TB 9-6625-1914-24
(c) FREQUENCY FINE TUNE control centered.
(d) BANDWIDTH switch to 300 kHz.
(e) SCAN WIDTH (red) switch to PER DIVISION.
(f) SCAN WIDTH PER DIVISION switch to 10 MHz.
(g) INPUT ATTENUATION switch to 0 dB.
(h) TUNING STABILIZER switch to OFF.
(3) Position IF plug-in controls as listed in (a) through (h) below:
(a) BASE LINE CLIPPER control fully ccw.
(b) SCAN TIME PER DIVISION switch to 2 ms.
(c) LOG REF LEVEL switch to -20 dBm.
(d) LOG REF LEVEL vernier control to 0.
(e) LOG/LINEAR switch to LOG (10 dB LOG on Model 8552B).
(f) VIDEO FILTER switch to OFF.
(g) SCAN MODE switch to INT.
(h) SCAN TRIGGER switch to AUTO.
aligned with far left graticule line on display. Record signal generator frequency.
(5) Increase signal generator frequency 80 MHz above frequency recorded in (4)
above. Signal display will move within 0.24 division of the eighth graticule line to the right.
(6) Set BANDWIDTH switch to 3 kHz and SCAN WIDTH PER DIVISION switch
to .05 MHz.
(7) Set IF plug-in SCAN TIME PER DIVISION switch to 10 ms.
(8) Connect equipment as shown in figure 5.
(9) Set signal generator controls as necessary for external modulation.
(10) Adjust signal generator output to 60 MHz and adjust function generator no. 1
output to 50 kHz.
(11) Adjust signal generator and function generator no. 1 amplitude controls until a
signal pip is displayed every 50 kHz across the display.
(12) Adjust FREQUENCY and FREQUENCY FINE TUNE controls until a 50 kHz
signal pip is aligned with far left graticule line on display. A 50 kHz signal pip will
appear within .8 division of eighth graticule line to right.
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