Checks and Adjustments
1705A Spectrum Monitor 5-9
! !
SG503
VARIABLE
AUTOTRANSFORMER
70MHz
INPUT
1705A
Figure5 -3: Output of the SG503 connected directly to the 1705A 70 MHz INPUT
g. Set the leveledsine wave generator Frequency to 45 MHz, Amplitude
Multiplier to .01, and Amplitude to 0.5 (--42 dBm).
h. Set the 1705A SPAN/DIVto FULL, and the CENTER FREQUENC Y to
read 45 MHz. Check to see that the markeris intensified.
i. Set the 1705A SPAN/DIVto 1 MHz and check that the marker is on
screen.
j. Position the marker under the readoutcaret with the CENTER F RE-
QUENCY control.
k. CHECK -- that readout reads 45, ±1 count.
l. Set SPAN/DIVto 100 kHz.
m. CHECK -- that the marker is on screen.
n. Repeat steps h. through m., substituting 95 MHz.
o. Leave SPAN/DIVat 100 kHz.