Comm 12 post radio jd

Question 1

2.3 The Post Radio shall be fully charged weekly (whether used or not) and after each use for at least 8 hours. Prolonged use may require up to 20 hours to fully charge.

Note: In case of emergency, the Incident Commander may switch the Post Radio to the tactical channel to broadcast their message. This should be done only for emergency transmissions. The Post Radio transmits at 45 watts. This higher power could cause interference over a wide area to units at another incident on the same tactical channel.

-2.9 Due to the radio frequency radiation hazard, members shall not be within 2 feet from a transmitting Post Radio. In addition, due to its high transmission wattage, the Post Radio may cause interference with electrical equipment.

Answer 1

A UHF cross band repeater can be used as a UHF radio, and has the ability to transmit UHF to VHF and VHF to UHF but can never be used solely as a VHF radio. Transmissions from the vehicle are sent out at 40 watts UHF and at 5 watts VHF.

•  Notify the Dispatcher of the intent to activate the repeater.
•  The repeater shall normally be set to the primary command channel, Channel 2.

- Remove VHF handie-talkie from charger. Check to see that the HT is set to Channel 2.
 Turn VHF handie-talkie on and depress push to talk button. Give a quick “test test.” The red light on repeater should illuminate. This indicates signal from VHF HT is
going through the repeater

Question 2

CROSS BAND REPEATER VHF HANDIE-TALKIE
- A yellow knob and a longer antenna identify the cross band repeater VHF handie-talkie.
 It is only programmed from channels 1-8.
 Radio transmits at 5 watts.
 The orange emergency button is disabled on the VHF H.T.
 Radio is charged in vehicle charger.
test
-Whenever the Battalion Vehicle Cross Band repeater is activated, only the Battalion Chief whose vehicle repeater was activated shall take the VHF Handie-Talkie to the Incident Command Post.
-The VHF Handie-Talkie must be set on the same Channel as the vehicle repeater. Initially, this will be channel 2, the command channel.

Answer 2

4. 4 A unique feature of the VHF Handie-Talkie is the ability to transmit through the vehicle repeater on several channels.
5. 5 If the Incident Command Post needs to reach a unit in the fire area in an emergency, they can still do so by using the VHF HT and going through the vehicle repeater on the tactical channel. This should only be done for emergency transmissions. Transmissions from the vehicle repeater transmit at 40 watts. This high power could cause interference over a wide area to units operating at another incident on the same tactical channel.

• Automatic Steering of Signal
  4. 6.1 The Incident Commander can switch channels on the VHF HT in order to transmit on different channels, if necessary. The Battalion vehicle repeater will recognize the signal from the VHF HT and then transmit on UHF on the same channel.

Question 3

6. UTILIZATION OF UHF/VHF VEHICLE CROSS BAND REPEATER SYSTEM
   Note: Only one operation utilizing a vehicle repeater shall be allowed citywide. The activation of a second repeater could deactivate the first repeater. If a second operation requires activation of the vehicle repeater, the dispatcher will inform the Incident Commander of the second operation that there is already a vehicle repeater in use. The second operation shall use “Post radio to Post radio” to effect communications. This second operation would have to operate on a different command channel so as not to interfere with the initial repeater operation.
   Additional options are Post Radio to vehicle UHF Mobile Repeater Radio without activating the repeater, or Post Radio to UHF Mobile Radio in DC/BC vehicles equipped without cross band repeater system.

Answer 3

6. 1 FIRST ARRIVING BATTALION
7. 1.1 The first arriving Battalion to a High-Rise incident that necessitates vehicle repeater activation shall notify the dispatcher that they are activating the vehicle cross band repeater. All Battalion vehicles shall have the vehicle repeater set initially to channel 2, the primary command channel. For optimal triangulation of the signal, the Battalion vehicle should be parked across the street from the operation.

-6.1.2 If the dispatcher informs the Battalion that a repeater operation is already in use, then the Battalion shall use “Post Radio to Post Radio” or consider “Utilization of UHF side of the Vehicle Repeater Radio without Activation of the Vehicle Cross band side of the Repeater.”

Question 4

• test*
  6. 1.5 All Battalions shall bring their Post radio into the lobby. The Battalion that activates their vehicle repeater is the only battalion to bring the VHF vehicle repeater handie-talkie into the lobby.
  6. 1.6 The first arriving Battalion shall bring the Post radio and the VHF vehicle repeater handie-talkie into the lobby of the fire building. The Post radio shall be set to the Primary Command Channel, Channel 2. The VHF vehicle repeater handie-talkie shall also be set on Channel 2.
  6. 1.7 The first arriving Battalion Chief shall report to the Fire Command Station and confer with the Fire Department member staffing the Incident Command Post and the building Fire Safety Director (FSD)

Answer 4

6. 3.3 Upon arrival at the second engine officer’s location, the second Battalion Chief shall get a briefing on operations from the engine officer, then take the Post radio from the engine officer and establish the Fire Sector/Branch in a favorable location.
7. 3.4 The second Battalion Chief will then make an announcement over the primary tactical channel of the handie-talkie radio that the Fire Sector/Branch is established and give the location, i.e., “Battalion 9 to all units, Battalion 9 is the Fire Sector Supervisor/Branch Director, the Fire Sector/Branch is located on the 38th floor near the C stairway”. Communications shall now be relayed through the Fire Sector/Branch.
8. 3.5 The Fire Sector Supervisor/Branch Director will then contact the ICP via the Post radio on the primary command channel and announce the establishment and location of the Fire Sector/Branch.
9. 3.7 The Battalion firefighter monitors the command channel of the Post radio (Channel 2).

Question 5

NOTES:
 If the first arriving Battalion is not equipped with a repeater, then the next Battalion arriving
with a repeater shall be notified through the dispatcher to activate their vehicle repeater and
bring the VHF handie-talkie to the Incident Commander.
 All battalions shall report into the lobby with their Post radios. Additional Post radios will
be assigned by the Incident Commander.

Answer 5

• *TEST**
•  If a Battalion is assigned as an Attack Chief, they can leave their Post radio at the Fire Sector/Branch. This Post radio would be set to the tactical channel (the Fire Sector Supervisor/Branch Director’s Post Radio is set on command). Because of its antenna, the Post radio is better equipped to receive transmissions than a handie-talkie.
• (sect/branch listen on post ch 1 , transmit post ch2 )

Question 6

UTILIZATION OF VEHICLE UHF REPEATER RADIO WITHOUT ACTIVATION OF VEHICLE REPEATER SYSTEM
-Only one vehicle cross band repeater activation shall be allowed citywide. The activation of a second repeater could deactivate the first repeater. However, more than one UHF vehicle repeater radio can be activated. This can be done without causing interference to simultaneous operations.
Each operation using a UHF vehicle repeater radio must have radios set to different command channels.

Answer 6

cont:

• c) The Chief at the second operation would then inform the dispatcher that they will be using a secondary command channel(4-8) at this incident. The dispatcher will notify incoming Chiefs of the designation of the secondary command channel.
  d) Turn on the vehicle repeater radio. Do not depress the yellow VRS button. The cross band repeater will not be engaged. The VHF vehicle repeater handie-talkie is not used at this operation. It stays in the charger in the Battalion vehicle for the duration of the operation. The Chief would then switch his Battalion vehicle repeater radio to the selected secondary command channel.
• e) The Chief will switch his/her Post radio to the secondary command channel and proceed to the lobby with the Post radio (set on secondary command channel).
  f) The Battalion firefighter remains in the Battalion vehicle. The Battalion firefighter can speak to the Chief on the command channel by using the white mic that is part of the vehicle repeater radio. This white mic is found on the side of the console.

Question 7

i) The Battalion firefighter can then relay messages via handie-talkie to the chief in the lobby.
j) The aide is able to communicate with the second Engine by using the repeater radio.
k) The second arriving Battalion Chief shall leave their Post radio with the Incident Commander (set on the secondary command channel). At this point, the first arriving Battalion firefighter shall report to the lobby.
* now have two post radios)

Answer 7

UHF MOBILE RADIO IN DC/BC VEHICLES
8.1 All Divisions and Battalion vehicles are equipped with a 40 watt UHF mobile radio that can be used for EMERGENCY TRANSMISSIONS. Maximum wattage will be achieved with the vehicle engine running.
8.2 The UHF radio can be used:
 When the Post Radio fails.
 When a second Post Radio is unavailable (Battalion firefighter can maintain
communications link with the Fire Sector/Branch on the Command Channel until a 2nd Post Radio arrives).
-Members should be aware that use of this radio is strictly for emergency transmissions only. Casual use of this radio will cause operations distant from the scene to be hampered by the stronger signal (40 watts compared to the HTs 2-5 watts of power).