Xplore Technologies Corp. MC7750 Manual Do Utilizador

Product Technical Specification & Customer Design Guidelines

Proprietary and Confidential - Contents subject to change

2400074

Note: The dBm value displayed is calculated to reflect the power at the input connector.

AT!RX2=1

(Turn on diversity receiver.)

AT!RX2AGC?

(Read back the power level, in dBm, from the diversity

receiver.)



Response examples:
·

RX2AGC = 0xFFFFFF76 = -84 dBm (Signal generator’s RF port is
OFF)

RX2AGC = 0xFFFFFFC6 = -69 dBm typical (Signal generator’s RF
port is ON)

AT!RX=0

(Turn off main receiver.)

AT!RX2=0

(Turn off diversity receiver.)

Test limits — Run ten or more good DUTs through this test procedure to
obtain a nominal received power value.
· Apply a tolerance of



5 to 6 dB to each measurement (assuming a good

setup design).

· Make sure the measurement is made at a high enough level that it is not

influenced by DUT-generated and ambient noise.

· The Signal Generator power level should be at least -50 dBm.
· Monitor these limits during mass-production ramp-up to determine if further

adjustments are needed.

Note: The value measured by the DUT depends on the test setup and DUT design. Host
RF cabling loss, antenna efficiency and pattern, test antenna efficiency and pattern, and
choice of shield box all significantly influence the measurement.

Note: When doing the same test over the air in an RF chamber, values are likely to be
significantly lower.

LTE RF receive path test

Note: This procedure segment is performed in

Step 13

of the

Production test procedure

page 74.

Table C-1

contains parameters used in the suggested test procedure that follows.

Table C-1: Test settings — Receive path

Mode

Test category

Bands

B13

B17

LTE

Frequency

(MHz)

753.0

742.0

2134.5

Band

Channel

23230

23790

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