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Raw data reference
Tuneup
August 2004
© Tait Electronics Ltd
Raw data reference
Volt Ref/TCXO/VCO/VCXO tab
AD6521 Volt
Reference Offset
Shows the result of the AD6521 Volt Ref test.
Tx TCXO and Rx
TCXO
Show the results of calibrating the TCXO during the TCXO/VCO Mod
Dev test.
VCO Mod Dev
Constant
Shows the result of calibrating the VCO deviation, during the TCXO/
VCO Mod Dev test.
VCXO Offset 0 to 4
These values specify the five VCXO offset frequencies (in Hz), used during
the radio’s power-up auto-calibration sequence.
KVCXO Chk Val 1 to
4
These values show the VCXO calculated gain (Hz/V).
VCO Auto Cal Check tab
VCO Freq Cal Pt 0 to
8
These values specify the VCO calibration frequencies (in Hz), used during
the radio’s power-up auto-calibration sequence.
KVCO Chk Val 1 to 8
These values show the VCO calculated gain (kHz/V).
Receiver tab
RSSI Receiver Gain
Factor
Sets a receiver gain factor (in dB) that is used during the calibration of RSSI.
RSSI Front End Gain
Correction Factor
Sets the amount of gain that is lowered, when thresholds stated in the
Opening Pt and Hysteresis for Front End Gain Switching fields (Dev/
Squelch/Birdies form) are met.
Rx FE Tune BPF
Settings
Show the results of front-end tuning at various frequencies during the
Receiver test. Each row corresponds with the equivalent frequency stated in
the Rx FE Tune Cal Freq Pts grid (Test Freqs tab). Note that the Rx FE
Tune Voltage is equal to this DAC value divided by 255, multiplied by 3.0
volts.
