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

IFR 2968 + Option 30 TETRA MS

IFR 2968 + Option 31 TETRA BS

Further options can be purchased at a later date if not purchased

initially. Please contact your local IFR sales representative or dis-

tributor for a quotation.

QQ11..1111::

Can I purchase an IFR 2968 with none of the TETRA sys-

tem options initially and add one or more TETRA options at a later

date?

AA11..1111::

No. At least one of Option 30 TETRA MS or Option 31

TETRA BS must be included at the time of initial purchase.

QQ11..1122::

Can I purchase an IFR 2968 with Option 32 TETRA DM

and add Option 30 TETRA MS at a later date?

AA11..1122::

No. Option 32 TETRA DM is only available as an addition

to Option 30 TETRA MS.

QQ11..1133::

Does the IFR 2968 have an option for 800 MHz TETRA

systems?

AA11..1133::

Yes, but it is not an optional extra. 800 MHz TETRA is

included as standard with its own pre-defined channel plan. The

IFR 2968 also includes as standard the ability to test any TETRA

system at any frequency from 100 MHz up to 1 GHz.

QQ11..1144::

Does the IFR 2968 have a DC supply or battery pack

option?

AA11..1144::

No, operation is only possible from AC mains power. If

you need to operate the test set from a low voltage DC supply

(e.g. in a vehicle) you are recommended to obtain an inverter with

adequate power. You may find that you can obtain a suitable

inverter intended for operating mains powered appliances in car-

avans. IFR has not evaluated any such inverters and is not able to

recommend particular products, therefore you should ensure that

the AC supply requirements of the IFR 2968 are satisfied.

QQ11..1155::

Does the IFR 2968 include automatic testing?

AA11..1155::

Yes. Autotest mode for testing mobiles was introduced in

Phase 3.0, and has been further enhanced in the latest Phase 3.2

release. Automatic test programs can include functional tests

(registration, call set-up, call clear-down) as well as parametric

tests (radio measurements). Phase 3.2 autotest provides the flex-

ibility of up to six separate call set-up and clear-down tests as well

as the ability to test receiver sensitivity automatically using TETRA

Test (TT) mode RF loopback Bit Error Rate (BER) measurement.

QQ11..1166::

Can the IFR 2968 test other radio systems besides

TETRA?

AA11..1166::

Yes. GSM digital cellular, MPT 1327 analogue trunking and

automated analogue PMR testing can be added as options, either

at time of initial purchase or at a later date. Legacy analogue cel-

lular systems (AMPS, TACS, NMT 900/450) options are also avail-

able. The IFR 2968 also provides as standard traditional analogue

radio testing capability for mobiles using FM, AM or PM modula-

tion up to 1 GHz. Note that the GSM option only tests 900 MHz

or lower frequency GSM mobiles, or the 900 MHz band of dual

band/tri-band GSM mobiles, not the 1800 MHz or 1900 MHz

bands. Dual band and tri-band GSM mobiles are supported by the

IFR 2935 and IFR 2967 radio test sets.

QQ11..1177::

Does the IFR 2968 support Tetrapol?

AA11..1177::

No. Despite the similar sounding name, Tetrapol is not

related to TETRA. Tetrapol is a proprietary FDMA PMR system

from EADS-DSN Cogent (formerly Matra Communications) and is

a completely different system from TETRA. IFR has no plans to

provide system specific support for Tetrapol on the IFR 2968.

However, since Tetrapol is an FDMA system, many of the meas-

urements can be made using the traditional analogue radio test-

ing capability of the IFR 2968.

QQ11..1188::

Can the IFR 2968 test US PMR/PAMR/SMR systems such

as P25, EDACS, iDEN?

AA11..1188::

No. However, P25 (APCO Project 25) is supported on the

IFR 2975 Radio Test Set. Refer to www.p25.com for details. EDACS

is supported on the IFR 2945A and COM 120C Radio Test Sets.

iDEN is a proprietary system from Motorola which is not current-

ly supported by any IFR Radio Test Set. IFR has no plans to sup-

port P25, EDACS or iDEN on the IFR 2968.

QQ11..1199::

Can I have a 2965A, 2966A or 2967 upgraded to a

2968?

AA11..1199::

No, these instruments cannot support TETRA.

QQ11..2200::

Is there an IFR TETRA Test SIM available, as there is for

GSM?

AA11..2200::

No. TETRA mobiles do not currently use SIMs, although a

few do include a SIM holder. Currently all TETRA mobiles have to

be configured using programming and customisation tools,

although TETRA SIMs may be used in future. Currently there is no

specification for a test version of the TETRA SIM as there is for

GSM. This situation may change in future.

QQ11..2211::

Does IFR supply cables, connectors and adaptors for con-

necting to TETRA mobiles?

AA11..2211::

Yes and no. A small number of standard cables and adap-

tors (N-type, TNC, BNC) are available as accessories (refer to the

IFR 2968 data sheet or contact your local IFR sales representa-

tive). For a wider selection of standard types you should consult

your usual electrical distributor catalogues or specialist accessory

suppliers. For proprietary connections you will normally need to

contact the manufacturer or distributor of the mobile.

Section 2 Q&A: Testing mobile and base station trans-

mitters

QQ22..11::

How do I use the 2968 to control the mobile to transmit

at a particular power level?

AA22..11::

TETRA mobiles use Open Loop Power Control (OLPC) in

which the mobile calculates the power level at which to transmit,

based on the strength of the signal received from the base sta-

tion. A mobile that is close to a base station will receive a strong

signal, consequently it can transmit at a low power level. When the

mobile is connected to the IFR 2968, the power is determined by

the strength of the received signal, i.e. the 2968 RF Generator

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