N6EX Receiver Performance

Prior to integrating the modified receiver with the rest of the system, the unit was aligned per the TK-931 service manual. The following items were checked/aligned:

Notable Receiver Measurements

Current Consumption

Receive Sensitivity

Threshold Squelch

Audio Frequency Characteristics

Rcvr Audio Plots
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Audio response is flat within 1 dB over the 300 Hz to 3 kHz range. The response before and after the buffer board is virtually identical. Input to the radio for this test was a -70 dBm RF signal with a deviation of + 1.5 kHz. Raw Excel Data Click for raw Excel spreadsheet data of measurements.

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