Vol3 CDC 3D153 Ure1
This is to be used as a study in the 3D153 CDC test.
- 1.(401) When using space diversity, the AN/TRC–170 receive antenna spacing should be a minimum of?
- A.
10 Wavelengths apart
- B.
25 Wavelengths apart
- C.
50 Wavelengths apart
- D.
100 Wavelengths apart
- 2.(401) Which type of diversity requires two antennas, two receivers, and two transmitters?
- A.
Polarization
- B.
Crossband
- C.
Frequency
- D.
Space
- 3.(401) In an AN/TRC–170 terminal, the quantity of digital group multiplexer units supplied and their application are?
- A.
Different in the V2 and V3 systems
- B.
Identical in the V2 and V3 systems
- C.
Dependent on the mission and number of channels
- D.
Dependent on the deployment of the technical control
- 4.(401) The MD–1026 digital data modem can interface up to four groups of?
- A.
Balanced non-return-to-zero (NRZ) signals
- B.
Conditioned diphase signals
- C.
Unbalanced NRZ signals
- D.
Isochronous signals
- 5.(401) Which type of encryption device does full-duplex encryption of AN/TRC–170’s group or supergroup mission traffic?
- A.
KY-68 digiital secure voice terminal/phone
- B.
KY-58 VINSON encryption device
- C.
KG-84 dedicated loop encryption device
- D.
KG-81 trunk encryption device
- 6.(401) Digital voice orderwire traffic that originates at the AN/TRC–170’s voice orderwire control unit is encrypted by the?
- A.
KY-68 digital secure voice terminal/phone
- B.
KY-58 VINSON encryption device
- C.
KG-84 dedicated loop encryption device
- D.
KG-81 trunk encryption device
- 7.(401) Which jack field in the AN/TRC–170’s baseband patch panel provides timing and data connections?
- A.
Middle
- B.
Center
- C.
Upper
- D.
Lower
- 8.(401) The tropospheric scatter modem processes mission traffic at data rates of 128 through 4,096 Kbps in the?
- A.
512 Kbps data rate family
- B.
576 Kbps data rate family
- C.
1,024 Kbps data rate family
- D.
1,152 Kbps data rate family
- 9.(401) Which unit in the AN/TRC–170 terminal contains the rubidium standard?
- A.
Electrical frequency synthesizer.
- B.
Frequency subsystem unit.
- C.
Tropospheric scatter modem.
- D.
Transmitter-amplifier converter.
- 10.(401) The quick reaction antenna for the V3 AN/TRC–170 terminal uses
- A.
Two 6-foot-diameter, linearly dual-polarized antennas.
- B.
Four 6-foot-diameter, linearly dual-polarized antennas.
- C.
Two 9.5-foot-diameter, linearly dual-polarized antennas.
- D.
Four 9.5-foot-diameter, linearly dual-polarized antennas.
- 11.(402) The Tropo/Satellite Support Radio frequency coverage extends from?
- A.
4.4 to 5.25 GHz.
- B.
7.25 to 8.4 GHz.
- C.
14.4 to 15.25 GHz.
- D.
17.25 to 18.4 GHz
- 12.(402) The maximum distance a Tropo/Satellite Support Radio can operate with the 2-foot antenna is?
- A.
10 miles
- B.
25 miles
- C.
100 miles
- D.
250 miles
- 13.(402) In the Tropo/Satellite Support Radio’s baseband assembly, a 1-volt peak-to-peak input signal results in how much frequency deviation in the transmitter?
- A.
±4 MHz.
- B.
Less than ±4 MHz.
- C.
More than ±4 MHz.
- D.
No signal deviation
- 14.(402) In the Tropo/Satellite Support Radio frequency assembly, what permits the transmitter and receiver to be connected to the same antenna?
- A.
Circulator
- B.
Combiner.
- C.
Coupler.
- D.
Hybrid.
- 15.(402) What is the intermediate frequency of the Tropo/Satellite Support Radio?
- A.
70 MHz with a 10 MHz bandpass.
- B.
70 MHz with a 20 MHz bandpass.
- C.
700 MHz with a 10 MHz bandpass.
- D.
700 MHz with a 20 MHz bandpass.
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