Sepura SC21 Series Quick Reference Guide

5
Alarm Calls
Press and hold the Emergency button (for 2
seconds). Press the PTT button and speak into the
top microphone. If your radio is customised for
‘live microphone’ you can speak with out holding
the PTT button for a period of time.
Make a Group
call
Press and hold the PTT button and speak into
the top microphone. When you have nished
speaking, release the PTT button to listen to the
other radio users through the loudspeaker. To
end the call, press the Clear context key or the
Cancel/Home key.
Make an
individual call
From the Home screen, press the Menu context
key. Select Phone > Contacts to open the
contacts menu. Use the navigation keys to scroll
to the folder containing the contact details and
select your contact. Press the Open context key,
and select the contact’s phone number. Press the
PTT button to make the call and speak into the
top microphone. To end the call, press the Clear
context key or the Cancel/Home key.
Make a
telephone call
From the Home screen, press the Menu context
key. Select Phone > Contacts to open the
contacts menu. Use the navigation keys to scroll
to the folder and select your contact.
Press the Open context key, select the phone
number and press the Dial context key to make
the call. Hold the radio like a mobile phone,
close to your ear and speak into the bottom
microphone. To end the call, press the Clear
context key or the Cancel/Home key.
Your radio has a powerful loudspeaker. Always
check the type of incoming call before placing the
radio close to your ear.
!

Sepura SC21 Series Specifications

General

IP Rating	IP54
Operating Temperature	-20°C to +55°C
Channel Spacing	25 kHz
Ingress Protection	IP54
Channels	Up to 2000
Frequency Bands	380-430 MHz, 806-870 MHz
Battery Life	Up to 14 hours
RF Power Output	1W
TETRA Air Interface	ETSI EN 300 392-2