Ch III Radio
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III-w1 Freq/Chan
III-w2 Repeater
III-w3 Relay
III-w4 Antenna
III-w5 Battery
III-p1 On/Off
III-p2 PTT
III-p3 Selector
III-p4 Squelch
III-p1 Communicate
III-w1 Radio Waves
III-w2 Radio Codes

Click on item of interest in left hand column.
Items correspond to OSSA questions.

Chapter III                                                          RADIO COMMUNICATIONS


Through written evaluation the applicant will identify:

w-1. The difference between a frequency and a channel.
w-2. The function of a repeater.
w-3. The function and operation of a manual relay.
w-4. The proper position of the antenna for best transmission and reception.
w-5. The importance of keeping the battery warm during cold weather.

The applicant will demonstrate the ability to identify the following components on their Search and Rescue radio:

p-1. On/Off and volume controls.
p-2. Push to talk switch.
p-3. Channel/frequency selector.
p-4. Squelch control.


The applicant will demonstrate the ability to:

p-1. Effectively communicate to another unit by radio using proper procedures and radio codes.
2. Change the radio’s batteries.
3. Change radio channel or frequency. 
4. Turn the radio on.
5. Select the proper channel.
6. Hold the radio for best transmission and reception.

Through written evaluation, the applicant will demonstrate:

w-1. A basic knowledge of radio wave performance and the effects that terrain, distance, and structures 
          have on Search and Rescue radio communications.
w-2. A basic knowledge of radio codes and procedures.
3. A basic knowledge of inter-unit communications.


BONUS Section   Click on bonus item of interest below

Ch.III-b1 Cross Band Repeaters

Click here to download a PowerPoint presentation titled 
                "Basic Search and Rescue Communications"  (69 Pages)