Why we use Radio, not cellular phone or Satellite phone?

Make possible voice delivery and data
Hurry: walk with velocity of light
Can be used almost at all locations, permanent base or mobile.
Easy used
Can talk with many people
During concurrent.

Why we must know how to use

 
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May be only you save in a accident.
You must can use radio although just for emergencies.

Why we use communication with VHF & HF

Welfare staff be principal priority in a operation/works
Movement detection staff/convoy
Staff must can call for aid in every moment
Internal coordination and external during operation

How to use Radio With well procedure

Investigate all connections antenna, PSU, battery, microphone (Every week only)
Make sure your radio is ON

Use in frequency that determined
Before call, think what you want to submitted message

For long discussion change in other channel
begin with call sign opponent
then introduce your self clearly
don’t hunted – hunt.
utilize English well mannered and true.
Don’t interrupt to /change topic before [...]

Example for calling in HF (Codan)

First, you use sell call (See in View addressed)
If any responses, you can start with voice :
India bravo mike base this is India tango mike base, do you receive me … over.
(you call Banda Aceh base station)
India tango mike base, this is India Bravo mike base, send your massage…over
When does opponent doesn’t here, [...]

HF Working Frequency

HF (High Frequency) CODAN
CHANNEL IOM : 8787 Khz
CHANNEL UN 1 [...]

HF Network

Repeater System