Range Exstension Flashcards
Capabilities of MICS?
100w, 100km range, talk thru mode, retrans mode,
What is retrans?
Joins 2 nets with different crypto
What is talk through?
Simply range extension with black mbitrs
Explain a simplex channel?
Tx and Rx is the same freq
Can’t talk at the same time
What is a dual simplex channel?
Tx and Rx are different freq
Can talk on the same net at the same time
What does trimars stand for and what is its capabilities?
Tri-mode rebro system
Rebro
Talk through
Vehicles
What capabilities does a 117F give?
Can connect two nets with different fills /crypto into a rebro
What does MICS stand for?
Mobile integrated communications system
Capabilities of MRC 200
20w, 20km, TT
Dump bag capabilities?
5w, Repeater, TT
What does TRIMRS stand for?
TRI MODE Rebro system
TRIMRS capabilities?
TT, Rebro system, 20w, 20km
An/Prc117F Capabilities?
Rebro, join 2nets with different crypto, 20w, 20 km
What is range extension?
Use of fixed or mobile repeater system to overcome the range limitations
Why is range extension required?
Insufficient quantities of equipment Range limitations Terrain factors Incompatible equipment Freq and comsec management problems
What is retrans/rebro?
Two radios on individual networks normally two separate frequency
What is a simplex channel?
Rx and Tx same frequency both radios cant talk at the same time
What is a half duplex channel?
Rx and Tx frequency different but can talk at the same time.
What crypto do the radios in the MRC 200 require?
None
In what mode would you use the TRI MRS in to provide tacsat?
Rebro
What kind of retrans is the MRC 200?
Black
What colour filter would you use in the MRC 200/TRI-MRS using 140 - 150 mhz ish?
White
What 2 aircraft can UKSF fit the MICS crate to?
C-130, CH-47
Describe a red retrans?
Both sides are different crypto States
Which radio on the MICS is used through the 100w amp? And why is this the case?
Tacsat radio/ only the tacsat a/e can withstand the power
What are the security implications of leaving a red retrans on a hill top unmanned ?
The radio is encrypted and can’t be left alone on a hill
When using the MRC 200 what would be the key factors affecting the choice of what filter to use ?
The frequencies
If you were tasked by your Yofs to link a LOS net on a the 486t to a tacsat net which is using 256 what piece of equipment would you use and what would you need?
Red retrans
Retrans cable
2* 117f
DMC 120 and broadband A/E
When using a black retrans what must the Rx radio be set to?
Rx only
Explain in your own words why UKSF use the MICS crate and what MICS stands for?
To connect UKSF radios into airframes antennas. Range extension. Mobile integrated communications system
What colour filter would you use in in the MRC 200/TRI-MRS if working between the freq range 140-160 MHz
Blue
What is a dual frequency simplex channel?
Channel that Rx on one frequency and Tx on another
What are the modes of the TRI-MRS
Vehicle, talk through and rebro
In what mode would you use the TRI-MRS to provide LOS TACSAT?
RB
What is the max power of the HPA on the MICS power crate?
100w
Explain in your own words why UKSF use the MICS crate and what MICS stands for?
To connect UKSF radios into the airframes antennas. Range extension.
Mobile Intergrated Communications System
How many batteries does the MRC use?
3
Duplexer frequencies?
RED 36 to 65 use the tactical dual band antenna Blue 140 - 160 Green - 266-294 yellow - 406 to 442 Orange 442-470
