Hey, I took the #$%@ quiz and it thinks I'm borderline
- got an 85. Of course, I didn't see any warning
that I should have a formula sheet and calculator
onhand - it sure would have helped.
like that it doesn't even tell you which questions
you get right or wrong. Just a score at the end.
I'd like to know how anyone got the 147 scores?
My guess is taking it multiple times under different
Anyway, I did screen captures on
each question just so I could have a record to check
myself. Here they are for your study period prior
to taking the quiz.
Anyone care to give us
all your choices for the answers - showing your
solutions gets you extra credit.
If a 10MHz modulated signal is transmitted
on a 2GHz carrier frequency, what is the best fit
for the minimum sample rate rate required to demodulate
This type of antenna is capable
of being used at more than one frequency band due
to the presence of a parallel LC network:
B: Loop antenna
D: Trap antenna
What is 2 RADAR
What would be the smallest
and most efficient aperture for a slot antenna radiation
of a 2GHz signal?
A: 6 inches
B: 12 inches
D: 3 inches
A 0.5m stub (monopole)
antenna over an infinite ground plane will be resonant
at what fundamental frequency?
A: 300 MHz
B: 150 MHz
C. 600 MHz
What is the condition that would BEST indicate a
Receiver Selectivity problem?
A: Two transmitters
of similar modulation received into the same antenna
amplifier and filter section.
B: An increase
in the noise floor impacting C/N ratio of the desired
C: An out-of-channel signal that is able
to force the receiver LNA into compression thus
D: A high level signal
in channel that prevents desired signals from being
What is the voltage gain from
1 uV to 0.1 V?
A: 140 dB
B: 70 dB
D: 50 dB
An antenna is assumed
to be matched when
A: Impedance is approximately
equal to 50 ohms.
B: SWR (standing wave ratio)
equals approximately 0.
C: Impedance is equivalent
to free space impedance.
D: Antenna impedance
is purely resistive.
What is the average
power of a pulsed signal with the following characteristics:
(PRF = 1 kHz, PW = 1 us, Peak Power = 100 kW)?
A: 1 W
B: 10 W
C: 100 W
D: 1 kW
Is the PRF (Pulse Repetition Frequency) of a
puls is 5 kHz, what is the PRI (Pulse Repetition
A: 20 us
B: 200 us
C: 500 us
D: 2 ms
What type of jitter is UNBOUNDED?
A: Random Jitter
B: Periodic Jitter
D: Duty cycle Jitter
Which is not a factor increasing spectral emissions?
A: Increased risetime
B: Increased attenuation
C: Memory effects
D: Baseband signal clipping
What reading represents the lowest level signal?
A: 87 dBuV
B: -10 dBm
D: -40 dBW
An input to a power sensor says DO NOT EXCEED
100 V. What is that power level?
A: 19 dBm
B: 53 dBm
C: 130 dBuV
D: 33 dBm
a 20 MHz modulated signal is transmitted on a 1
GHz carrier, what is the bandwidth required to see
the 5th order intermodulation products?
B: 1.05 GHz
C: 5 GHz
D: 1010 MHz
Which is an expected advantage of MIMO (Multi-input
A: Improved spectral
B: Improved spatial efficiency
C: Reduced receiver complexity
D: Lower latency
What component is not likely to have non-linear
A: Band pass LC filter
C: Power Amp
D: Oscillating Filter
To reduce common mode coupling from antenna
to receiver, one might:
A: Eliminate the balun
B: Change Rx antenna polarization
C: Use twisted
pair or change the dielectric constant
a ferrite core on the antenna feed line
is the approximate average power of the five power
meter readings: (+40 dBm, +10 dBm, +3 dBm, +10 dBm,
A: ~13 dBm
B: ~33 dBm
C: ~10 dBm
D: None of the above
A baseband system
has a residual EVM of 3%. If a gain block with a
4% EVM is added to the baseband and the errors are
able to sum coherently, what would the overall system