TB 9-6625-2339-35
(b) AMPLITUDE to -20 dBm.
(3) Setup measuring receiver to measure power in dBm at 50 MHz.
(4) Adjust synthesizer/level generator power level for a measuring receiver
indication of -20 dBm.
(5) Record measuring receiver indication in Actual power column of table 16 below.
(6) Connect TI AMPTD REF OUT to RF INPUT 50Ω.
(7) Press TI keys and enter values as listed in (a) through (l) below:
(a) Preset.
(b) Factory Preset softkey if it is displayed.
(c) System, [Alignments].
(d) [Align Now], [All] (wait for alignment to finish).
(e) ◄Return, [Auto Align], [Off].
(f) FREQUENCY, [Center Freq], 50, [MHz].
(g) SPAN, 2 [kHz].
(h) BW/Avg, [Res BW] (Man), 1, [kHz].
(i) [Video BW Man], 1, [kHz].
(j) Sweep, [Points 401], Enter.
(k) Amplitude, 20, [-dBm], [Attenuation] (Man), 10, [dB], [Scale Type] (Log).
(l) Amplitude, [More], [Y Axis Units] (or Amptd Units), [Volts],
Det/Demod, [Detector], [Sample], ◄Return.
(8) Disconnect synthesizer/level generator OUTPUT 50Ω from power sensor.
(9) Disconnect TI AMPTD REF OUT from RF INPUT 50Ω.
(10) Connect synthesizer/level generator OUTPUT 50Ω to TI RF INPUT 50Ω.
(11) Press TI Peak Search (or Search) key.
(12) Convert the marker amplitude reading (Mkr1) from volts to dBm using the
following equation and record value in table 16.
50Ω Input Marker Amptd (dBm) = 10 X Log(Mkr (V / 0.05))
Marker Amptd (dBm) __________________ dBm
(13) Subtract the measuring receiver reading recorded in step (5) above from the
marker amptd calculated in step (12) above and record in table 16 as absolute amplitude
accuracy (Log). Verify the difference recorded in table 16 is within the limits specified.
(14) Press TI keys and enter values as listed in (a) through (b) below:
(a) AMPLITUDE, [Scale Type] (Lin)
(b) Peak Search (or Search)
