Specifications

Testing

Rev 8 Apr.14 Proprietary and Confidential - Contents subject to change 81

To test the DUT’s transmitter path:

Note: This procedure

describes steps using the

"Power Meter: Gigatronics

8651A” (with Option 12

and Power Sensor

80701A).

1. Set up the power meter:

a. Make sure the meter has been given sufficient time to warm up, if

necessary, to enable it to take accurate measurements.

b. Zero-calibrate the meter.

c. Enable MAP mode.

2. Prepare the DUT using the following AT commands:

AT!ENTERCND=”<password>”(Unlock extended AT command set.)

AT!DAFTMACT (Enter test mode.)

AT!DASBAND=<bandValue> (Set frequency band.)

· See Table C-1 on page 80 for appropriate <bandValue> values

AT!DASCHAN=<channel> (Set modem channel)

· See Table C-1 on page 80 for appropriate <channel> values

e. (GSM mode only)

AT!DAGSTXFRAME=0, 1, 3000, 0 (Set Tx frame structure.)

f. AT!DASTXON (Turns on the transmit path.)

g. (WCDMA mode only)

AT!DAWSTXCW=0 (Use a modulated carrier.)

AT!DASPDM=2, 75 (Set the power level. Repeat command with

different offsets until desired Tx power is obtained.)

AT!DAWSPARANGE=3 (Set to high PA gain state.)

h. Offset the tracking (If necessary, repeat with different offsets until the

desired frequency is obtained.)

(WCDMA mode) AT!DASPDM=4,35100

(GSM mode) AT!DASPDM=0,2240

GSM

Band # GSM850 GSM900 DCS1800 PCS1900

n/a

Band ID 18 10 11 12

Channel

190 65 697 661

a. Either 15 (WCDMA1900A) or 16 (WCDMA1900B) may be used for testing.

b. Channel values shown are at the center of the corresponding bands.

Table C-1: Test settings—UMTS transmission path (Continued)

Mode

Test