |
15 | What are the names given to the two states of the teleprinter codes in most common use? | | | |
16 | In diagram 31 block D represents the __________. | | | |
17 | In diagram 31 block E represents the __________. | | | |
18 | In diagram 31 block A represents the ____________. | | | |
19 | In diagram 31 block B represents the ____________. | | | |
20 | In diagram 31 block C represents the ____________. | | | |
21 | In diagram 31 if switch S1A is closed and S1B is open which mode does the transmitter work in? | | | |
22 | In diagram 33 block A represents the __________. | | | |
23 | In diagram 33 block B represents the _________. | | | |
24 | In diagram 33 block C represents the __________. | | | |
25 | In diagram 33 block D represents the __________. | | | |
26 | In diagram 33 block E represents the __________. | | | |
27 | In diagram 33 block F represents the __________. | | | |
28 | In diagram 33 block G represents the ___________. | | | |
29 | In diagram 35 block A represents the ___________. | | | |
30 | In diagram 35 block B represents the ___________. | | | |
31 | In diagram 35 block C represents the ___________. | | | |
32 | In diagram 35 block D represents the ___________. | | | |
33 | In diagram 35 block E represents the ___________. | | | |
34 | What is the purpose of a doubler amplifier stage in a transmitter? | | | |
35 | What is the purpose of a local oscillator in a superheterodyne receiver? | | | |
36 | When tuning a transmitter a dip in power amplifier plate current indicates ___________. | | | |
37 | When tuning the collector circuit of a power amp. which has a meter in the emitter cct. You tune the meter for a _____. | | | |
38 | Describe the procedure to tune the final amplifier of a transmitter. | | | |
39 | Where is a dummy load connected? | | | |
40 | How can key clicks be prevented? | | | |
41 | What is an interlock and why is it used? | | | |
42 | What device gives the most accurate indication of frequency? | | | |
43 | Your transmitter is causing interference on channel 3 only while operating on 15 metres. What is the likely cause? | | | |
44 | Which filter should be installed at the output of the transmitter to reduce harmonic output? | | | |
45 | What is the most common method of eliminating one sideband in an SSB transmitter? | | | |
46 | A vswr meter in the reverse switch position provides a reading of __________. | | | |
47 | An amateur station is being heard across the entire dial of a broadcast receiver. What is the most likely cause? | | | |
48 | Diagram 36 is a __________. | | | |
49 | What device would you use at the television to reduce RF energy from your transmitter from affecting it? | | | |
50 | Many of the new transistorized broadband transmitters use a ______ filter in the output of the transmitter. | | | |
51 | Minimum plate current on the meter of the R.F. amplifier plate circuit of a transmitter indicates that __________. | | | |
52 | One of the principal causes of TVI from VHF transmitters operating on 50 MHz is ___________. | | | |
53 | How can sparking be reduced on the contacts of a morse key? | | | |
54 | What is the purpose of using a three wire power cord and plug on amateur equipment? | | | |
55 | A transmission line exhibiting reactance at its input terminals is caused by ___________. | | | |
56 | What is the correct instrument to measure plate current in a transmitter? | | | |
57 | What usually causes cross modulation? | | | |
58 | What is a low pass filter used for and where is it connected? | | |
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