Technical data

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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions

TEST_01. TX and RX Stand-by Current Drain

This test measures the power-supply current required by the FM radio while it’s in

both the transmit and receive modes. While transmitting, current drain is

measured without modulation, and while receiving, stand-by current drain is

measured after the squelch control is set to maximum.

This test requires that the test set has the optional current-measuring circuit,

Option 003, or that an external power supply is configured to the test set. If an

external power supply is configured, this test reads current from the external

supply.

NOTE: The HP 11807A software does not zero the test set’s current-measuring circuit. Zeroing this

circuit should be done periodically.

The transmitter and receiver stand-by current drain is measured in Amps.

Pass/Fail Limits Used

Pass/Fail Limit 14, RX Stand-by Current Drain

Pass/Fail Limit 27, TX Current Drain