Agilent Technologies 8922S Bedienungsanleitung PDF herunterladen (Seite 4)

Troubleshoot in test mode

What if the mobile is unable to find service and

make a call and you can’t find the source of the

problem? With a single key press, the test set can

be put into a special test mode, allowing un-syn-

chronized mobile operation. The transmit and

receive portion of the mobile can then be meas-

ured separately.

Simplify mobile test

SIM (Subscriber Identity Module) cards are avail-

able to simplify mobile test by matching the infor-

mation on the card (IMSI, MCC, MNC) with that on

the test set. They also enable the mobile to be put

into a special loop-back mode to perform the

receiver bit-error-rate test.

Compatibility

If you already own an 8922F/H test set, these can

be upgraded to 8922S/M. Contact your Agilent

Technologies representative for details. You can

take advantage of the higher performance without

re-writing your production test code. Code written

for the 8922G or 8922H test set is compatible with

the 8922M.

To facilitate traceable testing, the 8922S/M test sets gener-

ally follow the procedures as outlined in the associated

GSM recommendations, but do not necessarily meet the

exact requirements or cover all ranges, limits or conditions

required for type testing.

Agilent 8922S/M tests Associated

GSM specifications

11.10 tests

Transceiver frequency bands II.2.1.1

Transceiver RF channels and numbering II.2.1.2

Transceiver frequency hopping II.2.1.3

Transceiver spurious emissions

II.2.2

Tx peak transmitted power II.3.3

Tx RF spectrum due to switching

II.3.4

Tx RF spectrum due to modulation

II.3.4

Tx amplitude envelope II.3.3

(top 30 dB, and –70 dBc point)

Tx phase error and frequency error II.3.1

Rx sensitivity II.4.2

Rx usable input level range II.4.3

Rx co-channel rejection

II.4.4

Rx adjacent channel rejection II.4.5

(same frequency/different timeslot)

(different frequency/same timeslot)

Rx intermodulation rejection

II.4.6

Rx blocking and spurious response

II.4.7

Timebase tuning range Production test

1 The 8922S/M have limited capability for this measurement (< 1 GHz, and limited

resolution bandwidth and spans).

2 The 8922S/M test set use a 3 pole resolution bandwidth filter to make these

measurements.

3 8922M test set only; an additional RF source, such as the 8657 Option 022 0.3

GMSK signal generator, is required to make this measurement.

4 An additional CW RF source (frequency range of 100 kHz to 12.75 GHz, no modu-

lation needed) is required to make this measurement.

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