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• Multiple Group Attachments, group detachment and

group modification fully displayed

• Configurable Trunking Timers and Call Timers

• DTMF digits displayed during a call

• Mobile Originated Direct Mode call set-up and clear

down (requires Option 32)

• Direct Mode call set-up parameters displayed (requires

Option 32)

For more details refer to the IFR 2968 data sheet 46891/022

issue 9 (April 2002) and the IFR 2968 operating manual TETRA

supplement 46882/324 issue 10 (May 2002).

QQ11..66::

My IFR 2968 still has old Phase 2 software. What func-

tionality will I gain by purchasing the "2968 PHASE 3" option?

AA11..66::

The "2968 PHASE 3" option enables your IFR 2968 to be

upgraded to the latest Phase 3.2 software. The Phase 3.2

release also incorporates the enhancements introduced in the

two previous releases under the "2968 PHASE 3" option, Phase

3.0 and Phase 3.1.

Phase 3.0 was released in April 2000 with the following

enhancements w.r.t. Phase 2:

• Autotest

• TIPv2 compliant

• TCH and MCCH on different frequencies

• Transmission trunking

• Open Loop and Closed Loop power control

• Neighbour Cell Broadcast and Cell Re-Selection

• Mobile Originated Status and SDS

• Group Attachments

Phase 3.1 was released in January 2001 with the following

enhancements w.r.t. Phase 3.0:

• 800 MHz channel plan for Asia Pacific countries

• Zero offset channel plans and 410MHz channel plan with

-6.25 kHz offset

• Power reading in Watts as well as dBm

• Re-start measurement averaging

• Channel plan NO PLAN for direct entry in Hz

• Off-air capability by setting expected level -40dBm

• Pre-defined call types: Group, Private, Phone,

Emergency, User

• Mobile Terminated Phone Call with ESN

• Mobile Terminated Status and SDS

• Mobile Originated SDS-TL text message (limited length)

• Mobile Terminated SDS-TL text message (very limited)

Phase 3.2 was released in April 2002.

Refer to A1.5 above for details of the enhancements in Phase 3.2

w.r.t. Phase 3.1.

QQ11..77::

What functionality will I gain by purchasing Option 32

TETRA Direct Mode?

AA11..77::

The "TETRA DIRECT MODE" system (Option 32) is an addi-

tion to the "TETRA MOBILE" system (Option 30). When the TETRA

DIRECT MODE system is selected, the IFR 2968 does not emulate

a TETRA base station but receives and measures transmissions

from a TETRA mobile operating in direct mode. When a TETRA

mobile is set to operate in Direct Mode (DMO), it is able to trans-

mit autonomously without synchronising or registering to the test

set, and without requesting permission to transmit. No signalling

messages from the test set are required in response to a TETRA

mobile setting up a call in direct mode, nor is any such response

expected by the mobile. Simply holding the PTT starts transmis-

sion. The format of the transmitted bursts is slightly different in

direct mode, and the burst timing is decided by the mobile, not

by the test set. The IFR 2968 transmitter measurements are mod-

ified accordingly to ensure that the direct mode transmissions are

measured according to the direct mode specification.

QQ11..88::

Does Option 32 TETRA Direct Mode test any signalling

functions?

AA11..88::

Yes, with the current Phase 3.2 software. The IFR 2968 sup-

ports Mobile Originated Direct Mode Call Set-Up and Cleardown

in accordance with TTR 002 Direct Mode TIP v1.0.3. The IFR 2968

indicates when a direct mode call has been set up or cleared

down, and displays the following information sent by the Direct

Mode mobile relating to itself and the parameters of the call:

ITSI (MCC / MNC / SSI) of the mobile under test

Direct Mode power class of the mobile under test

Direct Mode call type (individual or group, clear mode or

encrypted)

Direct Mode call priority level (normal, high, pre-emptive or

emergency)

Called party ID (individual call) or called group ID (group call)

QQ11..99::

Can the IFR 2968 also set up a call to a Direct Mode

mobile?

AA11..99::

No. The IFR 2968 does not send any signalling to a Direct

Mode mobile, hence it does not support Mobile Terminated call

set-up and cleardown. This can be tested if required by using a

second Direct Mode mobile. The IFR 2968 should first be used to

determine that the transmitting Direct Mode mobile is within

specification, and to determine that the configurations and

parameters of the Direct Mode mobiles are compatible.

QQ11..1100::

If I purchase an IFR 2968 with only one of the TETRA sys-

tem options can I add other options at a later date?

AA11..1100::

Yes. The IFR 2968 can be purchased in one of the fol-

lowing configurations:

IFR 2968 + Option 30 TETRA MS + Option 31 TETRA BS +

Option 32 TETRA DM

IFR 2968 + Option 30 TETRA MS + Option 32 TETRA DM

1 2 3 4 5 6 7 8 9 10 11 ... 23 24

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