Tektronix 1705A instruction manual UHF Sine Wave Generator

Checks and Adjustments

h.Change the leveled sine wave generator Frequency to 5 MHz, Amplitude Multiplier to X1, and the Amplitude to 3.0 (14 dBm).

i.CHECK - for 1 marker every 5 Divisions, ±1 Division (adjust CENTER FREQUENCY, if necessary).

j.Repeat parts f. through i. with CENTER FREQUENCY at 950 MHz and 1700 MHz.

k.Remove the leveled sine wave generator and comb generator from the 1705A L-BAND INPUT.

l.Connect the UHF signal generator output to the 1705A L-BAND INPUT. See Figure 5-6.

VARIABLE

AUTOTRANSFORMER L-BAND

INPUT

1705A

UHF SINE

WAVE

GENERATOR

Figure 5-6: Using the UHF Signal Generator to check L- Band Span/Division, Readout, Gain, and Flatness

m.Set the UHF signal generator Amplitude to -50 dBm and Frequency to 1000 MHz.

n.Set the 1705A SPAN/DIV to FULL. Dial the CENTER FREQUENCY until readout reads 1000 MHz.

o.CHECK - that the marker is intensified.

p.Set SPAN/DIV to 10 MHz.

q.CHECK - that the marker is on screen.

r.Position the marker under the caret with the CENTER FREQUENCY control.

5- 14 1705A Spectrum Monitor