|
What minimum number of boundary conditions must be satisfied for ___
|
|
0
|
144
|
June 15, 2022
|
|
H lines have which of the following distinctive characteristics?
|
|
0
|
167
|
June 15, 2022
|
|
A difference in potential across a dielectric causes which of the following fields to develop?
|
|
0
|
220
|
June 14, 2022
|
|
Which of the following fields is/are present in wave guides?
|
|
0
|
233
|
June 14, 2022
|
|
In practical applications, which of the following dimensions describes ___
|
|
0
|
148
|
June 14, 2022
|
|
The cutoff frequency for a wave-guide is controlled by the physical dimensions of ___
|
|
0
|
228
|
June 14, 2022
|
|
If frequency is decreased, what change, if any, will be required in ___
|
|
0
|
168
|
June 14, 2022
|
|
The range of operating frequencies is determined by ___
|
|
0
|
114
|
June 14, 2022
|
|
At very high frequencies, which of the following devices works best as an insulator?
|
|
0
|
178
|
June 14, 2022
|
|
At very high frequencies, ordinary insulators in ___
|
|
0
|
148
|
June 14, 2022
|
|
Which of the following characteristics of a waveguide causes the lower-frequency limitation?
|
|
0
|
149
|
June 14, 2022
|
|
Which of the following dielectrics is used in waveguides?
|
|
0
|
137
|
June 14, 2022
|
|
In a coaxial line, the current-carrying area of the inner conductor is ___
|
|
0
|
131
|
June 14, 2022
|
|
Copper (I2R) losses are reduced by what physical property of waveguides?
|
|
0
|
250
|
June 14, 2022
|
|
The most efficient transfer of electromagnetic energy can be ___
|
|
0
|
143
|
June 14, 2022
|
|
Coaxial lines are more efficient than two-wire lines at microwave frequencies for ___
|
|
0
|
190
|
June 14, 2022
|
|
Microwave theory is based on the action of which of the following fields?
|
|
0
|
193
|
June 14, 2022
|
|
The portion of the electromagnetic spectrum which falls between ___
|
|
0
|
227
|
June 14, 2022
|
|
What type of circuit can be used to convert from ppm to pdm for demodulation?
|
|
0
|
241
|
June 10, 2022
|
|
What type(s) of modulation is/are normally detected by first ___
|
|
0
|
224
|
June 10, 2022
|
|
To detect pulse-duration modulation, the low-pass filter components must be ___
|
|
0
|
237
|
June 10, 2022
|
|
When a pulse-duration modulated signal is ___
|
|
0
|
211
|
June 10, 2022
|
|
What change must be made to the circuit to detect pulse-duration modulation?
|
|
0
|
221
|
June 10, 2022
|
|
Which, if any, of the following functions is the purpose of CR2?
|
|
0
|
215
|
June 10, 2022
|
|
To detect pulse-amplitude modulation, what value must the ___
|
|
0
|
205
|
June 10, 2022
|
|
Which of the following circuits can be used as a communications pulse demodulator?
|
|
0
|
167
|
June 10, 2022
|
|
To demodulate a phase-modulated signal, which, if any, of the following ___
|
|
0
|
188
|
June 10, 2022
|
|
ABOVE the center frequency of the hosted at received ___
|
|
0
|
165
|
June 10, 2022
|
|
For plate current to flow, what must be the polarities of ___
|
|
0
|
230
|
June 10, 2022
|
|
What type of tank circuit is the quadrature tank (L3 and C3)?
|
|
0
|
208
|
June 10, 2022
|