Tektronix 1705A instruction manual Checks and Adjustments, Variable Autotransformer

Checks and Adjustments

SG503

1705A

VARIABLE

AUTOTRANSFORMER

! !

70MHz

INPUT

Figure 5-3: Output of the SG503 connected directly to the 1705A 70 MHz INPUT

g.Set the leveled sine wave generator Frequency to 45 MHz, Amplitude Multiplier to .01, and Amplitude to 0.5 (-42 dBm).

h.Set the 1705A SPAN/DIV to FULL, and the CENTER FREQUENCY to read 45 MHz. Check to see that the marker is intensified.

i.Set the 1705A SPAN/DIV to 1 MHz and check that the marker is on screen.

j.Position the marker under the readout caret with the CENTER FRE- QUENCY control.

k.CHECK - that readout reads 45, ±1 count.

l.Set SPAN/DIV to 100 kHz.

m.CHECK - that the marker is on screen.

n.Repeat steps h. through m., substituting 95 MHz.

o.Leave SPAN/DIV at 100 kHz.

1705A Spectrum Monitor 5- 9