Comms Flashcards
Comms
What is UHF and VHF
● Ultra- high Frequency
● Frequency better suited for short distances
● indoors
● Very-high Frequency
● Frequencies better suited for long distance
What does TRN stand for?
TRN = Trunked Radio Network
What are the three types of radios used in ACTFR and their signal strength?
what is the highest output?
- Portable radio Hand held 5W
- Mobile radio Mounted in vehicle 25W
- Base station In building 10W
What is Zone A?
● OPS1 = monitored and used for most day to day communication
● 17 talk groups
● OPS 2-6 are incident channels
● OPS 8 is command channel
● Includes parliament house (channel 14 private network)
● 2 simplex channels, 2 NSW channels
What is Zone B?
● National simplex channels
● Southern region RFS
● Hazard reduction burns
What is Zone CT?
Common to ESA
What is Zone DZ?
● Disaster Zone
● Used during network failure
● Locked to one tower
● 1-11 are locked to black mountain
● 18-30 are locked onto individual towers
What is a Simplex Network vs a Trunked Radio Network?
Simplex:
● Simplex are only able to be used in close range
● Radio to radio, off the network, not monitored
● Isn’t affected by radio shadow
TRN:
● Connected to other radio networks i.e. Comcen
● Potentially other radio networks can encrypt
Name the TRN Sites around Canberra?
- One tree hill
- Mt Ainslie
- Black Mt
- Mt Stromlo
- Mt Ginini
- Mt Tennent
- Tuggeranong Hill
- Mt Jerrabomberra
- Mt Clear
What does RSSI stand for?
Received Signal Strength Indicator
What does the key symbol on the radio mean?
The Channel is encrypted
What does the Yellow radio messages indicate?
● General, non urgent communication
● Reporting inventory etc
What does the Green radio messages indicate?
● S.O. Responsibility
● Given at the end of an incident
What does the Blue radio messages indicate?
● Relating to an active incident
What does the White radio messages indicate?
● Priority
● Report new incident whilst mobile
